OIL SEEPAGES TRAPPED IN MIOCENE FORCED REGRESSIVE SILICICLASTIC
•
0 likes•466 views
1. The document describes oil seepages trapped in Miocene sedimentary sequences in the Baronga Islands of Myanmar. 2. The sequences include the Laung and Yezaw Formations deposited in deep marine environments from Early to Middle Miocene, overlain by regressive sandbodies and thick mudstones. 3. The sequences were influenced by rapid falls in base level and basinward downfaulting, forming forced regressive wedged systems tracts with slumping, slope bypass, and channel infilling.
Report
Share
Report
Share
Recommended
Geotectonic setting of Singapore and SE Asia
1) Singapore is located on the Sunda Plate near the boundary with the Indo-Australian Plate, which has experienced subduction, volcanism, and basin formation over geologic time due to the opening and closing of surrounding ocean basins.
2) Two major tectonic activities can cause major earthquakes in the region - subduction of the Indo-Australian Plate under the Sunda Plate, and strike-slip movement along the Sumatra Fault.
3) The worst earthquake scenarios modeled are a Mw 9.5 subduction earthquake 600 km from Singapore or a Mw 7.8 earthquake on the Sumatra Fault 400 km away, demonstrating Singapore's vulnerability to seismic activity in the region.
Cenozoic Geodynamic Evolution of the Burma-Andaman Platelet* by Claude Rangin
The Burma-Andaman platelet extends from northern Sumatra to the Assam belt in India and has evolved complexly during the Cenozoic as the boundary between the India and Sundaland plates. GPS data shows the Sagaing-Shan fault absorbs half of the estimated 3.5 cm/yr motion between the plates. The Andaman Sea spreading center and connected faults have accommodated 2 cm/yr of motion since the early Pliocene. Central Myanmar basins contain up to 10 km of Eocene to late Miocene clastic sediments deposited in pull-apart basins that were later inverted. Since 10 million years ago, the northward motion of India and crustal flow from the Tibetan
Revisit to Baronga Islands, KyiKhin & AungMoe, 2015 (Rev. 3)
Presentation on Structural analysis of Slump Folds from Neogene Deep-marine Slope - Shallow Marine Deposits to get some trace of India-Asia subduction and Collision.
Tectonic Processes and Metallogeny along the Tethyan Mountain Ranges of the M...
https://www.researchgate.net/publication/309130798_Tectonic_Processes_and_Metallogeny_along_the_Tethyan_Mountain_Ranges_of_the_Middle_East_and_South_Asia_Oman_Himalaya_Karakoram_Tibet_Myanmar_Thailand_Malaysia
The genesis of mineral deposits has been widely linked to speci c tectonic settings, but has less frequently been linked to tectonic processes. Understanding processes of oceanic and continental collision tectonics is crucial to understanding key factors leading to the genesis of magmatic-, metamorphic-, hydrothermal-, and sedimentary-related mineral deposits. Geologic studies of most ore deposits typically focus on the nal stages of concentration and emplacement. The ultimate source (mantle, lower crust, upper crust) of mineral deposits in many cases remains more cryptic. Uniquely, along the Tethyan collision zones of Asia, every stage of the conver- gence process can be studied from the initial oceanic settings where ophiolite complexes were formed, through subduction zone and island-arc settings with ultrahigh- to high-pressure metamorphism, to the continental col- lision settings of the Himalaya, and advanced, long-lived collisional settings such as Afghanistan, the Karakoram Ranges, and the Tibetan plateau. The India-Asia collision closed the intervening Neotethys ocean at ~50 Ma and resulted in the formation of the Himalayan mountain ranges, and increased crustal thickening, metamor- phism, deformation, and uplift of the Karakoram-Hindu Kush ranges, Tibetan plateau, and older collision zones across central Asia. Metallogenesis in oceanic crust (hydrothermal Cu-Au; Fe, Mn nodules) and mantle (Cr, Ni, Pt) can be deduced from ophiolite complexes preserved around the Arabia/India-Asia collision (Oman, Ladakh, South Tibet, Myanmar, Andaman Islands). Tectonic-metallogenic processes in island arcs and ancient subduc- tion complexes (VMS Cu-Zn-Pb) can be deduced from studies in the Dras-Kohistan arc (Pakistan) and the various arc complexes along the Myanmar-Andaman segment of the collision zone. Metallogenesis of Andean- type margins (Cu-Au-Mo porphyry; epithermal Au-Ag) can be seen along the Jurassic-Eocene Transhimalayan ranges of Pakistan, Ladakh, South Tibet, and Myanmar. Large porphyry Cu deposits in Tibet are related to both precollisional calc-alkaline granites and postcollisional alkaline adakite-like intrusions. Metallogenesis of continent-continent collision zones is prominent along the Myanmar-Thailand-Malaysia Sn-W granite belts, but less common along the Himalaya. The Mogok metamorphic belt of Myanmar is known for its gemstones associated with regional high-temperature metamorphism (ruby, spinel, sapphire, etc). In Myanmar it is likely that extensive alkaline magmatism has contributed extra heat during the formation of high-temperature meta- morphism. This paper attempts to link metallogeny of the Himalaya-Karakoram-Tibet and Myanmar collision zone to tectonic processes derived from multidisciplinary geologic studies.
Tectono-magmatic Development of Accreted West Burma Block from Gondwana Land-...
Western Myanmar, between the strike-slip Sagiang Fault in the east and the frontal thrusts of the Indo-Burman Ranges in the west, was identified by Mitchell (1989) as an allochthonous continental block, now largely overlain by Cenozoic sediments and an active magmatic arc.
Mitchell (1989) named this continental block ‘Mount Victoria Land’ from an occurrence of metamorphic rocks, taken to represent the outcrop of the continental basement. This block has been termed the ‘West Burma Block’ by Hutchison (1989).
Neogene sedimentary fringe (2012)
1) The document describes the geology of the Arakan Coastal Belt in western Myanmar, including the stratigraphy and depositional environments recorded by the Miocene sedimentary sequences in the region.
2) The Lower Miocene Laung Formation and lower Middle Miocene Yezaw Formation were deposited in deep marine slope and shelf environments, recording episodic uplift of the Himalayas.
3) The Upper Miocene Mayu Formation represents a southward prograding shelf-delta system, indicating deeper marine deposition further south and east beyond the prograding delta.
Preliminary Studies of the Litho-Structural Evolution of Areas Around Obudu N...
ABSTRACT: Rocks underlying the northeastern sector of Obudu area forms part of the Bamenda massif which is a westward extension of the Precambrian terrains of Cameroon into southeastern Nigeria. These rocks are frequently found in the basement complex of Nigeria and include the migmatitic gneiss as the early metamorphic tectonites constituting over 60% of the outcropping rocks in the study area. The basement rock of the study area comprised of the migmatite gneiss and biotite-hornblende garnetiferous gneiss as well as the porphyroblastic gneiss and granite gneiss which formed the basement intruded by the Older granites (Pan-African granitoids). The Older granites in this area include charnockite, porphyritic granite, medium grained granite, diorite and pegmatite/aplite with relatively undeformed veins of dolerite and quartz. The presence of garnet nodules in the biotite-hornblende gneiss indicates high grade tectono-thermal metamorphism of a possible sedimentary protholith. The shearing observed in some rock outcrops are indication that there have been a series of structural deformation alongside magmatism and metamorphism in the area.
The formation of the makassar strait guntoro (1999)
The document discusses the formation of the Makassar Strait between southeast Kalimantan and western Sulawesi. It summarizes that several hypotheses have been proposed to explain its evolution, with the main agreement being that southeast Kalimantan and western Sulawesi were once close together and their separation is due to the opening of the Makassar Strait, though the age and driving mechanism are still debated. The study interprets the strait's history using seismic profiles, gravity models, and geological data, concluding that it formed from the vertical sinking of a subducting oceanic plate east of western Sulawesi, leading to trench rollback and extension/rifting of continental crust above the subduction zone, causing the
Recommended
Geotectonic setting of Singapore and SE Asia
1) Singapore is located on the Sunda Plate near the boundary with the Indo-Australian Plate, which has experienced subduction, volcanism, and basin formation over geologic time due to the opening and closing of surrounding ocean basins.
2) Two major tectonic activities can cause major earthquakes in the region - subduction of the Indo-Australian Plate under the Sunda Plate, and strike-slip movement along the Sumatra Fault.
3) The worst earthquake scenarios modeled are a Mw 9.5 subduction earthquake 600 km from Singapore or a Mw 7.8 earthquake on the Sumatra Fault 400 km away, demonstrating Singapore's vulnerability to seismic activity in the region.
Cenozoic Geodynamic Evolution of the Burma-Andaman Platelet* by Claude Rangin
The Burma-Andaman platelet extends from northern Sumatra to the Assam belt in India and has evolved complexly during the Cenozoic as the boundary between the India and Sundaland plates. GPS data shows the Sagaing-Shan fault absorbs half of the estimated 3.5 cm/yr motion between the plates. The Andaman Sea spreading center and connected faults have accommodated 2 cm/yr of motion since the early Pliocene. Central Myanmar basins contain up to 10 km of Eocene to late Miocene clastic sediments deposited in pull-apart basins that were later inverted. Since 10 million years ago, the northward motion of India and crustal flow from the Tibetan
Revisit to Baronga Islands, KyiKhin & AungMoe, 2015 (Rev. 3)
Presentation on Structural analysis of Slump Folds from Neogene Deep-marine Slope - Shallow Marine Deposits to get some trace of India-Asia subduction and Collision.
Tectonic Processes and Metallogeny along the Tethyan Mountain Ranges of the M...
https://www.researchgate.net/publication/309130798_Tectonic_Processes_and_Metallogeny_along_the_Tethyan_Mountain_Ranges_of_the_Middle_East_and_South_Asia_Oman_Himalaya_Karakoram_Tibet_Myanmar_Thailand_Malaysia
The genesis of mineral deposits has been widely linked to speci c tectonic settings, but has less frequently been linked to tectonic processes. Understanding processes of oceanic and continental collision tectonics is crucial to understanding key factors leading to the genesis of magmatic-, metamorphic-, hydrothermal-, and sedimentary-related mineral deposits. Geologic studies of most ore deposits typically focus on the nal stages of concentration and emplacement. The ultimate source (mantle, lower crust, upper crust) of mineral deposits in many cases remains more cryptic. Uniquely, along the Tethyan collision zones of Asia, every stage of the conver- gence process can be studied from the initial oceanic settings where ophiolite complexes were formed, through subduction zone and island-arc settings with ultrahigh- to high-pressure metamorphism, to the continental col- lision settings of the Himalaya, and advanced, long-lived collisional settings such as Afghanistan, the Karakoram Ranges, and the Tibetan plateau. The India-Asia collision closed the intervening Neotethys ocean at ~50 Ma and resulted in the formation of the Himalayan mountain ranges, and increased crustal thickening, metamor- phism, deformation, and uplift of the Karakoram-Hindu Kush ranges, Tibetan plateau, and older collision zones across central Asia. Metallogenesis in oceanic crust (hydrothermal Cu-Au; Fe, Mn nodules) and mantle (Cr, Ni, Pt) can be deduced from ophiolite complexes preserved around the Arabia/India-Asia collision (Oman, Ladakh, South Tibet, Myanmar, Andaman Islands). Tectonic-metallogenic processes in island arcs and ancient subduc- tion complexes (VMS Cu-Zn-Pb) can be deduced from studies in the Dras-Kohistan arc (Pakistan) and the various arc complexes along the Myanmar-Andaman segment of the collision zone. Metallogenesis of Andean- type margins (Cu-Au-Mo porphyry; epithermal Au-Ag) can be seen along the Jurassic-Eocene Transhimalayan ranges of Pakistan, Ladakh, South Tibet, and Myanmar. Large porphyry Cu deposits in Tibet are related to both precollisional calc-alkaline granites and postcollisional alkaline adakite-like intrusions. Metallogenesis of continent-continent collision zones is prominent along the Myanmar-Thailand-Malaysia Sn-W granite belts, but less common along the Himalaya. The Mogok metamorphic belt of Myanmar is known for its gemstones associated with regional high-temperature metamorphism (ruby, spinel, sapphire, etc). In Myanmar it is likely that extensive alkaline magmatism has contributed extra heat during the formation of high-temperature meta- morphism. This paper attempts to link metallogeny of the Himalaya-Karakoram-Tibet and Myanmar collision zone to tectonic processes derived from multidisciplinary geologic studies.
Tectono-magmatic Development of Accreted West Burma Block from Gondwana Land-...
Western Myanmar, between the strike-slip Sagiang Fault in the east and the frontal thrusts of the Indo-Burman Ranges in the west, was identified by Mitchell (1989) as an allochthonous continental block, now largely overlain by Cenozoic sediments and an active magmatic arc.
Mitchell (1989) named this continental block ‘Mount Victoria Land’ from an occurrence of metamorphic rocks, taken to represent the outcrop of the continental basement. This block has been termed the ‘West Burma Block’ by Hutchison (1989).
Neogene sedimentary fringe (2012)
1) The document describes the geology of the Arakan Coastal Belt in western Myanmar, including the stratigraphy and depositional environments recorded by the Miocene sedimentary sequences in the region.
2) The Lower Miocene Laung Formation and lower Middle Miocene Yezaw Formation were deposited in deep marine slope and shelf environments, recording episodic uplift of the Himalayas.
3) The Upper Miocene Mayu Formation represents a southward prograding shelf-delta system, indicating deeper marine deposition further south and east beyond the prograding delta.
Preliminary Studies of the Litho-Structural Evolution of Areas Around Obudu N...
ABSTRACT: Rocks underlying the northeastern sector of Obudu area forms part of the Bamenda massif which is a westward extension of the Precambrian terrains of Cameroon into southeastern Nigeria. These rocks are frequently found in the basement complex of Nigeria and include the migmatitic gneiss as the early metamorphic tectonites constituting over 60% of the outcropping rocks in the study area. The basement rock of the study area comprised of the migmatite gneiss and biotite-hornblende garnetiferous gneiss as well as the porphyroblastic gneiss and granite gneiss which formed the basement intruded by the Older granites (Pan-African granitoids). The Older granites in this area include charnockite, porphyritic granite, medium grained granite, diorite and pegmatite/aplite with relatively undeformed veins of dolerite and quartz. The presence of garnet nodules in the biotite-hornblende gneiss indicates high grade tectono-thermal metamorphism of a possible sedimentary protholith. The shearing observed in some rock outcrops are indication that there have been a series of structural deformation alongside magmatism and metamorphism in the area.
The formation of the makassar strait guntoro (1999)
The document discusses the formation of the Makassar Strait between southeast Kalimantan and western Sulawesi. It summarizes that several hypotheses have been proposed to explain its evolution, with the main agreement being that southeast Kalimantan and western Sulawesi were once close together and their separation is due to the opening of the Makassar Strait, though the age and driving mechanism are still debated. The study interprets the strait's history using seismic profiles, gravity models, and geological data, concluding that it formed from the vertical sinking of a subducting oceanic plate east of western Sulawesi, leading to trench rollback and extension/rifting of continental crust above the subduction zone, causing the
Paper sarulla
This document summarizes the tectonic and stratigraphic evolution of the Sarulla graben geothermal area in North Sumatra, Indonesia. It discusses the regional tectonic setting involving strike-slip movement along the Sumatra Fault zone. Exploration efforts in the Sarulla contract area provided data on the fault geometry and displacement history, as well as the Quaternary volcanic history. Four geothermal systems in the area are closely associated with major faults and volcanic centers. The oldest exposed rocks are late Paleozoic metasediments, overlain by Miocene marine sediments to the east. Younger units include Plio-Pleistocene volcanic rocks from centers along the Sumatra Fault zone that fill the Sarulla
Survey by Group 2
The document summarizes a road survey conducted in Shrine Hills, Davao City. The survey spanned 1500 meters from a restobar to Barangay Ma-a along the hilly roads of Shrine Hills. Observations found that the top portions of the hills are stable but the flanks are weak and prone to landslides. It was concluded that infrastructure and development should be avoided on the unstable flanks, while the top portions could support more building. Further studies and environmental projects were recommended to mitigate geo-hazards in the area.
pendekatan tektonik indonesia Geologi Pngea UPN
The document discusses tectonic approaches to understanding Indonesia's geology. It summarizes Indonesia's tectonic setting between several major plates. It also describes the different types of crust and tectonic environments found in Indonesia, including active margins along subduction zones and passive margins along former rift zones. Additionally, it outlines how sedimentary basins in Indonesia have evolved over time from rifting to drifting to collision between plates through processes like inversion and orogeny.
Granomeric Analysis of Mamu Formation and Enugu Shale around Ozalla and Its E...
The study area lies within the Anambra Basin which geologically made up of Enugu Shale and
Mamu Formation. This study aimed at determining the geology and depositional environments of these
Formations through field relationship and grain size distribution as well as morphometric studies. The field
data shows Enugu Shale as fissile, light grey with extraformational clast which graded into Mamu Formation
which is made up of alternating sequence of shale, siltstone, mudstone, coal and sand, it shows a fluctuating
environment. The granulometric study of sand member of Mamu Formation shows characteristic very well
sorted, fine to medium grains which were deposited in relatively turbulent well aerated marine environment
probably above wave base. The bivariate and the multivariate results reveal Aeolian/shallow marine deposit.
The fissility of Enugu Shale suggests that it was deposited in low energy environment, distal to proximal lagoon
environment and the presence of extraformatonal clast indicates fluvial incursion. However, it can be concluded
that Mamu Formation was deposited in fluctuating environment ranging from an oxygenated shallow marine to
acidic swampy environment. Hence is paralic Formation.
Gilgit field report by zeeshan (uoh )
Five days field report of Gilgit Baltistan .
Started from Mansehra then Besham then Kohistan then Gilgit and at last stop is in Hunza.
Visited dasu and basha dam.
each and every feature realed to geology is marked in this field report.
COAL DEPOSIT IN MAMU FORMATION...
This document provides an overview of coal deposits in the Mamu Formation in the Anambra Basin of Nigeria. It discusses the geology, stratigraphy, evolution and paleoenvironmental characteristics of the basin. It also describes the exploration history of coal in the basin, focusing on deposits in the Mamu Formation. Finally, it discusses the economic potential of the coal deposits for combustion, gasification, and liquefaction. Nigeria has over 2 billion tonnes of coal reserves, with about 650 million tonnes proven, primarily located in the Anambra Basin.
A research on resistivity measurements on wadi el nakhel
The aim of the study:- investigate the subsurface geological and hydrogeological conditions in
this area, Using Terrameter SAS A300 and made Schlumerger array to measure the apparent resistivity to get a 2D Electric Cross Section and determine the aquifer layer depth.
Petrography of ajali sandstone in ayogwiri – fugar – orame area of western an...
- The document analyzes the petrography of the Ajali Sandstone Formation in the Western Anambra Basin of Nigeria to understand its diagenetic and depositional history.
- Thin section analysis shows the sandstone is a quartz arenite composed mainly of subangular to subrounded quartz grains that have undergone compaction, dissolution, alteration, and corrosion during diagenesis. This left the sandstone friable with little cement.
- Samples from three locations - Ayogwiri, Fugar, and Orame - exhibited similar diagenetic features including authigenic quartz, reaction rims, and corroded grain margins. This diagenesis reduced cementation and led to
Keys to paleogeographical interpretation of the enugu and the mamu formations...
The document analyzes the lithofacies, palynological assemblages, and facies associations of the Enugu and Mamu Formations in southeastern Nigeria to interpret their depositional environments, paleogeography, and ages. Palynological analysis indicates a Late Campanian to Early Maastrichtian age for the Enugu Formation and Early-Mid Maastrichtian age for the Mamu Formation. The coarsening upward lithofacies and decrease in marine dinoflagellates from the Enugu to Mamu Formations suggest shallowing of the sea during regression. Facies associations grade from transgressive in the Enugu to regressive in the Mamu, representing marine transgression and subsequent shore
Lithofacies Analysis and Petroleum Potentials of Parts of Ikom-Mamfe Embaymen...
An integrated study involving detailed lithofacies analysis and source rock evaluation were carried out to reconstruct the paleoenvironment and assess the petroleum potentials of the Ikom–Mamfe embayment, southeastern Nigeria. Sedimentological field mapping involving detailed description of lithologic characteristics and facies characterisation was carried out. Geochemical studies were carried out to determine the quantity of organic matter total organic carbon (TOC), soluble organic matter (SOM), the organic matter quality (organic matter type) and level of maturity. Results show that the dominant vertical succession of the various lithofacies indicate a general finning upward succession with basal massive pebbly sandstone, medium to coarse grained sandstones with intercalation of shale and mudstones. Seven lithofacies A to G, were identified. These include: conglomerates, massive pebbly sandstone, trough cross-bedded sandstone, planar cross-bedded sandstone, shale/mudstone facies. These facies were compared with established standard facies association for determining paleoenvironment of deposition. The facies analysis carried out pointed to fluvial (alluvial – braided) depositional system as the environment of deposition. TOC values range from 0.05 – 4.13 wt% indicating poor to excellent and SOM range from 200 – 6000 ppm indicating also poor to excellent. The amount of pyrolizable carbon derived as S1 and S2 peaks suggested that the source rocks possess organic matter capable of generating hydrocarbons. Hydrogen and oxygen indices (HI and OI) ranged from 0.24 to 656 and 0.53 to 61.90 mg/gTOC respectively. Analyses of the evaluated source rock shows that the hydrocarbon potential of the study area is lean and typically of a reworked terrestrial deposit of fluvial depositional system.
Mineralogy and geochemical appraisal of paleo redox indicators in maastrichti...
This summary provides the key details about the document in 3 sentences:
The document discusses a study of the mineralogy and geochemistry of Maastrichtian shale samples from the Mamu Formation in the Anambra Basin of Nigeria. Various analytical techniques were used to characterize the shale samples and investigate paleo-redox conditions. The results suggest the shales were deposited under oxidizing conditions based on mineralogical and geochemical proxies, and were derived from felsic source rocks that experienced strong chemical weathering.
Eastern dharwar craton
This document summarizes information about the Eastern Dharwar Craton (EDC) region of India. The EDC covers around 450,000 square kilometers and contains several greenstone belts formed from volcanic and sedimentary rocks. It is bounded by mobile belts and separated from the Western Dharwar Craton by the Chitradurga Shear Zone. The EDC contains older gneissic basement rocks overlain by the Warangal Group and greenstone belts of the Dharwar Supergroup, along with the large Closepet Granite intrusion and regions metamorphosed to amphibolite and granulite facies.
Impact of Structural Lineaments on Mineralized Occurrences in North Abu Rushe...
This document discusses structural lineaments in the North Abu Rusheid-Sikait area of Egypt and their impact on mineral occurrences. It finds that lineaments are arranged in two main clusters trending N-S and NW-SE/WNW-ESE, controlling emplacement of granitic intrusions. A mylonitic shear zone trending ENE-WSW separates granites from ophiolitic mélange and hosts evidence of hydrothermal activity and secondary uranium mineralization. Most mineralization is related to extensional events creating space for mineral entrapment along shear zones like the ENE-WSW zone containing fluorite, molybdenite, and others.
A Comparison of Structural Styles and Prospectivity along the Atlantic Margin...
1) The structural style of the Atlantic margin offshore West Africa shows differences between the passive rifted Northwest African Atlantic Margin (NWAAM) and the West African Transform Margin (WATM).
2) The WATM is characterized by basins between transform faults containing large Upper Cretaceous turbidite systems with proven oil discoveries, while the NWAAM contains multiple petroleum systems trapped against salt structures, in carbonate reefs, and in syn-rift structures.
3) Both regions remain largely untested, particularly the NWAAM in deepwater, and further exploration has potential to make new hydrocarbon discoveries.
Field report of Haxara-Abbottabad area
This document provides an overview of a geological field work trip to the Hazara area of northern Pakistan led by Dr. Azmat khan. It discusses the stratigraphy and regional tectonics observed. The key points are:
1) The trip involved studying the stratigraphy of the Hazara arc and surrounding areas over 3 days, making stops to examine formations from the Precambrian to Miocene ages.
2) The Hazara arc forms the western border of the Hazara-Kashmir syntaxes and is bounded by thrust faults. It has undergone folding and faulting due to the collision of the Indian and Eurasian plates.
3) The stratigraphy includes metamorphic and sedimentary
Field report Gilgit Baltistan by Samiullah
This document provides a geological field report from a student's field trip through northern Pakistan. The student visited areas from Muslimabad to Hunza over 6 days, observing and documenting different rock types. Key stops included Besham, Kohistan, Gilgit, and Hunza. Rocks observed included basalts, andesites, metasedimentary rocks, diorites, dunites, gabbro, basalt, gabbro norites and pyroxenites. The report includes an introduction, literature review on the geology of the areas visited, and detailed documentation of stops made each day, including observations of rock types and structures.
Wilson200722222222222
This document summarizes active continental margins, where a continental plate overrides an oceanic plate being subducted. It focuses on the Andes as the archetypal example, describing three volcanic zones (northern, central, southern). The central zone contains thicker Precambrian crust and produces more silica-rich magmas compared to island arcs. Active volcanism occurs where subduction is steep (~30°) but not where aseismic ridges cause shallow subduction (<10°). Magmas result from mantle and crustal melting, interacting with continental crust, giving them distinct geochemical signatures. Large batholith belts were emplaced during periods of uplift and erosion when subduction shallows.
TECTONIC FRAMEWORK OF EAST GABAL NUQRA AREA, SOUTH EASTERN DESERT, EGYPT
The document describes a ring dyke complex located east of Gabal Nuqra in Egypt. Three magmatic events formed the rocks in the area: 1) Granites associated with the Nubian sandstone basin formation. 2) Volcanic ring dykes post-dating the basin. 3) A trachy-basaltic flow related to Red Sea rifting. Structural analysis identified three tectonic events: 1) NE-SW extension formed the Nubian basin. 2) NW-SE extension reactivated pre-existing faults. 3) E-W to ENE-WSW faults localized ring dyke emplacement and configured the trachy-basaltic flow. Hydrothermal activity
basin stratigraphic analysis of Tanga,Ruvu and mandawa basin in Tanzania
lithostratigraphic, biostratigraphic, chronostratigraphic analysis of Tanga,Ruvu and Mandawa basin in tanzania
permian-ultrafelsic-a-type-granite-from-besar-islands-group-johor-peninsular-...
permian-ultrafelsic-a-type-granite-from-besar-islands-group-johor-peninsular-...WAN NUR ATIQAH WAN ISMAIL
This document describes an ultrafelsic A-type granite from the Besar Islands group off the southeast coast of peninsular Malaysia. The granite occurs as a pluton sized body intruding metasedimentary rocks on three islands - Besar, Tengah, and Hujung. It is highly felsic with an average SiO2 content of 76.5% and contains over 70% K-feldspar and quartz. Textural and mineralogical analysis indicates the granite formed at high temperatures through partial melting of a felsic infracrustal source. Regionally, the granite body provides evidence for extensional tectonism in the Indo-China terrane during theRocks of Singapore (2013)
This geological map of Singapore from 2009 shows pyroclasts bearing basaltic andesite. Measurements of a particular plane indicate a strike of 87.7 degrees, a dip of 32.5 degrees, and a pole trend of 357.7 degrees with a plunge of 57 degrees. The document also includes a quote by H. H. Read from 1940 stating that the best geologist is one who has seen the most rocks.
Outcrops of SG_KK & KL_August 2016_Final_20.09.16
This compilation was aimed to record for rare geological outcrops which were gradually diminished by infrastructural and construction projects.
Sharing information among fellow geologists working in Singapore and abroad.
More Related Content
What's hot
Paper sarulla
This document summarizes the tectonic and stratigraphic evolution of the Sarulla graben geothermal area in North Sumatra, Indonesia. It discusses the regional tectonic setting involving strike-slip movement along the Sumatra Fault zone. Exploration efforts in the Sarulla contract area provided data on the fault geometry and displacement history, as well as the Quaternary volcanic history. Four geothermal systems in the area are closely associated with major faults and volcanic centers. The oldest exposed rocks are late Paleozoic metasediments, overlain by Miocene marine sediments to the east. Younger units include Plio-Pleistocene volcanic rocks from centers along the Sumatra Fault zone that fill the Sarulla
Survey by Group 2
The document summarizes a road survey conducted in Shrine Hills, Davao City. The survey spanned 1500 meters from a restobar to Barangay Ma-a along the hilly roads of Shrine Hills. Observations found that the top portions of the hills are stable but the flanks are weak and prone to landslides. It was concluded that infrastructure and development should be avoided on the unstable flanks, while the top portions could support more building. Further studies and environmental projects were recommended to mitigate geo-hazards in the area.
pendekatan tektonik indonesia Geologi Pngea UPN
The document discusses tectonic approaches to understanding Indonesia's geology. It summarizes Indonesia's tectonic setting between several major plates. It also describes the different types of crust and tectonic environments found in Indonesia, including active margins along subduction zones and passive margins along former rift zones. Additionally, it outlines how sedimentary basins in Indonesia have evolved over time from rifting to drifting to collision between plates through processes like inversion and orogeny.
Granomeric Analysis of Mamu Formation and Enugu Shale around Ozalla and Its E...
The study area lies within the Anambra Basin which geologically made up of Enugu Shale and
Mamu Formation. This study aimed at determining the geology and depositional environments of these
Formations through field relationship and grain size distribution as well as morphometric studies. The field
data shows Enugu Shale as fissile, light grey with extraformational clast which graded into Mamu Formation
which is made up of alternating sequence of shale, siltstone, mudstone, coal and sand, it shows a fluctuating
environment. The granulometric study of sand member of Mamu Formation shows characteristic very well
sorted, fine to medium grains which were deposited in relatively turbulent well aerated marine environment
probably above wave base. The bivariate and the multivariate results reveal Aeolian/shallow marine deposit.
The fissility of Enugu Shale suggests that it was deposited in low energy environment, distal to proximal lagoon
environment and the presence of extraformatonal clast indicates fluvial incursion. However, it can be concluded
that Mamu Formation was deposited in fluctuating environment ranging from an oxygenated shallow marine to
acidic swampy environment. Hence is paralic Formation.
Gilgit field report by zeeshan (uoh )
Five days field report of Gilgit Baltistan .
Started from Mansehra then Besham then Kohistan then Gilgit and at last stop is in Hunza.
Visited dasu and basha dam.
each and every feature realed to geology is marked in this field report.
COAL DEPOSIT IN MAMU FORMATION...
This document provides an overview of coal deposits in the Mamu Formation in the Anambra Basin of Nigeria. It discusses the geology, stratigraphy, evolution and paleoenvironmental characteristics of the basin. It also describes the exploration history of coal in the basin, focusing on deposits in the Mamu Formation. Finally, it discusses the economic potential of the coal deposits for combustion, gasification, and liquefaction. Nigeria has over 2 billion tonnes of coal reserves, with about 650 million tonnes proven, primarily located in the Anambra Basin.
A research on resistivity measurements on wadi el nakhel
The aim of the study:- investigate the subsurface geological and hydrogeological conditions in
this area, Using Terrameter SAS A300 and made Schlumerger array to measure the apparent resistivity to get a 2D Electric Cross Section and determine the aquifer layer depth.
Petrography of ajali sandstone in ayogwiri – fugar – orame area of western an...
- The document analyzes the petrography of the Ajali Sandstone Formation in the Western Anambra Basin of Nigeria to understand its diagenetic and depositional history.
- Thin section analysis shows the sandstone is a quartz arenite composed mainly of subangular to subrounded quartz grains that have undergone compaction, dissolution, alteration, and corrosion during diagenesis. This left the sandstone friable with little cement.
- Samples from three locations - Ayogwiri, Fugar, and Orame - exhibited similar diagenetic features including authigenic quartz, reaction rims, and corroded grain margins. This diagenesis reduced cementation and led to
Keys to paleogeographical interpretation of the enugu and the mamu formations...
The document analyzes the lithofacies, palynological assemblages, and facies associations of the Enugu and Mamu Formations in southeastern Nigeria to interpret their depositional environments, paleogeography, and ages. Palynological analysis indicates a Late Campanian to Early Maastrichtian age for the Enugu Formation and Early-Mid Maastrichtian age for the Mamu Formation. The coarsening upward lithofacies and decrease in marine dinoflagellates from the Enugu to Mamu Formations suggest shallowing of the sea during regression. Facies associations grade from transgressive in the Enugu to regressive in the Mamu, representing marine transgression and subsequent shore
Lithofacies Analysis and Petroleum Potentials of Parts of Ikom-Mamfe Embaymen...
An integrated study involving detailed lithofacies analysis and source rock evaluation were carried out to reconstruct the paleoenvironment and assess the petroleum potentials of the Ikom–Mamfe embayment, southeastern Nigeria. Sedimentological field mapping involving detailed description of lithologic characteristics and facies characterisation was carried out. Geochemical studies were carried out to determine the quantity of organic matter total organic carbon (TOC), soluble organic matter (SOM), the organic matter quality (organic matter type) and level of maturity. Results show that the dominant vertical succession of the various lithofacies indicate a general finning upward succession with basal massive pebbly sandstone, medium to coarse grained sandstones with intercalation of shale and mudstones. Seven lithofacies A to G, were identified. These include: conglomerates, massive pebbly sandstone, trough cross-bedded sandstone, planar cross-bedded sandstone, shale/mudstone facies. These facies were compared with established standard facies association for determining paleoenvironment of deposition. The facies analysis carried out pointed to fluvial (alluvial – braided) depositional system as the environment of deposition. TOC values range from 0.05 – 4.13 wt% indicating poor to excellent and SOM range from 200 – 6000 ppm indicating also poor to excellent. The amount of pyrolizable carbon derived as S1 and S2 peaks suggested that the source rocks possess organic matter capable of generating hydrocarbons. Hydrogen and oxygen indices (HI and OI) ranged from 0.24 to 656 and 0.53 to 61.90 mg/gTOC respectively. Analyses of the evaluated source rock shows that the hydrocarbon potential of the study area is lean and typically of a reworked terrestrial deposit of fluvial depositional system.
Mineralogy and geochemical appraisal of paleo redox indicators in maastrichti...
This summary provides the key details about the document in 3 sentences:
The document discusses a study of the mineralogy and geochemistry of Maastrichtian shale samples from the Mamu Formation in the Anambra Basin of Nigeria. Various analytical techniques were used to characterize the shale samples and investigate paleo-redox conditions. The results suggest the shales were deposited under oxidizing conditions based on mineralogical and geochemical proxies, and were derived from felsic source rocks that experienced strong chemical weathering.
Eastern dharwar craton
This document summarizes information about the Eastern Dharwar Craton (EDC) region of India. The EDC covers around 450,000 square kilometers and contains several greenstone belts formed from volcanic and sedimentary rocks. It is bounded by mobile belts and separated from the Western Dharwar Craton by the Chitradurga Shear Zone. The EDC contains older gneissic basement rocks overlain by the Warangal Group and greenstone belts of the Dharwar Supergroup, along with the large Closepet Granite intrusion and regions metamorphosed to amphibolite and granulite facies.
Impact of Structural Lineaments on Mineralized Occurrences in North Abu Rushe...
This document discusses structural lineaments in the North Abu Rusheid-Sikait area of Egypt and their impact on mineral occurrences. It finds that lineaments are arranged in two main clusters trending N-S and NW-SE/WNW-ESE, controlling emplacement of granitic intrusions. A mylonitic shear zone trending ENE-WSW separates granites from ophiolitic mélange and hosts evidence of hydrothermal activity and secondary uranium mineralization. Most mineralization is related to extensional events creating space for mineral entrapment along shear zones like the ENE-WSW zone containing fluorite, molybdenite, and others.
A Comparison of Structural Styles and Prospectivity along the Atlantic Margin...
1) The structural style of the Atlantic margin offshore West Africa shows differences between the passive rifted Northwest African Atlantic Margin (NWAAM) and the West African Transform Margin (WATM).
2) The WATM is characterized by basins between transform faults containing large Upper Cretaceous turbidite systems with proven oil discoveries, while the NWAAM contains multiple petroleum systems trapped against salt structures, in carbonate reefs, and in syn-rift structures.
3) Both regions remain largely untested, particularly the NWAAM in deepwater, and further exploration has potential to make new hydrocarbon discoveries.
Field report of Haxara-Abbottabad area
This document provides an overview of a geological field work trip to the Hazara area of northern Pakistan led by Dr. Azmat khan. It discusses the stratigraphy and regional tectonics observed. The key points are:
1) The trip involved studying the stratigraphy of the Hazara arc and surrounding areas over 3 days, making stops to examine formations from the Precambrian to Miocene ages.
2) The Hazara arc forms the western border of the Hazara-Kashmir syntaxes and is bounded by thrust faults. It has undergone folding and faulting due to the collision of the Indian and Eurasian plates.
3) The stratigraphy includes metamorphic and sedimentary
Field report Gilgit Baltistan by Samiullah
This document provides a geological field report from a student's field trip through northern Pakistan. The student visited areas from Muslimabad to Hunza over 6 days, observing and documenting different rock types. Key stops included Besham, Kohistan, Gilgit, and Hunza. Rocks observed included basalts, andesites, metasedimentary rocks, diorites, dunites, gabbro, basalt, gabbro norites and pyroxenites. The report includes an introduction, literature review on the geology of the areas visited, and detailed documentation of stops made each day, including observations of rock types and structures.
Wilson200722222222222
This document summarizes active continental margins, where a continental plate overrides an oceanic plate being subducted. It focuses on the Andes as the archetypal example, describing three volcanic zones (northern, central, southern). The central zone contains thicker Precambrian crust and produces more silica-rich magmas compared to island arcs. Active volcanism occurs where subduction is steep (~30°) but not where aseismic ridges cause shallow subduction (<10°). Magmas result from mantle and crustal melting, interacting with continental crust, giving them distinct geochemical signatures. Large batholith belts were emplaced during periods of uplift and erosion when subduction shallows.
TECTONIC FRAMEWORK OF EAST GABAL NUQRA AREA, SOUTH EASTERN DESERT, EGYPT
The document describes a ring dyke complex located east of Gabal Nuqra in Egypt. Three magmatic events formed the rocks in the area: 1) Granites associated with the Nubian sandstone basin formation. 2) Volcanic ring dykes post-dating the basin. 3) A trachy-basaltic flow related to Red Sea rifting. Structural analysis identified three tectonic events: 1) NE-SW extension formed the Nubian basin. 2) NW-SE extension reactivated pre-existing faults. 3) E-W to ENE-WSW faults localized ring dyke emplacement and configured the trachy-basaltic flow. Hydrothermal activity
basin stratigraphic analysis of Tanga,Ruvu and mandawa basin in Tanzania
lithostratigraphic, biostratigraphic, chronostratigraphic analysis of Tanga,Ruvu and Mandawa basin in tanzania
permian-ultrafelsic-a-type-granite-from-besar-islands-group-johor-peninsular-...
permian-ultrafelsic-a-type-granite-from-besar-islands-group-johor-peninsular-...WAN NUR ATIQAH WAN ISMAIL
This document describes an ultrafelsic A-type granite from the Besar Islands group off the southeast coast of peninsular Malaysia. The granite occurs as a pluton sized body intruding metasedimentary rocks on three islands - Besar, Tengah, and Hujung. It is highly felsic with an average SiO2 content of 76.5% and contains over 70% K-feldspar and quartz. Textural and mineralogical analysis indicates the granite formed at high temperatures through partial melting of a felsic infracrustal source. Regionally, the granite body provides evidence for extensional tectonism in the Indo-China terrane during theWhat's hot (20)
Granomeric Analysis of Mamu Formation and Enugu Shale around Ozalla and Its E...
Granomeric Analysis of Mamu Formation and Enugu Shale around Ozalla and Its E...
A research on resistivity measurements on wadi el nakhel
A research on resistivity measurements on wadi el nakhel
Petrography of ajali sandstone in ayogwiri – fugar – orame area of western an...
Petrography of ajali sandstone in ayogwiri – fugar – orame area of western an...
Keys to paleogeographical interpretation of the enugu and the mamu formations...
Keys to paleogeographical interpretation of the enugu and the mamu formations...
Lithofacies Analysis and Petroleum Potentials of Parts of Ikom-Mamfe Embaymen...
Lithofacies Analysis and Petroleum Potentials of Parts of Ikom-Mamfe Embaymen...
Mineralogy and geochemical appraisal of paleo redox indicators in maastrichti...
Mineralogy and geochemical appraisal of paleo redox indicators in maastrichti...
Impact of Structural Lineaments on Mineralized Occurrences in North Abu Rushe...
Impact of Structural Lineaments on Mineralized Occurrences in North Abu Rushe...
A Comparison of Structural Styles and Prospectivity along the Atlantic Margin...
A Comparison of Structural Styles and Prospectivity along the Atlantic Margin...
TECTONIC FRAMEWORK OF EAST GABAL NUQRA AREA, SOUTH EASTERN DESERT, EGYPT
TECTONIC FRAMEWORK OF EAST GABAL NUQRA AREA, SOUTH EASTERN DESERT, EGYPT
basin stratigraphic analysis of Tanga,Ruvu and mandawa basin in Tanzania
basin stratigraphic analysis of Tanga,Ruvu and mandawa basin in Tanzania
permian-ultrafelsic-a-type-granite-from-besar-islands-group-johor-peninsular-...
permian-ultrafelsic-a-type-granite-from-besar-islands-group-johor-peninsular-...
Viewers also liked
Rocks of Singapore (2013)
This geological map of Singapore from 2009 shows pyroclasts bearing basaltic andesite. Measurements of a particular plane indicate a strike of 87.7 degrees, a dip of 32.5 degrees, and a pole trend of 357.7 degrees with a plunge of 57 degrees. The document also includes a quote by H. H. Read from 1940 stating that the best geologist is one who has seen the most rocks.
Outcrops of SG_KK & KL_August 2016_Final_20.09.16
This compilation was aimed to record for rare geological outcrops which were gradually diminished by infrastructural and construction projects.
Sharing information among fellow geologists working in Singapore and abroad.
Role of Geologists in Natural Hazard Mapping and Application_Dr Kyi Khin_MGSS...
Natural hazards like earthquakes, tsunamis, landslides, volcanoes and floods threaten lives and cause billions in damage every year. Geoscientists are working to better monitor and research these hazards so policymakers and the public have information to improve preparedness, response and resilience. Hazard maps that identify risks from multiple geological threats are important tools for planning, development and raising awareness. Such maps integrate data on geology, terrain and historical hazard events. They indicate hazard locations, likelihoods and impacts in a clear format to guide various stakeholders and authorities. Developing accurate hazard maps requires collecting and combining relevant data from different sources and disciplines to assess risks from natural phenomena.
Hist Petr Expl U of Myanmar_SEAPEXhouston23Jun2016pptx
This document provides a summary of the regional tectonics, structure, and history of petroleum exploration in Myanmar from 905 AD to present. It discusses the major basins in Myanmar including the Central Burma Basin where hand-dug wells have been extracting oil since 905 AD. The Central Burma Basin contains multiple anticlinal oil fields along with the prolific Mann Field discovered seismically. Exploration has occurred across multiple basins with varied success, identifying potential remaining exploration opportunities while also noting challenges around tight reservoirs and charge limitations.
GEOTECHNICAL INVESTIGATIONS
This document summarizes geological investigations for engineering projects and disaster prevention in Japan. It describes various surface and subsurface investigation techniques used to characterize soil and rock conditions, including mapping, drilling, testing, and laboratory analysis. Examples of natural hazards like earthquakes, landslides, and floods are presented, along with case studies of slope failures in cuts and fills. The importance of geological mapping, stratigraphy, and regional hazard assessments are emphasized for understanding site conditions and designing safe structures.
Myanmar Oil & Gas Enterprise (MOGE)
The document provides information on Myanmar's oil and gas exploration program and key projects. It outlines MOGE's goals to explore and produce oil and gas onshore for self-sufficiency and oversee production sharing contracts offshore. It lists Myanmar's major onshore and offshore oil and gas fields and concessions. It provides details on the Yadana and Yetagun offshore gas projects including reserves, sellers, buyers, facilities, and export details. It also discusses recent gas discoveries in Blocks A-1, A-3, M-9 including the Zawtika and Shwe Pyi Htay fields and potential utilization options for the discovered gas.
スタートアップ組織づくりの具体策を学ぶ 先生：金子 陽三
ーーーーーーーーーーーーーーーーーーーーーーー
schoo WEB-campusは「WEBに誕生した、学校の新しいカタチ」。
ＷＥＢ生放送の授業を無料で配信しています。
▼こちらから授業に参加すると、先生への質問や、ユーザーとのチャット、資料の拡大表示等が可能です。
https://schoo.jp/class/266/room
ーーーーーーーーーーーーーーーーーーーーーーー
Viewers also liked (7)
Role of Geologists in Natural Hazard Mapping and Application_Dr Kyi Khin_MGSS...
Role of Geologists in Natural Hazard Mapping and Application_Dr Kyi Khin_MGSS...
Hist Petr Expl U of Myanmar_SEAPEXhouston23Jun2016pptx
Hist Petr Expl U of Myanmar_SEAPEXhouston23Jun2016pptx
Similar to OIL SEEPAGES TRAPPED IN MIOCENE FORCED REGRESSIVE SILICICLASTIC
Sedimentary Facies And Petroleum System Of San Sai Oil Field, Fang Basin
Sedimentary Facies And Petroleum System Of San Sai Oil Field, Fang BasinInternational journal of scientific and technical research in engineering (IJSTRE)
The San Sai oil field is an important oil field in the Fang Basin. The sedimentary facies and basin
evolution have been interpreted using well data incorporated with 2D seismic profiles. The study indicates that
the Fang Basin was subsided as a half-graben in the Late Eocene by regional plate tectonism. The deposit is
thicker westward toward the major fault. The sedimentary sequence of the Fang Basin can be subdivided into
two formations which comprise five associated depositional environments. The results of total organic carbon
content (TOC), vitrinnite reflectance (%Ro), Rock-Eval pyrolysis and headspace gas analyses and the study of
basin modeling using PetroMod1D software are compiled and interpreted. They indicate that source rocks of
kerogen type II and III with 1.78 – 3.13%wt. TOC were mature and generated mainly oil at 5,600 – 6,700 feet
deep (Middle Mae Sod Formation). Source rocks of kerogen type II and III with 2.07 – 39.07%wt. TOC
locating deeper than 6,700 feet (Lower Mae Sod Formation) were mature to late mature and generated mainly
gas at this level. According to TTI (Time Temperature Index) modeling using PetroMod11.1D software,
hydrocarbon generation took place in the Middle Miocene and the generated oil and gas migrated through
fractures and faults to accumulate in traps at 2,900-4,000 feet deep (Upper Mae Sod Formation).Geological and Stratigraphic Modeling Of Pasni West Block, Makran Pakistan
This document provides an overview of the geological and stratigraphic modeling of the Pasni West Block in Makran, Pakistan. It describes the topography of the region which is affected by tectonic activity from the subduction of the Arabian plate. The stratigraphy of the area consists of sedimentary rock formations from the Oligocene to Pleistocene periods with a total thickness of around 7,000 meters. Previous studies have identified source rock, reservoir, and seal formations within the Miocene units with potential for hydrocarbon accumulation. Geophysical surveys, including marine seismic acquisition, have been used to image the subsurface geology of the region.
Tectonic Framework Tectonic Framework of Bengal Basin.pptx
The document summarizes the major tectonic units and structural features of the Bengal Basin. It describes three main units: 1) the stable platform in the west-northwest, 2) the geosynclinal basin in the east-northeast, and 3) the hinge zone that separates the two. Within these units it outlines several structural provinces including the Rangpur saddle, stable shelf, hinge zone, Bengal Foredeep, and Chittagong-Tripura Fold Belt. It provides details on the structural characteristics and geological history of these various zones that make up the complex tectonic framework of the Bengal Basin.
Tectonics of pakistan
The document summarizes the tectonics of Pakistan in 5 sections:
1) Northern Collision Belt - Result of collision between Eurasian and Indian plates forming the Himalayas.
2) Subduction Complex Association of Balochistan - Subduction zone where Arabian plate subducts, including the Chagai volcanic arc and Makran margin.
3) Chaman Transform Zone - Strike-slip fault zone connecting the Makran subduction zone and Himalayan collision zone.
4) Zone of Ophiolites - Oceanic rocks obducted onto the Indian plate margin, such as at Zhob, Waziristan, and Bela.
5) Platform Areas -
Geodynamic Evolution of Himalayas.pptx
This document provides an overview of the geodynamic evolution of the Himalayas. It discusses key events and processes, including:
1) The collision of the Indian plate with Eurasia 50-55 million years ago, forming the suture zone between the two plates.
2) The bending and bulging of the leading edge of the Indian plate as it plunged under Eurasia, forming dome structures. Metamorphism occurred along the suture zone.
3) The breaking of the Himalayan crust along the Main Central Thrust fault around 21 million years ago, uplifting the Great Himalayan terrain over the Lesser Himalayan terrain.
Tectonic settings of pakistan (1)
The document summarizes the tectonics of Pakistan. It discusses that Pakistan lies at the intersection of three tectonic plates and is seismically active. It describes the major tectonic segments of Pakistan as the:
1) Chaman Transform Zone
2) Northern Collision Belt
3) Platform Areas
4) Subduction Complex Association of Balochistan
5) Ophiolites and Ophiolite Mélanges
It provides details on the structures, features, and rock sequences that characterize each of these tectonic segments.
Arakan coastal ranges, kyi khin & and khin zaw, 2017.pptx
This document summarizes a study on the Neogene siliciclastic sequences in the Arakan Coastal Ranges of western Myanmar. Through detailed outcrop mapping, facies analysis, and provenance studies, the authors aimed to better understand basin evolution and provide insights into the tectonic evolution of the Himalaya-Bengal system. Key findings include identification of submarine slope deposits and evidence for episodic uplift of the Himalayas recorded in the sedimentary sequences. Provenance data found indications of increasing erosion of the Himalayas over time. The basin evolution appears to have been controlled by subsidence over the continent-ocean boundary and oblique convergence, with sediment influx influenced by Himalayan
SOFTY SEMINAR PRESENTATION-1-1-1.pptx
This document provides an outline and introduction for a seminar presentation on the hydrocarbon prospectivity of Cretaceous basins in Eastern and Southern Africa. The presentation will discuss the geological settings, Cretaceous basins, source rocks, structures, reservoirs, distribution of oil and gas, depositional histories, and comparisons of basins in Eastern and Southern Africa. It will conclude that while Eastern Africa's sedimentary cover is not thick enough everywhere to generate hydrocarbons, Southern Africa's basins have greater potential due to a complex tectonic history and the Orange Basin in particular has huge potential for large oil and gas discoveries.
C 66 Report
This document provides information on Prospecting License C-66 located in northwest Guyana. The license area shows potential for gold mineralization. Historical mining in the area has recovered gold from alluvial deposits and quartz veins. Geological mapping indicates the license area contains metasediments and metavolcanics from the Lower Proterozoic Mazaruni Supergroup intruded by younger granites. Limited geochemical sampling within the license area has identified one anomalous area with gold values between 25-38 ppb. The regional geology and structures controlling gold mineralization in the area are not well defined due to thick tropical weathering and limited exposure and data.
Myanmar Gold Geology Report Collection by Myo Aung Ex-Exploration Geologist
Myanmar known until recently as Burma, is slowly but steadily starting to attract foreign investment, driven mainly by international resource firms eager to tap into the mineral-rich South East Asia's country. After more than half a century of military ruling, Burma has started benefitting from the recent suspension of sanctions by Canada, the United States and the European Union. Myanmar's gold production is increasing and could prove a key factor for the country's economic growth, but many gold miners are suffering from lung diseases due to inadequate equipment and antiquated practices. In mineral-rich areas of Kachin State, taxes from Burmese and Chinese gold mining provides an important income stream to the Kachin Independence Organization. However, these mining companies use mercury in an environmentally hazardous extraction process, which can lead to long-lasting damage for the area's forests and river ways.
Phanerozoic Stratigraphy of India
The document discusses the Phanerozoic stratigraphy of sedimentary basins in India. It describes several types of basins that developed through the Phanerozoic due to tectonic evolution, including intra-cratonic rift basins, rift-passive margin basins, foreland and foredeep basins, subduction-related/accretionary basins, and collisional basins. Specific examples of each type are provided, such as the Gondwana basins, Kutch-Saurashtra basins, and Cambay basin for intra-cratonic rift basins. The development of sedimentary basins along India's east coast opening due to sea floor
C 67 Report
The document provides information on a Prospecting Licence area located in northwest Guyana. It summarizes the regional geology, which consists of Lower Proterozoic volcanic and sedimentary rocks overlain by flat-lying sedimentary rocks. Gold mineralization in the area is found in quartz veins associated with shear zones and foliated rocks. Soil samples within the license area show two anomalous zones with gold values up to 619 and 212 ppb. Active small-scale gold mining occurs near the license area from quartz veins and saprolite.
Cratons of india
The document provides information on the major geological divisions or cratons of India. It discusses five main cratons - Dharwar, Bastar, Singhbhum, Bundelkhand, and Aravalli. For each craton, it provides details on their location, key rock units, structural features, and tectonic evolution. It also briefly summarizes the economic deposits found within the Aravalli craton, including lead-zinc, gypsum, marble, and others.
Cratons of india
The document summarizes the major cratons found in India, including the Dharwar, Bastar, Singhbhum, Bundelkhand, and Aravalli cratons. It describes the geographic distribution, rock types, ages, and tectonic evolution of each craton. Key events in the evolution of the Indian cratons included continental crust formation over 3 billion years ago, greenstone belt formation and granite intrusion between 2.8-2.5 billion years ago, and collision and deformation between 3-2 billion years ago.
C 68 Report
This document provides information on a Prospecting Licence (PL C-68) area located in northwestern Guyana. It summarizes the regional geology, consisting of Lower Proterozoic volcanic and sedimentary rocks overlain by flat-lying sediments. Gold mineralization in the area is found in quartz veins associated with shear zones and foliated sediments. Soil sampling on the PL found one anomalous area with gold values up to 212 ppb. The potential for gold in the area is considered good based on active alluvial and hard rock mining occurring nearby. The document provides location details, descriptions of historical mining, and includes several maps outlining the geology and geochemical sampling of the PL area.
Geology of cambay basin
The Cambay Basin is an intracratonic rift graben located in northwest India that began forming following the Deccan Traps volcanic event in the late Cretaceous. The basin is filled with up to 8km of Tertiary sedimentary rocks. Major source rocks include the thick Cambay Shale deposited in the early Eocene during a transgression. Hydrocarbon reservoirs are found in the Olpad Formation, Hazad delta sands, and Miocene formations. Multiple petroleum plays exist, including those in the Paleocene-early Eocene, middle Eocene, and late Eocene-Oligocene sequences. The Cambay Shale is a prolific source of oil and gas in the
Permian to quaternary magmatism beneath the mt carmel area, israel
This document summarizes research on zircon samples from volcanic rocks and associated sediments in the Mt. Carmel area of Israel. Zircons reveal two major periods of mafic magmatism: Permo-Triassic (285-220 Ma) and Jurassic (200-160 Ma). Younger zircons are Cretaceous (118-80 Ma) and younger, derived from Miocene-Pliocene volcanism. Permo-Triassic-Jurassic zircons crystallized from late magma differentiation near the crust-mantle boundary and were reworked by younger fluids. The zircon data support a model of intermittent melting of a fossil Neoproterozoic plume head beneath
The Makran subduction zone.
The Makran coast is located along an active boundary lying in the offshore region where Arabian plate is being actively subducted northwards beneath Afghan and blocks. The active margin of Makran Coast remained a site of earthquakes throughout the historical and modern times. This scenario warrants a seismotectonic analysis of the Makran coastal areas to asses risk factors both for human settlements as well as important civil structures. The reconnaissance seismotectonic studies along the Makran coast resulted in the identification of a number of seismites ofHolocene times associated with capable faults. The instrumental and historicseismicity catalogue reveals that the Makran coast active margin is marked by low seismicity presently clustered in the south ofPasni. The infrequent large events occurred all along the Makran coast. The event of 1945 (magnitude 8. I) with shallow depth of 25 km located near Pasni caused ground ruptures, modification of landscape, rock falls, liquefactions,Fre and 5 to 10 m high tsunami.
Introduction to salt range
Introduction to salt range. Brief intro to salt range..
geology department university of peshawar
~Muhammad suliman
Michaelsen_final
This document summarizes a study of Late Permian coal formation along the shores of the Mongol-Transbaikalian seaway in central Mongolia. The study area contained a approximately 420m thick coal-bearing succession that developed during frequent sea level changes along the relatively shallow boreal seaway. Eight transgressive-regressive cycles were recognized, representing 405ky Milankovitch eccentricity cycles. Paleoclimatic indicators suggest the coals formed under boreal conditions when the seaway was likely frozen in winter and moist air currents prevailed in summer, benefiting peat-forming plants. The consistently high mineral content of the coals may be linked to their proximity to the shoreline and a high
Similar to OIL SEEPAGES TRAPPED IN MIOCENE FORCED REGRESSIVE SILICICLASTIC (20)
Sedimentary Facies And Petroleum System Of San Sai Oil Field, Fang Basin
Sedimentary Facies And Petroleum System Of San Sai Oil Field, Fang Basin
Geological and Stratigraphic Modeling Of Pasni West Block, Makran Pakistan
Geological and Stratigraphic Modeling Of Pasni West Block, Makran Pakistan
Tectonic Framework Tectonic Framework of Bengal Basin.pptx
Tectonic Framework Tectonic Framework of Bengal Basin.pptx
Arakan coastal ranges, kyi khin & and khin zaw, 2017.pptx
Arakan coastal ranges, kyi khin & and khin zaw, 2017.pptx
Myanmar Gold Geology Report Collection by Myo Aung Ex-Exploration Geologist
Myanmar Gold Geology Report Collection by Myo Aung Ex-Exploration Geologist
Permian to quaternary magmatism beneath the mt carmel area, israel
Permian to quaternary magmatism beneath the mt carmel area, israel
More from KYI KHIN
Some Microscopic features of Volcaniclastic Rocks in Jurong Formation, Singapore
This document summarizes microscopic features observed in samples from the Jurong Formation in Singapore. It describes volcanic rocks found such as welded tuff which displays rheomorphic structures from volcanic flows. Spherulites were also observed, which are rounded crystalline structures formed from devitrification of volcanic glass. Various tuffs were identified including welded spherulitic tuff and green lapilli tuff containing glass shards and clasts. Both welded and non-welded ignimbrites were observed with pyroclasts, lithics and crystals in their groundmass.
LANDSLIDES
This document discusses landslides, including their types, causes, investigation methods, and mitigation techniques. It begins by defining landslides and identifying their socioeconomic significance, such as increased risk due to urbanization and climate change. The main landslide types are described based on material and movement. Investigation methods are then outlined, including mapping, aerial photo interpretation, subsurface exploration, monitoring, and stability analysis. Finally, various mitigation techniques are presented, such as retaining walls, soil nails, drainage improvements, and slope reinforcement.
Understanding the sedimentary rocks - Geotalk 2 (MGSS)
Sedimentary rocks form from the compaction and cementation of sediments like sand and mud. This document discusses the formation of sedimentary rocks, including weathering, erosion, transportation, deposition, and diagenesis. It describes key sedimentary rock types like sandstone, shale, and conglomerate. Examples are given of each rock type and how to identify them based on composition, texture, and sedimentary structures. The study of sedimentary rocks provides information about geology, natural resources, and earth's history.
Core orientation in drilling of ROCKS for Site Investigation Works
This document discusses core orientation techniques for measuring structures in oriented drill core samples. It provides examples of qualitative examination needed to identify key structures before measurement. Details are given on recording gravitational roll or magnetic tool face readings for inclined or vertical drill holes. The process of aligning an orientation block, attaching it to the core, and using a survey camera to obtain orientation readings is described. Methods are outlined for drawing a reference line on the core and measuring alpha and beta angles to structures relative to this line. Finally, examples are given of logging formats and explanatory notes for recording discontinuity data from oriented drill core.
Arbura formation (forced regressive sequences) kyushu, japan 2005
This document describes sedimentary structures observed in outcrops of the Paleogene Arburasu Formation and Nichinan Formation in Miyazaki, Kyushu, Japan. It notes the presence of hummocky cross-stratification, swaley cross-stratification, climbing ripple cross-lamination, and debris flows. Trace fossils including Ophiomorpha nodosa, Planolites, Thalassinoides, and possibly Chondrites are also described. The document discusses the contact between these formations as a forced regressive sequence boundary between underlying thick marine mudstones and overlying thick shallow marine sandstones.
Presentation landslide (kyi khin et al , 2014)
This document summarizes three landslide case studies from Kyushu Island, Japan and discusses the role of geology in landslide investigation and mitigation. It provides examples of (1) the Umenoki landslide triggered by heavy rain, (2) the Nakatake Dam landslide caused by man-made activities, and (3) landslides in Miyazaki Prefecture caused by a typhoon. Geological mapping, borehole drilling, coring, and monitoring techniques like inclinometers and extensometers were used to investigate the landslides. The conclusion emphasizes the importance of understanding fractured and weathered rock layers, clay layers, and how rapid groundwater changes can cause landslides. Hazard maps were also discussed as
Field trip to Aso volcano, Kyushu, Japan
The document summarizes a field trip report on Aso Volcano in Kyushu, Japan. [1] A 90,000-year record of eruptions from Aso Volcano has been reconstructed from tephra layers, with 36 distinct silicic pumice-fall deposits providing key markers. [2] Post-caldera activity has produced over 100 cubic km of material at an average rate of 1.5 cubic km per 1000 years. [3] The largest eruption was 30,000 years ago and produced over 2 cubic km of material.
Technical report on landslided, kyushu, japan (2006) in japanese
The Japan Archipelago is a part of the Circum Pacific Orogenic Belt and is geologically very unstable. The bedrock materials which comprise the mountain terrain have been severely fractured since its formation and have developed numerous fault fracture zones. Furthermore, the islands are located within the monsoon zone and receive abundant rainfall. Coupled with early summer rainy spells and later typhoons, numerous landslides occur resulting in staggering damages.
The geological and geographical situations attribute important factors in Landslide Evolution and Landslide Topography. Among the slopes that have landslide topography, there are many Static Landslides (Old Landslides) with erosional features and dissected scarps caused many active landslides.
Main factors of the Landslide and slope failures triggered by Typhoon No. 14 are heavy rainfall (1,322mm) and geologic characteristics of the earth materials formed by highly deformed Pre-Tertiary sedimentary rocks overlain by Quaternary un-welded pyroclastic deposits, Old Alluvial deposits with debris flows units.
Major slope movements within these areas are represented by the failure of unwelded pyroclastic flow deposits and unconsolidated old alluvial deposits accompanied with intense rainfall. Furthermore, these failures involve not only the rapid slide with fall of the pyroclastic flow deposits, but also include the rapid slide of the tephra and thick older alluvial deposits underlain by the deformed bedrocks.
Most of these Large Scale Landslide features form by an aggregate of Smaller Landslide features and that movement could facilitate infiltration of groundwater into the head portion and the flank of landslide mass. Such conditions can cause localized instability and result in the formation of smaller landslides within the large landslide. Many of the currently existing active landslides represent reactivated portions of an old larger landslide masses in the Southern Kyushu regions.
Further, it has been speculated that the landslide topography and material compositions of earth materials could also be modified when changes in the ground water flow regime. Finally, we discussed the relationship between landslide topography, mode of movement and mitigation measures according to the characteristics of each slope failures.
More from KYI KHIN (10)
Bed Rock Slides in Shimanto Belt_Kyi Khin & Fukuda, 2001, 17th Applied geolog...
Bed Rock Slides in Shimanto Belt_Kyi Khin & Fukuda, 2001, 17th Applied geolog...
Some Microscopic features of Volcaniclastic Rocks in Jurong Formation, Singapore
Some Microscopic features of Volcaniclastic Rocks in Jurong Formation, Singapore
Understanding the sedimentary rocks - Geotalk 2 (MGSS)
Understanding the sedimentary rocks - Geotalk 2 (MGSS)
Core orientation in drilling of ROCKS for Site Investigation Works
Core orientation in drilling of ROCKS for Site Investigation Works
Arbura formation (forced regressive sequences) kyushu, japan 2005
Arbura formation (forced regressive sequences) kyushu, japan 2005
Technical report on landslided, kyushu, japan (2006) in japanese
Technical report on landslided, kyushu, japan (2006) in japanese
Recently uploaded
How to Add Chatter in the odoo 17 ERP Module
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
The Diamonds of 2023-2024 in the IGRA collection
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
How to Manage Your Lost Opportunities in Odoo 17 CRM
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
clinical examination of hip joint (1).pdf
described clinical examination all orthopeadic conditions .
Digital Artifact 1 - 10VCD Environments Unit
Digital Artifact 1 - 10VCD Environments Unit - NGV Pavilion Concept Design
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptxMohd Adib Abd Muin, Senior Lecturer at Universiti Utara Malaysia
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
How to Setup Warehouse & Location in Odoo 17 Inventory
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar KanvariaDRUGS AND ITS classification slide share
Any substance (other than food) that is used to prevent, diagnose, treat, or relieve symptoms of a
disease or abnormal condition
Advanced Java[Extra Concepts, Not Difficult].docx
This is part 2 of my Java Learning Journey. This contains Hashing, ArrayList, LinkedList, Date and Time Classes, Calendar Class and more.
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...National Information Standards Organization (NISO)
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.The simplified electron and muon model, Oscillating Spacetime: The Foundation...
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
PCOS corelations and management through Ayurveda.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
Recently uploaded (20)
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
OIL SEEPAGES TRAPPED IN MIOCENE FORCED REGRESSIVE SILICICLASTIC
- 1. OIL SEEPAGES TRAPPED IN MIOCENE FORCED REGRESSIVE SILICICLASTIC SEQUENCES BARONGA ISLANDS, YAKHINE, MYANMAR FIELD TRIPS BETWEEN 1994-1996 KYI KHIN Seminar, Department of Earth and Planetary Sciences, Kyushu University, Japan 18 March 1999
- 2. Location • Situated in the Western most part of Myanmar • E: Indo-Burma Ranges, W: Bay of Bengal, N: Chittagong Hills, S: Ramree and Cheduba offshore Islands
- 3. Regional Geological Map (Geological Map of Burma, 1977) NNW-SSE trending 3 long islands Area: (EW20× NS35 km) Longitude: 92˚45ʹ to 93˚15ʹE; Latitude: 19˚30ʹto 20˚10ʹN. Indo-Burman Ranges -elevated in Oligocene. Arakan Coastal Ranges and the Western Trough in the East of the Indo-Burman Ranges-formed on their flanks. The basement of the Indian Plate below the Indo- Burman Ranges is moving toward the North with respect to the rest of Asia. Miocene-Pliocene fold belt of western Indo-Burman Ranges-formed since late Miocene. Sittwe
- 4. NNW-SSE trending tight anticlines and broad synclines composed with Lower to Upper Miocene Sequences. The map pattern in this region has been compressed by strong East–West shortening during the Late Neogene. Oil seepage locations
- 5. Stratigraphy of Area Chaotic mud with overlying Shelf-sand body Homogenized mud sharp contacts with overlying Slumped thick chaotic mud LITHOLOGY & STRATIGRAPHY OF OIL SEEP LOCATIONS
- 6. Dislocated sandstone gutter-cast (gs) overlying the deformed mudstone (dm) Basal contact features of the amalgamated sandstone (FA-4). Irregularly stepped basal contact immediately underlying chaotic mud (FA-3). Middle Laung Fm. (ML2)
- 7. B Homogenized Mudstone (Hm) cut by slide scars and listric faults. Upper Laung Fm (ML3) FA-3 FA-2 FA-3 FA-4
- 8. Laung Fm. & Yezaw Fm. (upper Lower Miocene – lower Middle Miocene)
- 9. Yezaw Fm. (Middle Miocene)
- 11. This is opposite to the pattern normally seen in foreland basins, due to the continent– ocean boundary, presumably exacerbated by sedimentary loading and basinward downfaulting during Early Miocene to early Middle Miocene. Ch: Chittagaung Hills, Sch: Schuppen Belt, Ng: Naga Hills, As: Assam Basin, Ak: Arakan Basin Sediments-Accumulation Curves of Assam- Arakan-Bengal Basins TECTONICS and BASIN ANALYSIS
- 12. Domestic Oil wells of East and Middle Baronga Islands There are about 5-7 localities taking crude oil from old wells (60-200m depth) by manually. December 1998. East Baronga Island Middle Baronga Island
- 13. Domestic Oil wells Depth: 150-200m (East Baronga Island) Surface Geology: Black chaotic mudstone (Laung Fm.)
- 14. 1. Laung and Yezaw Formations were deposited in the deep marine Slope and Shelf environments between Early Miocene to Middle Miocene (about 21.5 Ma-11 Ma). 2. Mayu Formation was deposited in the southward prograded shelf-delta environment during Late Miocene to Pliocene. 3. Forced Regressive Wedged Systems Tracts (FRWST) which evolved slope by-passing, slumping and following deep- marine channel infilling began to accumulate the increased sediment load due to the rapid fall of base level presumably exacerbated by sedimentary loading and basinward downfaulting during Early Miocene to early Middle Miocene time. 4. Laung Formation and the lower Yezaw Formation demonstrate an overall up-section enrichment in feldspar, medium- to high-grade metamorphic lithic fragments whereas the conspicuous change in lithic type, such as chert and meta- sedimentary lithic fragments which increase more in the upper Yezaw Formation suggest low input from orogenic belts and high reworking from the older sedimentary deposits from Indo-Burman ranges. 5. Episodes based on the geochemical and provenance data proxy for the unroofing of Himalayas are related to the interactions between the timing of Himalayas thrusting, tectonic denudation and palaeoweathering, migration of foreland fluvial system and the rate of base-level changes in the Arakan Miocene Basin, Myanmar. 6. Oil seepage units are trapped in slumped mudstone capped by regressive Shelfal sandbodies and thick mud sequences below the FRST (Forced Regressive Systems Tracts) bounded by Parasequence bounaries. 7. These new information based on the sequence stratigraphy and provenance data indicate that sedimentary lithofacies filled in the asymmetric basin were controlled mainly by subsidence over the continent/ocean boundary, overprinted by tectonic loading and oblique convergence, and can be used for future oil and gas exploration in Myanmar. Thank You. Summary and Discussion