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.
A dissertation project in partial completion of Durham Universities Geology F600 Program with funding from Durham Universities Department of Earth Sciences. Fieldwork was carried out over a period of 6 weeks from the Oystercatcher House B&B, Raasay.
A dissertation project in partial completion of Durham Universities Geology F600 Program with funding from Durham Universities Department of Earth Sciences. Fieldwork was carried out over a period of 6 weeks from the Oystercatcher House B&B, Raasay.
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.
sedimentary basin may be defined as an area of depression in the earth’s crust in which sediments accumulate during a particular time span at a significantly greater rate, and so to a significantly greater thickness.
Geology of parts of Gboko and Makurdi Local Government Areas, Benue State, Ni...Premier Publishers
The study area lies within the middle Benue trough consisting of a sedimentary terrain, and igneous rocks at the northern part. The area has three drainage basins separated by a water divide that trends nearly north-south. The sedimentary terrain comprises mainly sandstone of Makurdi Sandstone with common fold axes trending Southwest-Northeast. It has grain size distribution and stratigraphic signatures suggestive of fluvial environment. The limestone unit is of a smaller area and circumscribed by the sandstone. Fossils identified in the limestone include mostly pelecypods, gastropods and ammoids. The limestone unit is a probable member of Eze-Aku shale. Evidence of igneous activity in the study area is the emplacement of extrusive and intrusive rocks. The extensive rock is porphyritic basalt, with olivine phenocrysts, augite and analcite. The mineral assemblage suggests that the basalt is of alkaline affinity. The intrusive rocks are dolerite and felsic dolerite, with predominance of lime-bearing plagioclase over all other minerals in the felsic dolerite.
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.
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.
sedimentary basin may be defined as an area of depression in the earth’s crust in which sediments accumulate during a particular time span at a significantly greater rate, and so to a significantly greater thickness.
Geology of parts of Gboko and Makurdi Local Government Areas, Benue State, Ni...Premier Publishers
The study area lies within the middle Benue trough consisting of a sedimentary terrain, and igneous rocks at the northern part. The area has three drainage basins separated by a water divide that trends nearly north-south. The sedimentary terrain comprises mainly sandstone of Makurdi Sandstone with common fold axes trending Southwest-Northeast. It has grain size distribution and stratigraphic signatures suggestive of fluvial environment. The limestone unit is of a smaller area and circumscribed by the sandstone. Fossils identified in the limestone include mostly pelecypods, gastropods and ammoids. The limestone unit is a probable member of Eze-Aku shale. Evidence of igneous activity in the study area is the emplacement of extrusive and intrusive rocks. The extensive rock is porphyritic basalt, with olivine phenocrysts, augite and analcite. The mineral assemblage suggests that the basalt is of alkaline affinity. The intrusive rocks are dolerite and felsic dolerite, with predominance of lime-bearing plagioclase over all other minerals in the felsic dolerite.
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.
Architectural color and light - Questions to ConsiderPaula McHugh
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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.
Preliminary Studies of the Litho-Structural Evolution of Areas Around Obudu N...IJRESJOURNAL
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.
Geological and Geochemical Characterization of the Neoproterozoic Derudieb Me...Premier Publishers
The meta- volcano - sedimentary sequences in the northern part of the Red Sea Hills comprise a sequence of metamorphosed rocks at low green schist facies of metamorphism consisting of lava flows, tuffs to breccias and agglomerates range in composition from basalts and andesites to rhyolites. Geologically the meta volcano sedimentary sequences is divided into metavolcanic rocks and metasediments. The metavolcanic rocks range in composition from mafic to felsic. The metasediments are represented by banded schist, quartzite and marble. The samples collected for study lie within the field of sub-alkaline rocks except one mafic volcanic sample, which plot near the boundary in the alkaline field and thus follow a transitional tholeiitic to calc-alkaline trend (increasing FeO* relative to MgO). The behavior of the large ion lithophile element (LILE) in the studied metavolcanics confirms the early fractionation of plagioclase. These rocks display negative Nb anomalies, suggesting that the melt source was modified by subduction-related fluids. Tectonically all felsic samples fall in the field of volcanic arc granitoids whereas the mafic units plot firmly within the plate margin field.
The Wadi Sikait Complex:
A Fertile- Post-Collisionl Granite-Pegmatite Suite, Eastern Desert, Egypt.
The Pan-African, Wadi Sikait Complex (WSC), in the south Eastern Desert of Egypt, is a late-tectonic, subsolvus strongly peraluminous, S-type, post-collisionl granite in the Sikait area that features an unambiguous genetic linkage with a proximal, zoned cluster of Be-, REE- and Nb-Ta bearing pegmatites (Abu Rusheid and Nugrus-Sikait area). The WSC is an arcuate belt of orthogneisses, migmatites and other high-grade metamorphic rocks, which mark the boundary between the central Eastern and the south Eastern Deserts of Egypt. The WSC consists of seven internal units (WSC-1 to -3 and PL-1 to -4) that range from chemically primitive biotite, garnet and sillimanite granites (WSC-1 and –2) to a highly evolved, tourmaline- and muscovite- bearing pegmatite granite facies (PL-1 to –4) locally containing endogenous emerald/beryl, molybdinite and cassiterite. Salient petrochemical attributes include A/CNK molar which varies from 1.15 to 1.75, a wide range of SiO2 (68.7-76.9%), high Al2O3 (14.1-16.0%), low CaO (<2.35%) and FeOt+MgO+TiO2 (0.36-6.62%), and with increasing fractionation, enrichment of Na2O, K2O, B, F, Be, Rb, Ga and Li, and depletion of Ba, Sr, Zr, REE and LREE. Strong fractionation is also revealed by Al/Ga (1370-6789), Ba/Rb (<0.01-12), Ca/Sr (21-201), K/Ba (19-9545), Mg/Li (4.26-1421), Na2O/K2O (0.21-34), (Ce/Yb)CN (0.89-83.25), and Eu/Eu* (<0.05-2.29). REE distribution patterns of rare-element pegmatites are lower in REE contents and flatter with prominent negative Eu anomaly than those of the related granites. The REE concentration and the (Ce/Yb)CN ratio decrease from the WSC-1 and -2 through PL-1 and -2 (fine-grained leucogranite) and PL-3 (pegmatitic leucogranite) to the PL-4 (potassic pegmatites).
Genesis of the strongly peraluminous, S-type granite and the associated rare-element pegmatite in the Sikait-Nugrus area is explained by a complex interplay of petrogenetic processes. Rare-elements and boron were previously concentrated in (wackes and mudstone) pelitic sediments deposited in large basins. These rocks underwent step-wise rock dehydration reactions involving muscovite and biotite, under fluid-absent conditions, and successively released these elements to anatectic melt. Rare-elements and volatiles were progressively concentrated via crystal-melt fractionation, the Harker trends of which were obscured by two stages of extraction of residual melt and by episodic, subsolidus redistribution via base-cation leaching. The late magmatic history of the WSC is marked by widespread exsolution of a volatile-rich phase, dispersion of a rare-element- F-B-Be-rich fluid along shear zones and ensuing emigration of rare-element-rich melt-fluid systems upward from the cupola, which led to the regionally zoned Sikait-Nugrus area
Provenance, tectonic setting and diagenesis of the Mn-Fe coated terrigenous c...iosrjce
The arkosic and subordinate quartz-arenitic Mn-Fe coated terrigenous clasts were discovered to
occur in association with manganese nodules hosted by weathered Mn-Fe rich alluvial-fluvial sediments of the
Tertiary period in Carletonville area. The weathered Mn-Fe rich alluvial-fluvial sediments form the modern soil
profiles in the study area. The Scanning Electron Microscope and petrographic studies of the terrigenous clasts
indicated elevated content of manganese oxide precipitated in pore spaces between the framework grains as
well as forming surface coatings on hand specimen. These clasts are mined with manganese nodules in the study
area. The manganese nodules were formed from in situ concentration of Mn-oxide due to surficial weathering of
the underlying Mn-rich dolomites of the Malmani Subgroup and then concentrated as Mn-rich residues,
encircling rock fragments in soil profile. In contrast, Mn-Fe coated terrigenous clasts and the alluvial-fluvial
sediments were sourced from older geological basins. Therefore, the purpose of the study were to construct a
possible source area of Mn-Fe coated clasts and Mn-rich alluvial-fluvial sediments which hosted Mn-nodules in
the mine area and from the results deduce the overall source of manganese that is mined in the area. On the
basis of framework compositional analysis, the sediments were found to have been sourced from metamorphic
and granitic origins in a cratonic interior to recycle orogen and sedimentation occurred in low plain,
temperate, humid to subhumid climate. The sediment sources resembled the properties of the Archean granites
and gneisses of the Witwatersrand Supergroup and Rand Anticline ridge (quartzite formation) exposed far off
along the northern part of the study area on a high topographic mountain.
Adjusting primitives for graph : SHORT REPORT / NOTESSubhajit Sahu
Graph algorithms, like PageRank Compressed Sparse Row (CSR) is an adjacency-list based graph representation that is
Multiply with different modes (map)
1. Performance of sequential execution based vs OpenMP based vector multiply.
2. Comparing various launch configs for CUDA based vector multiply.
Sum with different storage types (reduce)
1. Performance of vector element sum using float vs bfloat16 as the storage type.
Sum with different modes (reduce)
1. Performance of sequential execution based vs OpenMP based vector element sum.
2. Performance of memcpy vs in-place based CUDA based vector element sum.
3. Comparing various launch configs for CUDA based vector element sum (memcpy).
4. Comparing various launch configs for CUDA based vector element sum (in-place).
Sum with in-place strategies of CUDA mode (reduce)
1. Comparing various launch configs for CUDA based vector element sum (in-place).
Explore our comprehensive data analysis project presentation on predicting product ad campaign performance. Learn how data-driven insights can optimize your marketing strategies and enhance campaign effectiveness. Perfect for professionals and students looking to understand the power of data analysis in advertising. for more details visit: https://bostoninstituteofanalytics.org/data-science-and-artificial-intelligence/
Levelwise PageRank with Loop-Based Dead End Handling Strategy : SHORT REPORT ...Subhajit Sahu
Abstract — Levelwise PageRank is an alternative method of PageRank computation which decomposes the input graph into a directed acyclic block-graph of strongly connected components, and processes them in topological order, one level at a time. This enables calculation for ranks in a distributed fashion without per-iteration communication, unlike the standard method where all vertices are processed in each iteration. It however comes with a precondition of the absence of dead ends in the input graph. Here, the native non-distributed performance of Levelwise PageRank was compared against Monolithic PageRank on a CPU as well as a GPU. To ensure a fair comparison, Monolithic PageRank was also performed on a graph where vertices were split by components. Results indicate that Levelwise PageRank is about as fast as Monolithic PageRank on the CPU, but quite a bit slower on the GPU. Slowdown on the GPU is likely caused by a large submission of small workloads, and expected to be non-issue when the computation is performed on massive graphs.
As Europe's leading economic powerhouse and the fourth-largest hashtag#economy globally, Germany stands at the forefront of innovation and industrial might. Renowned for its precision engineering and high-tech sectors, Germany's economic structure is heavily supported by a robust service industry, accounting for approximately 68% of its GDP. This economic clout and strategic geopolitical stance position Germany as a focal point in the global cyber threat landscape.
In the face of escalating global tensions, particularly those emanating from geopolitical disputes with nations like hashtag#Russia and hashtag#China, hashtag#Germany has witnessed a significant uptick in targeted cyber operations. Our analysis indicates a marked increase in hashtag#cyberattack sophistication aimed at critical infrastructure and key industrial sectors. These attacks range from ransomware campaigns to hashtag#AdvancedPersistentThreats (hashtag#APTs), threatening national security and business integrity.
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Our comprehensive report delves into these challenges, using a blend of open-source and proprietary data collection techniques. By monitoring activity on critical networks and analyzing attack patterns, our team provides a detailed overview of the threats facing German entities.
This report aims to equip stakeholders across public and private sectors with the knowledge to enhance their defensive strategies, reduce exposure to cyber risks, and reinforce Germany's resilience against cyber threats.
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3. 3
Executive Summary
The Prospecting Licence (C-66) located in the Cuyuni Mining District No. 4 as shown on
Terra Surveys Topographic Map 18SW, as shown in fig 9 and enclosing an area of
approximately 5541 acres of the headwaters Ekabago River. The potential of the area
for gold is very good.
The PL is presently under mining license by C B & R Mining Enterprises. Active gold
extraction is presently undertaken by land dredging, using excavators on mining concesions
bordering this PL area.
The PL area is located in the upper drainage portion of the Ekabago River that drains in
the Puruni River,and close to the mouth of the Waikuri River that drains into the Cuyuni
River, approximately 150 km due west of the city of Georgetown .
Based on information from surface mapping in the areas of the soil geochemical anomalies
suggest the majority of the alluvial gold and gold anomaly areas are located to the
north/west of this PL, see fig 3. The PL area is likely to be related to zones of weakly
mineralized, structurally deformed, lithological contact between mafic and felsic volcanic or
intrusive rocks which interlayer with more extensive packages of sedimentary formations,
however because of limited data available for this PL,it is just an assumption. A portion
(perhaps the majority) of the gold mineralization may have been derived from quartz lode
type occurrences in lithologically controlled shear structures in the area.
The geology of the area consists of Lower Proterozoic Mazaruni Supergroup (greenstone
belts) consisting of meta-sediments and meta-volcanic rocks, intruded by Younger Granites.
Unconformably overlying these rocks is the Roraima Formation, a generally flat lying series
of conglomerates, sandstones, shales and with minor interbedded volcanics. All of these
rocks (greenstones, granites, and post-orogenic sedimentary series), are intruded by
doleritic and gabbroic dikes and sills (the Younger Basic Intrusive Suite), see fig 4-6.
4. 4
Location and Access
The PL area can be accessed by 4WD vehicle or Bedford truck via a logging and mining
road from Bartica, crossing the Mazaruni at Itaballi,from Itaballi the journey by truck/pick up
is approximately 5-6 hours to the PL.0.. . Bartica is accessed from Georgetown via speed
boat from Parika, or by road via the Georgetown-Linden Highway crossing the Essequibo
River at the Shirima crossing, see fig 1.
Geophysics
The first systematic geophysical survey in Guyana was an aeromagnetic survey flown by
Aero Services Corporation, funded by the United Nations in 1963. The survey used a set of
N-S flight lines at a spacing of approximately 1.6 to 2.4 km, and a height of 300m. In 1971-
72 additional areas in Guyana were flown by Terra Surveys, funded by the Canadian
Commonwealth Bureau, and older data was incorporated in a set of 1:200,000 scale maps.
These sheets were then re-issued with an interpretation by Tyl & Reford of Terra Surveys
Ltd in 1973. In 1994 aeromagnetic data covering Guyana was converted to digital form by
Gtech Ltd, a commercial group attached to the University of Leeds in the UK as part of the
“South American Magnetic Mapping Project” (SAMMP). A relief-shaded map compiled
recently (Heesterman 2004) from this data. It should be noted that this data has not been
reduced to the pole.
The aeromagnetic data shows distinct areas with magnetic highs, or abrupt magnetic
gradients,see fig 7. The Quartzstone mountains, which trend north-south, directly to the west
of the study locations (excluding Wiamu) show elevated geophysics results to the immediate
background geophysics. `
5. 5
Mineral Occurrences
Historical Data
Historically the plains underlain by granitic saprolite in the area has been a good source of
gold. However recent sampling from this area has not determined a significant source of
gold in the granitic saprolite, which is now exposed. It is therefore suggested that historical
extraction of gold has derived from alluvial material deposited on the bed rock which has
subsequently been removed and processed for gold. The alluvial material is most likely to be
derived from lode structures and schistose rocks observed and from the hill ranges. It is
therefore seen as an important exercise to study the hill range of the area for primary
mineralization.
The Quartzstone – Aremu Batholith which may be present within the PL area is associated
with extensive surface gold workings along the contact zone with the country rock. Gold
occurs in the contact zone, marginal granite and gold bearing quartz veins, which are
usually associated with shear zones in this area (Annual Report, 1964)
PL Mineralisation
From data on the mining activities bordering the PL, gold is found to be present in quartz
veins and quartz rich lodes and well foliated saprolitic schist which in general all strike north-
south throughout the area. The gold bearing quartz veins are usually associated with a black
mineral (tourmaline?). Active extraction of gold from saprolite and quartz material in areas
bordering the PL area is presently undertaken by small and medium scale miner. In some
areas saprolite and quartz is being crushed and washed. One notably anomalous area is
located within the PL area with an Au assay value 25-38 ppb,see fig 2,however it should be
noted that only approximately thirty five percent (35%) of the PL area have subjected to
geochemical sampling .
6. 6
Regional Geology
Two major lithological sequences, the Bartica Assemblage and the Barama – Mazaruni
Supergroup Greenstone sequences, underlie the northwestern area of Guyana.
Basement – the Kanuku complex is considered to be part of the Archean basement. It
consists of paragneisses and migmatites, granulites (Kanuku Mts.) and granite
gneisses.
Greenstones - The Barama and Mazaruni groups have been classically considered as
part of the Guiana Shield’s widespread Birrimian Age Greenstone Belts (2.2 G.a). The
Barama group outcrops in the northwestern region of Guyana, close to the border with
Venezuela. It consists of a predominantly sedimentary sequence with locally developed
Mn rich chert layers (Mathews Ridge deposit) interbeded with volcano sedimentary
packages. It is bounded to the west by the predominantly volcanic Mazaruni group (El
Callao in Venezuela stratigraphy). The contacts between The Mazaruni group, the
Barama Group and the gneissic basement sequences have not been well defined.
Generalized descriptions by Gibbs and Barron, made at Waikuri, suggest a typical
Archean greenstone sequence, with ultramafics rocks in the lower part, andesitic and
felsic volcanics in the central part and sediments in the upper part. All the above
sequences were deformed during the Trans Amazonian Event (2.1-1.9 Ga.).
Older Basic Rocks – this is a distinct group, also of Birrimian age, and is described as
intruding the Barama –Mazaruni greenstones. These are deformed and
metamorphosed to the same degree as the host sequences (Heesterman 2001).
The Bartica assemblage is a gneissic terrain, occurring in the Cuyuni River Region,
composed of various ortho / paragneisses with amphibolites, metamorphosed to the
amphibolite facies. Locally it reached the granulite facies. These rocks are believed
(Gibbs and Barron) to be reworked Barama-Mazaruni units during the Trans Amazonian
7. 7
event (1.95 to 2.2 Ga). Other authors believe the Bartica assemblage is another
basement portion of Archean age
Of similar age, but clearly late, are the so-called Younger Granites. These are generally
small individual intrusions forming large complexes of granitic terrain. Their composition
varies from granitic to dacitic. Gibbs and Barrow describe the Aurora Complex, as
composed of three rock types: tonalites, granodiorites and leucogranites. They are
unfoliated and display saussuritization (sericite + epidote), and sometimes are sheared
by later events.
The above rocks are intruded by sills and dikes and overlain by flat lying, undeformed
volcanics, probably, of the middle Proterozoic age. These could be related to the 1.8 Ga
Uatuma event, and correlate to the Kuyuwini volcanics, mapped originally in the
southern portion of Guyana.
C-66 Area Geology
Generally, the geology of this area is very similar to that seen in other parts of the
greenstone belts of Guyana, with the oldest rocks consisting of the Mazaruni Supergroup,as
shown in fig 4-6.
The local geology is presented in terms of the Landsat interpretation, geophysical features
and limited information from geological mapping in thick laterite terrain and scarce outcrop
exposure along grids lines and riverbeds. Given the scarcity of outcrops, information is more
often derived from mapping float and saprolite. Differential recessive weathering of soft
rocks and positive relief from more resistant (fresher) rock types can create the false
impression of an abundance of the latter units in the field. All sulphides at surface are readily
weathered, except where they are dispersed in competent metacherts or siliceous volcanic
rocks. This differential weathering feature in the presence of sulphides and/or alteration
zones and/or permeable structures, can however locally enhance exposure via the
development of deep erosional cuts at surface.
In several areas in Northern Brazil this is noticed and an interesting example is the
Amapari skarn deposit, located in Amapá state. In Guyana the mineralized zone is
8. 8
deeply weathered to as much as 140m while the adjacent rock units are generally only
weakly weathered and oxidized to depths of 20 to 60 meters.
Greenstone Belts: These areas was identified using Landsat interpretation, the
greenstone sequence is the predominant rock type, and is characterized by a weak, but
persistent, bedding or foliation generally trending NNW-SSE. Because of the weak
contrast in the Landsat imagery of the bedding/foliation, it was not possible to determine
the internal structure of the units or to separate it into predominantly volcanic or
sedimentary units. Only a few resistive ridges were clearly identified and interpreted to
consist of either massive volcanics, sandstones, chert or BIF.
Structure and relative age
A study of lineaments from stereoscopic examination of air photos was modified using
aeromagnetic and field data to identify major structures. Where all different data types
coincide, the probability that the structure is significant is higher. A similar process was used
to define major lithological boundaries.
Historically very few faults have been mapped in the field, mainly as softer faulted material
rarely survives as outcrop. Airphoto interpretation suggests that many linear features can be
traced between photographs over long distances. At least some of these must be faults with
significant movement, and others are first and second order fracture systems related to
primary movement. Some of the larger lineaments thought to be faults and fractures are
shown on Figures 8.
A number of main lineament directions can be recognised. Age relationships of some of
these can be interpreted from the way that they control the geology and mineralisation, but
in many cases these structures may be long lived, and have been re-activated several
times.
9. 9
Comments & Conclusions
Based on the limited for data for this concession, further exploration activity is warranted, in
order to develop into a mine, because areas bordering this PL have been some of the most
productive placer mining areas in the Cuyuni River District. The workings in the area are
located along the granite-greenstone contact of the Aremu batholith.
Therefore it is recommended that a program which consists of detail soil sampling and
geological mapping should be undertaken within the PL area to accurately define the
grade and type of mineralization. However from the sampling and study undertaken in
other areas bordering the PL it can be suggested that gold mineralization is hosted in
quartz veins and quartz rich lodes in this area. Therefore further work to better
understand the geology in this concession should be undertaken as there may be a
significant source of primary gold within the concession.
19. 19
REFERENCES :
Bishop DW. 1936. Quartzstone-Wiamu area. Cuyuni River. Preliminary report
Annual Report of Geological Services Department, British Guiana. 1964. Special
geological problems. Granite studies: Quartzstone – Aremu, Rupa, Kopang. 33-35
Learmont J W. 1954. Area vbetween Aremu and Quartzstone Rivers, Cuyuni Rivers.
Annual Report on the Geological Survey Department for the Year 1954 (British Guiana
Geological Survey). 42-43, 88-89
Lloyd JW. 1958, Area North-west of Quartzstone Landing, Cuyuni River. Annual Report
on the Geological Survey Department for the Year 1958 (British Guiana Geological
Survey). 42-43
Gibbs, A.K. and Barron, C.N. – 1993 – The Geology of the Guiana Shield. Oxford Univ.
Press.
Gibbs, A.K. – 1984 – Review of the geology and mineral deposits of the Guiana shield.
Report for Utah International Inc.
Goodwin, Alan M. – 2000 – Precambrian Geology of South American Platform.
Academic Press