Between a rock and a simulated space: Lava inundation probabilityJulie Herrick
"The combination of geologic field mapping and geospatial methods allowed us to demonstrate the probability of lava flow inundation for an important location on the N flank of Mauna Loa. We focused on the 2.5 x 5.5 km area from radial vents, rift zones, and the summit crater that encompasses the NOAA weather station (MLO). Field investigations conducted in 2005 determined that 30 unique geologic units cross this study area and originated from the summit, radial vents, and the NERZ. We combined two DEM-based simulation models to provide a detailed examination of lava flow paths with the purpose of developing a hazard assessment for the NOAA facility. Two GIS computer software programs (BASIN1 and VORIS) were used to analyze the digital terrain based on a 10 m DEM in order to outline possible inundation zones. The advantage of the BASIN1 results is that they provide clear delineations of the flow network. Subsequently, preliminary inundation zones were drawn based on model results. Additional information provided by VORIS defines the probability of each flow network branch being inundated. By overlapping the inundation zones with the map of inundation probability within a 50-year time interval, it is clear that the NOAA Facility should not be affected by lava flows originating from the NERZ. The main threats are from lavas originating from the western edge of Moku`aweoweo and the potential formation of radial vents."
Between a rock and a simulated space: Lava inundation probabilityJulie Herrick
"The combination of geologic field mapping and geospatial methods allowed us to demonstrate the probability of lava flow inundation for an important location on the N flank of Mauna Loa. We focused on the 2.5 x 5.5 km area from radial vents, rift zones, and the summit crater that encompasses the NOAA weather station (MLO). Field investigations conducted in 2005 determined that 30 unique geologic units cross this study area and originated from the summit, radial vents, and the NERZ. We combined two DEM-based simulation models to provide a detailed examination of lava flow paths with the purpose of developing a hazard assessment for the NOAA facility. Two GIS computer software programs (BASIN1 and VORIS) were used to analyze the digital terrain based on a 10 m DEM in order to outline possible inundation zones. The advantage of the BASIN1 results is that they provide clear delineations of the flow network. Subsequently, preliminary inundation zones were drawn based on model results. Additional information provided by VORIS defines the probability of each flow network branch being inundated. By overlapping the inundation zones with the map of inundation probability within a 50-year time interval, it is clear that the NOAA Facility should not be affected by lava flows originating from the NERZ. The main threats are from lavas originating from the western edge of Moku`aweoweo and the potential formation of radial vents."
A large impact crater beneath Hiawatha Glacier in northwest GreenlandSérgio Sacani
We report the discovery of a large impact crater beneath Hiawatha Glacier in northwest Greenland. From airborne radar surveys, we identify a 31-kilometer-wide, circular bedrock depression beneath up to a kilometer of ice. This depression has an elevated rim that cross-cuts tributary subglacial channels and a subdued central uplift that appears to be actively eroding. From ground investigations of the deglaciated foreland, we identify overprinted structures within Precambrian bedrock along the ice margin that strike tangent to the subglacial rim. Glaciofluvial sediment from the largest river draining the crater contains shocked quartz and other impact- related grains. Geochemical analysis of this sediment indicates that the impactor was a fractionated iron aster- oid, which must have been more than a kilometer wide to produce the identified crater. Radiostratigraphy of the ice in the crater shows that the Holocene ice is continuous and conformable, but all deeper and older ice appears to be debris rich or heavily disturbed. The age of this impact crater is presently unknown, but from our geological and geophysical evidence, we conclude that it is unlikely to predate the Pleistocene inception of the Greenland Ice Sheet.
Seismic Refraction Survey for Groundwater Potentials of Northern Paiko Area. ...iosrjce
This paper titled Seismic Refraction Survey for Groundwater Potentials of Southern Paiko Area.
Niger State, Nigeria, employs the service of seismic refraction survey method. A twelve-channel seistronix was
used for the data collection. The profiles were marked at 100 m intervals, while the profiles lines traversed
1000 m (1km). A Total of 44 spreads were shot. Data were collected, Time – distance (T-S) graphs were plotted
using matrix laboratory software, velocities of the underlying layers obtained and depths to the refractor layer
computed and geologic cross sections were obtained. The results obtained gave an overview of the lateral
variation in the lithological changes of the subsurface earth materials in the surveyed area. The basement
surface varied in depth, from 10.16 m to a maximum of 14.80 m. weathered layer velocities ranging from 809
m/s to 3612 m/s and consolidated layer velocities varying between 2858 m/s to 9696 m/s. Four shot points were
delineated as aquifer potentials of the area having depth to refractor varying between 13.70 m and 14.80 m with
overburden velocities ranging from 1940 m/s to 3462 m/s. The rock materials identified in the surveyed area are
chiefly sand, saturated clay, gravel, gneiss, igneous rock and granite.
TABLE OF CONTENT
>Introduction
>General Morphology of Subduction Zone
>Ocean Trenches
>Back Arc Basins
>Accretionary Prism
>Variation in Zones Characteristics
>Structure of Zones from Earthquakes
>Thermal Structure of Down-going Slab
>Gravity Anomalies
>Volcanic and Plutonic Activity
>Metamorphism at convergent boundaries
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Determination of Thickness of Aquifer with Vertical Electrical Sounding iosrjce
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of mechanical and civil engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in mechanical and civil engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
A large impact crater beneath Hiawatha Glacier in northwest GreenlandSérgio Sacani
We report the discovery of a large impact crater beneath Hiawatha Glacier in northwest Greenland. From airborne radar surveys, we identify a 31-kilometer-wide, circular bedrock depression beneath up to a kilometer of ice. This depression has an elevated rim that cross-cuts tributary subglacial channels and a subdued central uplift that appears to be actively eroding. From ground investigations of the deglaciated foreland, we identify overprinted structures within Precambrian bedrock along the ice margin that strike tangent to the subglacial rim. Glaciofluvial sediment from the largest river draining the crater contains shocked quartz and other impact- related grains. Geochemical analysis of this sediment indicates that the impactor was a fractionated iron aster- oid, which must have been more than a kilometer wide to produce the identified crater. Radiostratigraphy of the ice in the crater shows that the Holocene ice is continuous and conformable, but all deeper and older ice appears to be debris rich or heavily disturbed. The age of this impact crater is presently unknown, but from our geological and geophysical evidence, we conclude that it is unlikely to predate the Pleistocene inception of the Greenland Ice Sheet.
Seismic Refraction Survey for Groundwater Potentials of Northern Paiko Area. ...iosrjce
This paper titled Seismic Refraction Survey for Groundwater Potentials of Southern Paiko Area.
Niger State, Nigeria, employs the service of seismic refraction survey method. A twelve-channel seistronix was
used for the data collection. The profiles were marked at 100 m intervals, while the profiles lines traversed
1000 m (1km). A Total of 44 spreads were shot. Data were collected, Time – distance (T-S) graphs were plotted
using matrix laboratory software, velocities of the underlying layers obtained and depths to the refractor layer
computed and geologic cross sections were obtained. The results obtained gave an overview of the lateral
variation in the lithological changes of the subsurface earth materials in the surveyed area. The basement
surface varied in depth, from 10.16 m to a maximum of 14.80 m. weathered layer velocities ranging from 809
m/s to 3612 m/s and consolidated layer velocities varying between 2858 m/s to 9696 m/s. Four shot points were
delineated as aquifer potentials of the area having depth to refractor varying between 13.70 m and 14.80 m with
overburden velocities ranging from 1940 m/s to 3462 m/s. The rock materials identified in the surveyed area are
chiefly sand, saturated clay, gravel, gneiss, igneous rock and granite.
TABLE OF CONTENT
>Introduction
>General Morphology of Subduction Zone
>Ocean Trenches
>Back Arc Basins
>Accretionary Prism
>Variation in Zones Characteristics
>Structure of Zones from Earthquakes
>Thermal Structure of Down-going Slab
>Gravity Anomalies
>Volcanic and Plutonic Activity
>Metamorphism at convergent boundaries
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Determination of Thickness of Aquifer with Vertical Electrical Sounding iosrjce
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of mechanical and civil engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in mechanical and civil engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Ras Muhammad Marine National Park is located on faulted and uplifted Neogene blocks that are
partially covered by Quaternary limestones of predominantly coralgal facies. The physiography of the
reefal limestone cropping out in the area and also the present-day depositional environments are
tectonically controlled. Surface morphology observations show that earthquake pools that cut through the
uplifted Pleistocene reefs indicate continuing recent movements, as indicated by numerous records of
seismic activity in the study area. The morphostructural-generated depositional facies patterns on the
peninsula are a wide tidal belt with tidal shoals and coastal spits, barrier and fringing reefs, three
elongated embayments, Hiddan Bay, mangrove and tidal channels, Ras Muhammad pool and sabkha, and
earthquake pools (two earth fissures). The distribution of marine plants is described for each area. The
abundance of algae in Ras Muhammad appeared to be inversely related to the abundance of living corals.
A sequence of slides detailing a preliminary study for age dating (biostrat) the Enjefa Beach succession in Kuwait. The sedimentology of the cliff section is that of Dr Saifullah Khan Tanoli and acts as the framework. The description of the modern day Beach Rock is by S Crittenden
Hydrogeological Application of Refraction Seismicsiosrjce
IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT) multidisciplinary peer-reviewed Journal with reputable academics and experts as board member. IOSR-JESTFT is designed for the prompt publication of peer-reviewed articles in all areas of subject. The journal articles will be accessed freely online.
A REVIEW OF GROWTH FAULTS AND ROLLOVER ANTICLINES (A CASE STUDY OF NIGER DELTA) James Opemipo OLOMO
Growth faults and its associated rollover anticlines are generally syndepositional sedimentary structures that result from diastrophism which was contemporaneous with sedimentation. They are special structures which occur abundantly in the Niger Delta & constitute one of the most important hydrocarbon traps in the region .
Despite this abundance, their occurrence is however restricted to the extensional zone of the Niger delta. These structures can be identified from outcrops, seismic data , structure contour maps and well logs. While their propagation history can be constrained by the use of key kinematic tools, such as t-z, d-l and expansion index plots. Although, it has been identified that these structures are target structures in the accumulation of oil and gas, they can also be destructive, especially if they are reactivated after hydrocarbon accumulation.
Hence, it is important for the petroleum explorationist to identify, map their extent and constrain the propagation history of these structures, in order to minimise exploration risk.
International Refereed Journal of Engineering and Science (IRJES)irjes
The core of the vision IRJES is to disseminate new knowledge and technology for the benefit of all, ranging from academic research and professional communities to industry professionals in a range of topics in computer science and engineering. It also provides a place for high-caliber researchers, practitioners and PhD students to present ongoing research and development in these areas.
Gravimetri Dersi için aşağıda ki videoları izleyebilirsiniz.
Link 01: https://www.youtube.com/watch?v=HTyjVaVGx0k
Link 02: https://www.youtube.com/watch?v=fUkfgI8XaOE
Geopsy yaygın olarak kullanılan profesyonel bir program. Özellikle, profesyonel program deneyimi yeni mezunlarda çok aranan bir özellik. Bir öğrencim çalışmasında kullanmayı planlıyor.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
1. Solid Earth Geophysics Ali Oncel [email_address] Department of Earth Sciences KFUPM Today’s class: Oceanic Lithosphere Reading: Fowler Chapter 9 , pp.391-416
2.
3. Chapter Exam Next Tuesday Class Fowler Chapters 8 and 9 , pp.391-416 Assignment Prepare your questions for Chapter 9n and upload them to class page before the exam. April 21, 2007
4.
5. pp. 339 of Stein, 2003 modified after McClousky et al., 2000
6. Why does the Ocean Depth with lithospheric age deepens with distance from the spreading ridges? Recall
7. Depth for Ocean Age for Lithosphere If a body cools, what happens to its density?
8.
9.
10. MULTICHANNEL SEISMIC EQUIPMENT P.Farcy Farcy, B. , B. Marsset Marsset, H. , H. Nouze Nouze
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12. Ocean Bottom Seismograph http://www.geopro.com/obs.html The OBS is cased in a glass sphere which can be deployed up to water depths of 6700m, recording seismic signals directly on the seafloor with a gimbal mounted 3C-geophone and a deep sea hydrophone.
Stein, 2003., pp. 301. The concept that the lithosphere cools with time such that isotherms deepen with the square root of age has many observable consequences. The simplest is that ocean depth should vary with age, which make sense, because spreading centers are ridges precisely because the ocean deepens on either side. To model this effect, we consider the mass in two columns, one at the ridge and one at age t, and invoke the idea of isostasy, which means that the masses in two columns balance (Figi.5.3-6).
It contracts, so its volume decreases, resulting in an increase in density. The cooling and shrinking of the lithosphere result in an increase in its density and so, as a result of isostasy, it subsides into the asthenosphere and ocean depth increases away from the ridge, from about 2–3 km at oceanic ridges to about 5–6 km for abyssal plains. Indeed, one of the more remarkable observations of ocean-floor bathymetry is that ocean floor of similar age always occurs at similar depths beneath sea level (Figure 10). The relationship between mean oceanic depth ( d in metres) and lithosphere age ( t in Ma) can be expressed as: d = 2500 + 350 t ½ ( 1 ) If the depth of the ocean floor can be determined, then the approximate age of the volcanic rocks from which it formed may also be estimated, and vice versa.
The instrument has no connection to the sea surface and is recovered by acoustic or time release.
V (Sea)=1525 m/s V (Sediments)= 1800 m/s V (Metamorphic) =2500
Profiles Pr 1, Pr 2 and the northern part of Pr 4 cross the area of Crete (Bohnhoff et al., 2001), profiles Pr 3, southern part of Pr 4 and Pr 5 (Makris and Broenner, 2001; Broenner, 2003) cross the Mediterranean Ridge. Numerical values indicate the Vp velocities in kilometers per second.
Figure 2. DART tsunameters are now used in a few strategic locations in the deep ocean to measure tsunami waves unaltered by shoaling and refl ections at a coast. The tsunameters sense the pressure induced on the ocean bottom by passing tsunami waves, transmit these data by acoustic modem to an oceansurface buoy moored nearby, and from the buoy the data are sent via satellite to the warning centers.