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Rocks and deposits
Solid masses that make up the earth's crust as well as accumulations of materials. Use for major rock types and unconsolidated deposits. For deposits of economic value, see related terms.
Subtopics:
Fossils (14 items)
Igneous rocks (10 items)
Metamorphic rocks (2 items)
Permafrost (2 items)
Petroleum (79 items)
Sedimentary rocks (14 items)
Unconsolidated deposits (20 items)

Lithologic maps (20 items)
Related topics:


Results 1 - 143 of 167 listed by similarity [list alphabetically]
PDF Assessment of potential oil and gas resources in source rocks of the Alaska North Slope, 2012 [More info]
We estimated potential, technically recoverable oil and gas resources for source rocks of the Alaska North Slope. Estimates range from zero to 2 billion barrels of oil and from zero to nearly 80 trillion cubic feet of natural gas.
Fossils, rocks, and time [More info]
Booklet describes how paleontologists use the identification of fossils to recognize rocks of the same or different ages.
Geology, geochemistry and geophysics of sedimentary rock-hosted gold deposits in China [More info]
Second report of a joint project with the Tianjin Geological Academy to study sedimentary rock-hosted Au deposits in China.
How do geologists date rocks? Radiometric dating! [More info]
Explanation of how geologists date rocks (to determine the ages of the Earth, fossils, mineral deposits, and other geologic events) and processes using radiometric dating techniques based on radioactive isotopes of carbon and potassium/argon.
Spectroscopy of rocks and minerals, and principles of spectroscopy [More info]
Technical review of the principles of spectroscopy and its use in identifying minerals and other materials.
Bedrock and soil geochemistry from Voyageurs National Park, Minnesota [More info]
Maps and text (Word or PDF format) and database (Excel or HTML format) for bedrock, forest floor, and mineral soil sampling in Voyageurs National Park, Minnesota to establish the background and baseline geochemistry and terrestrial mercury sources.
Bedrock geologic map of Vermont [More info]
At a scale of 1:100,000, this map shows an uncommon level of detail for State geologic maps. Mapped rock units are primarily based on lithology, or rock type, to facilitate derivative studies in multiple disciplines.
Bedrock geology of the Yosemite Valley area Yosemite National Park, California [More info]
Site explains the general bedrock geology of the Yosemite Valley area.
Database of recent tsunami deposits [More info]
Sedimentary characteristics of 228 tsunami deposits, drawn from published accounts, for interpreting prehistorical, historical, and modern tsunami deposits, and for the development of criteria to identify tsunami deposits in the geologic record.
Geochemical and mineral maps from soils of the conterminous United States [More info]
Geochemical and mineralogical maps along with a histogram, boxplot, and empirical cumulative distribution function plot for each element or mineral whose data are provided in DS-801
PDF Identification of tsunami deposits in the geologic record; developing criteria using recent tsunami deposits [More info]
Characteristics of recent tsunami deposits, with the knowledge we have about the events that caused them, give us ways to recognize ancient deposits of this type and infer characteristics of those ancient tsunamis as well.
Organic metamorphism in the California petroleum basins: Chapter A - ROCK-EVAL and vitrinite reflectance [More info]
Part A of a complex report on the results of ROCK-EVAL and vitrinite reflectance analysis of a large sample base from more than 70 wells located in three oil-rich California petroleum basins in order to study the formation of oil deposits.
usSEABED (marine sediment and rock distribution) [More info]
Data on sediment and rock distributions in the waters off the United States, shown using an internet map service with links to downloadable data files
PDF 2010 updated assessment of undiscovered oil and gas resources of the National Petroleum Reserve in Alaska (NPRA) [More info]
We estimate mean volumes of 896 million barrels of oil and about 53 trillion cubic feet of nonassociated natural gas in conventional, undiscovered accumulations within this area, a reduction of our 2002 estimate due to new geologic information.
A Method for Qualitative Mapping of Thick Oil Spills Using Imaging Spectroscopy [More info]
A method to create qualitative images of thick oil in oil spills on water using near-infrared imaging spectroscopy data. It relies on the organic absorption features of chemical bonds in aliphatic hydrocarbons. The data cannot give oil volume estimates.
A promising tool for subsurface permafrost mapping-An application of airborne geophysics from the Yukon River Basin, Alaska [More info]
Airborne electromagnetic surveying is used to estimate the character of the permafrost by measuring and monitoring the electrical resistivity, which is affected by lithology, temperature, water, and ice.
A rapid method for creating qualitative images indicative of thick oil emulsion on the ocean's surface from imaging spectrometer data [More info]
Technical details explaining how remotely sensed visible and infrared data can help recognize the extent of oil spills.
America's volcanic past - volcanic highlights and features [More info]
Links to volcanism, volcanic history, volcanic rocks, and general geology by state, by region, national parks and national monuments and a brief introduction to volcanism around the U.S. entitled: Windows into the past.
PDF An estimate of undiscovered conventional oil and gas resources of the world, 2012 [More info]
Using a geology-based assessment methodology, we estimated means of 565 billion barrels of conventional oil and 5,606 trillion cubic feet of undiscovered conventional natural gas in 171 priority geologic provinces of the world, exclusive of the U.S.
An evaluation of the science needs to inform decisions on Outer Continental Shelf energy development in the Chukchi and Beaufort Seas, Alaska [More info]
We need refined regional understanding of climate change, effective oil-spill risk assessment, preparedness, and response, an analysis of cumulative effects (natural and human), better geospatial data for the area, in an integrated approach.
An interpretation of the 1977 Airborne Electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona [More info]
Complex report on the interpretation of aeromagnetic data to study hydrogeology of the San Pedro basin, Cochise County, Arizona determining geologic structure, basin fill and depth to water. Online version of a CD-ROM publication.
Aquifer basics [More info]
Links to general information on water supply by aquifers based on rock types and to principal national aquifers by name.
Asbestos: geology, mineralogy, mining, and uses [More info]
Report on asbestos, six types of mineral fibers belonging to two mineral groups, serpentines and amphiboles,with fiber morphology, crystal structure, analytical methods, properties, mining, milling, uses, and safety factors.(PDF file,28 pp.,4.5 MB)
PDF Assessment of coal geology, resources, and reserve base in the Powder River Basin, Wyoming and Montana [More info]
We estimated in-place resources of 1.07 trillion short tons of coal in this area using a geology-based assessment methodology. Of that total, recoverable coal was 162 billion tons, 25 billion economically recoverable.
PDF Assessment of Gas Hydrate Resources on the North Slope, Alaska, 2008 [More info]
We estimate that there are about 85 trillion cubic feet (TCF) of undiscovered, technically recoverable gas resources within gas hydrates in northern Alaska.
PDF Assessment of in-place oil shale resources of the Green River Formation, Greater Green River Basin in Wyoming, Colorado, and Utah [More info]
Using the Fischer assay measure of oil yield, we estimated a total of 1.44 trillion barrels of oil in three assessed units. There is currently no economic method to recover oil from this geologic unit.
PDF Assessment of potential additions to conventional oil and gas resources in discovered fields of the United States from reserve growth, 2012 [More info]
Estimates of additional energy resources present within known oil and gas fields using statistical analysis that includes geology and engineering practices in addition to growth trends in production data.
PDF Assessment of potential additions to conventional oil and gas resources of the world (outside the United States) from reserve growth, 2012 [More info]
We used mathematical models to estimate the likely increases in the estimates of the amount of oil and gas technically recoverable from existing known large fields outside the US.
PDF Assessment of potential shale gas and shale oil resources of the Norte Basin, Uruguay, 2011 [More info]
We estimated mean volumes of 13.4 trillion cubic feet of potential technically recoverable shale gas and 0.5 billion barrels of technically recoverable shale oil resources in this area using a performance-based geologic assessment methodology.
PDF Assessment of potential shale gas resources of the Bombay, Cauvery, and Krishna-Godavari Provinces, India, 2011 [More info]
Using a performance-based geologic assessment methodology, we estimated a technically recoverable mean volume of 6.1 trillion cubic feet of potential shale gas in these areas.
PDF Assessment of potential shale oil and tight sandstone gas resources of the Assam, Bombay, Cauvery, and Krishna-Godavari Provinces, India, 2013 [More info]
Using a well performance-based geologic assessment methodology, we estimated a technically recoverable mean volume of 62 million barrels of oil in shale oil reservoirs, and more than 3,700 billion cubic feet of gas in tight sandstone in this area.
PDF Assessment of potential shale-oil and shale-gas resources in Silurian shales of Jordan, 2014 [More info]
We estimated means of 11 million barrels of potential shale-oil and 320 billion cubic feet of shale-gas resources in Silurian shales in this area using a geology-based assessment methodology.
PDF Assessment of potential unconventional Carboniferous-Permian gas resources of the Liaohe Basin eastern uplift, Liaoning Province, China, 2011 [More info]
We estimated a mean of 448 billion cubic feet of potential technically recoverable unconventional natural gas in this area.
PDF Assessment of potential unconventional lacustrine shale-oil and shale-gas resources, Phitsanulok Basin, Thailand, 2014 [More info]
We estimated potential technically recoverable mean resources of 53 million barrels of shale oil and 320 billion cubic feet of shale gas in this area using a geology-based assessment methodology.
PDF Assessment of remaining recoverable oil in selected major oil fields of the Permian Basin, Texas and New Mexico [More info]
The mean total volume of potential additional oil resources that might be added using improved oil-recovery technologies was estimated to be about 2.7 billion barrels of oil.
PDF Assessment of remaining recoverable oil in selected major oil fields of the San Joaquin Basin, California [More info]
The mean total volume of potential oil reserves that might be added in the nine fields using improved oil-recovery technologies was estimated to be about 6.5 billion barrels of oil.
PDF Assessment of unconventional oil and gas resources in Northeast Mexico, 2014 [More info]
We estimated means of 0.78 billion barrels of unconventional oil, 23.5 trillion cubic feet of unconventional gas, and 0.88 billion barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Biogenic Gas Resources, North-Central Montana Province [More info]
We estimated 6,192 billion cubic feet of shallow biogenic (continuous) undiscovered gas in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered conventional oil and gas resources of Bonaparte Basin, Browse Basin, Northwest Shelf, and Gippsland Basin Provinces, Australia, 2011 [More info]
We estimated means of 4.7 billion barrels of undiscovered oil and 227 trillion cubic feet of undiscovered natural gas in three major offshore petroleum basins using a geology-based assessment methodology.
PDF Assessment of undiscovered conventional oil and gas resources of North Africa, 2012 [More info]
We estimated means of 19 billion barrels of technically recoverable undiscovered conventional oil and 370 trillion cubic feet of undiscovered conventional natural gas resources in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered conventional oil and gas resources of six geologic provinces of China [More info]
We estimated mean volumes of undiscovered conventional resources in this area at 14.9 billion barrels of oil, 87.6 trillion cubic feet of natural gas, and 1.4 billion barrels of natural-gas liquids using a geology-based assessment methodology.
PDF Assessment of undiscovered conventional oil and gas resources of South America and the Caribbean, 2012 [More info]
We estimated means of 126 billion barrels of oil and 679 trillion cubic feet of undiscovered natural gas in 31 geologic provinces of South America and the Caribbean using a geology based assessment methodology.
PDF Assessment of undiscovered conventional oil and gas resources of the Arabian Peninsula and Zagros Fold Belt, 2012 [More info]
We estimated means of 86 billion barrels of oil and 336 trillion cubic feet of undiscovered natural gas resources in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered conventional oil and gas resources of the Western Canadian Sedimentary Basin, Canada, 2012 [More info]
We estimated undiscovered resources of 1,321 million barrels of oil, 25,386 billion cubic feet of gas, and 604 million barrels of natural gas liquids in this area using a geology based assessment methodology.
PDF Assessment of Undiscovered Hydrocarbon Resources of the Western Oregon and Washington Province [More info]
We estimated mean volumes of 2.2 trillion cubic feet (TCF) of undiscovered natural gas and 15 million barrels of oil (MMBO) in the using a geology-based assessment methodology.
PDF Assessment of Undiscovered Natural Gas Resources of the Sacramento Basin Province of California, 2006 [More info]
We estimated undiscovered, technically recoverable resources are 534 billion cubic feet of natural gas and 323 thousand barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources in conventional and continuous petroleum systems in the Upper Cretaceous Eagle Ford Group, U.S. Gulf Coast region, 2011 [More info]
We estimated the volume of oil, natural gas, and natural gas liquids in three closely related geologic units in this area using a geology based assessment methodology.
PDF Assessment of Undiscovered Oil and Gas Resources in Cretaceous-Tertiary Coal Beds of the Gulf Coast Region, 2007 [More info]
We estimated a mean of 4.06 trillion cubic feet of undiscovered, technically recoverable natural gas in these coal beds of the onshore lands and State waters of the Gulf Coast.
Assessment of undiscovered oil and gas resources in Jurassic and Cretaceous strata of the Gulf Coast, 2010 [More info]
We estimated means of 147.4 trillion cubic feet of undiscovered natural gas, 2.4 billion barrels of undiscovered oil, and 2.96 billion barrels of undiscovered natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Oil and Gas Resources in Tertiary Strata of the Gulf Coast, 2007 [More info]
We estimated mean undiscovered resources of 113.7 trillion cubic feet of natural gas, a mean of 690 million barrels of oil, and a mean of 3.7 billion barrels of natural gas liquids in onshore lands and state waters in this area.
Assessment of undiscovered oil and gas resources in the Paradox Basin Province, Utah, Colorado, New Mexico, and Arizona, 2011 [More info]
We estimated means of 560 million barrels of undiscovered oil, 12,701 billion cubic feet of undiscovered natural gas, and 490 million barrels of undiscovered natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of four East Africa Geologic Provinces [More info]
We estimated mean volumes of 27.6 billion barrels of oil, 441.1 trillion cubic feet of natural gas, and 13.77 billion barrels of natural gas liquids in these areas using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of Libya and Tunisia, 2010 [More info]
We estimated means of 3.97 billion barrels of undiscovered oil, 38.5 trillion cubic feet of undiscovered natural gas, and 1.47 billion barrels of undiscovered natural gas liquids in these areas.
PDF Assessment of undiscovered oil and gas resources of Papua-New Guinea, eastern Indonesia, and East Timor, 2011 [More info]
We estimated means of 5.8 billion barrels of oil and 115 trillion cubic feet of undiscovered natural gas in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the Amu Darya Basin and Afghan-Tajik Basin Provinces, Afghanistan, Iran, Tajikistan, Turkmenistan, and Uzbekistan, 2011 [More info]
We estimated volumes of undiscovered, technically recoverable, conventional petroleum resources at 962 million barrels of oil, 52 trillion cubic feet of gas, and 582 million barrels of natural gas liquids in this area using a geology-based methodology.
PDF Assessment of undiscovered oil and gas resources of the Assam, Bombay, Cauvery, and Krishna-Godavari Provinces, South Asia, 2011 [More info]
Combining these areas, we estimated 3,534 million barrels of crude oil, 79,352 billion cubic feet of natural gass, and 1,679 million barrels of natural gas liquids using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the Azov-Kuban Basin Province, Ukraine and Russia, 2010 [More info]
We estimated mean volumes of technically recoverable, conventional, undiscovered petroleum resources at 218 million barrels of crude oil, 4.1 trillion cubic feet of natural gas, and 94 million barrels of natural gas liquids in this area.
PDF Assessment of Undiscovered Oil and Gas Resources of the Bighorn Basin Province, Wyoming and Montana, 2008 [More info]
We estimated a mean of 989 billion cubic feet of undiscovered natural gas, a mean of 72 million barrels of undiscovered oil, and a mean of 13 million barrels of undiscovered natural gas liquids in this area.
PDF Assessment of undiscovered oil and gas resources of the Central Burma Basin and the Irrawaddy-Andaman and Indo-Burman Geologic Provinces, Myanmar [More info]
We estimated mean volumes of 2.3 billion barrels of oil, 79.6 trillion cubic feet of gas, and 2.1 billion barrels of natrual gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the Chad Basin Province, North-Central Africa [More info]
Using a geology-based assessment methodology, we estimated mean volumes of 2.32 billion barrels of oil, 14.65 trillion cubic feet of natural gas, and 391 million barrels of natural gas liquids.
PDF Assessment of undiscovered oil and gas resources of the Cretaceous-Tertiary Composite Total Petroleum System, Taranaki Basin Assessment Unit, New Zealand [More info]
We estimated mean volumes of 487 million barrels of oil, 9.8 trillion cubic feet of gas, and 408 million barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the Devonian Marcellus Shale of the Appalachian Basin Province [More info]
We estimated a mean undiscovered natural gas resource of 84,198 billion cubic feet and a mean undiscovered natural gas liquids resource of 3,379 million barrels using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the Dnieper-Donets Basin Province and Pripyat Basin Province, Russia, Ukraine, and Belarus, 2010 [More info]
We estimated mean volumes of technically recoverable, conventional, undiscovered petroleum resources at 123 million barrels of crude oil, 4.7 trillion cubic feet of natural gas, and 131 million barrels of natural gas liquids in these two areas.
PDF Assessment of undiscovered oil and gas resources of the East Coast Mesozoic basins of the Piedmont, Blue Ridge Thrust Belt, Atlantic Coastal Plain, and New England Provinces, 2011 [More info]
We estimated 3,850 billion cubic feet of natural gas, 135 million barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Oil and Gas Resources of the East Greenland Rift Basins Province [More info]
Using a geology-based assessment methodology, we estimated the mean undiscovered conventional petroleum resources to be 31,400 million barrels of oil equivalent, present in oil, gas, and natural gas liquids.
PDF Assessment of undiscovered oil and gas resources of the Illinois Basin, 2007 [More info]
We estimated a mean of 214 million barrels of oil, 4.65 trillion cubic feet of natural gas, and 24 million barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the North Caspian Basin, Middle Caspian Basin, North Ustyurt Basin, and South Caspian Basin Provinces, Caspian Sea Area, 2010 [More info]
We estimated mean volumes of technically recoverable, conventional, undiscovered petroleum resources at 19.6 billion barrels of crude oil, 243 trillion cubic feet of natural gas, and 9.3 billion barrels of natural gas liquids.
PDF Assessment of undiscovered oil and gas resources of the North Sakhalin Basin Province, Russia, 2011 [More info]
We estimated 5.3 billion barrels of crude oil, 43.8 trillion cubic feet of natural gas, and 0.8 billion barrels of natural gas liquids as undiscovered, technically recoverable resources in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the Ordovician Utica Shale of the Appalachian Basin Province, 2012 [More info]
We estimated means of 940 million barrels of oil, 38.2 trillion cubic feet of gas, and 208 million barrels of natural gas liquids in these units using a geology based assessment methodology.
PDF Assessment of Undiscovered Oil and Gas Resources of the Permian Basin Province of West Texas and Southeast New Mexico, 2007 [More info]
We estimated a mean of 41 trillion cubic feet of undiscovered natural gas and a mean of 1.3 billion barrels of undiscovered oil in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Oil and Gas Resources of the Red Sea Basin Province [More info]
We estimated mean volumes of 5 billion barrels of undiscovered technically recoverable oil and 112 trillion cubic feet of recoverable gas in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the South Africa Coastal Province, Africa [More info]
We estimated mean volumes of 2.13 billion barrels of oil, 35.96 trillion cubic feet of natural gas, and 1,115 million barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the southern Siberian craton (Baykit High, Nepa--Botuoba High, Angara--Lena Terrace, and Cis--Patom Foredeep Provinces), Russia, 2011 [More info]
We estimated t 3.0 billion barrels of crude oil, 63.3 trillion cubic feet of natural gas, and 1.2 billion barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the Sud Province, north-central Africa [More info]
We estimated mean volumes of 7.31 billion barrels of oil, 13.42 trillion cubic feet of natural gas, and 353 million barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Oil and Gas Resources of the Timan-Pechora Basin Province, Russia, 2008 [More info]
We estimated means of 1.6 billion barrels of undiscovered oil and 9 trillion cubic feet of natural gas north of the Arctic Circle in this area.
PDF Assessment of undiscovered oil and gas resources of the Volga-Ural Region Province, Russia and Kazakhstan, 2010 [More info]
We estimated mean volumes of technically recoverable, conventional, undiscovered petroleum resources at 1.4 billion barrels of crude oil, 2.4 trillion cubic feet of natural gas, and 85 million barrels of natural gas liquids.
PDF Assessment of undiscovered oil and gas resources of the West African Costal Province, West Africa [More info]
We estimated mean volumes of 3.2 billion barrels of oil, 23.63 trillion cubic feet of natural gas, and 721 million barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Oil and Gas Resources of the West Greenland-East Canada Province, 2008 [More info]
We estimated a mean of 7.3 billion barrels of oil and a mean of 52 trillion cubic feet of undiscovered natural gas in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Oil and Gas Resources of the West Siberian Basin Province, Russia, 2008 [More info]
We estimated means of 3.7 billion barrels of undiscovered oil and 651 trillion cubic feet of natural gas north of the Arctic Circle in this area using a geology-based assessment methodology.
PDF Assessment of undiscovered oil and gas resources of the West Siberian Basin Province, Russia, 2010 [More info]
We estimated mean volumes of technically recoverable, conventional, undiscovered petroleum resources at 8 billion barrels of crude oil, 670 trillion cubic feet of natural gas, and 21 billion barrels of natural gas liquids in this area.
PDF Assessment of Undiscovered Oil and Gas Resources of the Williston Basin Province of North Dakota, Montana, and South Dakota, 2008 [More info]
We estimated mean undiscovered volumes of 3.8 billion barrels of undiscovered oil, 3.7 trillion cubic feet of associated/dissolved natural gas, and 0.2 billion barrels of undiscovered natural gas liquids using a geology-based assesment methodology.
PDF Assessment of undiscovered oil resources in the Bakken and Three Forks Formations, Williston Basin Province, Montana, North Dakota, and South Dakota, 2013 [More info]
We estimated mean undiscovered volumes of 7.4 billion barrels of oil, 6.7 trillion cubic feet of associated/dissolved natural gas, and 0.53 billion barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Oil Resources in the Devonian-Mississippian Bakken Formation, Williston Basin Province, Montana and North Dakota, 2008 [More info]
We estimated mean undiscovered volumes of 3.65 billion barrels of oil, 1.85 trillion cubic feet of associated dissolved natural gas, and 148 million barrels of natural gas liquids in this area using a geology-based assessment methodology.
PDF Assessment of Undiscovered Petroleum Resources of Southern and Western Afghanistan, 2009 [More info]
We estimated mean undiscovered resource volumes of 21.55 million barrels of oil, 44.76 billion cubic feet of non-associated natural gas, and 0.91 million barrels of natural gas liquids in the western Afghanistan Tirpul Assessment Unit.
PDF Assessment of Undiscovered Petroleum Resources of the Barents Sea Shelf [More info]
We estimated mean undiscovered, conventional, technically recoverable petroleum resources in the Barents Sea Shelf to be more than 76 billion barrels of oil equivalent using a geology-based assessment methodology.
PDF Assessment of Undiscovered Petroleum Resources of the North and East Margins of the Siberian Craton, Russian Federation [More info]
We estimated the mean undiscovered, conventional petroleum resources at 28 billion barrels of oil equivalent, including approximately 8 billion barrels of crude oil, 106 trillion cubic feet of natural gas, and 3 billion barrels of natural gas liquids.
PDF Assessment of undiscovered technically recoverable oil and gas resources of Puerto Rico and the Puerto Rico-U.S. Virgin Islands Exclusive Economic Zone, 2013 [More info]
We estimated means of 19 million barrels of undiscovered, technically recoverable oil and 244 billion cubic feet of undiscovered natural gas in this area using a geology based assessment methodology.
PDF Assessment of undiscovered, conventional oil and gas resources of Mexico, Guatemala, and Belize, 2012 [More info]
We estimated means of 19 billion barrels of oil and 83 trillion cubic feet of undiscovered natural gas resources in 10 geologic provinces of this area using a geology-based assessment methodology.
PDF Assessment of undiscovered, technically recoverable oil and gas resources of Armenia, 2014 [More info]
We estimated mean volumes of 1 million barrels of undiscovered, technically recoverable conventional oil and 6 billion cubic feet of undiscovered, technically recoverable conventional natural gas in this area using a geology-based assessment methodology.
Atlantic margin offshore sediments: cooperative database and GIS development website [More info]
This site is designed to provide information on federal interagency and cooperative developments related to coastal sand and gravel resources and management issues along the Atlantic continental margin.
Atlas of Antarctic research [More info]
Entry to the Atlas of Antarctic Research giving a common base map for displaying research results, data, and descriptions of projects. Layers can be viewed or downloaded as Digital Elevation Models (DEMs), digital aerial photos, and satellite images.
Bedform sedimentology [More info]
Bedform sedimentology home page with links to information on sedimentary structures including, explanatory text, computer-generated images and movies, photographs, and bedform simulation software.
Biological resource status and trends: Contaminants in soil [More info]
Information concerning status and trends of biological resources, focusing on contaminants in soil
PDF Circum-Arctic Resource Appraisal: Estimates of Undiscovered Oil and Gas North of the Arctic Circle [More info]
90 billion barrels of oil, 1,669 trillion cubic feet of natural gas, and 44 billion barrels of natural gas liquids may remain to be found in the Arctic, of which approximately 84 percent is expected to occur in offshore areas.
Coal database for Cook Inlet and North Slope, Alaska [More info]
Published and nonconfidential unpublished coal data from wells in Alaska. Includes well locations, depth and thickness of coal in well, formation type and name, and business administrative information such as permit numbers.
PDF Computer simulation of reservoir depletion and oil flow from the Macondo well following the Deepwater Horizon blowout [More info]
This model estimates, by simulation, the reservoir pressure, flow rate, and volume of oil discharged, and the report discusses the uncertainty in the estimates.
Cross-bedding, bedforms,and paleocurrents [More info]
The on-line version of Cross-Bedding, Bedforms, and Paleocurrents, with computer images, photographic images, and text.
Deserts, geology and resources [More info]
Online edition of booklet describing desert geology and mineral resources.
Devils Postpile National Park geologic story [More info]
Site has links to Devils Postpile's geologic history, rocks and minerals, geologic time, geologic maps.
Dinosaurs, fact and fiction [More info]
Online booklet with answers to frequently asked questions about dinosaurs.
Education resources for paleontology [More info]
Contacts and other sources of information for teachers, students, and others interested in paleontology with links to related USGS websites and on-line publications.
Effects of Building a Sand Barrier Berm to Mitigate the Effects of the Deepwater Horizon Oil Spill on Louisiana Marshes [More info]
An assessment of the potential protective effects on coastal marshes in Louisiana of building barrier berms seaward of the existing barrier islands and inlets to help block or reduce the onshore spread of oil from the Deepwater Horizon oil spill.
PDF Famous building stones of our Nation's capital [More info]
Describes the types and sources of materials used to build some of the most famous landmarks in Washington D.C.
Fossil locations and data for the Taylor Mountains, and parts of the Bethel, Goodnews, and Dillingham quadrangles, southwestern Alaska [More info]
Location, taxa present, and geological context for 290 fossil samples collected in this area.
Geochemical sediment analysis procedures [More info]
Manual of chemical sediment analysis using Coulometer and CHN Analyzers to measure carbon content, spectrometric analysis for biogenic silica, and radiochemistry to measure isotopes. Includes techniques,sample preparation, and safety procedures.
PDF Geologic hazards at volcanoes [More info]
Poster diagram showing the various hazards that accompany volcanic activity as they relate to the structure of the volcano.
Geologic map of the Eagle quadrangle, Eagle County, Colorado [More info]
The Eagle quadrangle covers an area that straddles the Eagle River and Interstate 70 (I-70) and it includes the town of Eagle, Colo., which is located in the southwestern part of the quadrangle, just south of I-70 and the Eagle River, about 37 km west of
Geologic mapping in National Parks: National Park Service Support Project [More info]
Summaries of geologic projects in cooperation with the National Park Service including Grand Canyon National Park, Lake Mead National Recreation Area, Golden Gate National Recreation Area, Joshua Tree National Park, Yosemite National Park, and others.
Geologic time online edition [More info]
Booklet giving general explanations of geologic time, major divisions of geologic time, relative and radiometric time scales, index fossils, and the age of the earth.
Geology of Lake Meade National Recreation Area [More info]
Site has links to Lake Mead National Recreation Area: geologic field trips, geologic history, plate tectonics, rocks and minerals, geologic time, geologic maps, and glossary.
Geology of Mojave National Preserve [More info]
Site has links to Mohave National Preserve: geologic field trips, geologic history, plate tectonics, rocks and minerals, geologic time, geologic maps, and glossary.
Geology of Sunset Crater Volcano National Monument [More info]
Site has links to Sunset Crater Volcano National Monument geologic field trips, geologic history, plate tectonics, rocks and minerals, geologic time, geologic maps, and glossary.
Geology of the Chesapeake and Ohio Canal National Historical Park and Potomac River Corridor, District of Columbia, Maryland, West Virginia, and Virginia [More info]
Rocks representing a variety of tectonic and depositional environments outcrop along the canal and towpath and reveal the geologic history of the central Appalachian region from the Mesoproterozoic to Jurassic Period.
PDF Geology of the Devonian Marcellus Shale--Valley and Ridge province, Virginia and West Virginia--a field trip guidebook for the American Association of Petroleum Geologists Eastern Section Meeting, September 28-29, 2011 [More info]
Detailed background information with descriptions of sites and photos explaining the geology of this organic-rich shale unit that has recently become a significant source of natural gas resources.
PDF In-place oil shale resources examined by grade in the major basins of the Green River Formation, Colorado, Utah, and Wyoming [More info]
We estimated a total of 4.285 trillion barrels of oil in-place in the oil shale of this area using a geology-based assessment methodology.
PDF In-place oil shale resources in the saline-mineral and saline-leached intervals, Parachute Creek Member of the Green River Formation, Piceance Basin, Colorado [More info]
We estimated 920 and 352 billion barrels of oil are potentially recoverable from oil shale resources using oil-yield cutoffs of 15 and 25 gallons per ton, respectively.
PDF Kilauea--an Explosive Volcano in Hawaii [More info]
Explains how explosive eruptions occur here, shows the history of its eruptions, and describes the effects and hazards that accompany them.
Laboratory manual for x-ray powder diffraction [More info]
Report presents an abridged guide for laboratory technicians and students using X-ray powder diffraction methodology to study crystalline structure and to determine the mineralogy of finer grained sediments, especially clays.
PDF Limestone - A crucial and versatile industrial mineral commodity [More info]
Uses and availability of limestone and related commodities such as lime and portland cement. Hazards of limestone terranes due to erosion and sinkhole formation.
Major fossil groups [More info]
Discusses how fossils can be grouped and studied by size, habitat type, and phylogenetic groups. Shows how fossil classification groups are used to solve geologic problems at the USGS.
Map of assessed tight-gas resources in the United States [More info]
Shows where there are potential commercial sources of natural gas trapped in formations with very low permeability to gas (not necessarily shale units). Hydraulic fracturing might be needed in order to exploit these resources.
Marine aggregate resources and processes [More info]
Regional studies mapping the seafloor sedimentary character and assessing marine sand and gravel resources around the United States, to inform beach nourishment and coastal restoration, benthic habitat and sediment transport studies
Mars Global Digital Dune Database; MC-1 [More info]
Distribution and morphological character of moderate to large size dune fields on Mars from 65 degrees North to the north pole.
Megafossils: vertebrates - technique of paleontological analyses [More info]
Brief description of vertebrates and use of their fossil bones and footprints to aid in dating strata in biostratigraphy and to decipher past climates and recreate ancient ecosystems in paleoecology, paleoclimatology and paleobiogeography.
Mineral deposit models [More info]
Publications by the USGS on mineral deposit models converted to digital files that can be downloaded. Some are *.pdf files requiring Adobe Acrobat Reader to view and download text
Mollusks [More info]
Information on mollusks and uses of the identification of fossil mollusks in the fields of biostratigraphy, geochronology, paleocoeanography, paleoecology and ecosystems history. Links to experts and related USGS projects.
PDF Monitoring and analysis of sand dune movement and growth on the Navajo Nation, southwestern United States [More info]
We combine long-term records from aerial photographs, detailed mapping using survey-grade GPS, and ground-based lidar with meteorological monitoring. Sand dune migration rates are currently about 35 meters per year.
Multielement geochemical dataset of surficial materials for the northern Great Basin [More info]
This report presents geochemical data generated during mineral and environmental assessments for the Bureau of Land Management in northern Nevada, northeastern California, southeastern Oregon, and southwestern Idaho, along with metadata and maps.
PDF Nahcolite Resources in the Green River Formation, Piceance Basin, Northwestern Colorado [More info]
Resource assessment of nahcolite, a mineral with a variety of industrial uses, which occurs with oil shale and is affected by the processes used to recover hydrocarbons from the rock.
North Cascades National Park geology, a mountain mosaic [More info]
Homepage for information on geology of the North Cascades National Park in the state of Washington. Includes links to geologic story, geologic field trips, geologic maps, plate tectonics, rocks and minerals, geologic time, and glossary.
Northern Gulf of Mexico ecosystem change and hazard susceptibility [More info]
Map interfaces and data in the area offshore Louisiana, Mississippi, and Alabama which was affected most by hurricane Katrina and, more recently, the oil spill.
PDF Occurrence, distribution, and concentrations of selected contaminants in streambed- and suspended-sediment samples collected in Bexar County, Texas, 2007-09 [More info]
Study showing which chemicals found in sediments were most common, with methods used and likely consequences of their high concentrations.
Oil Pollution Impacts on Birds [More info]
A compilation of information, including reports, bibliographies, and data, on all aspects oil toxicity relevant to birds and other wildlife.
Organic metamorphism in the California petroleum basins: Chapter B - Insights from extractable bitumen and saturated hydrocarbons [More info]
Part B of a complex report on the results of geochemical analysis of 75 shale samples from the Los Angeles, Ventura, and San Joaquin Basins to gather observations relevant to exploration regarding the formation of oil deposits in these basins.
Paleontological analyses [More info]
Links to USGS capabilities in paleontological analyses of fossils such as mollusks, diatoms, palynomorphs, ostracodes, calcareous nannofossils, etc. Includes descriptive information, technique, equipment, and contacts for each fossil group.
Paleontology at the U.S. Geological Survey [More info]
USGS Paleontology home page documenting the wide diversity in paleontologic studies and applications within the USGS.
Paleontology selected online resources [More info]
Selection of links to web sites dealing with paleontology and related disciplines including links to museums, academia, societies, surveys, and groups of fossils.
Photo gallery of the Long Valley area, California [More info]
Selection of photographic images of the Long Valley area that illustrate the consequences of the past geologic history of the Sierra Nevada, Long Valley Caldera, the Mono-Inyo Craters volcanic chain, glaciation, and faulting.
Photo glossary of volcano terms [More info]
Illustrates and describes commonly used volcano-related terms.
Potential environmental impacts of quarrying stones in karst - a literature review [More info]
This report is the result of an extensive literature search to determine the state-of-the-knowledge regarding environmental impacts from quarrying carbonate rocks in karst formations to better use of karst resources in sustainable ways.
PDF Potential for technically recoverable unconventional gas and oil resources in the Polish-Ukrainian Foredeep, Poland [More info]
Using a performance-based geological assessment methodology, we estimated mean volumes of 1,345 billion cubic feet of potentially technically recoverable gas and 168 million barrels of technically recoverable oil and natural gas liquids here.
Potential hazards from future volcanic eruptions in the Long Valley -- Mono Lake Area, California [More info]
An introduction to the volcano hazards in the Long Valley area based on the past geologic history of the Long Valley Caldera and the Mono-Inyo Craters volcanic chain.
PDF Remaining recoverable petroleum in giant oil fields of the Los Angeles Basin, southern California [More info]
We estimated between 3.2 and 5.6 billion barrels of additional oil may be recovered with existing technology in this area using a probabilistic geology-based assessment methodology.
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