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Earth sciences
Broad term for all science related to the study of the earth.
Subtopics:
Atmospheric sciences (44 items)
Geochemistry (176 items)
Geography (159 items)
Geology (470 items)
Geophysics (117 items)
Glaciology (8 items)
Hydrology (410 items)
Limnology (19 items)
Ocean sciences (51 items)
Paleontology (21 items)
Soil sciences (5 items)
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Results 71 - 80 of 1319 listed alphabetically [list by similarity]
Assessing the impacts of climate variability and change on the Nation's resources [More info]
Site for a USGS project under the U.S. Global Change Research Program for a national assessment of the impacts of climate variability and change on resources with links to impacts in Alaska, western U.S., public lands, and water resources.
Assessing the vulnerability of public-supply wells to contamination--Edwards aquifer near San Antonio, Texas [More info]
Well vulnerability results from the young age of groundwater. Karst features permit contaminants to move into the aquifer easily, leading to a well mixed aquifer; geochemical processes do not degrade contaminants quickly.
PDF Assessing the vulnerability of public-supply wells to contamination: Rio Grande aquifer system in Albuquerque, New Mexico [More info]
Explains the natural and human-affected factors that determine the concentration of contaminants in groundwater, especially where the concentration is different at the surface than at depth, and where pumping varies with time.
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, Piceance Basin, Western Colorado [More info]
We estimated a total of 1.525 trillion barrels of oil are in place in seventeen oil shale zones in this area using a geology-based assessment methodology.
Assessment of In-Place Oil Shale Resources of the Green River Formation, Uinta Basin, Utah and Colorado [More info]
Using a geology-based assessment methodology, we estimated a total of 1.32 trillion barrels of oil in place in eighteen oil shale zones in this Eocene geologic unit.
PDF Assessment of Moderate- and High-Temperature Geothermal Resources of the United States [More info]
The electric power generation potential from identified geothermal systems is 9,057 Megawattselectric (MWe), distributed over 13 states. Undiscovered resources are estimated to provide an additional 30,033 MWe.
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 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.
Assessment of Undiscovered Natural Gas Resources of the Arkoma Basin Province and Geologically Related Areas [More info]
We estimated mean volumes of 38 trillion cubic feet (TCF) of undiscovered natural gas, 159 million barrels of natural gas liquid (MMBNGL), and no oil in accumulations of 0.5 million barrels (MMBO) or larger in this area.
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