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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 151 - 160 of 1333 listed by similarity [list alphabetically]
PDF Assessing the Vulnerability of Public-Supply Wells to Contamination: Floridan Aquifer System Near Tampa, Florida [More info]
Using ground-water geochemical analyses and mathematical models, the factors affecting the quality of public water supply were identified as mixing of very recent recharge with older water, karst features, natural geochemical processes, and pumping.
Assessing the Vulnerability of Public-Supply Wells to Contamination: Glacial Aquifer System in Woodbury, Connecticut [More info]
Sources and effects of contamination surrounding a single well in western Connecticut
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 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 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 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.
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