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Canada (13 items)
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United States (1170 items)
U.S. possessions and associated areas (31 items)
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Assessing the impact of urban sprawl on soil resources in the United States using nighttime "city lights" satellite images and digital soils maps [More info]
Paper from Land Use History of North America giving results of a study to estimate the extent of developed land in the United States and the impact of development on soil 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.
Assessment of Contaminant Exposure and Effects on Ospreys Nesting along the Lower Duwamish River, Washington, 2006-07 [More info]
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.
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