Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2488
Goals, strategies, priorities, and tasks of a national landslide hazard-reduction program Goals, strategies, priorities, and tasks of a national landslide hazard-reduction program
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
By
Geology, Energy, and Minerals Mission Area, Natural Hazards Mission Area, Energy Resources Program, Landslide Hazards Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geologic Hazards Science Center, Geology, Minerals, Energy, and Geophysics Science Center
Research in the Geysers-Clear Lake geothermal area, Northern California Research in the Geysers-Clear Lake geothermal area, Northern California
The Geysers-Clear Lake area is one of two places in the world where major vapor-dominated hydrothermal reservoirs are commercially exploited for electric power production. Because energy can be extracted more efficiently from steam than from hot water, vapor-dominated systems are preferable for electric power generation, although most geothermal electric power facilities tap water...
Regenerate faults of small Cenozoic offset as probable earthquake sources in the southeastern United States Regenerate faults of small Cenozoic offset as probable earthquake sources in the southeastern United States
No abstract available.
Authors
Carl M. Wentworth, Marcia Mergner-Keefer
Drake Peak — A structurally complex rhyolite center in southeastern Oregon Drake Peak — A structurally complex rhyolite center in southeastern Oregon
The Drake Peak volcanic center of middle Miocene age, located about 25 km northeast of Lakeview, Oreg., is a structurally complex eruptive center that resulted from several episodes of intrusion and extrusion of rhyolite. Two thousand meters of andesite and basalt flows, lahars, and volcaniclastic rocks of late Eocene age, and of basaltic andesite, tuff, and flood basalts of Eocene to...
Authors
Ray E. Wells
Annual review of environmental geology Annual review of environmental geology
No abstract available.
Authors
R.N. Passero, E. E. Brabb
Tectonic relations of carbon dioxide discharges and earthquakes Tectonic relations of carbon dioxide discharges and earthquakes
CO2‐rich springs occur worldwide along major zones of seismicity. They are mostly in young orogenic belts, but some are in areas of rifting continental platforms. Analyses of 13C content indicate that much of the CO2 is derived from the mantle and that other important sources are the metamorphism of marine carbonate‐bearing sedimentary rocks and the degradation of organic material. The...
Authors
W. P. Irwin, Ivan Barnes
Neogene sedimentation on the outer continental margin, southern Bering Sea Neogene sedimentation on the outer continental margin, southern Bering Sea
Neogene sedimentary rocks and sediments from sites on the outer continental margin in the southern Bering Sea and on the Alaska Peninsula are dominated by volcanic components that probably were eroded from an emergent Aleutian Ridge. A mainland continental source is subordinate. Most sediment in the marine environment was transported to the depositional sites by longshore currents...
Authors
T.L. Vallier, M.B. Underwood, J.V. Gardner, J.A. Barron
Comments and replies on ‘Collision-deformed Paleozoic continental margin, western Brooks Range, Alaska’: Reply Comments and replies on ‘Collision-deformed Paleozoic continental margin, western Brooks Range, Alaska’: Reply
No abstract available.
Authors
Michael Churkin, Warren J. Nokleberg
Allochthonous Jurassic ophiolite in northwest Washington Allochthonous Jurassic ophiolite in northwest Washington
Fragments of Jurassic ophiolite having U-Pb zircon ages narrowly grouped at 160 to 170 m.y. are widespread over parts of northwest Washington. The Haystack thrust fault is inferred to mark the base of the ophiolite in the San Juan Islands and adjacent Cascade foothills; other bodies of mafic and ultramafic rock in the western Cascades may be klippen of the Haystack thrust plate. The...
Authors
John T. Whetten, R. E. Zartman, Richard J. Blakely, David L. Jones
Sedimentology and geochemistry of surface sediments, outer continental shelf, southern Bering Sea Sedimentology and geochemistry of surface sediments, outer continental shelf, southern Bering Sea
Present-day sediment dynamics, combined with lowerings of sea level during the Pleistocene, have created a mixture of sediments on the outer continental shelf of the southern Bering Sea that was derived from the Alaskan Mainland, the Aleutian Islands, and the Pribilof ridge. Concentrations of finer-grained, higher-organic sediments in the region of the St. George basin have further...
Authors
J.V. Gardner, W.E. Dean, T.L. Vallier