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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6063
Fish habitat evaluation models in environmental assessments
No abstract available.
Authors
Clair B. Stalnaker
Sulfidization and magnetization above hydrocarbon reservoirs
Post-depositional iron-sulfide (Fe-S) minerals that are related to hydrocarbon seepage have changed the original magnetizations at Cement oil field (Anadarko basin, Oklahoma), at Simpson oil field (North Slope basin, Alaska), and above deep Cretaceous oil and gas reservoirs, south Texas coastal plain. At Cement, ferrimagnetic pyrrhotite (Fe7S8) formed with pyrite and marcasite in Permian red beds.
Authors
Richard L. Reynolds, Martin B. Goldhaber, Michele L. Tuttle
Aspects of the biogeochemistry of methane in Mono Lake and the Mono Basin of California
Above-ambient levels of methane and higher hydrocarbons were detected in the atmosphere of the Mono Basin. These gases emanated from several different sources, including natural gas seeps (thermogenic and biogenic), and methanogenic activity in sediments. Seeps were distributed over nearly 33% of the lake bottom and were also present in the exposed former lakebed. They originated from one or more
Authors
Ronald S. Oremland, Laurence G. Miller, Charles Colbertson, S.W. Robinson, Richard L. Smith, D. R. Lovley, Michael J. Whiticar, G. King, Ronald P. Kiene, Niels Iversen, Melinda Sargent
A speculative history of the San Andreas fault in the central Transverse Ranges, California
It is generally accepted that the San Andreas fault formed between 4 and 5 Ma and that rocks west of it are now part of the Pacific plate, moving northwest relative to North America at 5 to 6 cm/yr. This model is inconsistent with the geologic record in the central Transverse Ranges.Right-lateral shear began in the vicinity of the San Andreas fault system in early Miocene time. The San Andreas fau
Authors
R.J. Weldon, K. E. Meisling, J. Alexander
Cumulative impacts assessment and management planning: lessons learned to date
No abstract available.
Authors
S. C. Williamson
Limits on quantitative descriptions of biocolloid mobility in contaminated groundwater
No abstract available.
Authors
Ronald W. Harvey, E.J. Bouwer
Environmental tracers for age dating young ground water
No abstract available.
Authors
L.N. Plummer, R. L. Michel, E.M. Thurman, Pierre D. Glynn
Physical transport influencing biogeochemistry within the stream catchment continuum
No abstract available.
Authors
Kenneth E. Bencala, John H. Duff, Judson W. Harvey, A.P. Jackman, F.J. Triska