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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: 6197
Viral hemorrhagic septicemia Viral hemorrhagic septicemia
No abstract available
Authors
P. E. McAllister, W.N. Batts
Weathering and erosion aspects of small catchment research. Weathering and erosion aspects of small catchment research.
No abstract available
Authors
O.P. Bricker, Tomas Paces, C.E. Johnson, Harald Sverdup
Whip-poor-will Caprimulgus vociferus Whip-poor-will Caprimulgus vociferus
No abstract available.
Authors
C.S. Robbins
Wildlife radiotelemetry Wildlife radiotelemetry
No abstract available.
Authors
M.D. Samuel, M.R. Fuller
Yellow-throated vireo Vireo flavifrons Yellow-throated vireo Vireo flavifrons
No abstract available.
Authors
C.S. Robbins
Wetland systems and their response to management Wetland systems and their response to management
No abstract available.
Authors
Glenn R. Guntenspergen, J.R. Keough, J. Allen
Mobility of radioisotopes in marine surface sediments Mobility of radioisotopes in marine surface sediments
Transport of a radioisotope in a sediment-water system can be retarded by sorption of the isotope to solid; which is controlled by the affinity of the radioisotope for the sediment particles. In order to study trace metal and ra- dionuclide mobility on the sea floor, the following measurements were carried out: (1)effective diffusion rates in sediments in the laboratory and on the sea...
Authors
Marilyn R. Buchholtz ten Brink, P. H. Santschi
Modelling passive margin sequence stratigraphy Modelling passive margin sequence stratigraphy
We have modelled stratigraphic sequences to aid in deciphering the sedimentary response to sea-level change. Sequence geometry is found to be most sensitive to sea level, but other factors, including subsidence rate and sediment supply, can produce similar changes. Sediment loading and compaction also play a major role in generating accommodation, a factor often neglected in sequence...
Authors
M.S. Steckler, D. Reynolds, B. Coakley, B.A. Swift, R. D. Jarrard
Seasonal variations of Zn/Cu ratios in acid mine water from Iron Mountain, California Seasonal variations of Zn/Cu ratios in acid mine water from Iron Mountain, California
Time-series data on Zn/Cu weight ratios from portal effluent compositions [(Zn/Cu)water] at Iron Mountain, California, show seasonal variations that can be related to the precipitation and dissolution of melanterite [(FeII,Zn,Cu)SO4·7H2O]. Mine water and actively forming melanterite were collected from underground mine workings and chemically analyzed. The temperature-dependent...
Authors
Charles N. Alpers, D. Kirk Nordstrom, J. Michael Thompson
Transport and natural attenuation of Cu, Zn, As, and Fe in the acid mine drainage of Leviathan and Bryant Creeks Transport and natural attenuation of Cu, Zn, As, and Fe in the acid mine drainage of Leviathan and Bryant Creeks
The Leviathan and Bryant Creek (LBC) drainage system, on the border of California and Nevada, flows through overburden and waste from a former open-pit sulfur mine. The drainage contains acid mine waters with high concentrations of several trace elements, including Cu, Zn, and As, derived from oxidative weathering of sulfides in the wastes and altered bedrock. In June and October, 1982...
Authors
Jenny G. Webster, D. Kirk Nordstrom, Kathleen S. Smith