Book Chapters
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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
Geologic controls on the composition of natural waters and mine waters draining diverse mineral-deposit types Geologic controls on the composition of natural waters and mine waters draining diverse mineral-deposit types
No abstract available.
Authors
Geoffrey S. Plumlee, K. S. Smith, M. R. Montour, W. H. Ficklin, E. L. Mosier
Workshop summary, conclusions and recommendations Workshop summary, conclusions and recommendations
No abstract available.
Authors
W.H. Benson, R.T. Di Giulio, D. E. Tillitt, L. Birnbaum, P.L deFur, Jay W. Gooch, Ellen Mihaich, C. Tyler
Characterizing fractured-zone flow using numerical flow-log models Characterizing fractured-zone flow using numerical flow-log models
Water-quality monitoring and hydraulic testing in fractured bedrock aquifers involves two important tasks: 1) identifying the hydraulically active fractures intersecting the borehole, and 2) inferring how the specific entry or exit ports in the borehole wall are connected to large-scale flow paths in the region surrounding the borehole. Effective characterization of fractured bedrock...
Authors
Frederick L. Paillet
Yellowstone bears Yellowstone bears
No abstract available.
Authors
R.R. Knight, B.M. Blanchard, P. Schullery
Potassium-calcium decay system Potassium-calcium decay system
Potassium has three isotopes (see Potassium); potassium-40 ( 40K) is radioactive and decays to both calcium-40 ( 40Ca) and argon-40 ( 40Ar). The combined half-life of 40K is 1.25 billion years. The branched decay scheme of 40K is shown in Figure P33. It decays by β- decay to 40Ca and to 40Ar by both electron capture and positron decay (see Potassium-argon decay system). Although 89.52%...
Authors
Brian D. Marshall
Dating methods Dating methods
One of the greatest contributions of geochemistry to man's knowledge of the Earth and solar system has been the development and application of chemical and isotopic techniques used to measure the passage of time. Rates of geologic processes, rates of biological evolution, and contemporaneity of past events all depend on accurate ages of geologic materials. Many geochemical methods have...
Authors
Brian D. Marshall
A constructed wetland system for treatment of landfill leachate, Monroe County, New York A constructed wetland system for treatment of landfill leachate, Monroe County, New York
No abstract available.
Authors
D.A.V. Eckhard, J.M. Surface, J.H. Peverly
Simulation of the potential responses of regional climate and surface processes in western North America to a canonical Heinrich event Simulation of the potential responses of regional climate and surface processes in western North America to a canonical Heinrich event
No abstract available.
Authors
S. W. Hostetler, P. J. Bartlein
Continental diatoms as indicators of long-term environmental change Continental diatoms as indicators of long-term environmental change
It is curious that diatoms, whose short lifespans and capacity for rapid regeneration make them especially suitable for short-term paleoenvironmental studies, would also have a significant role as indicators of long-term environmental change. This chapter explores the nature of long diatom records, their relation to global environmental changes, guidelines for their interpretation, and...
Authors
J. Platt Bradbury
Laramide to Holocene structural development of the northern Colorado Front Range Laramide to Holocene structural development of the northern Colorado Front Range
The Rocky Mountain province of the United States is a classic basement-involved foreland orogen. Deformation during the Late Cretaceous to Eocene Laramide orogeny created an anastomosing system of basement-cored arches that bound the northern and eastern margins of the Colorado Plateau and the elliptical sedimentary basins of the Rockies. The tectonic mechanism for Laramide deformation...
Authors
Eric A. Erslev, Karl S. Kellogg, Bruce Bryant, Timothy K. Ehrlich, Steven M. Holdaway, Charles W. Naeser
Radiotracer studies of bacterial methanogenesis in sediments from the Dead Sea and Solar Lake (Sinai) Radiotracer studies of bacterial methanogenesis in sediments from the Dead Sea and Solar Lake (Sinai)
No abstract available.
Authors
Mark Marvin-DePasquale, Yoram. Geological Survey Cohen, Ronald S. Oremland, A. Oren
Lithofacies of the Helena and Wallace formations (Belt Supergroup, middle Proterozoic), Montana and Idaho Lithofacies of the Helena and Wallace formations (Belt Supergroup, middle Proterozoic), Montana and Idaho
No abstract available.
Authors
C. A. Wallace, J. E. Harrison, D. J. Lidke, J. W. Whipple