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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.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 1,000 books 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: 970
Magmatism, metasomatism, tectonism, and mineralization in the Humboldt Range, Pershing County, Nevada
Introduction
The Humboldt Range, Pershing County, Nevada, predominantly consists of Mesozoic igneous and sedimentary rocks that were modified several times by magmatism, metasomatism, and tectonism, and contain a variety of metallic (Ag, Au, Pb, Zn, Sb, W, Hg) and non-metallic (dumortierite, pinite, fluorite) mineral deposits (Knopf, 1924; Kerr and Jenney, 1935; Kerr, 1938; Cameron, 1939; Campbe
Authors
Peter G. Vikre
Optimally managing water resources in large river basins for an uncertain future
Managers of large river basins face conflicting needs for water resources such as wildlife habitat, water supply, wastewater assimilative capacity, flood control, hydroelectricity, and recreation. The Savannah River Basin for example, has experienced three major droughts since 2000 that resulted in record low water levels in its reservoirs, impacting local economies for years. The Savannah River B
Authors
Jr. Edwin A. Roehl, Paul Conrads
Freshwater mussels of Florida
An exhaustive guide to all aspects of the freshwater mussel fauna in Florida,Freshwater Mussels of Florida covers the ecology, biology, distribution, and conservation of the many species of bivalve mollusks in the Sunshine State. In the past three decades, researchers, the public, businesses that depend on wildlife, and policy makers have given more attention to the threatened natural diversity of
Authors
James D. Williams, Robert S. Butler, Gary L. Warren, Nathan A. Johnson
Geomorphological Fieldwork
Geomorphological Fieldwork addresses a topic that always remains popular within the geosciences and environmental science. More specifically, the volume conveys a growing legacy of field-based learning for young geomorphologists that can be used as a student book for field-based university courses and postgraduate research requiring fieldwork or field schools. The editors have much experience of f
Authors
Mary J Thornbush, Casey D Allen, Faith A. Fitzpatrick
Stitching the western Piedmont of Virginia: Early Paleozoic tectonic history of the Ellisville Pluton and the Potomac and Chopawamsic Terranes
The theme of the 2014 Virginia Geological Field Conference is the tectonic development, economic geology, and seismicity of the western Piedmont of Louisa County, Virginia. It is timely for the conference to turn its attention here, for during the past decade these aspects of western Piedmont geology have garnered the renewed attention of researchers. In terms of regional tectonics, it has been hy
Authors
K. S. Hughes, J. P. Hibbard, R.T. Sauer, William C. Burton
Sampling and monitoring for the mine life cycle
Sampling and Monitoring for the Mine Life Cycle provides an overview of sampling for environmental purposes and monitoring of environmentally relevant variables at mining sites. It focuses on environmental sampling and monitoring of surface water, and also considers groundwater, process water streams, rock, soil, and other media including air and biological organisms. The handbook includes an appe
Authors
Virginia T. McLemore, Kathleen S. Smith, Carol C. Russell
List of recent land mammals from Mexico, 2014
We provide an updated list of the Recent land mammals of Mexico and include information on the taxonomy of certain species, and where appropriate, the endemic and threatened status of all species listed. Several taxonomic and nomenclatural changes have been made since publication of the last list of the Mexican terrestrial mammalian fauna. Within the period from 2005 to present, there have been at
Authors
Jose Ramirez-Pulido, Noe Gonzalez-Ruiz, Alfred L. Gardner, Joaquin Arroyo-Cabrales
Characteristics of sandhill crane roosts in the Sacramento-San Joaquin delta of California
The Sacramento-San Joaquin Delta (Delta) region of California is an important wintering region for 2 subspecies of
Pacific Flyway sandhill cranes (Grus canadensis): the Central Valley Population of the greater sandhill crane (G. c. tabida) and
the Pacific Flyway Population of the lesser sandhill crane (G. c. canadensis). During the winters of 2007-08 and 2008-09 we
conducted roost counts, roadside
Authors
Gary L. Ivey, Bruce D. Dugger, Caroline P. Herziger, Michael L. Casazza, Joseph P. Fleskes
Effects of environmental amenities and locational disamenities on home values in the Santa Cruz watershed: a hedonic analysis using census data
For this study, we used the hedonic pricing method to measure the effects of natural amenities on home prices in the U.S-side of the Santa Cruz Watershed. We employed multivariate spatial regression techniques to estimate how difference factors affect median home values in 613 census block groups of the 2000 Census, accounting for spatial autocorrelation, spatial lags, and/or spatial heterogeneit
Authors
Gaurav Arora, George Frisvold, Laura Norman
Passage of native riverine fishes through geometrically different sections of a vertical slot fishway on the Moselle River, Germany
In order to study effects of different geometric types of pools or change of the flow direction on the passability of fish, sets of PIT antennas were installed inside a modern vertical slot fishway at the mouth of the River Moselle. Fish of 13 abundant species were caught and tagged with PIT tags in 2013 and released in the tailwater of Koblenz. 16% of the tagged fish were detected entering the fi
Authors
Matthias Pitsch, Bernd Mockenhaupt, Theodore R. Castro-Santos
Distribution, abundance, and migration timing of Greater and Lesser Sandhill Cranes wintering in the Sacramento-San Joaquin River Delta region of California
The Sacramento-San Joaquin River Delta region of California (hereafter, Delta region) is an important wintering
region for the Central Valley Population of greater sandhill cranes (Grus canadensis tabida) and lesser sandhill cranes (G.
c. canadensis), but basic information about the ecology of these birds is lacking to design a biologically sound conservation
strategy. During the winters of 2007-0
Authors
Gary L. Ivey, Bruce D. Dugger, Caroline P. Herziger, Michael L. Casazza, Joseph P. Fleskes
Reservoir controls on the occurrence and production of gas hydrates in nature
Gas hydrates in both arctic permafrost regions and deep marine settings can occur at high concentrations in sand-dominated reservoirs, which have been the focus of gas hydrate exploration and production studies in
northern Alaska and Canada, and offshore in the Gulf of Mexico, off the southeastern coast of Japan, in the Ulleung Basin off the east coast of the Korean Peninsula, and along the easter
Authors
Timothy Scott Collett