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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: 975
Non-destructive measurement of soil liquefaction density change by crosshole radar tomography, Treasure Island, California Non-destructive measurement of soil liquefaction density change by crosshole radar tomography, Treasure Island, California
A ground penetrating radar (GPR) experiment at the Treasure Island Test Site [TILT] was performed to non-destructively image the soil column for changes in density prior to, and following, a liquefaction event. The intervening liquefaction was achieved by controlled blasting. A geotechnical borehole radar technique was used to acquire high-resolution 2-D radar velocity data. This method...
Authors
Robert E. Kayen, Walter A. Barnhardt, Scott Ashford, Kyle Rollins
North American Bird Conservation Initiative: Bringing it all together North American Bird Conservation Initiative: Bringing it all together
No abstract available.
Authors
J. R. Clark, D. Waller, J.A. Kushlan, G.T. Myers, S. Senner, S. Yaich, G. Vandel, G. Fenwick, V. Mezainis, R.D. Sparrowe, A. Wentz, D. Pashley
Peces de la Isla del Coco Fishes Peces de la Isla del Coco Fishes
No abstract available.
Authors
Virginia H. Garrison
Plant Checklist for Point Reyes National Seashore (Revised) Plant Checklist for Point Reyes National Seashore (Revised)
No abstract available at this time
Authors
Gary M. Fellers, Virginia Norris, Wilma Follette, Doreen Smith
Sea ducks in the Atlantic Flyway: population status and a review of special hunting seasons Sea ducks in the Atlantic Flyway: population status and a review of special hunting seasons
No abstract available.
Authors
David F. Caithamer, M. Otto, P.I. Padding, J.R. Sauer, G.H. Haas
Some geophysical work in the U.S. Geological Survey Some geophysical work in the U.S. Geological Survey
No abstract available.
Authors
D. L. Campbell, V.F. Labson, V.J. Grauch
The bedrock geology of Seattle The bedrock geology of Seattle
No abstract available.
Authors
R. A. Haugerud, Peter J. Haeussler
The hazards of eruptions through lakes and seawater The hazards of eruptions through lakes and seawater
Eruptions through crater lakes or shallow seawater, referred to here as subaqueous eruptions, present hazards from hydromagmatic explosions, such as base surges, lahars, and tsunamis, which may not exist at volcanoes on dry land. We have systematically compiled information from eruptions through surface water in order to understand the circumstances under which these hazards occur and...
Authors
L.G. Mastin, J.B. Witter
The Minnesota wolf: from endangered to recovered The Minnesota wolf: from endangered to recovered
No abstract available.
Authors
L.D. Mech
The role of "blebbing" in overcoming the hydrophobic barrier during biooxidation of elemental sulfur by Thiobacillus thiooxidans The role of "blebbing" in overcoming the hydrophobic barrier during biooxidation of elemental sulfur by Thiobacillus thiooxidans
Brimstone Basin, in southeastern Yellowstone National Park, Wyoming is an ancient hydrothermal area containing solfataric alteration. Drainage waters flowing from Brimstone Basin had pH values as low as 1.23 and contained up to 1.7×106 MPN/ml acidophilic sulfur-oxidizing bacteria. Thiobacillus thiooxidans was the dominant sulfur-oxidizing bacterium recovered from an enrichment culture...
Authors
C. Knickerbocker, D. Kirk Nordstrom, G. Southam