Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2354
Net dextral slip, Neogene San Gregorio–Hosgri fault zone, coastal California: Geologic evidence and tectonic implications
Reinterpretation of onshore and offshore geologic mapping, examination of a key offshore well core, and revision of cross-fault ties indicate Neogene dextral strike slip of 156 ± 4 km along the San Gregorio–Hosgri fault zone, a major strand of the San Andreas transform system in coastal California. Delineating the full course of the fault, defining net slip across it, and showing its relationship
Authors
William R. Dickinson, Mihai N. Ducea, Lewis I. Rosenberg, H. Gary Greene, Stephan A. Graham, Joseph C. Clark, Gerald E. Weber, Steven Kidder, W. Gary Ernst, Earl E. Brabb
Assessment of drift stability with consideration of spatial variation of lithophysal cavities at Yucca Mountain
No abstract available.
Authors
M. Lin, Mark P. Board, D.C. Kicker, J. Leem, B. Damjanac, David C. Buesch
Hydrothermal vent fluids, siliceous hydrothermal deposits, and hydrothermally altered sediments in Yellowstone Lake
Stable isotopic (dD and d18O) data indicate about 13% total evaporative concentration has occurred in Yellowstone Lake, yet lake waters are enriched in dissolved As, B, Cl, Cs, Ge, Li, Mo, Sb, and W by at least an order-of-magnitude relative to the flow-weighted composition of inflowing streams. We conclude that lake water is a mixture of inflowing surface water and hydrothermal source fluid that
Authors
W. C. Pat Shanks, Lisa Morgan, Laurie S. Balistrieri, Jeffrey C. Alt
Geology of the proposed Yucca Mountain repository site, Nevada
Yucca Mountain, located about 100 miles northwest of Las Vegas, Nevada, has been recommended by the President for a mined geologic repository for high-level radioactive waste. This field trip will examine the geologic and hydrologic setting for Yucca Mountain, as well as specific results of the site characterization program. The field trip will visit the locations for underground in situ testing i
Authors
John H. Peck, David C. Buesch
Preliminary integrated geologic map databases for the United States - Western states: California, Nevada, Arizona, Washington, Oregon, Idaho, and Utah
No abstract available.
Authors
Steve Ludington, Barry C. Moring, Robert J. Miller, Kathryn Flynn, Melanie J. Hopkins, Paul Stone, David R. Bedford, Gordon A. Haxel
Digital-elevation and surface-classification maps of the Fish Creek area, Harrison Bay quadrangle, northern Alaska
No abstract available.
Authors
John L. Mars, Christopher P. Garrity, David W. Houseknecht, Lee Amoroso, Donald C. Meares
Map showing features and displacements of the Scenic Drive landslide, La Honda, California, during the period March 31-May 7, 2005
No abstract available.
Authors
Ray E. Wells, Michael J. Rymer, Carol S. Prentice, Karen L. Wheeler
Holocene fault scarps and shallow magnetic anomalies along the southern Whidbey Island fault zone near Woodinville, Washington
No abstract available.
Authors
Brian L. Sherrod, Richard J. Blakely, Craig Weaver, Harvey Kelsey, Elizabeth Barnett, Ray Wells
Porphyry copper deposits of the world: database, map, and grade and tonnage models
Mineral deposit models are important in exploration planning and quantitative resource assessments for two reasons: (1) grades and tonnages among deposit types are significantly different, and (2) many types occur in different geologic settings that can be identified from geologic maps. Mineral deposit models are the keystone in combining the diverse geoscience information on geology, mineral occu
Authors
Donald A. Singer, Vladimir Iosifovich Berger, Barry C. Moring
Use of the Biotic Ligand Model to predict metal toxicity to aquatic biota in areas of differing geology
This work evaluates the use of the biotic ligand model (BLM), an aquatic toxicity model, to predict toxic effects of metals on aquatic biota in areas underlain by different rock types. The chemical composition of water, soil, and sediment is largely derived from the composition of the underlying rock. Geologic source materials control key attributes of water chemistry that affect metal toxicity to
Authors
Kathleen S. Smith
Northern Cordillera
No abstract available.
Authors
J.W.H. Monger, Raymond A. Price, Warren J. Nokleberg
Stream-sediment geochemistry in mining-impacted streams: Prichard, Eagle, and Beaver Creeks, northern Coeur d'Alene mining district, northern Idaho
This report presents the results of one aspect of an integrated watershed-characterization study that was undertaken to assess the impacts of historical mining and milling of silver-lead-zinc ores on water and sediment composition and on aquatic biota in streams draining the northern part of the Coeur d'Alene Mining District in northern Idaho. We present the results of chemical analyses of 62 samp
Authors
Stephen E. Box, John C. Wallis, Paul H. Briggs, Zoe Ann Brown