Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2487
Modelling removal mechanisms of Pb, Cu, Zn and Cd in acidic groundwater during the neutralization by ambient surface and ground waters Modelling removal mechanisms of Pb, Cu, Zn and Cd in acidic groundwater during the neutralization by ambient surface and ground waters
Removal of Pb, Cu, Zn, and Cd during neutralization of acid rock drainage is examined using model simulations of field conditions and laboratory experiments involving mixing of natural drainage and surface waters or groundwaters. The simulations consider sorption onto hydrous Fe and Al oxides and particulate organic carbon, mineral precipitation, and organic and inorganic solution...
Authors
Anthony J. Paulson, Laurie S. Balistrieri
Character of the middle Nonlithophysal Zone of the Topopah Spring Tuff at Yucca Mountain Character of the middle Nonlithophysal Zone of the Topopah Spring Tuff at Yucca Mountain
No abstract available.
Authors
David C. Buesch, R.W. Spengler
Detailed correlation of lithostratigraphic and borehole geophysical log data for identifying contacts at Yucca Mountain Detailed correlation of lithostratigraphic and borehole geophysical log data for identifying contacts at Yucca Mountain
No abstract available.
Authors
David C. Buesch, R.W. Spengler
Geology and regional correlation of the Cretaceous and Paleogene rocks of the Gualala block, northern California Geology and regional correlation of the Cretaceous and Paleogene rocks of the Gualala block, northern California
No abstract available.
Authors
C. M. Wentworth, D. L. Jones, E. E. Brabb
A simplified economic filter for open-pit gold-silver mining in the United States A simplified economic filter for open-pit gold-silver mining in the United States
In resource assessments of undiscovered mineral deposits and in the early stages of exploration, including planning, a need for prefeasibility cost models exists. In exploration, these models to filter economic from uneconomic deposits help to focus on targets that can really benefit the exploration enterprise. In resource assessment, these models can be used to eliminate deposits that...
Authors
Donald A. Singer, W. David Menzie, Keith R. Long
Suppression of large earthquakes by stress shadows: A comparison of Coulomb and rate-and-state failure Suppression of large earthquakes by stress shadows: A comparison of Coulomb and rate-and-state failure
Stress shadows generated by California's two most recent great earthquakes (1857 Fort Tejon and 1906 San Francisco) substantially modified 19th and 20th century earthquake history in the Los Angeles basin and in the San Francisco Bay area. Simple Coulomb failure calculations, which assume that earthquakes can be modeled as static dislocations in an elastic half-space, have done quite...
Authors
Ruth A. Harris, Robert W. Simpson
Geology of the onshore part of San Mateo County, California: A digital database Geology of the onshore part of San Mateo County, California: A digital database
No abstract available.
Authors
E. E. Brabb, R. W. Graymer, D. L. Jones
Late-stage sinking of plutons: Comment and Reply Late-stage sinking of plutons: Comment and Reply
No abstract available.
Authors
Scott R. Paterson, A. F. Glazner, David M. Miller
Tertiary uplift of the Mt. Doonerak antiform, central Brooks Range, Alaska: Apatite fission track evidence from the Trans-Alaska crustal transect Tertiary uplift of the Mt. Doonerak antiform, central Brooks Range, Alaska: Apatite fission track evidence from the Trans-Alaska crustal transect
The Mt. Doonerak antiform is a northeast-trending, doubly plunging antiform located along the axial part of the central Brooks Range. This antiform is a crustal-scale duplex estimated to have a vertical displacement of ~15 km. The antiform folds the Amawk thrust, which separates relatively less displaced lower plate rocks in a window in the core of the antiform from allochthonous upper...
Authors
P. B. O’Sullivan, Thomas E. Moore, J.M. Murphy
Digital geologic map of the Spokane 1:100,000 quadrangle, Washington and Idaho: A digital database for the 1990 N.L. Joseph map Digital geologic map of the Spokane 1:100,000 quadrangle, Washington and Idaho: A digital database for the 1990 N.L. Joseph map
Geologic data from the geologic map of the Spokane 1:100,000-scale quadrangle compiled by Joseph (1990) were entered into a geographic information system (GIS) as part of a larger effort to create regional digital geology for the Pacific Northwest. The map area is located in eastern Washington and extends across the state border into western Idaho (Fig. 1). This open-file report...
Authors
Bruce R. Johnson, Pamela D. Derkey
Drainage from adits and tailings piles in the Coeur d'Alene mining district, Idaho; sampling, analytical methods and results Drainage from adits and tailings piles in the Coeur d'Alene mining district, Idaho; sampling, analytical methods and results
This report contains information about collecting, handling, and analyzing waters draining from adits and seeping from beneath tailings piles in the Coeur d'Alene mining district during August 1996, November 1996, and June 1997. Data include temperature, pH, conductivity, dissolved oxygen, alkalinity, flow, and total acid soluble and dissolved (
Authors
Laurie S. Balistrieri, A. A. Bookstrom, S. E. Box, Mohammed Ikramuddin
Slope failure and shoreline retreat during northern California's latest El Nino Slope failure and shoreline retreat during northern California's latest El Nino
Surface processes accelerated by severe storms during the 1997–1998 El Niño event scoured hillsides and damaged property across coastal California. Technological advances such as digital mapping, exemplified here for the San Francisco Bay area but applicable elsewhere, have enabled government agencies to better describe, monitor, and predict the effects of shoreline erosion and slope...
Authors
S.H. Cannon, S. D. Ellen, S. E. Graham, Russell W. Graymer, Monty A. Hampton, John W. Hillhouse, David G. Howell, Angela S. Jayko, R.L. LaHusen, K.R. Lajoie, R.J. Pike, D.W. Ramsey, M.E. Reid, B. M. Richmond, W. Z. Savage, Carl Wentworth, R. C. Wilson