Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2486
Lead isotopic fingerprinting of tectono-stratigraphic terranes, east-central Alaska Lead isotopic fingerprinting of tectono-stratigraphic terranes, east-central Alaska
Common lead isotopic compositions have been determined on feldspars from meta-igneous rocks from nine tectono-stratigraphic terranes or subterranes in east-central Alaska. Most of the terranes have distinct and well-defined signatures in terms of isotopic composition; thus, most can be distinguished on conventional lead isotopic diagrams. Lead isotopic ratios provide evidence for (1)...
Authors
John N. Aleinikoff, Cynthia Dusel-Bacon, Helen Laura Foster, Warren J. Nokleberg
Inhibition of aqueous copper and lead adsorption onto goethite by dissolved carbonate species Inhibition of aqueous copper and lead adsorption onto goethite by dissolved carbonate species
No abstract available.
Authors
Kathleen S. Smith, D. Langmuir
Geologic map of the Redding 1 x 2 degree quadrangle, Shasta, Tehama, Humboldt, and Trinity Counties, California Geologic map of the Redding 1 x 2 degree quadrangle, Shasta, Tehama, Humboldt, and Trinity Counties, California
No abstract available.
Authors
Luis A. Fraticelli, J. P. Albers, W. P. Irwin, M.C. Blake
Abstracts of papers presented at the Geographic information systems symposium, June 2-4, 1987, Reston, Virginia Abstracts of papers presented at the Geographic information systems symposium, June 2-4, 1987, Reston, Virginia
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
New evidence on the state of stress of the San Andreas fault system New evidence on the state of stress of the San Andreas fault system
Contemporary in situ tectonic stress indicators along the San Andreas fault system in central California show northeast-directed horizontal compression that is nearly perpendicular to the strike of the fault. Such compression explains recent uplift of the Coast Ranges and the numerous active reverse faults and folds that trend nearly parallel to the San Andreas and that are otherwise...
Authors
Mark D. Zoback, M.L. Zoback, S. Van Mount, J. Suppe, J. P. Eaton, J. H. Healy, D. Oppenheimer, P. Reasenberg, L. Jones, C.B. Raleigh, I.G. Wong, O. Scotti, C. Wentworth
Implications of the northwestwardly younger age of the volcanic rocks of west-central California: Alternative Interpretation Implications of the northwestwardly younger age of the volcanic rocks of west-central California: Alternative Interpretation
Fox and others (1985) have made an important contribution to our understanding of iihe evolution of the Mendocino triple junction and the San Andreas transform. They have summarized a large amount of data on the ages and distribution of volcanic centers along the central California coast; their summary clearly shows that the locus of volcanism migrated northwestward along the coast...
Authors
Richard G. Stanley
The Steens Mountain (Oregon) geomagnetic polarity transition: 3. Its regional significance The Steens Mountain (Oregon) geomagnetic polarity transition: 3. Its regional significance
Study of the variations of direction and intensity of the geomagnetic field as recorded by the Miocene lava flows on Steens Mountain, southeastern Oregon, has resulted in a detailed description of total field behavior during a reversal in polarity. In addition to information about the polarity reversal itself, the detailed paleomagnetic record includes several thousand years of...
Authors
E. A. Mankinen, E.E. Larson, C. S. Grommé, M. Prevot, R. S. Coe
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New estimates of displacement along the San Andreas fault in central California based on paleobathymetry and paleogeography New estimates of displacement along the San Andreas fault in central California based on paleobathymetry and paleogeography
Studies of depth-related benthic foraminiferal biofacies permit the construction of paleobathymetric maps of the La Honda and San Joaquin basins of central California. These maps support the hypothesis that the La Honda and San Joaquin basins were contiguous during the late Oligocene and early Miocene and subsequently were separated by about 320–330 km of right-lateral displacement on...
Authors
Richard G. Stanley
A two-water model of aluminum mobilization and immobilization in a natural soil system A two-water model of aluminum mobilization and immobilization in a natural soil system
No abstract available.
Authors
Isabelle M. Cozzarelli