Publications
Publications from the staff of the Geology, Minerals, Energy, and Geophysics Science Center
Filter Total Items: 2532
Uranium-series ages, faunal correlations and tectonic deformation of marine terraces within the Agua Blanca fault zone at Punta Banda, northern Baja California, Mexico Uranium-series ages, faunal correlations and tectonic deformation of marine terraces within the Agua Blanca fault zone at Punta Banda, northern Baja California, Mexico
No abstract available.
Authors
T. K. Rockwell, D.R. Muhs, G. L. Kennedy, M.E. Hatch, S.M. Wilson, R.E. Klinger
The style of late Cenozoic deformation at the eastern front of the California Coast Ranges The style of late Cenozoic deformation at the eastern front of the California Coast Ranges
The 1983 Coalinga earthquake occurred at the eastern boundary of the California Coast Ranges in response to northeast directed thrusting. Such movements over the past 2 Ma have produced Coalinga anticline by folding above the blind eastern tip of the Coalinga thrust zone. The 600-km length of the Coast Ranges boundary shares a common structural setting that involves westward upturn of...
Authors
Carl M. Wentworth, Mark D. Zoback
Average topography, isostatic residual gravity, and aeromagnetic maps of the Parkfield region, California Average topography, isostatic residual gravity, and aeromagnetic maps of the Parkfield region, California
No abstract available.
Authors
Robert W. Simpson, R.C. Jachens, Carl M. Wentworth
Correlation of Miocene flows of the Columbia River Basalt Group from the central Columbia River Plateau to the coast of Oregon and Washington Correlation of Miocene flows of the Columbia River Basalt Group from the central Columbia River Plateau to the coast of Oregon and Washington
Nearly twenty flows of the Columbia River Basalt Group (CRBG) can be paleomagnetically and chemically correlated westward as far as 500 km from the Columbia Plateau in Washington, through the Columbia Gorge, to the Coast Range of Oregon and Washington. In the Coast Range near Cathlamet, Washington, the CRBG flow stratigraphy includes 10 flows of Grande Ronde Basalt (1 low-MgO R2 flow, 6...
Authors
Ray E. Wells, R.W. Simpson, R. D. Bentley, Melvin H. Beeson, Margaret T. Mangan, Thomas L. Wright
Geologic map and structure sections of the Laurel 7-1/2ʹ quadrangle, Santa Clara and Santa Cruz Counties, California Geologic map and structure sections of the Laurel 7-1/2ʹ quadrangle, Santa Clara and Santa Cruz Counties, California
No abstract available.
Authors
J. C. Clark, E. E. Brabb, R. J. McLaughlin
Minimum earthquake magnitude associated with coseismic surface faulting Minimum earthquake magnitude associated with coseismic surface faulting
No abstract available.
Authors
Manuel G. Bonilla
Metamorphic and tectonic evolution of the Franciscan Complex, northern California: Chapter 38 Metamorphic and tectonic evolution of the Franciscan Complex, northern California: Chapter 38
No abstract available.
Authors
M. Clark Blake, A. S. Jayko, R. J. McLaughlin, M.B. Underwood
New and revised lithostratigraphic units from the southwestern New England Fold Belt New and revised lithostratigraphic units from the southwestern New England Fold Belt
New and revised lithostratigraphic units are recognized in northern New South Wales. New lithostatigraphic units are: Cara Formation, Whitlow Formation, Bobs Creek Formation, Nangahrah Formation, and Dinoga Formation. Revision of the Woolomin beds to Woolomin Group and Woodsreef Melange is proposed.
Authors
M. Clark Blake, B. Murchey
Pb isotopic evidence for the formation of Proterozoic crust in the southwestern United States Pb isotopic evidence for the formation of Proterozoic crust in the southwestern United States
No abstract available.
Authors
J. L. Wooden, J. S. Stacey, Keith A. Howard, B. R. Doe, D. M. Miller
Comment and reply on "Sediment-yield history of a small basin in southern Utah, 1937-1976: Implications for land management and geomorphology" Comment and reply on "Sediment-yield history of a small basin in southern Utah, 1937-1976: Implications for land management and geomorphology"
No abstract available.
Authors
E.B. Nuhfer, Richard Hereford
Comment and reply on "Bacterially mediated diagenetic origin for chert-hosted manganese deposits in the Franciscan Complex, California Coast Ranges" Comment and reply on "Bacterially mediated diagenetic origin for chert-hosted manganese deposits in the Franciscan Complex, California Coast Ranges"
No abstract available.
Authors
Loren A. Raymond, James R. Hein, Randolph A. Koski
Integrating spatial and frequency information in the search for kuroko deposits of the Hokuroku District, Japan Integrating spatial and frequency information in the search for kuroko deposits of the Hokuroku District, Japan
A new method (FINDER) that uses the area of influence and Bayesian statistics to aid in selection of target areas on the basis of one or more variables and multiple observations was tested with drill hole data. A previously defined bimodal distribution of Na 2 O with the low sodium group confined to a 1.5 X 3.0-km zone beneath the cluster of deposits at Fukazawa was used as a control...
Authors
Donald A. Singer, Ryoichi Kouda