Publications
Browse recent USGS publications related to energy resources.
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Preliminary tectonostratigraphic terrane map of California Preliminary tectonostratigraphic terrane map of California
No abstract available.
Authors
M.C. Blake, D. G. Howell, David Lawrence Jones
Paleomagnetic data from the Coso Range, California and current status of the Cobb Mountain normal geomagnetic polarity event Paleomagnetic data from the Coso Range, California and current status of the Cobb Mountain normal geomagnetic polarity event
Two basalt flows which erupted about 1.08 m.y. ago in the Coso Range, California, have normal magnetic polarity and thus provide additional evidence for the Cobb Mountain normal polarity event. A review of available data confirms that this event was of geomagnetic origin. A mean age of 1.10 ± 0.02 m.y. B.P. for the Cobb Mountain normal polarity event was found to best fit all available...
Authors
Edward A. Mankinen, C. Sherman Gromme
By
Evaluation of potential surface faulting and other tectonic deformation Evaluation of potential surface faulting and other tectonic deformation
No abstract available.
Authors
M. G. Bonilla
Post 12 m.y. rotation of southwest Washington Post 12 m.y. rotation of southwest Washington
Paleomagnetic field directions from the basalt of Pack Sack Lookout are compared to those from the Pomona Member of the Saddle Mountains Basalt of the Columbia River Basalt Group. The Pomona crops out over a wide region on the Columbia Plateau east of the Cascade Range, and the basalt of Pack Sack Lookout crops out well to the west of the Cascades about 30 to 60 km east of the Washington...
Authors
James R. Magill, Ray E. Wells, Robert W. Simpson, Allan Cox
Tectonic accretion of the Klamath Mountains Tectonic accretion of the Klamath Mountains
No abstract available.
Authors
W. P. Irwin
A geologic reconnaissance of the Cycladic blueschist belt, Greece A geologic reconnaissance of the Cycladic blueschist belt, Greece
The Cycladic blueschist belt consists of two distinctive segments separated by a broad zone of superposed granitic and high-temperature metamorphic rocks. The northern segment contains early metamorphic fold axes and parallel glaucophane lineations that trend ∼060° with a progressive increase in metamorphism toward the southeast. The southern segment contains similar fold axes and...
Authors
M. Clark Blake, Michel Bonneau, Jacques Geyssant, J.R. Kienast, Claude Lepvrier, Henri Maluski, Dimitrios Papanikolaou
Mid-Cretaceous radiolarians in Perapedhi Formation Mid-Cretaceous radiolarians in Perapedhi Formation
No abstract available.
Authors
W. P. Irwin, B.L. Murchey, D. L. Jones, S.A. Kling
Geology of a subduction complex in the Franciscan assemblage of northern California Geology of a subduction complex in the Franciscan assemblage of northern California
No abstract available.
Authors
M. Clark Blake, A. S. Jayko, D. G. Howell
Seismic zonation in the San Francisco Bay region Seismic zonation in the San Francisco Bay region
No abstract available.
Authors
E. E. Brabb
In the southwest: Tectonic evolution reviewed In the southwest: Tectonic evolution reviewed
No abstract available.
Authors
D. M. Miller, Keith A. Howard, M. D. Carr
Geologic transect of the northern Diablo Range, California Geologic transect of the northern Diablo Range, California
No abstract available.
Authors
M. Clark Blake