Publications
Here you will find publications, reports and articles produced by Energy and Mineral scientists. For a comprehensive listing of all USGS publications, click the button below.
Filter Total Items: 1318
Implications of paleomagnetism for the tectonic history of the Eastern Klamath and related terranes in California and Oregon Implications of paleomagnetism for the tectonic history of the Eastern Klamath and related terranes in California and Oregon
Paleomagnetic study of Permian to Jurassic volcanic and sedimentary strata of the Eastern Klamath terrane has shown the remanent magnetism of these rocks to be prefolding and primary. The Permian and Triassic rocks are both indicated to have rotated 100° clockwise, while the Jurassic strata have rotated 60° clockwise. The respective amounts of rotation for Permian and Jurassic strata are...
Authors
Edward A. Mankinen, William P. Irwin, C. Sherman Gromme
Correlation of metamorphosed Paleozoic strata of the southeastern Mojave Desert region, California and Arizona Correlation of metamorphosed Paleozoic strata of the southeastern Mojave Desert region, California and Arizona
Isolated outcrops of deformed, regionally metamorphosed Paleozoic strata are scattered within the southeastern Mojave Desert region of California and western Arizona. These strata unconformably overlie a basement of Proterozoic crystalline rocks and are overlain in turn by metamorphosed Mesozoic sedimentary rocks. The strata can be correlated lithostratigraphically with the classic...
Authors
Paul Stone, Keith A. Howard, Warren Hamilton
New data on the age of Lepidocyclina in California New data on the age of Lepidocyclina in California
During the 1930's and early 1940's, controversy about the age of Lepidocyclina californica and faunas associated with it led to unreconcilable differences of opinion in the attempt to provide a standard stratigraphic framework for Cenozoic rocks of western North America. Two standards with significantly different series age assignments were provided, one based largelyon benthic...
Authors
E. E. Brabb, Kristen McDougall, R.Z. Poore
Review of "Orogeny," Miyashiro, A., Aki, K., and Sengor, A. M. C., eds., Wiley Review of "Orogeny," Miyashiro, A., Aki, K., and Sengor, A. M. C., eds., Wiley
No abstract available.
Authors
William P. Irwin
Introduction Introduction
Tectonic and Stratigraphic Studies in the Eastern Great Basin is compiled as a tribute to Max D. Crittenden, Jr., whose geologic leadership and exemplary studies in the eastern Great Basin region have stimulated significant scientific advances. Many of the authors in this volume conducted their studies with assistance from Max, and much of the foundation for these studies is his work on...
Authors
D. M. Miller, Keith A. Howard
Conodonts of the western Paleozoic and Triassic belt, Klamath Mountains, California and Oregon Conodonts of the western Paleozoic and Triassic belt, Klamath Mountains, California and Oregon
Conodonts were extracted from 32 samples of limestone and 5 samples of chert obtained from the Western Paleozoic and Triassic belt of the Klamath Mountains province. Triassic conodonts were found in 17 samples, and late Paleozoic conodonts in 7 samples. Conodonts of the remaining 13 samples cannot be dated more closely than early or middle Paleozoic through Triassic. The late Paleozoic...
Authors
William P. Irwin, Bruce R. Wardlaw, T.A. Kaplan
The ophiolitic North Fork terrane in the Salmon River region, central Klamath Mountains, California The ophiolitic North Fork terrane in the Salmon River region, central Klamath Mountains, California
The North Fork terrane is an assemblage of ophiolitic and other oceanic volcanic and sedimentary rocks that has been internally imbricated and folded. The ophiolitic rocks form a north-trending belt through the central part of the region and consist of a disrupted sequence of homogeneous gabbro, diabase, massive to pillowed basalt, and interleaved tectonitic harzburgite. U-Pb zircon age...
Authors
C.J. Ando, W. P. Irwin, D. L. Jones, J.B. Saleeby
Tectonic significance of Late Paleozoic to Jurassic radiolarians from the North Fork terrane, Klamath Mountains, California Tectonic significance of Late Paleozoic to Jurassic radiolarians from the North Fork terrane, Klamath Mountains, California
No abstract available.
Authors
Charles D. Blome, William P. Irwin
Studies related to the Charleston, South Carolina, earthquake of 1886 — Tectonics and seismicity Studies related to the Charleston, South Carolina, earthquake of 1886 — Tectonics and seismicity
Since 1973, the U.S. Geological Survey (USGS), with support from the Nuclear Regulatory Commission, has conducted extensive investigations of the tectonic and seismic history of the Charleston, S.C., earthquake zone and surrounding areas. The goal of these investigations has been to discover the cause of the large intraplate Charleston earthquake of 1886, which dominates the record of...
Authors
David Gottfried, C. S. Annell, G. R. Byerly, Marvin A. Lanphere, Jeffrey D. Phillips, Gregory S. Gohn, Brenda B. Houser, Ray R. Schneider, Hans D. Ackermann, B. R. Yantis, John K. Costain, F. Steve Schilt, Larry Brown, Jack E. Oliver, Sidney Kaufman, Robert Morrison Hamilton, John C. Behrendt, V. James Henry, Kenneth C. Bayer, David L. Daniels, Isidore Zietz, Peter Popenoe, T. M. Chowns, C. T. Williams, Robert E. Dooley, J. Wampler, William P. Dillon, Kim D. Klitgord, Charles K. Paull, Lyle D. McGinnis, James W. Dewey, Arthur C. Tarr, Susan Rhea, Carl M. Wentworth, Marcia Mergner-Keefer, G. A. Bollinger
Studies in Tertiary stratigraphy of the California Coast Ranges Studies in Tertiary stratigraphy of the California Coast Ranges
The correlation of rocks of Paleogene age in California with those in Europe has had a long and complex history that can only be highlighted here. Kleinpell (1938, p. 168-181), in his classic work defining Miocene benthic1 foraminiferal stages of California, attempted to correlate faunas of California with those of western Europe and elsewhere. He pointed out that rocks usually...
Summary of workshops concerning regional seismic source zones of parts of the conterminous United States, convened by the U.S. Geological Survey, 1979-1980, Golden, Colorado Summary of workshops concerning regional seismic source zones of parts of the conterminous United States, convened by the U.S. Geological Survey, 1979-1980, Golden, Colorado
Workshops were convened by the U.S. Geological Survey to obtain the latest information and concepts relative to defining seismic source zones for five regions of the United States. The zones, with some modifications, have been used in preparation of new national probabilistic ground motion hazard maps by the U.S. Geological Survey. The five regions addressed are the Great Basin, the...
Authors
P.C. Thenhaus, F. A. McKeown, R.C. Bucknam, D. C. Ross, R.E. Anderson, W. P. Irwin, D. P. Russ, W.H. Diment
Geologic and geochronologic reconnaissance of the Turtle Mountains area, California: West border of the Whipple Mountains detachment terrane Geologic and geochronologic reconnaissance of the Turtle Mountains area, California: West border of the Whipple Mountains detachment terrane
No abstract available.
Authors
Keith A. Howard, Paul Stone, M.A. Pernokas, R. F. Marvin