Publications
Here you will find publications, reports and articles produced by geology, energy, and mineral scientists. For a comprehensive listing of all USGS publications, click the button below.
Filter Total Items: 1427
Evidence for tectonic movement of the Las Positas Fault, Alameda County, California Evidence for tectonic movement of the Las Positas Fault, Alameda County, California
On October 29, 1979, a new exposure of the Las Positas fault zone near Livermore, California, was created by excavation of a creek bank along Arroyo Seco. The face of the bank was cleaned by geologists of Lawrence Livermore Laboratory (Livermore, California) to obtain a better and more complete view of the fault. The excavation was undertaken by Lawrence Livermore Laboratory as part of a...
Authors
Darrell G. Herd, Earl E. Brabb
Early Cretaceous metamorphic age of the South Fork Mountain Schist in the northern Coast Ranges of California Early Cretaceous metamorphic age of the South Fork Mountain Schist in the northern Coast Ranges of California
No abstract available.
Authors
Marvin A. Lanphere, M. Clark Blake, W. P. Irwin
Neogene basin formation in relation to plate tectonic evolution of San Andreas fault system, California Neogene basin formation in relation to plate tectonic evolution of San Andreas fault system, California
More than 90% of the known petroleum accumulations west of the San Andreas fault in California are in strata deposited in areally restricted Neogene basins that formed during a major tectonic reorganization of western California. These deep, localized Neogene basins replaced broad, regionally persistent Paleogene depositional aprons, although some of the Neogene basins in northern and...
Authors
Blake, R. H. Campbell, T. W. Dibblee, D. G. Howell, Tor H. Nilsen, W. R. Normark, J. G. Vedder, E. A. Silver
Apollo over the Moon: A view from orbit Apollo over the Moon: A view from orbit
No abstract available.
Authors
Harold Masursky, G. W. Colton, Farouk El-Baz, Frederick J. Doyle, Richard E. Eggleton, Maurice J. Grolier, James W. Head, Carroll Ann Hodges, Keith A. Howard, Leon J. Kosofsky, Baerbel K. Lucchitta, Michael C. McEwen, Henry J. Moore, Gerald G. Schaber, David H. Scott, Laurence A. Soderblom, Mareta West, D.E. Wilhems
Stratigraphic contrasts across the San Gregorio fault, Santa Cruz Mountains, west-central California Stratigraphic contrasts across the San Gregorio fault, Santa Cruz Mountains, west-central California
No abstract available.
Authors
J. C. Clark, E. E. Brabb
Examples of seismic zonation in the San Francisco Bay region Examples of seismic zonation in the San Francisco Bay region
No abstract available.
Authors
W. J. Kockelman, E. E. Brabb
Circum-Pacific Conference included the environment Circum-Pacific Conference included the environment
No abstract available.
Authors
E. E. Brabb, T. L. Wright
Preliminary geologic map of Alaska Preliminary geologic map of Alaska
No abstract available.
Authors
Helen M. Beikman
Geomagnetic paleointensities from radiocarbon‐dated lava flows on Hawaii and the question of the Pacific nondipole low Geomagnetic paleointensities from radiocarbon‐dated lava flows on Hawaii and the question of the Pacific nondipole low
Radiocarbon ages have been published for nine basaltic lava flows on the island of Hawaii; the ages range from 2600 to somewhat older than 17,900 years B.P. By using the Thelliers' method in vacuum, geomagnetic paleointensity values were obtained from eight of the lavas; the ninth proved unsuitable. The paleointensities for the four youngest flows (2600–4600 years B.P.) yield virtual...
Authors
Robert S. Coe, Sherman Gromme, Edward A. Mankinen
Geomagnetic polarity event recorded at 1.1 m.y. B.P. on Cobb Mountain, Clear Lake volcanic field, California Geomagnetic polarity event recorded at 1.1 m.y. B.P. on Cobb Mountain, Clear Lake volcanic field, California
Paleomagnetic studies show that a normal polarity event within the Matuyama reversed polarity epoch is recorded by one of the volcanic units on Cobb Mountain in northern California. K-Ar age determinations show that this event has an age of 1.12 ± 0.02 m.y. and clearly preceded the Jaramillo normal polarity event. These data provide the first confirmation from a subaerial volcano that a...
Authors
Edward A. Mankinen, J.M. Donnelly, C. S. Grommé
Distribution and character of upper Mesozoic subduction complexes along the west coast of North America Distribution and character of upper Mesozoic subduction complexes along the west coast of North America
Structurally complex sequences of sedimentary, volcanic, and intrusive igneous rocks characterize a nearly continuous narrow band along the Pacific coast of North America from Baja California, Mexico to southern Alaska. They occur in two modes: (1) as complexly folded but coherent sequences of graywacke and argillite that locally exhibit blueschist-grade metamorphism, and (2) as melanges
Authors
D. L. Jones, M.C. Blake, E. H. Bailey, R. J. McLaughlin