Publications
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Geodetic measurement of crustal deformation on the San Andreas, Hayward, and Calaveras faults near San Francisco, California
Analysis of a geodetic network of 115 lines crossing the San Andreas, Hayward, and Calaveras faults in the vicinity of San Francisco Bay and measured repeatedly between 1970 and 1980 has revealed details about the accommodation of relative plate motion in this area. The most striking result is that the deformation is not uniformly distributed across the area. In the east bay, along the Hayward and
Authors
W. H. Prescott, Michael Lisowski, James C. Savage
Synchrotron radiation and its application to digital subtraction angiography
The intense synchrotron radiation produced at electron storage rings provides a new source of X-rays highly suited to iodine K-edge digital subtraction angiography. The high intensity and small angular divergence permit the radiation to be monochromatized by Bragg diffraction and made available in beams of small vertical size, of arbitrary horizontal width, and of tunable energy. The use of such b
Authors
E. Rubenstein, E.B. Hughes, L.E. Campbell, R. Hofstadter, Randolph L. Kirk, T.J. Krolicki, J.P. Stone, S. Wilson, H.D. Zeman, W.R. Brody
Reservoir analysis of the Denver earthquakes: A case of induced seismicity
Injection of fluid wastes into the fractured Precambrian crystalline bedrock beneath the Rocky Mountain Arsenal near Denver triggered earthquakes in the 1960's. An analysis, based on the assumption that fluid flow in the fractured reservoir can be approximated by flow in a porous medium, is presented. The configuration and hydrologic properties of the reservoir are determined from two lines of evi
Authors
Paul A. Hsieh, John D. Bredehoeft
Swash mark and grain flow
Swash marks composed entirely of coarse sand are commonly found on coarse-sand beaches. These swash marks are 10 to 30 centimeters in width and a few millimeters to one centimeter in height. Previous observations, mostly on finer-sand beaches, indicate swash marks are seldom over a few millimeters in height and are commonly composed of material readily floated by surface tension (e.g., mica flakes
Authors
Asbury H. Sallenger,
Prismatic slip of A12O3 single crystals below 1000°C in compression under hydrostatic pressure
Alumina single crystals were compressed perpendicular to the [0001] axis at a constant strain rate between 20° and 950°C. At r>200°C, failure was suppressed by_hydrostatic pressures of 500 to 1500 MPa. Prismatic slip {1120}〈1100〉 was deduced from optical observations of the lateral surfaces and from stress‐optical features in thin sections cut from the specimens. The critical resolved shear stress
Authors
J. Castaing, J. Cadoz, Stephen H. Kirby
IASPEI workshop: Seismic modeling of laterally varying structures
During the past 10 years, significant progress has been made in the methods of collection and analysis of seismic reflection and refraction data. This progress has led to the development of new models for the structure and composition of the earth's crust, based on sophisticated analysis of numerous profiles in many areas of geologic importance. The third triannual meeting of the IASPEI (Internati
Authors
Walter D. Mooney
The paleoenvironment and development of the eastern North American continental margin
No abstract available.
Authors
J. S. Schlee, L.F. Jansa
Obtaining scientific collecting permits in south Florida
No abstract available.
Authors
Eugene A. Shinn
Deep structure and evolution of the continental margin off the eastern United States
No abstract available.
Authors
J. A. Grow, R. E. Sheridan
Satellite observations of a geothermal submarine spring off Florida west coast
No abstract available.
Authors
F. A. Kohout, R.C. Munson, R. M. Turner, W.R. Royal
Seismic stratigraphic characteristics of upper Louisiana continental slope: an area east of Green Canyon
A high-resolution seismic reflection survey was conducted in a small area of the upper Louisiana Continental Slope known as Green Canyon Area. This area includes tracts 427, 428, 471, 472, 515, and 516, that will be offered for sale in March 1982 as part of Lease Sale 67.The sea floor of this region is, slightly hummocky and is underlain by salt diapirs that are mantled by early Tertiary shale. Mo
Authors
Arnold H. Bouma, Mary H. Feeley, Jack L. Kindinger, Charles E. Stelting, Thomas W.C. Hilde