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Preliminary photointerpretation maps of landslide and other surficial deposits of 56 7 1/2-minute quadrangles in the southeastern San Francisco Bay region, Alameda, Contra Costa, and Santa Clara counties, California Preliminary photointerpretation maps of landslide and other surficial deposits of 56 7 1/2-minute quadrangles in the southeastern San Francisco Bay region, Alameda, Contra Costa, and Santa Clara counties, California
No abstract available.
Authors
Tor Helge Nilsen, J. A. Bartow, V. A. Frizzell, J.D. Sims
The orthoenstatite to clinoenstatite transformation by shearing and reversion by annealing: Mechanism and potential applications The orthoenstatite to clinoenstatite transformation by shearing and reversion by annealing: Mechanism and potential applications
Clinoenstatite (CE) was produced by deforming single-crystal specimens of ortho-enstatite (OE) in several different sorta of experiments. Examination with light and trans-mission electron microscopes shows that the transformation is coherent and involves a macroscopic shear on (100) [001] through an angle of 12.8±1.3 °, in good agreement with the theoretically expected value of 13.3 °...
Authors
R. S. Coe, Stephen H. Kirby
Reconnaissance landslide map of parts of Marin and Sonoma counties, California Reconnaissance landslide map of parts of Marin and Sonoma counties, California
No abstract available.
Authors
Carl M. Wentworth, Virgil A. Frizzell
By
Geology, Energy, and Minerals Mission Area, Natural Hazards Mission Area, Energy Resources Program, Landslide Hazards Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geologic Hazards Science Center, Geology, Minerals, Energy, and Geophysics Science Center
Notes on some experiments on the application of subtractive compensation to USGS seismic magnetic tape recording and playback systems Notes on some experiments on the application of subtractive compensation to USGS seismic magnetic tape recording and playback systems
The purpose of these experiments is to lay the groundwork for the implementation of subtractive compensation of the USGS seismic network tape playbacks utilizing the Develco model 6203 discriminators at a x1 playback speed. Although the Develco discriminators were designed for this application and a matching Develco compensation discriminator was purchased, effective use of this system...
Authors
Jerry P. Eaton
Seismic profiles of the offshore Gulf of Alaska Tertiary Province, R/V Thompson, Sept.-Oct. 1974 Seismic profiles of the offshore Gulf of Alaska Tertiary Province, R/V Thompson, Sept.-Oct. 1974
No abstract available.
Authors
Roland E. von Huene, B. F. Molnia, T.R. Bruns, P.R. Carlson
Peritidal lithologies of Cambrian carbonate islands, Carrara Formation, southern Great Basin Peritidal lithologies of Cambrian carbonate islands, Carrara Formation, southern Great Basin
The Carrara Formation is a heterogeneous sequence of quartzites, siltstones, shales, limestones, dolostones, and mixed terrigenous-carbonate rocks. It is Early and Middle Cambrian in age (Stewart, 1970; Palmer, 1971). Figure 32-1 illustrates the general distribution of Carrara lithologies along a transect approximately normal to depositional strike (Fig. 32-2). The formation contains...
Authors
Robert B. Halley
Apollo 12 voice transcript pertaining to the geology of the landing site Apollo 12 voice transcript pertaining to the geology of the landing site
This document is an edited record of the conversations between the Apollo 12 astronauts and mission control pertaining to the geology of the landing site. It contains all discussions and observations documenting the lunar landscape, its geologic characteristics, the rocks and soils collected, and the lunar surface photographic record along with supplementary remarks essential to the...
Authors
N. G. Bailey, G. E. Ulrich
Probable effects of the Leviathan Creek basin landslide, Alpine County, California Probable effects of the Leviathan Creek basin landslide, Alpine County, California
No abstract available.
Authors
Patrick A. Glancy, T.J. Katzer
Influence of rainfall and ancient landslide deposits on recent landslides (1950-71) in urban areas of Contra Costa County, California Influence of rainfall and ancient landslide deposits on recent landslides (1950-71) in urban areas of Contra Costa County, California
No abstract available.
Authors
Tor Helge Nilsen, Barbara L. Turner
The 1959 Hebgen Lake, Montana, earthquake: Two geological points of view The 1959 Hebgen Lake, Montana, earthquake: Two geological points of view
No abstract available.
Authors
Irving J. Witkind
Earthquake mechanism and displacement fields close to fault zones: Report on the Sixth GEOP Research Conference Earthquake mechanism and displacement fields close to fault zones: Report on the Sixth GEOP Research Conference
The Sixth Geodesy/Solid Earth and Ocean Physics (GEOP) Research Conwas held on February 4–5, 1974, at the Institute of Geophysics and Planetary Physics, University of California, San Diego, in La Jolla, California. It was attended by about 100 persons. James N. Brune, program chairman, opened the conference and delivered the introductory address, a somewhat extended version of which is...
Authors
Craig R. Allen, Jon Berger, Ivan I. Mueller, James C. Savage, J. Weertman
Geodetic determination of strain at the Nevada Test Site following the Handley event Geodetic determination of strain at the Nevada Test Site following the Handley event
Repeated surveys of a trilateration network (aperture greater than 20 km) centered on ground zero for the HANDLEY event, a nuclear explosion at the Nevada Test Site with yield in excess of 1 megaton, suggest that the explosion induced an east-west extension of the network by more than 50 mm. In the year following the detonation, this deformation reversed such that the final configuration
Authors
James C. Savage, W. T. Kinoshita, W.H. Prescott