Publications
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Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1977 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1977
The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
J.B. Townshend, J.E. Papp, M.J. Moorman, C.E. Deadmon, S.P. Tilton
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1977 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1977
The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
J.B. Townshend, J.E. Papp, M.J. Moorman, C.E. Deadmon, S.P. Tilton
The landslide hazard in the San Francisco Bay region The landslide hazard in the San Francisco Bay region
Development in hilly or mountainous terrain has resulted in much landslide damage. Areas susceptible to landsliding can be recognized. Practices for minimizing landslides are presented.
Authors
E. E. Brabb
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: May 1977 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: May 1977
The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
J.B. Townshend, J.E. Papp, M.J. Moorman, C.E. Deadmon, S.P. Tilton
Summary of results of frictional sliding studies, at confining pressures up to 6.98 kb, in selected rock materials Summary of results of frictional sliding studies, at confining pressures up to 6.98 kb, in selected rock materials
This report is a collection of stress-strain charts which were produced by deforming selected simuiated fault gouge materials. Several sets of samples consisted of intact cylinders, 1.000 inch in diameter and 2.500 inches long. The majority of the samples consisted of thin layers of the selected sample material, inserted within a diagonal sawcut in a 1.000-inch by 2.500-inch Westerly...
Authors
R. Summers, J. Byerlee
Preseismic and coseismic deformation associated with the Hollister, California, earthquake of November 28, 1974 Preseismic and coseismic deformation associated with the Hollister, California, earthquake of November 28, 1974
The epicenter of the Hollister earthquake (ML = 5.1) of November 28, 1974, is located near the center of an 81‐line trilateration network which has been surveyed annually since 1971. Five lines in the neighborhood of the epicenter were surveyed just 2 days before the earthquake, and two other lines nearby were surveyed 48 days earlier. Although some of these measurements suggest a...
Authors
James C. Savage, Mary Ann Spieth, W.H. Prescott
Strain accumulation on the San Andreas Fault near Palmdale, California Strain accumulation on the San Andreas Fault near Palmdale, California
Precise distance measurements of a 10×25 km 15‐station trilateration network that spans the San Andreas fault west of Palmdale, California, have been repeated annually in the period 1971–1975. The network appears to be deforming under simple uniform tensor shear of about 0.21±0.03 μstrain/yr with the direction of maximum right‐lateral shear parallel to the local strike of the San Andreas...
Authors
W.H. Prescott, James C. Savage
Evidence of post-Pleistocene faults on New Jersey Atlantic outer continental shelf Evidence of post-Pleistocene faults on New Jersey Atlantic outer continental shelf
Recently obtained high-resolution seismic profiles (400-4,000-Hz band) show evidence of faults in shallow sedimentary strata near the edge of the Atlantic continental shelf off New Jersey. Apparent normal faults having a throw of about 1.5 m displace sediments to within 7 m of the sea floor. The faults appear to be overlain by undeformed horizontal beds of relatively recent age. Several...
Authors
R. E. Sheridan, H.J. Knebel
Sclerochronology: a tool for interpreting past environments Sclerochronology: a tool for interpreting past environments
X-radiographs of stony coral slabs reveal two types of annual density bands. Detailed studies of these bands in relation to known variations in air temperatures indicate that sclerochronology is a valid tool for documenting time sequences and changing environmental conditions on a coral reef.
Authors
J. Harold Hudson, Eugene A. Shinn, Robert B. Halley, Barbara H. Lidz