Publications
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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
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Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1978
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, S.P. Tilton
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1978
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, S.P. Tilton
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1978
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, S.P. Tilton
Landslides and related features, Ohio, West Virginia and Pennsylvania [Canton quadrangle] Landslides and related features, Ohio, West Virginia and Pennsylvania [Canton quadrangle]
No abstract available.
Authors
William E. Davies, Gregory C. Ohlmacher, John S. Pomeroy
Estimation of ground motion parameters Estimation of ground motion parameters
Strong motion data from western North America for earthquakes of magnitude greater than 5 are examined to provide the basis for estimating peak acceleration, velocity, displacement, and duration as a function of distance for three magnitude classes. Data from the San Fernando earthquake are examined to assess the effects of associated structures and of geologic site conditions on peak...
Authors
David M. Boore, Adolph A. Oliver, Robert A. Page, William B. Joyner
Historic ground failures in Northern California triggered by earthquakes Historic ground failures in Northern California triggered by earthquakes
A major source of earthquake-related damage and casualties in northern California has been ground failures generated by the seismic shaking, including landslides, lateral spreads, ground settlement, and surface cracks. The historical record shows that, except for offshore shocks, the geographic area affected and the quantity and general severity of ground failures increase markedly with...
Authors
T. Leslie Youd, Seena N. Hoose
Morphology of chasma walls, Mars Morphology of chasma walls, Mars
The landforms developed on the walls of the Valles Marineris system of chasmas are of three major types, which are locally transitional. The most common type is composed of steep spurs and gullies. The dominant process in the formation or modification of this type appears to be the downslope movement of. material under the influence of gravity, resulting in the accumulation of extensive...
Authors
Baerbel K. Lucchitta
Map showing landslides and areas most susceptible to sliding in Beaver Quadrangle and portions of the Beaver Falls and New Galilee quadrangles, Beaver County, Pennsylvania Map showing landslides and areas most susceptible to sliding in Beaver Quadrangle and portions of the Beaver Falls and New Galilee quadrangles, Beaver County, Pennsylvania
No abstract available.
Authors
John S. Pomeroy
Landslides and related features, Ohio, West Virginia and Pennsylvania [Clarksburg quadrangle] Landslides and related features, Ohio, West Virginia and Pennsylvania [Clarksburg quadrangle]
No abstract available.
Authors
Robert J. Hackman, Roger E. Thomas
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 1978
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, S.P. Tilton
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1978
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, S.P. Tilton