Publications
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Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1983
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
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1983
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
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: February 1983
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
John B. Townshend, J.E. Papp, E.A. Sauter, T.K. Cunningham, L.Y. Torrence
Landslide investigations, southern Cianjur Regency, West Java Province, Indonesia; a progress report
Two landslide-monitoring sites have been established for a minimum 2-year investigation near the villages of Pasirpari and Cibacang in southern Cianjur Regency, West Java, Indonesia. Surveyed-in lines will measure amounts of surface movement and tilt, borings that produced exploratory cores now serve as slip-surface detectors and open-pipe piezometers, and rain gages will record rainfall at both s
Authors
John R. Ege
A new event detector designed for the Seismic Research Observatories
A new short-period event detector has been implemented on the Seismic Research Observatories. For each signal detected, a printed output gives estimates of the time of onset of the signal, direction of the first break, quality of onset, period and maximum amplitude of the signal, and an estimate of the variability of the background noise. On the SRO system, the new algorithm runs ~2.5x faster than
Authors
James N. Murdock, Charles R. Hutt
Landslides and related ground failures from the May 2, 1983, Coalinga, California earthquake
No abstract available
Authors
E. L. Harp, R. C. Wilson, D. K. Keefer
International geomagnetic reference field 1980; charts and grid values
No abstract available.
Authors
Eugene B. Fabiano, N. W. Peddie, D.R. Barraclough, A. K. Zunde
Patterns of sediment concentration in hyperconcentrated flows at Mount St. Helens
No abstract available.
Authors
Randy L. Dinehart
Summaries of technical reports, volume XVII
The research results described in the following summaries were submitted by
the investigators on October 20, 1983 and cover the 6-month period from
April 1, 1983 through September 30, 1983. These reports include both work
performed under contracts administered by the Geological Survey and work by
members of the Geological Survey. The report summaries are grouped into the
four major elements o
Authors
Muriel L. Jacobson
Distribution and costs of landslides in San Diego County, California, during the rainfall years of 1978-79 and 1979-80
No abstract available.
Authors
Clement F. Shearer, Fred A. Taylor, Robert W. Fleming
High paleointensities of the geomagnetic field from thermomagnetic studies on rift valley pillow basalts from the Mid- Atlantic Ridge
Nineteen pillow basalts dredged within the rift valley of the Mid-Atlantic Ridge at36.8°N were studied by the Thellier stepwise heating method in order to determine the paleointensity of the geomagnetic field when they erupted on to the sea floor. Previously reported fission track ages are 2,000 to 6,000 years for the youngest rocks (mainly olivine basalts) and 10,000 to 100,000 years for the othe
Authors
M. Prevot, E. A. Mankinen, S. Gromme, A. Lecaille
Crustal structure of the northern mississippi embayment and a comparison with other continental rift zones
Previous geological and geophysical investigations have suggested that the Mississippi Embayment is the site of a Late Precambrian continental rift that was reactivated in the Mesozoic. New information on the deep structure of the northern Mississippi Embayment, gained through an extensive seismic refraction survey, supports a rifting hypothesis. The data indicate that the crust of the Mississippi
Authors
Walter D. Mooney, M.C. Andrews, A. Ginzburg, D.A. Peters, R. M. Hamilton