Publications
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Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1982 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: June 1982
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
International Geomagnetic Reference Field 1980: charts and grid values, IAGA Bulletin No. 47 International Geomagnetic Reference Field 1980: charts and grid values, IAGA Bulletin No. 47
No abstract available.
Authors
Eugene B. Fabiano, N.W. Peddie, D.R. Barraclough, A.K. Zunde
Paleomagnetic data from the Coso Range, California and current status of the Cobb Mountain normal geomagnetic polarity event Paleomagnetic data from the Coso Range, California and current status of the Cobb Mountain normal geomagnetic polarity event
Two basalt flows which erupted about 1.08 m.y. ago in the Coso Range, California, have normal magnetic polarity and thus provide additional evidence for the Cobb Mountain normal polarity event. A review of available data confirms that this event was of geomagnetic origin. A mean age of 1.10 ± 0.02 m.y. B.P. for the Cobb Mountain normal polarity event was found to best fit all available...
Authors
Edward A. Mankinen, C. Sherman Gromme
By
A note on transients in the SRO and ASRO long-period data A note on transients in the SRO and ASRO long-period data
Data users have occasionally observed pulse-like transients in the long-period waveforms recorded at the Seismic Research Observatories (SRO) and at the Modified High-Gain Long-Period (ASRO) stations. In a recent paper, Dziewonski et al (1981) reported transients associated with earthquake signals record at some SRO stations, and the authors ascribed these transients to an unpredictable...
Authors
Jon Peterson
International Geomagnetic Reference Field International Geomagnetic Reference Field
In August 1981 the International Association of Geomagnetism and Aeronomy revised the International Geomagnetic Reference Field (IGRF). It is the second revision since the inception of the IGRF in 1968. The revision extends the earlier series of IGRF models from 1980 to 1985, introduces a new series of definitive models for 1965-1975, and defines a provisional reference field for 1975...
Authors
N.W. Peddie
International geomagnetic reference field 1980 International geomagnetic reference field 1980
[No abstract available]
Authors
N.W. Peddie
Huge landslide blocks in the growth of piton de la fournaise, La réunion, and Kilauea volcano, Hawaii Huge landslide blocks in the growth of piton de la fournaise, La réunion, and Kilauea volcano, Hawaii
Piton de la Fournaise, on the island of La Réunion, and Kilauea volcano, on the island of Hawaii, are active, basaltic shield volcanoes growing on the flanks of much larger shield volcanoes in intraplate tectonic environments. Past studies have shown that the average rate of magma production and the chemistry of lavas are quite similar for both volcanoes. We propose a structural...
Authors
Wendell A. Duffield, Laurent Stieltjes, Jacques Varet
Landslides and related features, Kentucky and Tennessee, Corbin 1° x 2° sheet Landslides and related features, Kentucky and Tennessee, Corbin 1° x 2° sheet
No abstract available.
Authors
Alfred R. Taylor, Roger E. Thomas
Preliminary study of methods for upgrading USGS Antarctic seismological capability Preliminary study of methods for upgrading USGS Antarctic seismological capability
The purpose of this study is to evaluate potential methods for obtaining higher quality seismic data from Antarctica. Currently, USGS-sponsored WWSSN stations are located at Scott Base, Sanae Base, and at South Pole Station. Scott and Sanae Stations are located near the coast; data obtained from coastal installations are normally degraded by noise generated by ocean wave action on the...
Authors
L. Gary Holcomb