Publications
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Landslides and related features, Pennsylvania: Warren 1° x 2° sheet Landslides and related features, Pennsylvania: Warren 1° x 2° sheet
No abstract available.
Authors
John S. Pomeroy
Goals, strategies, priorities, and tasks of a national landslide hazard-reduction program Goals, strategies, priorities, and tasks of a national landslide hazard-reduction program
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
Small landslide types and controls in glacial deposits: Lower Skagit river drainage, northern cascade range, Washington Small landslide types and controls in glacial deposits: Lower Skagit river drainage, northern cascade range, Washington
Observations of 167 small, shallow landslides spanning a 22-year period on extensively logged slopes of Quaternary terraces in the lower Skagit and Baker Valleys, Washington, shows that there is a relationship between the common slope failures in this area and the slope angle, stratigraphy, and logging practices. Landslide frequency increases upvalley, as do mean annual precipitation and...
Authors
P.L. Heller
Morphology and processes associated with the accumulation of the fine-grained sediment deposit on the southern New England shelf Morphology and processes associated with the accumulation of the fine-grained sediment deposit on the southern New England shelf
A 13,000 km2 area of the southern New England Continental Shelf which is covered by anomalously fine-grained sediment has been surveyed by means of high-resolution, seismic-reflection and side-scan sonar techniques to map its morphology and structure, and a near-bottom instrument system contributed to understanding present activity of the deposit. Seismic-reflection profiles show that...
Authors
David C. Twichell, Charles E. McClennen, Bradford Butman
Earth fissures and localized differential subsidence Earth fissures and localized differential subsidence
Long linear tension cracks associated with declining groundwater levels at four sites in subsiding areas in south-central Arizona, Fremont Valley, California, and Las Vegas Valley, Nevada, occur near points of maximum convex-upward curvature in subsidence profiles oriented perpendicular to the cracks. Profiles are based on repeated precise vertical control surveys of lines of closely...
Authors
Thomas L. Holzer, Earl H. Pampeyan
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1981 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1981
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
Ridges and scarps in the equatorial belt of Mars Ridges and scarps in the equatorial belt of Mars
The morphology and distribution of ridges and scarps on Mars in the ± 30° latitude belt were investigated. Two distinct types of ridges were recognized. The first is long and linear, resembling mare ridges on the Moon; it occurs mostly in plains areas. The other is composed of short, anastomosing segments and occurs mostly in ancient cratered terrain and intervening plateaus. Where...
Authors
Baerbel K. Lucchitta, J.L. Klockenbrink
Sidescan-sonar data collected during May 1978 from the southern New England continental shelf Sidescan-sonar data collected during May 1978 from the southern New England continental shelf
Sidescan-sonar data were collected aboard R/V WESTWARD (Cruise W-39-4) during May 1978 by the U.S. Geological Survey using an Ocean Research Equipment System. Navigation in the study area was by Loran C. The 368 kilometers of survey were conducted in Block Island Sound, in Rhode Island Sound, and over the mid-Continental Shelf south of Block Island and Martha's Vineyard. Although the...
Authors
Charles E. McClennen
Transcription of geomagnetic variation data from sea data cassettes to tape using the HP9640A Transcription of geomagnetic variation data from sea data cassettes to tape using the HP9640A
No abstract available.
Authors
David V. Fitterman
Proceedings of Conference XIII, evaluation of regional seismic hazards and risk Proceedings of Conference XIII, evaluation of regional seismic hazards and risk
The participants in the conference concluded that a great deal of useful research has been performed in the national Earthquake Hazards Reduction Program by USGS and non-USGS scientists and engineers and that the state-of-knowledge concerning the evaluation of seismic hazards and risk has been advanced substantially. Many of the technical issues raised during the conference are less...
Authors
Barbara B. Charonnat
Mars and Earth: Comparison of cold-climate features Mars and Earth: Comparison of cold-climate features
On Earth, glacial and periglacial features are common in areas of cold climate. On Mars, the temperature of the present-day surface is appropriate for permafrost, and the presence of water is suspected from data relating to the outgassing of the planet, from remote-sensing measurements over the polar caps and elsewhere on the Martian surface, and from recognition of fluvial morphological...
Authors
Baerbel K. Lucchitta