Publications
Filter Total Items: 7516
Fish kill from underwater explosions Fish kill from underwater explosions
The U.S. Geological Survey has used 23 different shotpoints during two seasons of field work in our seismic study of crustal structure in western United States. Without exception, it has been found that under-water shotpoints result in a more efficient conversion of explosive energy into seismic energy than do drilled-hole shotpoints. This experience, together with elimination of...
Authors
David J. Stuart
Crustal structure along the coast of California from seismic-refraction measurements Crustal structure along the coast of California from seismic-refraction measurements
Two reversed seismic-refraction profiles were recorded between Los Angeles and San Francisco in 1961. The three shotpoints were located in Santa Monica Bay, offshore near San Francisco, and at Camp Roberts, about halfway between Los Angeles and San Francisco. The velocity of Pg along these profiles is 6.1 ± 0.1 km/sec, with possible exceptions near San Francisco and near Los Angeles...
Authors
J. H. Healy
Digital processing of array seismic recordings Digital processing of array seismic recordings
This technical letter contains a brief review of the operations which are involved in digital processing of array seismic recordings by the methods of velocity filtering, summation, cross-multiplication and integration, and by combinations of these operations (the "UK Method" and multiple correlation). Examples are presented of analyses by the several techniques on array recordings which...
Authors
Alan Ryall, John Birtill
Landslides along the Columbia River valley, northeastern Washington, with a section on seismic surveys Landslides along the Columbia River valley, northeastern Washington, with a section on seismic surveys
No abstract available.
Authors
Fred O. Jones, Daniel R. Embody, Warren Lee Peterson, R. M. Hazlewood
Landslides in the San Francisco South quadrangle, California Landslides in the San Francisco South quadrangle, California
No abstract available.
Authors
Manuel G. Bonilla
Landslide conditions along the Ferry County highway parallelling Lake Roosevelt from Kettle Falls to the mouth of the Spokane River, Washington Landslide conditions along the Ferry County highway parallelling Lake Roosevelt from Kettle Falls to the mouth of the Spokane River, Washington
As part of the program of the U.S. Geological Survey, landslides are being studied in several localities in the United States. These studies are directed toward assembling criteria for recognition of landslides, classification, and cataloging of remedial or control methods that have been effective. In the gorge of the Columbia Ricer in Washington, landslides of large magnitude have been...
Authors
Fred O. Jones
The landslide of Sainte-Adresse cliff The landslide of Sainte-Adresse cliff
The Sainte-Adresse Cliff in the neighborhood of Le Havre was subject in the past to repeated movements of greater of lesser scope which in 1944 have become markedly accentuated because of works on the "Atlantic Wall" and bomb and mine explosions. The situation became dangerous and required a complete study including geological and geotechnical surveys with borings and search of slip...
Authors
M. M. Buisson, Severine Britt
Landslides in shale at Rapid City, South Dakota Landslides in shale at Rapid City, South Dakota
In the past 5 years several landslides have originated in hillsides at Rapid City, South Dakota, with resulting damage both to city streets and to private dwellings. The present investigation is a contribution to the continuing study of landslides by the U. S. Geological Survey, although a formal project of landslide investigation in Rapid City has not been established.
Authors
Dwight R. Crandell
Landslide problems of southwestern Colorado Landslide problems of southwestern Colorado
No abstract available.
Authors
Helen Dowling Varnes
Geologic study of the landslide at Prattville, Alabama Geologic study of the landslide at Prattville, Alabama
No abstract available.
Authors
D. Hoye Eargle
Study of a landslide due to the presence of glauconite (Etude d'un glissement de terrain du a 1a presence de glauconie) Study of a landslide due to the presence of glauconite (Etude d'un glissement de terrain du a 1a presence de glauconie)
No abstract available.
Authors
Martha Proix-Noe, Severine Britt