Publications
Filter Total Items: 2186
Landslides in the vicinity of the Fort Randall Reservoir, South Dakota
No abstract available.
Authors
Christopher F. Erskine
The landslide at Cumberland, Harlan County, Kentucky
No abstract available.
Authors
William E. Davies
Geological, geophysical, and engineering investigations of the Loveland Basin landslide, Clear Creek County, Colorado, 1963-65
No abstract available.
Authors
Charles Sherwood Robinson, Fitzhugh T. Lee, R.W. Moore, R. D. Carroll, J. H. Scott, J.D. Post, C. S. Robinson, R.A. Bohman
Pacific geomagnetic secular variation
A smooth field over the central Pacific for a million years indicates a nonuniform lower mantle of the earth.
Authors
Richard R. Doell, A. Cox
Geomagnetic polarity epochs: age and duration of the olduvai normal polarity event
New data show that the Olduvai normal geomagnetic polarity event is represented in Olduvai Gorge, Tanzania, by rocks covering a time span of roughly from 0.1 to 0.2 my and is no older than 2.0 my. Hence the long normal polarity event of this age that is seen in deep-sea sediment cores and in magnetic profiles over oceanic ridges should be called the Olduvai event. The lava from which the Gilsàeven
Authors
C. S. Grommé, R. L. Hay
Preliminary map of landslide deposits in the Green Mountain area, Jefferson County, Colorado
No abstract available.
Authors
Glenn R. Scott
Estimated relative abundance of landslides in the San Francisco Bay region, California
No abstract available.
Authors
D. H. Radbruch-Hall, C. M. Wentworth
Preliminary photointerpretation and damage maps of landslide and other surficial deposits in northeastern San Jose, California
No abstract available.
Authors
T. H. Nilsen, E. E. Brabb
A computer program to trace seismic ray distribution in complex two-dimensional geological models
A computer program has been developed to trace seismic rays and their amplitudes and energies through complex two-dimensional geological models, for which boundaries between elastic units are defined by a series of digitized X-, Y-coordinate values. Input data for the program includes problem identification, control parameters, model coordinates and elastic parameter for the elastic units. The pro
Authors
Nazieh K. Yacoub, James H. Scott
Map showing relative amounts of landslides in California
No abstract available.
Authors
Dorothy H. Radbruch, Kenneth C. Crowther
History of the geomagnetic field
Direct measurements of the direction and strength of the earth's magnetic field have provided a knowledge of the field's form and behavior during the last few hundreds of years. For older times, however, it has been necessary to measure the magnetism of certain rocks to learn what the geomagnetic field was like. For example, when a lava flow solidifies (at temperatures near 1000°C) and cools throu
Authors
Richard R. Doell
Geomagnetic reversals
Although decreasing rapidly, the earth's magnetic field is probably not now reversing.
Authors
A. Cox