Publications
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Seismically induced landslides: current research by the US Geological Survey. Seismically induced landslides: current research by the US Geological Survey.
We have produced a regional seismic slope-stability map and a probabilistic prediction of landslide distribution from a postulated earthquake. For liquefaction-induced landslides, in situ measurements of seismically induced pore-water pressures have been used to establish an elastic model of pore pressure generation. -from Authors
Authors
E. L. Harp, R. C. Wilson, D. K. Keefer, G. F. Wieczorek
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1986
No abstract available.
Authors
John B. Townshend, H.K. Rex, L.Y. Torrence
A model for the plastic flow of landslides A model for the plastic flow of landslides
To further the understanding of the mechanics of landslide flow, we present a model that predicts many of the observed attributes of landslides. The model is based on an integration of the hyperbolic differential equations for stress and velocity fields in a two-dimensional, inclined, semi-infinite half-space of Coulomb plastic material under elevated pore pressure and gravity. Our...
Authors
William Z. Savage, William K. Smith
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence, P.A. Franklin
Maps of debris-flow features evident after the storms of December 1955 and January 1982, Montara Mountain area, California Maps of debris-flow features evident after the storms of December 1955 and January 1982, Montara Mountain area, California
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
Landslides Landslides
The slopes above streams and rivers are subjected to a variety of processes that cause them to recede and retreat from the river or stream channel. These processes, collectively called mass wasting, can be classified according to rapidity of movement and according to the type of materials that are transported. Gravity is the force behind all such downslope movement. Factors that enable...
Authors
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: May 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: May 1986
No abstract available.
Authors
John B. Townshend, J.E. Papp, H.K. Rex, L.Y. Torrence
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1986 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1986
No abstract available.
Authors
John B. Townshend, R. V. O’Connell, H.K. Rex, L.Y. Torrence
On the line: Losing by a landslide, invited comment On the line: Losing by a landslide, invited comment
No abstract available.
Authors
E. E. Brabb
Reconnaissance landslide map of the Healdsburg 15-minute Quadrangle, Sonoma County, California Reconnaissance landslide map of the Healdsburg 15-minute Quadrangle, Sonoma County, California
No abstract available.
Authors
Carl M. Wentworth
How the geomagnetic field vector reverses polarity How the geomagnetic field vector reverses polarity
A highly detailed record of both the direction and intensity of the Earth's magnetic field as it reverses has been obtained from a Miocene volcanic sequence. The transitional field is low in intensity and is typically non-axisymmetric. Geomagnetic impulses corresponding to astonishingly high rates of change of the field sometimes occur, suggesting that liquid velocity within the Earth's...
Authors
M. Prevot, E. A. Mankinen, C. S. Grommé, R. S. Coe