Publications
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Introduction and digest to the Special Issue on Chemical Effects of Water on the Deformation and Strengths of Rocks Introduction and digest to the Special Issue on Chemical Effects of Water on the Deformation and Strengths of Rocks
The important role of pore pressure in promoting such brittle processes as cataclasis, hydraulic fracturing, large‐scale faulting, and earthquakes within the crust is widely accepted in geology and geophysics [, 1957; , 1959; , 1958; ., 1963; , 1968; ., 1968; ., 1976; , 1973, 1980; , 1981]. Provided that fluid pressure is fully communicated with rock pore space, the effective normal...
Authors
Stephen H. Kirby
Experimental deformation of topaz crystals: Possible embrittlement by intracrystalline water Experimental deformation of topaz crystals: Possible embrittlement by intracrystalline water
Crystallographically oriented single‐crystal prisms of gem quality topaz (composition AlSiO (OH− F) where x = 0.04 ± 0.01) were deformed at a confining pressure of 1.50 GPa, a temperature of 800°C, and a strain rate of 2×10 s. Under nearly identical conditions, all crystals of anhydrous rock‐forming minerals that have been tested to date, such as olivine, quartz, feldspars, pyroxenes...
Authors
R. W. Lee, Stephen H. Kirby
Effects of compression direction on the plasticity and rheology of hydrolytically weakened synthetic quartz crystals at atmospheric pressure Effects of compression direction on the plasticity and rheology of hydrolytically weakened synthetic quartz crystals at atmospheric pressure
A hydrothermally grown synthetic quartz crystal with 370±60 ppm hydroxyl impurity was cut into right rectangular prisms in eight crystallographic orientations. We compressed the prisms under constant axial force corresponding to a uniaxial stress of 140.0±0.5 MPa, and temperatures of 510° and 750°C. All but one of the samples sustained permanent axial strains of 2–3%. We established the...
Authors
Mark F. Linker, Stephen H. Kirby, A. Ord, J.M. Christie
National planning considerations for the acquisition of strong ground-motion data National planning considerations for the acquisition of strong ground-motion data
No abstract available.
Authors
Roger D. Borcherdt
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1984 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1984
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, August 1984 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, August 1984
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, February 1984 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, February 1984
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Team effort meets 1983 landslide emergency in Utah Team effort meets 1983 landslide emergency in Utah
No abstract available.
Authors
E. E. Brabb, R. W. Fleming
Landslides caused by earthquakes Landslides caused by earthquakes
Data from 40 historical world-wide earthquakes were studied to determine the characteristics, geologic environments, and hazards of landslides caused by seismic events. This sample of 40 events was supplemented with intensity data from several hundred United States earthquakes to study relations between landslide distribution and seismic parameters. Fourteen types of landslides were...
Authors
D. K. Keefer
Ice and debris in the fretted terrain, Mars Ice and debris in the fretted terrain, Mars
Viking moderate- and high-resolution images along the northern highland margin were studied monoscopically and stereoscopically to contribute to an understanding of the development of fretted terrain. Results support the hypothesis that the fretting process involved flow facilitated by interstitial ice. The process apparently continued for a long period of time, and debris-apron...
Authors
Baerbel K. Lucchitta
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, July 1984 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, July 1984
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Summary geologic report for petroleum lease sale #100, Kodiak Shelf, Alaska Summary geologic report for petroleum lease sale #100, Kodiak Shelf, Alaska
No abstract available.
Authors
M. A. Fisher, Roland E. von Huene, M. A. Hampton