Publications
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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 operating
Authors
M.F. Linker, Stephen H. Kirby, A. Ord, J.M. Christie
National planning considerations for the acquisition of strong ground-motion data
No abstract available.
Authors
Roger D. Borcherdt
Addresses, topics of interest, and geographic distribution of professors working on landslides in the United States
No abstract available.
Authors
E. E. Brabb, Ann R. FitzSimmons
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 formation shaped t
Authors
Baerbel K. Lucchitta
Transitional paleointensities from Kauai, Hawaii, and geomagnetic reversal models
Previously presented paleointensity results from an R-N transition zone in Kauai, Hawaii, show that field intensity dropped from 0. 431 Oe to 0. 101 Oe while the field remained within 30 degree of the reversed axial dipole direction. A recovery in intensity and the main directional change followed this presumably short period of low field strength. As the reversal neared completion, the field has
Authors
Scott W. Bogue, Robert S. Coe
Proceedings of the 1980 workshop of the International Association of Seismology and Physics of the Earth's Interior on the seismic modeling of laterally varying structures: Contributions based on data from the 1978 Saudi Arabian refraction profile
No abstract available.
Authors
Walter D. Mooney, Claus Prodehl
Noise analysis of the seismic system employed in the northern and southern California seismic nets
The seismic networks have been designed and operated to support recording on Develocorders (less than 40db dynamic range) and analog magnetic tape (about 50 db dynamic range). The principal analysis of the records has been based on Develocorder films; and background earth noise levels have been adjusted to be about 1 to 2 mm p-p on the film readers. Since the traces are separated by only 10 to 12
Authors
J. P. Eaton
Preliminary map showing recently active landslides in the Marietta area, Washington County, Ohio
No abstract available.
Authors
John S. Pomeroy
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 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: 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: October 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: September 1984
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin