Publications
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Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, February 1985
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, January 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Proceedings of Workshop XXVIII on the Borah Peak, Idaho, earthquake: Volume B. Fault scarps, landslides and other features associated with the Borah Peak earthquake of October 28, 1983, central Idaho: A field trip guide, with a section on the Doublespring
No abstract available.
Authors
Anthony J. Crone, M. H. Hait
Feasibility of a nationwide program for the identification and delineation of hazards from mud flows and other landslides; Chapter A, Landslide classification for identification of mud flows and other landslides
No abstract available.
Authors
Russell H. Campbell, David J. Varnes, Robert W. Fleming, Monty A. Hampton, David B. Prior, Dwight A. Sangrey, Donald R. Nichols, Earl E. Brabb
More on the alleged 1970 geomagnetic jerk
French and United Kingdom workers have published reports describing a sudden change in the secular acceleration, called an impulse or a jerk, which took place around 1970. They claim that this change took place in a period of a year or two and that the sources of the alleged jerk are internal. An earlier paper by this author questioned their method of analysis pointing out that their method of pie
Authors
L.R. Alldredge
Steens Mountain geomagnetic polarity transition is a single phenomenon
[No abstract available]
Authors
C. S. Grommé, E. A. Mankinen, M. Prevot, R. S. Coe
High-frequency observations and source parameters of microearthquakes recorded at hard-rock sites
We have estimated the source parameters of 53 microearthquakes recorded in July 1983 which were aftershocks of the Miramichi, New Brunswick, earthquake that occurred on 9 January 1982. These events were recorded by local three-component digital seismographs at 400 sps/component from 2-Hz velocity transducers sited directly on glacially scoured crystalline basement outcrop. Hypocentral distances ar
Authors
Edward Cranswick, Robert Wetmiller, John Boatwright
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 core incre
Authors
M. Prevot, E. A. Mankinen, C. S. Grommé, R. S. Coe
Saudi Arabian seismic-refraction profile: A traveltime interpretation of crustal and upper mantle structure
The crustal and upper mantle compressional-wave velocity structure across the southwestern Arabian Shield has been investigated by a 1000-km-long seismic refraction profile. The profile begins in Mesozoic cover rocks near Riyadh on the Arabian Platform, trends southwesterly across three major Precambrian tectonic provinces, traverses Cenozoic rocks of the coastal plain near Jizan, and terminates a
Authors
Walter D. Mooney, M. E. Gettings, H. R. Blank, J. H. Healy
Geographic variation in ground shaking as a function of changes in near-surface properties and geologic structure near Los Angeles, California
No abstract available.
Authors
A. M. Rogers, Ladislaus C. Tinsley, Roger D. Borcherdt