Publications
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Pacific geomagnetic secular variation Pacific geomagnetic secular variation
We have considered several different types of records of long-period geomagnetic secular variation: direct measurements made in geomagnetic observatories; paleomagnetic measurements on Hawaiian lava flows with accurately known ages in the interval 0 to 200 years; paleomagentic measurements on Hawaiian lava flows with loosely determined ages within the interval 200 to 10,000 years ago...
Authors
Richard R. Doell, A. Cox
Satellite relay telemetry of seismic data in earthquake prediction and control Satellite relay telemetry of seismic data in earthquake prediction and control
The Satellite Telemetry Earthquake Monitoring Program was started in FY 1968 to evaluate the applicability of satellite relay telemetry in the collection of seismic data from a large number of dense seismograph clusters laid out along the major fault systems of western North America. Prototype clusters utilizing phone-line telemetry were then being installed by the National Center for...
Authors
Wayne H. Jackson, Jerry P. Eaton
Two former faces of the moon Two former faces of the moon
Systematic geologic mapping of the lunar near side has resulted in the assignment of relative ages to most visible features. As a derivative of this work, geologic and artistic interpretations have been combined to produce reconstructions of the Moon's appearance at two significant points in its history. The reconstructions, although generalized, show the Moon (1) as it probably appeared...
Authors
D.E. Wilhelms, D.E. Davis
Estimated relative abundance of landslides in the San Francisco Bay region, California 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 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