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Seismic crustal anisotropy in Northern Georgia

CARNEGIE INSTITUTION OF WASHINGTON DEPARTMENT OF TERRESTRIAL MAGNETISM, WASHINGTON, D. C. 20015

Abstract

The following velocities were observed in the piedmont of Georgia, principally from quarry explosions: Pg, 6.2; Sg, 3.6; Pn, 8.2 km/sec. Velocity variation with azimuth was about 0.75 and 0.45 km/sec for Pg and Sg, respectively. The principal cause is probably velocity banding in the crust, observed previously in short refraction profiles in the coastal plain.

Footnotes

^* Now at NOAA Atlantic Oceanographic and Meteorological Laboratories, Miami, Florida 33130.

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