TECTONIC FEATURES OF THE EARTH'S CRUST AND UPPER MANTLE

• Main Author: Pilant, Walter L
• Other Authors: PITTSBURGH UNIV PA DEPT OF EARTH AND PLANETARY SCIENCES
• Format: Text
• Language: English
• Published: 1966
• Subjects: Seismology; *EARTHQUAKES; *RAYLEIGH WAVES; AMPLITUDE MODULATION; CANADA; EARTH(PLANET); GREENLAND; MAPS; PROPAGATION; SCATTERING; SEISMIC WAVES; UNITED STATES; Canada; Greenland
• Online Access: http://www.dtic.mil/docs/citations/AD0804294; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0804294

A discussion is given of the quality of the data obtainable from carefully selected Rayleigh Surface Waves traversing the North American continent. Using data from five events, a phase velocity map is constructed for the United States, the Canadian Shield, and Greenland. Average values are computed for various regions of this area and are given in a table and compared from region to region as well as with previous results. (