Far Field Studies - Comparative Analysis of Upper Mantle Q and Other Geophysical Data on the Eurasian Continent

A review and comparative analysis of published reports providing research data within Eurasia concerning the upper mantle geophysics shows the following: High upper mantle P-wave velocities, early relative teleseismic P- wave delays, low heat flow, absence of low-resistivity upper mantle layers, and...

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Bibliographic Details
Main Author: Alsup, Stephen A
Other Authors: TEXAS INSTRUMENTS INC DALLAS EQUIPMENT GROUP
Format: Text
Language:English
Published: 1973
Subjects:
Geology
Geochemistry and Mineralogy
Seismology
Seismic Detection and Detectors
*ASIA
*EUROPE
*SEISMIC DETECTION
*SEISMIC WAVES
*STRUCTURAL GEOLOGY
ABSORPTION
ANOMALIES
EARTH MANTLE
EARTHQUAKES
FAR FIELD
FAULTS(GEOLOGY)
HEAT FLUX
TECTONICS
TELLURIC CURRENTS
VOLCANOES
VELA UNIFORM
Kamchatka
Online Access:http://www.dtic.mil/docs/citations/AD0779747
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0779747
Description
Summary:A review and comparative analysis of published reports providing research data within Eurasia concerning the upper mantle geophysics shows the following: High upper mantle P-wave velocities, early relative teleseismic P- wave delays, low heat flow, absence of low-resistivity upper mantle layers, and low P-wave absorption are representative of the shield, platform, and massif regions of Eurasia; Opposite relative values of the parameters given above correspond to the active structural and volcanic regions, most notably the Sea of Okholsk - Sea of Japan - Kamchatka - Kuril-Japan region, around Lake Baykal, and along the Southern to Southwestern border of the USSR. Maps and brief discussions of the parameters mentioned, including a regional estimate of upper mantle Q for P-waves, are given in the report. See also Part B, AD0778956.

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