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

Abstract

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.

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1973
Accession Number
AD0779747

Entities

People

  • Stephen A. Alsup

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Asia
  • Black Sea
  • Caspian Sea
  • Central Asia
  • Conductivity
  • Continents
  • Eurasia
  • Geographic Regions
  • Literature Surveys
  • Physics
  • Seismic Waves
  • Telluric Currents
  • United States
  • Ussr
  • Wave Propagation
  • Waves

Fields of Study

  • Environmental science

Readers

  • Seismology