Accession Number:

AD0706872

Title:

RESEARCH IN SEISMOLOGY.

Descriptive Note:

Annual rept. 1 Nov 68-31 Oct 69,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF EARTH AND PLANETARY SCIENCES

Personal Author(s):

Report Date:

1970-04-08

Pagination or Media Count:

472.0

Abstract:

Seismic research projects supported by the contract are summarized under three broad categories The structure and some properties of the earths mantle and deep interior are investigated using arrays and dtddelta measurements, dense net of stations in North America, as well as seismic surface waves and free oscillations. Body and surface wave propagation in media with irregular interfaces is studied using numerical techniques. Magnitude discrepancies, focal depths, mechanisms and statistics of earthquake occurrences are discussed. Author

Subject Categories:

  • Geology, Geochemistry and Mineralogy
  • Seismology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE