CRUSTAL MORPHOLOGY OF CENTRAL ALASKA.

Abstract

In July 1968 five temporary seismic stations were installed in central Alaska to augment the existing stations of the Seismology Laboratory of the University of Alaska. These stations, along with several stations of the United States Coast and Geodetic Survey, were utilized in a crustal study wherein the energy source was earthquakes. This method of study is suited to central Alaska because of its high seismicity and sparce road system. Apparent velocities were calculated between each pair of stations for which there was adequate data. Assuming a standard crust-mantle velocity contrast the dip of the Moho was calculated. The resulting depth distribution is generally consistent with isostacy, however, significant anomalies are explained by sea-floor spreading in the Gulf of Alaska. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1970
Accession Number
AD0707885

Entities

People

  • John N. Davies

Tags

DTIC Thesaurus Topics

  • Buildings And Structures
  • Contrast
  • Earth'S Characteristics
  • Earthquakes
  • Geodetic Surveys
  • Mohorovicic Discontinuity
  • Research Facilities
  • Seabed
  • Seismology
  • Standards
  • Surveys
  • United States
  • Universities

Fields of Study

  • Environmental science

Readers

  • Computer Vision.
  • Oceanography.
  • Seismology