SEISMIC REFRACTION PROFILES ON THE OUTER RIDGE NORTH OF PUERTO RICO

Abstract

Eighteen seismic refraction profiles were shot in the Puerto Rico Trench and Outer Ridge areas. Three of these profiles, 108, 109, and 115, located on the Outer Ridge, were analyzed, and corresponding crustal sections were constructed. Crustal layers obtained from the 3 profiles are in good agreement with those obtained by other workers analyzing intersecting profil s. The crust l sectio in the Outer Ridge appears to be relatively uniform, consisting of at least 4 and possibly 5 layers above the Mohorovicic discontinuity. This discontinuity is found to vary in depth from 11.5 to nearly 13 km along the 3 profiles, where the material below the discontinuity exhibited compressional wave velocities of 8.1 to 8.3 km/sec. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1962
Accession Number
AD0288101

Entities

People

  • J.w. Antoine
  • Peter Dehlinger

Organizations

  • Texas A&M University

Tags

DTIC Thesaurus Topics

  • Agreements
  • Discontinuities
  • Landforms
  • Materials
  • Mohorovicic Discontinuity
  • Puerto Rico
  • Refraction
  • Ridges

Fields of Study

  • Geology

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Seismology
  • Urban Planning and Geography.