Accession Number:

AD0288101

Title:

SEISMIC REFRACTION PROFILES ON THE OUTER RIDGE NORTH OF PUERTO RICO

Descriptive Note:

Corporate Author:

TEXAS A AND M UNIV COLLEGE STATION

Personal Author(s):

• DEHLINGER,PETER
• ANTOINE,J.W.

Report Date:

1962-09-30

Pagination or Media Count:

1.0

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 kmsec. Author

Descriptors:

• *OCEAN BOTTOM
• *SEISMIC WAVES
• EXPLOSIONS
• MEASUREMENT
• REFRACTION
• STATISTICAL ANALYSIS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE