DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0022285
Title:
SHOT REFRACTION PROFILES IN THE ATLANTIC COASTAL PLAIN 6 MILES EAST OF AMBROSE LIGHTSHIP
Descriptive Note:
Corporate Author:
COLUMBIA UNIV DOBBS FERRY NY HUDSON LABS
Report Date:
1953-11-10
Pagination or Media Count:
34.0
Abstract:
The mutually perpendicular profiles were obtained by reversed refraction shooting across a point at 40 2755 N and 73 4140 W, about 8 miles south of Long Beach, Long Island, and 6 miles east of Ambrose Lightship. Three ground layers were detected with slopes of less than 1 along either profile. The seismic velocities and thicknesses of the layers are as follows water-4905ftsec, 80 feet unconsolidated sediment-5630 ftsec, 750 feet semi-consolidated sediment-6750 ftsec, 1040 feet rock basement-18,600 ftsec. The velocity values and rock basement depth are in agreement with previous seismic refraction results for nearby ocean areas.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE