SHOT REFRACTION PROFILES IN THE ATLANTIC COASTAL PLAIN 6 MILES EAST OF AMBROSE LIGHTSHIP
COLUMBIA UNIV DOBBS FERRY NY HUDSON LABS
Pagination or Media Count:
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.
- Physical and Dynamic Oceanography