Accession Number : AD0022285


Title :   SHOT REFRACTION PROFILES IN THE ATLANTIC COASTAL PLAIN 6 MILES EAST OF AMBROSE LIGHTSHIP


Corporate Author : COLUMBIA UNIV DOBBS FERRY NY HUDSON LABS


Personal Author(s) : Carlson, R O ; Brown, M V


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/022285.pdf


Report Date : 10 Nov 1953


Pagination or Media Count : 34


Abstract : The mutually perpendicular profiles were obtained by reversed refraction shooting across a point at 40 27'55 N and 73 41'40 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-4905ft/sec, 80 feet; unconsolidated sediment-5630 ft/sec, 750 feet; semi-consolidated sediment-6750 ft/sec, 1040 feet; rock basement-18,600 ft/sec. The velocity values and rock basement depth are in agreement with previous seismic refraction results for nearby ocean areas.


Descriptors :   *SOUNDING , *OCEAN BOTTOM SOILS , *ACOUSTIC VELOCITY , DEPTH , PROFILES , SEISMIC WAVES , SEISMIC VELOCITY , OCEAN ENVIRONMENTS , ISLANDS , ROCK , LAYERS , THICKNESS , REFRACTION


Subject Categories : Physical and Dynamic Oceanography


Distribution Statement : APPROVED FOR PUBLIC RELEASE