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

Personal Author(s):

• Carlson, R. O.
• Brown, M. V.

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.

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