Geological Results of a Wide Angle Refelection Survey Using Sonobuoys in the Southern Chukchi Sea.

The results of six sonobuoy wide angle reflection profiles in the Southern Chukchi Sea show that from 200 to 700 meters of unconsolidated sediments with acoustic velocities less than 2 km/sec overlay 1-1 1/2 kilometers of sandstones and shales with velocities in the range of 2.1 to 2.8 km/sec. A hig...

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Bibliographic Details
Main Authors: Johnson,Thomas C., Breslau,Lloyd R.
Other Authors: COAST GUARD WASHINGTON D C APPLIED SCIENCES DIV
Format: Text
Language:English
Published: 1970
Subjects:
Physical and Dynamic Oceanography
Acoustic Detection and Detectors
(*CHUKCHI SEA
OCEAN BOTTOM)
(*OCEAN BOTTOM
ECHO RANGING)
SEDIMENTATION
REFLECTION
SANDSTONE
SHALE
EROSION
SEISMIC PROFILES
Chukchi Sea
Chukchi
Online Access:http://www.dtic.mil/docs/citations/AD0726569
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0726569
Description
Summary:The results of six sonobuoy wide angle reflection profiles in the Southern Chukchi Sea show that from 200 to 700 meters of unconsolidated sediments with acoustic velocities less than 2 km/sec overlay 1-1 1/2 kilometers of sandstones and shales with velocities in the range of 2.1 to 2.8 km/sec. A higher velocity formation of approximately 4 km/sec was found at two of the six stations. These results show that extensive deposition, as well as marine erosion, has played an important role in making the Chukchi Sea floor the flat feature that it is today. (Author)

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