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Ancient buried submarine trough, northwest Gulf of Mexico

Geo-Marine Letters

By:
DOI: 10.1007/BF02463326

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Abstract

A large buried submarine trough crosses the seaward margin of the continental shelf off the southwest coast of Louisiana. Original length was about 90 km, and width at the shelf edge was 16 km. Maximum eroded depth may have been as much as 305 m. Seismic characteristics of the prograded fill indicate cyclically repeated sequences of retrogressive deltaic and partly slumped sediments overlain by well-layered transgressive deposits. Slumping was increasingly prevalent toward the shelf edge. The cyclic sequences indicate that the trough was a passageway for large volumes of sediment onto the continental slope during several stages of lowered sea level. ?? 1981 A.M. Dowden, Inc.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Ancient buried submarine trough, northwest Gulf of Mexico
Series title:
Geo-Marine Letters
DOI:
10.1007/BF02463326
Volume
1
Issue:
2
Year Published:
1981
Language:
English
Publisher location:
Springer-Verlag
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
105
Last page:
110
Number of Pages:
6