Ancient buried submarine trough, northwest Gulf of Mexico
Geo-Marine Letters
By: H. L. Berryhill Jr.
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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.
Suggested Citation
Berryhill, H.L., 1981, Ancient buried submarine trough, northwest Gulf of Mexico: Geo-Marine Letters, v. 1, no. 2, p. 105-110, https://doi.org/10.1007/BF02463326.
| 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 |
| Larger Work Title | Geo-Marine Letters |
| First page | 105 |
| Last page | 110 |