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High-resolution stratigraphy of a Mississippi subdelta-lobe progradation in the Barataria Bight, north-central Gulf of Mexico

Journal of Sedimentary Research

By:
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DOI: 10.2110/jsr.2006.030

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Abstract

The coastal zone of southeastern Louisiana is the product of numerous cycles of progradation, abandonment, and marine transgression of the Mississippi River delta. Currently, the shoreline in the Barataria Bight is undergoing significant erosion and retreat, and understanding its evolution is crucial in stabilization efforts. This study uses an extensive collection of geophysical and sediment core data from Barataria Bay and offshore to develop a geologic model of the shallow (< 10 m) subsurface. The purpose of the model is twofold: (1) establish the stratigraphic architecture of a subdelta lobe of the Bayou des Families delta, deposited by the Mississippi River approximately 4000 years before present; and (2) provide a high-resolution description of the geologic framework in a context that can be applied to coastal management issues in similar fluvially dominated coastal environments worldwide. The results of the study demonstrate how high-quality geologic data from the coastal environment can be used not only to further our understanding of shoreline evolution but also to provide pertinent information for coastal management needs.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
High-resolution stratigraphy of a Mississippi subdelta-lobe progradation in the Barataria Bight, north-central Gulf of Mexico
Series title:
Journal of Sedimentary Research
DOI:
10.2110/jsr.2006.030
Volume
76
Issue:
3-4
Year Published:
2006
Language:
English
Publisher:
SEPM Society for Sedimentary Geology
Contributing office(s):
Coastal and Marine Geology Program
Description:
15 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
429
Last page:
443
Number of Pages:
15
Country:
United States
State:
Louisiana
Other Geospatial:
Gulf of Mexico