Quaternary geology of Avery Island, Louisiana
Abstract
Avery Island, one of the Five Islands salt domes of south-central Louisiana, is a piercement-type dome that has been uplifted from several kilometers' depth. It is nearly circular in plan with a maximum elevation approximately 50 m above the surrounding coastal marsh. Dissection has produced a terrain of gullies and steep slopes. The features identified indicate a complex geologic history for Avery Island. Deposition of late Pleistocene sediments in a low-relief alluvial plain and subsequent soil development predate domal uplift. The stratigraphy of loess and colluvial silts indicates the island was emergent during loess depositions. The degree of dissection, distribution of colluvium, and shearing of Quaternary sediments reflects continual uplift after loess deposition.
- Authors:
- Publication Date:
- Research Org.:
- Louisiana Geological Survey, Baton Rouge
- OSTI Identifier:
- 6887589
- Report Number(s):
- CONF-8610199-
Journal ID: CODEN: AAPGB
- Resource Type:
- Conference
- Journal Name:
- Am. Assoc. Pet. Geol., Bull.; (United States)
- Additional Journal Information:
- Journal Volume: 70:9; Conference: 36. annual meeting of the Gulf Coast Association Geological Societies and the Gulf Coast Section of SEPM, Baton Rouge, LA, USA, 22 Oct 1986
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; LOUISIANA; GEOLOGIC TRAPS; SALT DEPOSITS; DEPOSITION; QUATERNARY PERIOD; CENOZOIC ERA; FEDERAL REGION VI; GEOLOGIC AGES; GEOLOGIC DEPOSITS; NORTH AMERICA; USA; 020200* - Petroleum- Reserves, Geology, & Exploration
Citation Formats
Autin, W J, McCulloh, R P, and Davison, A T. Quaternary geology of Avery Island, Louisiana. United States: N. p., 1986.
Web.
Autin, W J, McCulloh, R P, & Davison, A T. Quaternary geology of Avery Island, Louisiana. United States.
Autin, W J, McCulloh, R P, and Davison, A T. 1986.
"Quaternary geology of Avery Island, Louisiana". United States.
@article{osti_6887589,
title = {Quaternary geology of Avery Island, Louisiana},
author = {Autin, W J and McCulloh, R P and Davison, A T},
abstractNote = {Avery Island, one of the Five Islands salt domes of south-central Louisiana, is a piercement-type dome that has been uplifted from several kilometers' depth. It is nearly circular in plan with a maximum elevation approximately 50 m above the surrounding coastal marsh. Dissection has produced a terrain of gullies and steep slopes. The features identified indicate a complex geologic history for Avery Island. Deposition of late Pleistocene sediments in a low-relief alluvial plain and subsequent soil development predate domal uplift. The stratigraphy of loess and colluvial silts indicates the island was emergent during loess depositions. The degree of dissection, distribution of colluvium, and shearing of Quaternary sediments reflects continual uplift after loess deposition.},
doi = {},
url = {https://www.osti.gov/biblio/6887589},
journal = {Am. Assoc. Pet. Geol., Bull.; (United States)},
number = ,
volume = 70:9,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 1986},
month = {Mon Sep 01 00:00:00 EDT 1986}
}