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Title: Evolution of salt structures and Cretaceous uplift in westernmost Mississippi Salt basin, Madison Parish, Louisiana

Abstract

Subsurface structures were interpreted from seismic images and well logs in the westernmost Mississippi Salt basin, Madison Parish, Louisiana. Structural and stratigraphic relations indicate that salt structures (Duckport, North Tallulah, South Coleman, Tallulah, and Walnut domes) have evolved through pillow, diapir, and postdiapir stages. Withdrawal synclines associated with each stage of growth occur adjacent to salt domes and are characterized by overthickening of sediments. Synclines associated with Walnut dome are particularly well recognized in the seismic data. Primary withdrawal synclines and present day turtle structure anticlines involve the deepest recorded reflections (possibly Jurassic carbonates) above seismically transparent Paleozoic basement and overlying remnant salt. Similar early (Late Jurassic) salt mobility has recently been documented in North Louisiana and East Texas Salt basins. Secondary withdrawal synclines (Cotton Valley) are exceptionally overthickened and their axes are closer to the dome than the axes of primary synclines. Tertiary synclines are broad and appear to be active at present. North-south seismic sections that cross the approximate northwest boundary of the Mississippi Salt basin display post-middle Cretaceous upwarp (the Monroe Uplift) involving basement. Successively older Lower Cretaceous reflections are truncated to the north beneath an erosional surface. Upwarp apparently continued well into the Cenozoic.

Authors:
;
Publication Date:
Research Org.:
Louisiana State Univ., Baton Rouge (USA)
OSTI Identifier:
6127911
Alternate Identifier(s):
OSTI ID: 6127911
Report Number(s):
CONF-8810362-
Journal ID: CODEN: AABUD
Resource Type:
Conference
Journal Name:
AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)
Additional Journal Information:
Journal Volume: 72:9; Conference: Gulf Coast Association of the Geological Society and Gulf Coast Section of SEPM meeting, New Orleans, LA, USA, 19 Oct 1988
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; LOUISIANA; SALT DEPOSITS; GEOLOGIC HISTORY; ANTICLINES; CRETACEOUS PERIOD; JURASSIC PERIOD; SEISMIC SURVEYS; WELL LOGGING; FEDERAL REGION VI; GEOLOGIC AGES; GEOLOGIC DEPOSITS; GEOLOGIC STRUCTURES; GEOPHYSICAL SURVEYS; MESOZOIC ERA; NORTH AMERICA; SURVEYS; USA 020200* -- Petroleum-- Reserves, Geology, & Exploration

Citation Formats

Alam, A.H.M.S., and Pilger, R.H. Jr. Evolution of salt structures and Cretaceous uplift in westernmost Mississippi Salt basin, Madison Parish, Louisiana. United States: N. p., 1988. Web.
Alam, A.H.M.S., & Pilger, R.H. Jr. Evolution of salt structures and Cretaceous uplift in westernmost Mississippi Salt basin, Madison Parish, Louisiana. United States.
Alam, A.H.M.S., and Pilger, R.H. Jr. Thu . "Evolution of salt structures and Cretaceous uplift in westernmost Mississippi Salt basin, Madison Parish, Louisiana". United States.
@article{osti_6127911,
title = {Evolution of salt structures and Cretaceous uplift in westernmost Mississippi Salt basin, Madison Parish, Louisiana},
author = {Alam, A.H.M.S. and Pilger, R.H. Jr.},
abstractNote = {Subsurface structures were interpreted from seismic images and well logs in the westernmost Mississippi Salt basin, Madison Parish, Louisiana. Structural and stratigraphic relations indicate that salt structures (Duckport, North Tallulah, South Coleman, Tallulah, and Walnut domes) have evolved through pillow, diapir, and postdiapir stages. Withdrawal synclines associated with each stage of growth occur adjacent to salt domes and are characterized by overthickening of sediments. Synclines associated with Walnut dome are particularly well recognized in the seismic data. Primary withdrawal synclines and present day turtle structure anticlines involve the deepest recorded reflections (possibly Jurassic carbonates) above seismically transparent Paleozoic basement and overlying remnant salt. Similar early (Late Jurassic) salt mobility has recently been documented in North Louisiana and East Texas Salt basins. Secondary withdrawal synclines (Cotton Valley) are exceptionally overthickened and their axes are closer to the dome than the axes of primary synclines. Tertiary synclines are broad and appear to be active at present. North-south seismic sections that cross the approximate northwest boundary of the Mississippi Salt basin display post-middle Cretaceous upwarp (the Monroe Uplift) involving basement. Successively older Lower Cretaceous reflections are truncated to the north beneath an erosional surface. Upwarp apparently continued well into the Cenozoic.},
doi = {},
journal = {AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)},
number = ,
volume = 72:9,
place = {United States},
year = {1988},
month = {9}
}

Conference:
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