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Title: Ferry Lake, Rodessa, and Punta Gorda Anhydrite bed correlation, lower cretaceous, offshore eastern Gulf of Mexico

Abstract

The Lower Cretaceous Ferry Lake and Punta Gorda Anhydrite have been used as marker beds throughout Gulf of Mexico, and divided into nine individual anhydrite beds traceable from southern Mississippi to southern Florida. The underlying Rodessa Formation has an equally well-developed anhydrite section in the offshore Eastern Gulf of Mexico and is divided into twelve basinwide anhydrite bed groupings. The anhydrites of Ferry Lake and Rodessa Formation are traceable to the anhydrites of the Punta Gorda and Lehigh Acres Formations of South Florida. Anhydrite beds appear to thicken in the central part of the trend interfingering with carbonates of the Lower Cretaceous shelf edge reef. Paleontologic data indicate that depositional water depths of the interbedded carbonates range from sea level to 100 meters. Carbonates and anhydrites may be deposited simultaneously with carbonate patchreefs developing on crests of paleo anhydrites may be deposited simultaneously with carbonate patchreefs developing on crests of paleo highs with evaporites precipitating out of a hyper-saline solution on the flanks. Areas where poor anhydrite bed development occurs may indicate areas of patch reefs and, therefore, the best potential for hydrocarbon reservoirs. Individual anhydrite beds have been correlated and color-coded on photocopies of compensated neutron density logs tomore » determine their geographic distribution. Prepared cross sections show some beds to be areawide while others are more restricted. Isopach maps show the configuration of the basin in which these beds were deposited with the basin`s long isopach axis parallel to the reef trend. Anhydrite deposition occurred with evaporation of restricted highstand waters behind reefs that rimmed the shelf edge.« less

Authors:
 [1]
  1. Minerals Management Service, New Orleans, LA (United States)
Publication Date:
OSTI Identifier:
150573
Report Number(s):
CONF-9510222-
Journal ID: AABUD2; ISSN 0149-1423; TRN: 95:007541-0046
Resource Type:
Journal Article
Journal Name:
AAPG Bulletin
Additional Journal Information:
Journal Volume: 79; Journal Issue: 10; Conference: American Association of Petroleum Geologists (AAGS) Gulf Coast Section meeting, Baton Rouge, LA (United States), 25-27 Oct 1995; Other Information: PBD: Oct 1995
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; GULF OF MEXICO; OFFSHORE SITES; PETROLEUM DEPOSITS; STRATIGRAPHY; PETROLEUM; EXPLORATION; ANHYDRITE; SEDIMENTATION; CRETACEOUS PERIOD

Citation Formats

Petty, A J. Ferry Lake, Rodessa, and Punta Gorda Anhydrite bed correlation, lower cretaceous, offshore eastern Gulf of Mexico. United States: N. p., 1995. Web.
Petty, A J. Ferry Lake, Rodessa, and Punta Gorda Anhydrite bed correlation, lower cretaceous, offshore eastern Gulf of Mexico. United States.
Petty, A J. 1995. "Ferry Lake, Rodessa, and Punta Gorda Anhydrite bed correlation, lower cretaceous, offshore eastern Gulf of Mexico". United States.
@article{osti_150573,
title = {Ferry Lake, Rodessa, and Punta Gorda Anhydrite bed correlation, lower cretaceous, offshore eastern Gulf of Mexico},
author = {Petty, A J},
abstractNote = {The Lower Cretaceous Ferry Lake and Punta Gorda Anhydrite have been used as marker beds throughout Gulf of Mexico, and divided into nine individual anhydrite beds traceable from southern Mississippi to southern Florida. The underlying Rodessa Formation has an equally well-developed anhydrite section in the offshore Eastern Gulf of Mexico and is divided into twelve basinwide anhydrite bed groupings. The anhydrites of Ferry Lake and Rodessa Formation are traceable to the anhydrites of the Punta Gorda and Lehigh Acres Formations of South Florida. Anhydrite beds appear to thicken in the central part of the trend interfingering with carbonates of the Lower Cretaceous shelf edge reef. Paleontologic data indicate that depositional water depths of the interbedded carbonates range from sea level to 100 meters. Carbonates and anhydrites may be deposited simultaneously with carbonate patchreefs developing on crests of paleo anhydrites may be deposited simultaneously with carbonate patchreefs developing on crests of paleo highs with evaporites precipitating out of a hyper-saline solution on the flanks. Areas where poor anhydrite bed development occurs may indicate areas of patch reefs and, therefore, the best potential for hydrocarbon reservoirs. Individual anhydrite beds have been correlated and color-coded on photocopies of compensated neutron density logs to determine their geographic distribution. Prepared cross sections show some beds to be areawide while others are more restricted. Isopach maps show the configuration of the basin in which these beds were deposited with the basin`s long isopach axis parallel to the reef trend. Anhydrite deposition occurred with evaporation of restricted highstand waters behind reefs that rimmed the shelf edge.},
doi = {},
url = {https://www.osti.gov/biblio/150573}, journal = {AAPG Bulletin},
number = 10,
volume = 79,
place = {United States},
year = {Sun Oct 01 00:00:00 EDT 1995},
month = {Sun Oct 01 00:00:00 EDT 1995}
}