The Louann Salt is a widespread evaporite formation that formed in the Gulf of Mexico during the Callovian in the mid Jurassic. The Louann formed in a rift as the South American and North American Plates separated, from an embayment of the Pacific Ocean. The Louann underlies much of the northern Gulf coast from Texas to the Florida panhandle and extends beneath large areas of the Gulf coastal plain of Mississippi, Louisiana and Texas.
The Campeche Salt or Isthmaian Salt is the contemporaneous salt layer that developed on the south margin of the Gulf rift. It extends from Campeche, Mexico north along the west margin of the Campeche Bank north of the Yucatan Peninsula.
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- Hyne, Norman J., Nontechnical guide to petroleum geology, exploration, drilling, and production, Pennwell Books, 2nd ed. p. 193 ISBN 978-0-87814-823-3
- http://oceanexplorer.noaa.gov/explorations/02mexico/background/brinepool/media/gulf_salt.html Ocean Explorer
- Pilcher, Robin S.; Blumstein, Raleigh D. (2007). "Brine volume and salt dissolution rates in Orca Basin, northeast Gulf of Mexico". AAPG Bulletin 91 (6). pp. 823–833. doi:10.1306/12180606049.
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