LOL. Sand, salt and carbonates. For starters, the name of the formation "Lower Tertiary" should give a hint. Secondly, if you read my profile, you will see my family used to live in an out of the way part of South Louisiana. Guess what's big business it that part of the country?
Where was “Lower Tertiary” mentioned in either article? Are you a peak oil theory advocate? I think the abiotic theory of oil is very interesting, especially since new deposits continue to be found at very great depths. If you look on the map, the deposit appears to be nearer to the Yucatan Peninsula than Florida.