The Pinnacles (Gulf of Mexico) The Pinnacles (Gulf of Mexico) The Pinnacles is a rocky prominence on the Continental Shelf approximately 300 feet deep and located about 70 miles off the coasts of Mississippi and Alabama which contains a wide-ranging reef formation. The Pinnacles reefs consist of a lush fauna of hard, soft and, black corals, fixed sea lilies and sponges. The reef creates a living habitat for a well-developed and diverse fish culture. Snappers and groupers spawn here. Typical Caribbean reef fishes and Carolinian shelf fishes, along with epipelagic fishes, and a few deep-sea fishes populate the reef. The Pinnacles reefs are currently too
Gulf of Mexico basin Mexico which penetrated the Late-Triassic and Early-Jurassic strata, filling the extensional graben features. The Gulf of Mexico basin red beds are specifically named the Eagle Mills formation, located directly beneath the salt, evaporite and marine sediments deposited during the Jurassic, and often found with the diabase dikes and basalt flows mentioned above. Basement rocks in the northeastern region of the Gulf of Mexico basin are fragments of the African plate which remained behind during the breakup of Pangaea and date back to the late Precambrian through the Cambrian. It is atop these Precambrian plate fragments that the mainly carbonate and