The Florida Platform is a flat geological feature with the emergent portion forming the Florida peninsula .
5-521: The platform forms an escarpment between the Gulf of Mexico and the Atlantic Ocean . The platform's western edge, or Florida Escarpment , is normally defined where water depths at 300 feet (91 m) drop dramatically and in a short distance to 10,000 feet (3,000 m). The Florida peninsula is located on the eastern side of the platform, where in places it lies only 3 to 4 miles (4.8 to 6.4 km) from
10-405: A platform is a continental area covered by relatively flat or gently tilted, mainly sedimentary strata , which overlie a basement of consolidated igneous or metamorphic rocks of an earlier deformation. Platforms, shields and the basement rocks together constitute cratons . Platform sediments can be classified into the following groups: a "protoplatform" of metamorphosed sediments at
15-544: Is covered by Pliocene , Pleistocene , and Holocene siliciclastic -bearing sediments deposited during sea-level fluctuations and filling in of the Gulf Trough beginning in the late Tertiary and Quaternary . 27°39′44″N 84°01′44″W / 27.6622°N 84.0289°W / 27.6622; -84.0289 This article about a specific oceanic location or ocean current is a stub . You can help Misplaced Pages by expanding it . Platform (geology) In geology,
20-685: Is now the African Plate when the supercontinent Pangaea rifted apart in the middle Triassic and possibly early-middle Jurassic. It then secured to the North American craton . One of the early geologic structures is the Peninsular Arch which formed during the Jurassic. The oldest sediments that are exposed are Eocene carbonates found in the Avon Park Formation . Most of the state of Florida
25-676: The platform's edge. On the gulf side the platform ends over 100 miles (160 km) to the west of the modern shoreline, where a massive cliff rises over 6,000 feet (1,800 m) from the 10,600 feet (3,200 m) depth of the gulf floor. The western reaches of the platform just off Tampa were explored by the submersible DSV Alvin . Examination has placed the depth of carbonate rocks at greater than 20,000 feet (6,100 m). The platform's basement rocks include Precambrian – Cambrian igneous rocks , Ordovician – Devonian sedimentary rocks , and Triassic – Jurassic volcanic rock. Florida's igneous and sedimentary foundation separated from what
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