Florida platform (place)
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|A relatively flat [limestone] bank that separates the [Atlantic Ocean] from the [Gulf of Mexico] covering more than 350 miles from the eastern edge of the Florida peninsula into the Gulf of Mexico and extends southward more than 450 miles encompassing most of the state of [Florida]. The [emergent] portion is the [Florida] [peninsula] which sits at the eastern edge of the platform with only a three to four [mile] sliver extending into the Atlantic Ocean. The southern rim of the platform is marked by the [Florida Keys] before dropping into the [Florida Straits]. To the west of Florida, the platform extends over one hundred miles into the Gulf at [bathymetry|depths] of less than three hundred feet. |
The platforms basement [igneous rock|rocks] are [Precambrian] to [Cambrian] in age and were once a part of the [Africa|African] plate before it was [Appalachian Mountains|sutured] to the [North American Plate] during the formation of [Pangaea] in the early [Mesozoic]. When Pangaea broke apart, the platform was left behind allowing for siliclastic and carbonate deposits to build up creating the gently sloping topography seen today. During the last [Pleistocene|glacial maximum], [mean sea level|sea levels] were four hundred feet lower exposing the Florida Platform in its entirety probably creating massive waterfalls off the the platform [escarpment].