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Figure 146. Enhanced Thematic Mapper Plus image, acquired in May 2000 from the Landsat 7 satellite, shows the four geographic components of the South Florida Ecosystem: the Everglades (south part), Florida Bay, the Florida Keys, and the reef tract. Protected mangroves fringe virtually every visible shoreline. The upper and middle Florida Keys are an emergent 125-ka coral reef. The lower Keys are emergent fossil ooid tidal bars of the same age. Seaward of the keys lie habitats of the inner shelf, the bedrock depression beneath Hawk Channel, sands and Holocene reefs on the shallow outer shelf, and 30-m-high 80-ka fossil reefs at the shelf edge. The Gulf of Mexico is at left, Straits of Florida at right.

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Coastal & Marine Geology Program > Center for Coastal & Watershed Studies > Professional Paper 1751