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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 56 (1972)

Issue: 1. (January)

First Page: 158

Last Page: 160

Title: Oil Occurrence and Lower Cretaceous Carbonate-Evaporite Cyclothems in South Florida: GEOLOGICAL NOTES

Author(s): George O. Winston (2)


Most of the Lower Cretaceous of south Florida was deposited in carbonate-evaporite cyclothems typical of a backreef environment. Lithologic constituents of these cyclothems include cap, reservoir, and source rock necessary for oil accumulation. Reservoir calcarenite is formed in the middle of the cylothem. The nature of horizontal and vertical changes in facies suggests that fluctuating sea level was the cause of cyclic deposition. A cyclothem should be 125 ft (40 m) thick to provide sufficient source rock for a commercial accumulation.

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