Geology of Florida

The emergent portion of the platform was created during the Eocene to Oligocene as the Gulf Trough filled with silts, clays, and sands.

The limestone is topped with sandy soils deposited as ancient beaches over millions of years as global sea levels rose and fell.

During the last glacial period, lower sea levels and a drier climate revealed a much wider peninsula, largely savanna.

[6] The emergent portion of the platform was created during the Eocene to Oligocene as the Gulf Trough filled with silts, clays, and sands.

In January 1880, Cuba was the center of two strong earthquakes that sent severe shock waves through the city of Key West, Florida.

[10] On January 28, 2020, a 7.7 magnitude earthquake between Cuba and Jamaica was felt in Florida, causing many office and residential buildings in Miami to be evacuated.

The structure of the Florida platform , the foundation of which came from the African Plate over 200 million years ago.
Calcite crystals in fossilized clamshell found in Fort Drum limestone deposit