17 Recharge and Flow 9

17 Recharge and Flow 9 - Ancient Depression Lakes Linear...

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Ancient Intracoastal Lagoon System. Depressions were formed from wave action and water currents. Barrier islands and dunes became an obstacle that prevented water from flowing east to the ocean as sea levels dropped Water collected in the flat valley and in larger depressions creating the river an a series of lakes along the river Ancient Depressions: St. Johns River Atlantic Barrier Island and Reefs More than 100,000 years ago, the area of land that now comprises the river was connected to the Atlantic Ocean
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Unformatted text preview: Ancient Depression Lakes Linear chains of lakes elongated In the direction of river flow Clusters of solution lakes: Random orientation Sinkhole Lakes Lake George Ancient Depression Lakes 2 nd largest lake In Florida (now) Conversion of the littoral zone on the northern side of Lake Apopka to farm fields in the previous century reduced its surface area by 19,000 ac. . Lake Apopka Next: Lakes around the World...
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17 Recharge and Flow 9 - Ancient Depression Lakes Linear...

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