Dr. John Gifford from the University of Miami prepres for his dive Aug. 19, 2010, in North Port. Divers from the Florida Aquarium and the University of Miami brought up artifacts discovered 90 feet below the surface of Little Salt Spring.
Love that area of Fl.
Dr. John Gifford from the University of Miami prepres for his dive Aug. 19, 2010, in North Port. Divers from the Florida Aquarium and the University of Miami brought up artifacts discovered 90 feet below the surface of Little Salt Spring.
“In the last ice age, between about 10,000 and 13,000 years ago, the water level was 90 feet lower then than it is today,”
Wrong.
The sea level 15,000 years ago was 400-300 feet lower than today. The Caribbean, Gulf of Mexico, and Florida coastlines would be radically different than today’s coastlines.
About 13,500 years ago a location where Lake Superior exists today was hit by a bolide causing the ice sheet to melt catastrophically. A huge flood of fresh water flowed northerly from today’s Hudson Bay, and also down the present St. Lawrence seaway, resulting in a resurgence of cold temperatures and expanding ice sheets. The sea levels once again dropped.
In another part of the world, it wasn’t until 8000 years ago that the Persian Gulf/Arabian Gulf began to be flooded by the sea.
The article gives me a headache! Has this “spring/sinkhole” always, or nearly always had water in it? The early paleo carbon units left this stuff on a ledge 100’ down a hole in the ground? With or without water in it, that seems a stretch. Is it safe to assume it’s a fresh water spring — or not? Need Tylenol!
And the Younger Dryas.
