Younger Dryas Ground Zero

The Carolina Bays and the Nebraska Rainwater Basins are elliptical features oriented toward the Great Lakes. Their convergence point is a clue about the location of an extraterrestrial impact on the Laurentide Ice sheet that launched pieces of glacier ice in ballistic trajectories. The secondary impacts of the ice boulders created inclined conical cavities that became shallow elliptical bays by viscous relaxation.
The Neglected Carolina Bays: Ubiquitous Geological Evidence of a Cataclysm.
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Carolina Bay Survey. LiDAR Visualization Tool using Google Earth by Michael Davias. cbaysurvey.cint...
Python programs for least squares fitting of ellipses.
github.com/cit...