[texas booster]

The Carolina Bays were formed about that time.

SunkenCiv posted a discussion about a large impact in Greenland, and subsequent “splash” impacts as a result.

All about 10,400 years ago.

[SunkenCiv]

Hey, that's right...

• Geoscientists Find Large Impact Crater in Greenland

Thanks texas booster. Here's the book again, Carolina Bays formed by ejecta:

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The Cycle of Cosmic Catastrophes: Flood, Fire, and Famine in the History of Civilization by Richard Firestone, Allen West, and Simon Warwick-Smith

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