METEORITE THEORY. “For one thing, “around 600 to 700 million years ago, Earth loses its craters,” notes study coauthor Bill Bottke, a planetary scientist and asteroid expert at the Southwest Research Institute in Boulder, Colorado. Some ancient craters still exist on stable continental cores named cratons, but they are few and far between. (Recently, a city-size impact crater was found under the ice in Greenland.).”
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linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022