EARLY HISTORY Our Dynamic Earth
Source of Map Lyndon State College
World hotter than the Present
300,000,000 years ago the continents close to geather.
An ice age in the Antartic. The Arctic land free.
Now the glacier deposits have floated
north to India, Africa and elsewhere.
Tropical forests from the tropics now in fossil forests in the Arctic.
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The dynamic action of the earth crusts over time, with mountain building and erosion has erased almost all traces of craters. Also since the earth is mostly ocean this too hides meteor stricks.
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