| Calvin Crater |
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Information AboutCalvin Crater |
| CATEGORIES ABOUT CALVIN CRATER | |
| astroblemes | |
| craters of the united states | |
| geography of michigan | |
| proterozoic craters | |
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It is 8.5 Km in Diameter and the age is estimated to be 450 ± 10 Million Year s ( Ediacaran ). The crater is not exposed to the surface. It lies about 100 to 400 feet below today's ground level. The crater is at . SEE ALSO EXTERNAL LINKS
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