barringer meteor crater arizona |
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navigate by keyword : 175 570 ago arizona asteroid barringer colorado crater deep diameter effects environmental excavated explosion feet forming fortynine impacted iron its large massive meteor meter mile million nearly northern plateau resulting rock thousand tons wide years |
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Barringer Meteor Crater and Its Environmental Effects. Forty-nine thousand years ago, a large 30 to 50 meter diameter iron asteroid impacted the Colorado Plateau in northern Arizona. The resulting massive explosion excavated 175 million tons of rock, forming a crater nearly a mile wide and 570 feet deep. |
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