Unusual feature lies under Ames
AMES — It packed so much energy that surface temperatures even 100 miles away rose 500 degrees in an instant. Here at ground zero, what remained was a crater eight miles across and a half-mile deep.
But no one had a clue about the event until one day in 1991. That’s when Rex Olson , an exploration manager for Continental Resources , was looking at a computer map that his team of geologists compiled from d...
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