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Who provided the first conclusive evidence of the origin of Barringer Meteor Crater as an impact crater?
Edward Chao and Eugene Shoemaker
Albert Einstein and Stephen Hawking
Charles Darwin and Alfred Wallace
Henry David Thoreau and Ralph Waldo Emerson
Answer
Edward Chao and Eugene Shoemaker were the first to provide conclusive evidence that Barringer Meteor Crater was formed by an impact. They discovered the presence of shocked quartz in the crater, which is a mineral that is only formed under extreme pressure, such as that which would be caused by an impact.
Eugene Merle Shoemaker: Exploring Earth and Beyond
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