Microtektites Discovered inside Fossil Clams (IMAGE)

Florida Museum of Natural History

Microtektites Discovered inside Fossil Clams

Caption

Researchers found 83 tiny glassy spheres inside fossil clams from a Florida quarry. Testing suggests they are evidence of one or more undocumented meteorite impacts in Florida's distant past.

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Kristen Grace, Florida Museum

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Please credit Kristen Grace/Florida Museum.

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