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Tektites and strewn fields

October 11, 2012

One of the more long-standing mysteries in geology is where is the crater that accounts for the tektites and microtektites that make up the Australasian Strewn Field. So far, known craters from that time are too small and too far away. I’ll put some material on the topic in another post but for now my guess would be a crater comparable to Chesapeake in size somewhere offshore of Vietnam.

It has been hoped that studies of the North American Tektite Strewn Field would help with attempts to locate where the Australasian crater might be. There are at least two major problems: (1) Chesapeake is old – a lot has changed in 35 million years  (2) there are at least two dramatically different classes of tektites. For Geogiaites (tektites found in Georgia; see below) there is even  Meteorite Association of Georgia tektite webpage.

Then we have Bediasites found mostly in Texas

 

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From → Impact craters

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