[meteorite-list] New clues about Earth’s most elusive impact crater
From: Paul <etchplain_at_meteoritecentral.com>
Date: Fri, 22 Dec 2017 17:59:12 -0600
Cavosie, A.J., N.E. Timms, T.M. Erickson, and C. Koeberl, 2017,
New clues from Earth?s most elusive impact crater: Evidence
of reidite in Australasian tektites from Thailand. Geology
Published: December 20, 2017 DOI: https://doi.org/10.1130/G39711.1
" Here we report new evidence of a rare high-pressure
phase in Australasian tektites that further constrains
the location of the source crater. The former presence
of reidite, a high-pressure polymorph of zircon, was
detected in granular zircon grains within Muong
Nong?type tektites from Thailand."
"The data presented here place further constraints on the
distribution of high-pressure phases in Australasian tektites,
including coesite and now reidite, to an area centered over
Southeast Asia, which appears to be the most likely location
of the source crater."
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Received on Fri 22 Dec 2017 06:59:12 PM PST