re: antarctic impactPaul H bristolia at yahoo.com
Fri Aug 20 13:55:57 EDT 2004
Marco Langbroek wrote:
>If these craters indeed are impact craters and
>0.8 Ma old, that's interesting. Even without
>this new findings there's evidence for multiple
>cratering events around 0.8 Ma. Apart from the
>australasian tektites, there's Darwin crater,
>and there are the Tikal tektites from meso-America.
The Tikal tektites are indeed interesting as they
have been dated at 800,000+/-100,000 and overlap
in composition with Australasian tektites. It does get
more and more curious.
Tikal tektite references
Nagy, H. M.,2002, Tikal Report 27B: The Artifacts
of Tikal : Utilitarian Artifacts and Unworked
Material, University of Pennsylvania Museum
Hildebrand, A. R., Moholy-Nagy, H., Koeberl, C.,
May, L., and others, 1994, Tektites found in the
ruins of the Maya city of Tikal, Guatemala. Lunar
and Planetary Science, vol. 77, pp. 213-219.
Baton Rouge, LA