On Oct. 30, 2009 and in Hypervelocity impacts and neutron spallation
( http://six.pairlist.net/pipermail/meteorite-list/2009-October/057772.html )
E.P. Grondine wrote:
This would all be blue sky, but for those 14C spikes... Chris,
I think I got the copy of the INTCAL98 chart from one of
Hi Sterling, Rob, Chris, all -
Even Tunguska (now estimated at somewhere between 5 to 15 megatons) threw off
enough high energy (infra-red) photons to set the trees on fire for miles
around. Now some of those photons would not have been directed outward, but
instead have hit other nearby
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