[FPSPACE] Two new large and fatal impact events

[Edwin Cameron]

Passed for EPGrondine,
   
  From: epgrondine at hotmail.com
To: fpspace at friends-partners.org
Subject: Two new large and fatal impact events
Date: Sat, 19 Jan 2008 19:31:21 -0500

    
Dr. Firstone's agu abstract on the iron impacts:
http://ie.lbl.gov/mammoth/impact.html

and even better, his poster:
http://ie.lbl.gov/mammoth/AGUSF_poster_2.gif

This looks to me like 2 separate iron impacts, one in Alaska about 32,500 BCE,  another in Siberia ca. 24,000 BCE.  Dr. Firestone has a team out looking for the Alaskan impact crater.

These
impacts are different than the cometary impact(s) at 10,900 BCE - the impact
that Kenneth et al. evidenced with the impactites, and that it appears
the First Peoples here remembered.

One interesting question is whether neutrons and protons are being released in large hypervelocity impacts, leading to increases in 14C and 10Be. 

BTW - Mars is a cold irradiated sulfuric acid hell hole with a near vacuum for an atmosphere, and in no way resembles Arizona or Canada.

E.P. Grondine
Man and Impact in the Americas