[meteorite-list] Smoking Gun => Lake Murray???

From: Jeff Grossman <jgrossman_at_meteoritecentral.com>
Date: Sat, 06 Jan 2007 10:21:41 -0500
Message-ID: <7.0.1.0.2.20070106101852.042a2e78_at_usgs.gov>

This abstract by Frank Kyte describes what may be a relict piece of
the K-T impactor. I don't know if it was formally published elsewhere.

http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1996LPI....27..717K&amp;data_type=PDF_HIGH&amp;type=PRINTER&amp;filetype=.pdf

jeff

At 10:12 AM 1/6/2007, bernd.pauli at paulinet.de wrote:
>Steve wrote:
>
>When Rob Elliott was in Chicago back in 2002, we were talking
>about LAKE MURRAY, the iron, possibly being the smoking gun.
>
>Mike T. responded: Thanks Steve! That's the one.
>
>According to Sicree et al., Lake Murray is one of the oldest or possibly
>the oldest paleoiron (terrestrial age = 120 m.y.), but it is not the one
>that killed the dinosaurs!
>
>Reference:
>
>SICREE A.A. et al. (1997) Potential for preservation and recovery of fossil
>iron meteorites from coal, trona, limestone and other sedimentary rocks
>(Meteoritics 32-4, 1997, A121).
>
>Traces of the smoking gun may have been found in a Chicxulub
>drillcore - an impact
>breccia (suevite) only 10 mm in diameter. The authors conclude that
>it was possibly
>a carbonaceous chondrite.
>
>Reference:
>
>MORTON-BERMEA O. et al. (2003) First evidence of Chicxulub impact
>bolide projectile at the Yaxcopoil-I drill (MAPS 38-7, 2003, A101).
>
>Cheers,
>
>Bernd
>
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Dr. Jeffrey N. Grossman phone: (703) 648-6184
US Geological Survey fax: (703) 648-6383
954 National Center
Reston, VA 20192, USA
Received on Sat 06 Jan 2007 10:21:41 AM PST