[meteorite-list] Meteorite Picture of the Day

From: Mendy Ouzillou <ouzillou_at_meteoritecentral.com>
Date: Fri, 24 Feb 2012 08:49:07 -0800
Message-ID: <003301ccf314$39e0efc0$ada2cf40$_at_com>

As a big fan and collector of impact craters on meteorites, I'd enjoy
hearing opinions on how they formed. In the MPOD, Bernd Pauli left the
following comment:" according to Buchwald (1975), the shrapnel pieces with
their ragged surfaces generally fell in the forward part of the fall ellipse
and had no time to become flight-oriented but sufficient velocity to form
large impact holes. When they broke up a second time upon impact with the
ground, they formed these ragged, bombshell-like fragments."

The key to determining how they formed (at least with flight oriented
specimens) is the presence of fusion crust on the inside of the crater as
discussed in http://www.meteorites.com.au/features/impactpits.html.
Seems like shrapnel is more difficult to figure out. Thoughts and theories?

Regards,

Mendy

-----Original Message-----
From: meteorite-list-bounces at meteoritecentral.com
[mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of
valparint at aol.com
Sent: Friday, February 24, 2012 3:00 AM
To: meteorite-list at meteoritecentral.com
Subject: [meteorite-list] Meteorite Picture of the Day

Sikhote Alin

http://www.tucsonmeteorites.com/mpod.asp
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Received on Fri 24 Feb 2012 11:49:07 AM PST