[meteorite-list] Fusion crusts on stony meteorites

From: Michael Farmer <meteoriteguy_at_meteoritecentral.com>
Date: Thu, 22 Mar 2007 19:41:10 -0700 (PDT)
Message-ID: <88660.17829.qm_at_web33102.mail.mud.yahoo.com>

I agree, I dont think that it is fusion crust, more
likely a brecciated section on the edge of the
meteorite.
Michael Farmer
--- Darren Garrison <cynapse at charter.net> wrote:

> On Thu, 22 Mar 2007 21:58:51 -0400 (EDT), you wrote:
>
> >Hello Berndt et al.,
> >
> >I thought you and the list members might find
> interesting a phenomenon
> >that was shown to me by Marcin Cimala. In cutting
> an LL5 he found areas
> >where thick crust had built up and actually
> incorporated within the crust
> >small angular fragments of relatively unaltered
> meteorite. Here are scans
> >of a slice I obtained from Marcin:
> >
>
>http://img.photobucket.com/albums/v614/CaneySprings/NWA2826LL528gmMarcinCimala.jpg
> >
>
>http://img.photobucket.com/albums/v614/CaneySprings/NWA2826LL528gmMarcinCimalacloseup.jpg
> >
> >I assume that these fragments were dislodged late
> in flight while the
> >crust was still liquid but too late to be melted or
> thermally altered.
>
> I would think that is just a darker clast in the
> rock that happened to be only
> on the outer edge of that slice.
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Received on Thu 22 Mar 2007 10:41:10 PM PDT