[meteorite-list] Re: Jeff's Response with regard to type 7

From: Jeff Grossman <jgrossman_at_meteoritecentral.com>
Date: Thu Apr 22 09:47:11 2004
Message-ID: <5.1.0.14.2.20011115074427.0245de98_at_pop3.norton.antivirus>

You have to weigh the evidence for each one. If there is not documentation
of the criteria listed by Mittlefehldt and an attempt to differentiate
between thermal metamorphism and shock melting, then the classification
should be considered suspect. Maybe somebody on this list cares to make a
list of all the candidates, and we can talk about what they are.

jeff

At 03:23 AM 11/15/2001, herbert.raab_at_ris.at wrote:

>Jeff Grossman (via Bernd Pauli) writes:
> > Petrologic grade 7 chondrites are known from the
> > LL group.
>If I understand that correctly, then this means that
>there are no L7 and H7 chondrites? And the samples
>noted by Jeff Grossman (Uden, St. Mesmin clasts and
>LEW 88663) are the only "real" type 7 specimens
>known?
>
> Greetings,
> Herbert Raab
>
>
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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 Thu 15 Nov 2001 07:50:05 AM PST