[meteorite-list] Impact Melt Breccia Statistics / BISON

From: M come Meteorite Meteorites <mcomemeteorite2000_at_meteoritecentral.com>
Date: Thu Apr 22 10:13:09 2004
Message-ID: <20030424055403.58692.qmail_at_web10305.mail.yahoo.com>

My NWA 1701 is a Impact Melt Breccia LL5....the main
mass is in my collection site.
regards

matteo

--- Alexander Seidel <ase_at_planet-interkom.de> wrote:
> Hello Pekka and list,
>
> according to MetBase ((c) Joern Koblitz) BISON is an
> LL6 impact-melt
> breccia, shock-stage S4. It is indeed a very
> beautiful stone, slices
> of which show multi-colored clasts in a dark matrix.
> Here is what the
> MetBase record on BISON also says:
>
> "A mass of about 3kg was found about 6.8 km NE of
> Bison, olivine
> Fa31.9, Met. Bull. 62, Meteoritics, 1984, 19, p.50.
> Another piece of
> 8kg was found in 1958. A heavily shocked breccia,
> olivine Fa31.9,
> A.L.Graham et al., Cat. Met., 1985, p.73.
> Classification and mineral
> analysis, an impact-melt breccia, consisting of
> unmolten clasts and
> accessory melt-breccia clasts in a darkend matrix,
> B.Dominik and
> F.Bussy, Meteoritics, 1994, 29, p.235."
>
> Alex
> Berlin, Germany
>
> Pekka Savolainen wrote:
> >
> > Hello,
> >
> > seems I have two kind of information about Bison,
> David Weir lists
> > it as LL6 and f.e. Jenssen, Jenssen and Black as
> LL6 imb. Perhaps
> > Anne M. Black have more information, also to me
> this looks more like
> > LL6, but hard to say.
> >
> > I´m sending this also straight to Anne M. Black in
> hope to get some
> > more information about the difference in
> classifications.
> >
> > take care,
> >
> > pekka
>
>
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=====
M come Meteorite - Matteo Chinellato
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Email: mcomemeteorite2000_at_yahoo.it
Sale Site: http://www.mcomemeteorite.com Collection Site: http://www.mcomemeteorite.info
International Meteorite Collectors Association #2140
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Received on Thu 24 Apr 2003 01:54:03 AM PDT


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