[meteorite-list] Stan's NWA 2965 EL6/7 (or Aubrite) Meteorite

From: M come Meteorite Meteorites <mcomemeteorite2004_at_meteoritecentral.com>
Date: Fri, 1 Dec 2006 16:23:02 +0100 (CET)
Message-ID: <926575.22372.qm_at_web26203.mail.ukl.yahoo.com>

I doubt many this material is a aubrite seen I have
the same material in analysis and for the moment any
classification of Aubrite...a first piece I have buy
years ago and the analysis have confirm a EL6
enstatite

Matteo

--- MexicoDoug <MexicoDoug at aim.com> ha scritto:

> Mark,
>
> There is no lack of terminology. Yours is an
> interesting point if you
> consider it an achondrite, rather than some
> intermediate, and don't want to
> get into semantic issues with a nomenclature
> work-in-progress. David Weir
> calls them "Distinct recrystallized oval
> inclusions". He also suggests the
> name "chondrule ghost". You can find more
> information and another photo on
> the meteoritestudies.com website, which I will
> mention a bit of here:
>
> See:
>
http://www.lpi.usra.edu/meetings/lpsc2005/pdf/1913.pdf
> The referenced article from the University of
> Arizona Laboratory (on
> potentially paired NWA 2736) calls them "oval
> inclusions", allowing the
> possibly they could be "relict chondrules" in a
> "metamorphosed chondrite".
> Thus, it sounds to me like some scientists don't
> feel the classification is
> cast in stone any more than the ghosts. So that
> would leave it to personal
> preference since the term you choose can reflect
> competing hypotheses of
> formation for the weathered meteorite.
>
> If the thrust of your email is to reduce it to a one
> word label we can all
> agree upon and won't be too nerdish, and/or don't
> want to call them any kind
> of chondrule because it doesn't fit neatly, I would
> think in casual
> conversation we could just call them "ovals"as an
> obvious abbreviation for
> "oval inclusion".
>
> I think one of David's terms, "ghost chondrules"
> works best for me since
> some people believe in ghosts and others think they
> are bogus. Another
> option for those with a sense of humor could be
> "DROIDS" = distinct
> recrystallized oval inclusion dohickies":-)
>
> Best wishes, Doug
>
>
> ----- Original Message -----
> From: "MARK BOSTICK" <thebigcollector at msn.com>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Friday, December 01, 2006 6:44 AM
> Subject: [meteorite-list] Stan's NWA 2965 EL6/7 (or
> Aubrite) Meteorite
>
>
> > Hello all,
> >
> > I received today a couple specimens of Stan's NWA
> 2965. This has been a
> > somewhat controversal meteorite on the list, so
> forgive me for going
> > around
> > the controversy a little and showing some
> photographs of the meteorite. If
> > anyone is interested in photographs of a higher
> res, drop me an e-mail.
> >
> > http://www.meteoritearticles.com/colnwa2965.html
> >
> > If I can start a different controversy around the
> meteorite....using the
> > term chondrules with achondrites does not seem
> right to me. Not because
> > achondrite means without chondrules, but because
> the round inclusions in
> > achondrites have different origins. However, I
> like everyone else (?),
> > lack
> > a better term. Maybe the IAU can work on this
> next....:^)
> >
> > Clear Skies,
> > Mark Bostick
> > Wichita, Kansas
> > www.meteoritearticles.com
> > www.kansasmeteorites.com
> > www.imca.cc
> >
> >
> > ______________________________________________
> > Meteorite-list mailing list
> > Meteorite-list at meteoritecentral.com
> >
>
http://six.pairlist.net/mailman/listinfo/meteorite-list
> >
>
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>


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Received on Fri 01 Dec 2006 10:23:02 AM PST