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

[M come Meteorite Meteorites]

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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> 



M come Meteorite - Matteo Chinellato
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