AW: [meteorite-list] Enough is Enough, Now NWA 1877

From: John Birdsell <birdsell_at_meteoritecentral.com>
Date: Mon Sep 13 11:54:18 2004
Message-ID: <4145C292.7080406_at_email.arizona.edu>

Hello Stan and List. Yes, this was exactly the point that we made in an
earlier posting (The Probem with Reductionism ad Infinitum). The
members of this list have not yet received any response from Adam on
this matter and we wonder if he or anyone else have a reasonable
explanation for this apparent double standard.

-John & Dawn



stan . wrote:

>
>> Regarding the different procedure for e.g. NWA / Gao-Guenie - this
>> issue was addressed
>> in an email by Jeff Grossman dated Sept. 9, 2004 (see below).
>>
>> Gao-Guenie can be treated like Allende or Holbrook in this context as
>> it doesn't apply to areas of dense meteorite concentration.
>
>
>
> but what about stones like nwa 869? technically each one of them nees
> it's own nwa number and must be classified...
>
> my argument against the current guidelines is such:
>
> if a person were to submit 'x' new find comprising of many fragments
> of a meteorite, classification can be done based upon a representative
> thin section of only 1 fragment (or even a few tinsections) - even if
> there are many MANY fragements to the find. all of the fragments get
> the same nwa number with little or no testing done to them.
>
> now if more material if found in the exact same place, by the same
> people, and is the exact same rare classification as the orginal find
> - but it's found after the original stuff is published - then the new
> material must have thermoluminecence studies, cosmic ray exposure, and
> oxygen isotopse data taken before the material will be considered
> paired to the orignial find.
>
> I challange anyone to give me a valid scientific reason why material
> sumbited before publishing can all be considered nwa xxx based upon a
> cursory visual examination - yet material found after a write up in
> the met bul requires exhaustive additional testing to qualify as a
> pairing - testing that science make take years to complete for even
> the most exotic meteorites such as martian and lunars.
>
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Received on Mon 13 Sep 2004 11:53:54 AM PDT