[meteorite-list] Claimed pairings

From: Jeff Grossman <jgrossman_at_meteoritecentral.com>
Date: Thu, 17 Jun 2010 20:04:09 -0400
Message-ID: <4C1AB7F9.3000703_at_usgs.gov>

On 2010-06-17 6:46 PM, Richard Kowalski wrote:
> Not being a professional meteoriticist, I would assume that any meteorite claimed to be paired with another needs to be studied by qualified scientists. From what I understand it is always preferable to have the scientist who did the original classification to study any meteorites submitted for possible pairing because they are 1, familiar with the material, 2, have material used for the original classification on hand for comparison and 3, are able to use the same instruments used for the original classification for any additional material being submitted.
>
> After the material has been studied and found to be paired,I would imaging that there is some peer reviewed process to announce the pairing, is there not?
>
There is not. Pairing statements occur in the bulletin, abstracts, and
peer-reviewed manuscripts, but they are rarely scrutinized. Caveat emptor.

Jeff
> We've seen with Alamhata Sitta that you can have very different classifications from the same fall and because of this extensive studies needed to be made to confirm that the stone were from the same fall, even though they were all found in the same area.
>
> It also seems to me that anyone claiming a pairing has the responsibility to provide samples for testing and is also responsible for all costs associated with this testing. The onerous of proof goes to the person claiming they have paired material. Until this scientific proof, that can and is peer reviewed for validity of the procedures used to determine the said pairing, any and all claims of a pairing should be rejected outright and in their entirety.
>
>
> --
> Richard Kowalski
> Full Moon Photography
> IMCA #1081
>
>
>
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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 17 Jun 2010 08:04:09 PM PDT