[meteorite-list] Grein 004/Tafassasset

From: Norbert Classen <riffraff_at_meteoritecentral.com>
Date: Wed, 26 Nov 2008 22:23:14 +0100
Message-ID: <F2B09BBD7B08468BB5053F46EC687A7E_at_lunatic>

Dear Zelimir,

Yes, the "Freiburg mass" surely is Tafassasset - no doubt about that. And
Dr. Otto won't do any further work on it because he emerited from Freiburg
University in the meantime. But if you like to ask him for details about the
Freiburg mass I'm sure he is willing to provide you with a wealth of
information :-)

Best,
Norbert

PS: You are absolutely correct about the TKW of Tafassasset - the original
MetBull includes both, the Freiburg mass, and the additional masses that
were studies in France.

-----Urspr?ngliche Nachricht-----
Von: Zelimir Gabelica [mailto:Zelimir.Gabelica at uha.fr]
Gesendet: Mittwoch, 26. November 2008 17:51
An: meteorite-list at meteoritecentral.com
Cc: Norbert Classen; dellenit at aon.at; bernd.pauli at paulinet.de; Zelimir
Gabelica
Betreff: Grein 004/Tafassasset

Hi Norbert, Bernd, Harald, List,

Thank you very much for the info about "Grein 004/Tenere 001/Tafa".
I indeed read that somewhere sometimes but I have not my archives on hand
here in France (BM Met. Catalog (Grady) indeed currently gives most of the
meteorite synonyms).

Bernd said:

"Grein 004" as well as "Tenere 001" are just synonyms for the Tafassasset
Freiburg mass, a single stone weighing 3610 grams.
It's no pairing.

Bernd, Norbert, does that mean that the tkw for Tafassasset is then 110 kg
(Franch find) + 3.61 kg ("Grein 004") = 113.61 kg ? (thus 27 at 113.61kg and
not 26 at 110 kg as in "A to Z" ?).
Met. Bull. indeed reports the tkw as 114 kg (approx), which well fits the
figure.

The official type so far is CR-an (Met. Bull.), or PAUNGR ("A to Z"). Do you
agree ?
I know that both meteorites were studied separately and that the real type
could not be defined.

Note that Weir (his web site) reports, for T-1 (= Tenere 001), a total
weight of exactly 3.636 kg, also that is "brachinite-related" and that Tafa
itself (separately listed by Weir but said being paired with T-1) is a
"PAUNGR, possibly CR-related".
More recent studies seem to still question that CR-relation...

I understand the real type is yet to be defined and that the tkw is close to
27 at 114 kg, more specifically 12 at 113.636 kg

Norbert, do you think Prof Otto knows more on that or whether they continue
to study this meteorite in Freiburg ?

And Bernd, what you mean by "it's no pairing" ? Everybody seems to agree so
far that the "Freiburg mass" is also Tafa. (?)

All my best,

Zelimir


A 12:19 26/11/2008 +0100, vous avez ?crit :
>Hi Zelimir,
>
>I don't know for NWA 3144, but "Grein 004" is a synonym for Tafassasset
>- I'm pretty sure of that. "Grein 004" was a working name used for the
>smaller mass which was later named as the Tafassasset "Freiburg mass",
>classified and studied by my friend Dr. Otto in Freiburg. You might
>want to contact Juergen Otto in this matter, just to make sure - he can
>be reached at Juergen.Otto at minpet.uni-freiburg.de
>
>Hope this helps...
>
>All the best,
>Norbert
>
>-----Urspr?ngliche Nachricht-----
>
>Hi List,
>
>Heredown is a message of Roger Warin (Belgium) that he apparently can
>not send through his server.
>
>I have my own question:
>does anybody know the official status of meteorite "Grein 004" ? (not
>in Met. Bull.)
>
>Thanks!
>
>Zelimir
>----------------------
>
>Hello List,
>
>I have put some pics of NWA 3144 (CV3) thin sections on our local site.
>See here:
>http://www.agab.be/meteorites/Thin/thin.html
>
>Met. Bull. reports that this meteorite (found or purchased by the
>Hup?s) still has a provisional status.
>I'd be glad to learn more about this meteorite.
>Could someone provide some data (if any) or send further comments on
>its status ?
>Thanks and all the best,
>
>Roger.
>
>
>
>Prof. Zelimir Gabelica
>Universit? de Haute Alsace
>ENSCMu, Lab. GSEC,
>3, Rue A. Werner,
>F-68093 Mulhouse Cedex, France
>Tel: +33 (0)3 89 33 68 94
>Fax: +33 (0)3 89 33 68 15
>
>______________________________________________
>http://www.meteoritecentral.com
>Meteorite-list mailing list
>Meteorite-list at meteoritecentral.com
>http://six.pairlist.net/mailman/listinfo/meteorite-list

Prof. Zelimir Gabelica
Universit? de Haute Alsace
ENSCMu, Lab. GSEC,
3, Rue A. Werner,
F-68093 Mulhouse Cedex, France
Tel: +33 (0)3 89 33 68 94
Fax: +33 (0)3 89 33 68 15
Received on Wed 26 Nov 2008 04:23:14 PM PST