[meteorite-list] Grein 004/Tafassasset

[Zelimir Gabelica]

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 écrit :
>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
>
>-----Ursprüngliche 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 Hupés)
>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
>Université 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
>
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Prof. Zelimir Gabelica
Université 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