[meteorite-list] Terdaght Meteorite Fall

From: Mr EMan <mstreman53_at_meteoritecentral.com>
Date: Tue, 27 Jan 2009 23:41:34 -0800 (PST)
Message-ID: <575352.1496.qm_at_web55203.mail.re4.yahoo.com>

Hello Bernd, How can this technically be an 4-5 if there are no chondrules? I could understand sparse but isn't "devoid" a 6 or IMB? I have some 4and 5 grade Chondrules and while some may be weakly outlined they are still present. Or does this mean none actually "none visible to the naked eye?"

Are we looking at another weird chondrite with chondrule voids?

Does it appear to be friable/loosely consolidated? Does this matrix resemble any other widespread meteorite that comes to mind?

Elton


--- On Tue, 1/27/09, bernd.pauli at paulinet.de <bernd.pauli at paulinet.de> wrote:

> From: bernd.pauli at paulinet.de <bernd.pauli at paulinet.de>
> Subject: [meteorite-list] Terdaght Meteorite Fall
> To: Meteorite-list at meteoritecentral.com
> Date: Tuesday, January 27, 2009, 4:03 PM
> Hello Steve and List,
>
> My two pieces from Philippe & L?a support your
> statement that Tamdaght has a very grayish matrix. I couldn't detect any chondrules, so H5 or H4-5 might be a good guess.
 
> We know that there are many shattered, mostly small pieces
> and one of my specimens seems to show "slickensides". If these
> slickensides are real, this can be seen as evidence of the violent forces upon impact and may explainthe sheer number of broken pieces.
>
> Best wishes,
>
> Bernd
Received on Wed 28 Jan 2009 02:41:34 AM PST