[meteorite-list] Introducing NWA 3133, A Fantastic New Meteorite

From: David Weir <dgweir_at_meteoritecentral.com>
Date: Wed Oct 13 17:21:52 2004
Message-ID: <416D9C5B.C5C50BE3_at_earthlink.net>

Hey John,

You may not be too far off the mark in your speculations. Consider the
fact that Greenwood et al. (2003) have recently re-evaluated the CK
group and found that the mostly equilibrated members of the CK group are
consistent with a metamorphic progression of the CV group. They also
suggest that the few unequilibrated CK members, such as Dhofar 015, do
not exhibit the typical features of CK chondrites, but rather more
closely resemble the oxidized CV3 chondrites. Perhaps this new meteorite
would more appropriately be called a CK7? It should be interesting to
see how further studies deal with it. Kudos to the Hupes for their
conscientous collecting as always.

David

j.divelbiss_at_att.net wrote:
>
> Adam, Stan and others:
>
> This material definetly seems to be on course to being something very special. The posed questions about the CV3 relationship is intrigeuing to think about. Especially the comment about this being CV7 material when we don't have anything higher than say CV3.5 on record.
>
> Maybe the parent for CV3 material never did differentiate, while another CV body did...giving us these two variations? If the CV3 material was a surface regolith on a differentiated body, then you/I would think we would have CV4's, 5 or 6 on record with all the material found in Antarctica and the deserts to date.
>
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Received on Wed 13 Oct 2004 05:21:31 PM PDT