[meteorite-list] Portales Valley Classification Info

Rob Wesel nakhladog at comcast.net
Mon May 16 22:53:03 EDT 2005


I had a nice evening chat with Dr. Ruzicka a while back, this paper is the 
completion of a very long endeavor. He is very erudite and enthusiastic on 
the subject and I am glad to see the finished work. Portales Valley deserves 
it.

Rob Wesel
http://www.nakhladogmeteorites.com
------------------
We are the music makers...
and we are the dreamers of the dreams.
Willy Wonka, 1971



----- Original Message ----- 
From: "Robert Woolard" <meteoritefinder at yahoo.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Monday, May 16, 2005 7:21 PM
Subject: [meteorite-list] Portales Valley Classification Info


> Hello List,
>
>  Well for years now, I know a lot of us were puzzled
> by the classification of Portales Valley as an " H6
> ordinary chondrite". (See my article in the May 2001
> issue of Meteorite, titled " Portales Valley - A Not
> So Ordinary (Ordinary Chondrite??)! "  In the recent
> past, the classification was modified a bit, being
> changed to read as an " H6 Impact Melt Breccia ".
>
>  I am excited to be able to say that there is a
> distinct chance the true uniqueness of PV may soon be
> reflected in a possible new moniker for this
> intriguing meteorite. David Weir was kind enough to
> make me aware of a new and comprehensive paper by Alex
> Ruzicka, Marvin Killgore, David Mittlefehldt, and Marc
> Fries in the current MAPS. In this detailed work, we
> now have the proposed reclassification of PV as an "
> H7, metallic-melt breccia (primitive achondrite)",
> with the case made for a new meteorite type
> designation of "Portalesite" due to this metallic-melt
> breccia characteristic.
>
>  You can read David's updated description of PV on
> his excellent website here:
>
>    http://www.meteoritestudies.com
>
>  Many thanks to David for news of this exciting
> paper, and to the authors of the paper as well.
>
>  Sincerely,
>  Robert Woolard
>
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