[meteorite-list] 60X image of NWA 011

From: stan . <laser_maniac_at_meteoritecentral.com>
Date: Sun Aug 22 21:35:46 2004
Message-ID: <BAY18-F192NehG7XtDI0008aba2_at_hotmail.com>

Ron
I was more or less asking if there was any NEW evidence to continue to
support the mercurian hypothesis, i thought it had been actually rulled out
instead of simply left as an unlikely suspect. Ie David Weirs web site entry
for nwa 011 said that Mn-Cr isotopse data from boddanovsky et al actually
rulled out mercury as the parent body....




>From: Ron Baalke <baalke_at_zagami.jpl.nasa.gov>
>To: meteorite-list_at_meteoritecentral.com (Meteorite Mailing List)
>Subject: Re: [meteorite-list] 60X image of NWA 011
>Date: Wed, 18 Aug 2004 09:02:00 -0700 (PDT)
>
>
> > has there been any new evidence pointing to a mercurian origin for this
> > stuff? i thought such origin was definatly rulled out in favor of a
> > carbonaceous body origin
>
>There has been speculation that NWA 011 may be from either Mercury or
>Venus.
>But it is just speculation, and it is most than likely to be from an
>asteroid.
>
> > http://aaa.wustl.edu/Work/pub_files/northwestafrica011.html
> >
>
>Quoting from the link you just provided:
>
>"The material from which NWA 011 originated may have been like some
> CH or CB chondrites, members of the CR chondrite clan, which are all
> related through oxygen isotopic compositions. The NWA 011 parent body
> is probably of asteroidal origin, possibly the basaltic asteroid
> 1459 Magnya."
>
>Ron Baalke
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Received on Sun 22 Aug 2004 09:34:17 PM PDT