Dave and List,
I believe you are seeing the individual descriptions of a variety of
clasts comprising a single large fragmental breccia meteorite. The fact
that this was such a fragmental breccia was not made clear until many of
the smaller individual lithologies were found and analyzed and
determined to belong together.
My point about NomCom concerned the issue of whether these new Bulletin
entries (e.g., NWA 2727) would be permitted to include a statement about
its likely pairing to NWA 773. I didn't think that NomCom rules would
permit this, even though it would be beneficial information for which to
have access. As Jeff acknowledged, it would be the professional journals
in which this info would be deseminated.
David
Dave Carothers wrote:
Good evening, all.
Can someone please help me out with an explanation?
In looking at the Met Bul classifications of the "pairings" we have:
NWA 773, Lunar cumulate olivine norite with regolith breccia
NWA 2700 Classification pending
NWA 2727 Lunar mare basalt/gabbro breccia
NWA 2977 Lunar gabbro
NWA 3160 Lunar mare basalt breccia
NWA 3333 Classification pending
To my military mind, it seems to me that the classifications of the above
Lunars are divergent enough to wonder how they could be paired. If they are
truely paired, shouldn't the original classifications been the same or
closer?
Thanks,
Dave
----- Original Message -----
From: "David Weir" <[EMAIL PROTECTED]>
To: "Meteorite List" <[email protected]>
Sent: Monday, July 31, 2006 3:23 PM
Subject: [meteorite-list] NWA 773 lunar pairings
List,
Well, the results are in - in the MetSoc 69th Annual Meeting abstract
#5235 that is... and just as I had suspected, NWA 773 has any brothers
and sisters: NWA 2700 (previously with Boswell), 2727 (Oakes et al.),
2977 (Farmer), 3160 (Hupe), and 3333 (Kuntz) are all considered to be
paired by the eminent scientists Zeigler, Korotev, Jolliff, Bunch, and
Irving. Of course, I'm not sure the NomCom rules allow such an official
pairing with NWA 773 after the fact, especially with no reliable
geographic coordinates. But then a future peer-reviewed journal
publication could make it officially "official" I believe. No matter,
the abstract is more than convincing if your own eyes have ever cast
doubt on their pairing. I have some revisions to make on my site.
David
______________________________________________
Meteorite-list mailing list
[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
