[meteorite-list] What does Shock Stage 6 look like?
From: j.divelbiss_at_att.net <j.divelbiss_at_meteoritecentral.com>
Date: Thu Apr 22 10:18:04 2004 Message-ID: <122520031824.22343.2e34_at_att.net> maybe this is my answer http://www.lpi.usra.edu/meetings/lpsc2002/pdf/1053.pdf John > To clarify...there is some shock line evidence...small cracks here and there > with a couple chondrules cracked in half. > > John > > > > > Hello all, > > > > I'm looking at a few slices of some unclassified NWA meteorites sent to me > > from another list member to help him try to identify a few, and one of them > > has a very strange makeup to it. It is a meteorite first off. Nice fusion > > crust is evident on the back of this end piece. Not much weathering...a bit > > of a stained rind but hardly noticeable. > > > > It is a chondrite or related because it has a few distinct black porophrytic > > chondrules...but the rest of the matrix is igneous looking filled with long > > lathes of lighter glass which is darkened by other minerals that must include > > magnetite. No metal is evident, but it is paramagnetic...not strong but more > > than most LL's for sure. No veins or shock lines are evident. > > > > If had not seen chondrules I would be sure it was a planetary basalt or > > similar. What is it? > > > > Could this be a highly shocked and blackened L6 or LL6, or maybe more like > > the same for a CK6. Or maybe something new...another primitive chondrite/or > > > some kind of transitional material that it unique? > > > > The lack of metal visually along with it's decent paramagnetism is strange. > > > > As I said in my subject line "What does a shock stage 6 look like?" > > > > I'll add one more "Has anyone seen a chondrite with an igneous looking > > texture?" I would love to thin section this baby. It is so strange. > > > > John > > > > > > > > ______________________________________________ > > Meteorite-list mailing list > > Meteorite-list_at_meteoritecentral.com > > http://www.pairlist.net/mailman/listinfo/meteorite-list > > > ______________________________________________ > Meteorite-list mailing list > Meteorite-list_at_meteoritecentral.com > http://www.pairlist.net/mailman/listinfo/meteorite-list Received on Thu 25 Dec 2003 01:24:16 PM PST |
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