Stan, Well heck then...I don't know THAT much about these things. :)
Good luck, JD -------------- Original message from "stan ." <[EMAIL PROTECTED]>: -------------- > what about the F chonderite inclusions in aubrites, specifically cumberland > falls - is that a xenolith of unrelated material, or is it unmelted > precursor material? > > and dont forget chondrules in polymict ureilites! :) > > > >From: [EMAIL PROTECTED] > >To: "stan ." , > >[EMAIL PROTECTED],[EMAIL PROTECTED], > >[email protected] > >Subject: Re: [meteorite-list] impact melts > >Date: Wed, 06 Apr 2005 20:21:57 +0000 > > > >Stan and others, > > > >Acapulcoites, Brachinites, Lodranites, and Winonaites have been thought of > >as being "primitive" achondrites that may have chondrules, especially > >acapulcoites. I've always thought of these as being "tweeners" in between > >chondrites and achondrites....differentiated a lot, but not quite absent of > >chondritic characteristics like remnant chondrules. Their age signature is > >still from longggg ago. > > > >I agree (IMHO) with others to say that impact melting alone does not make > >an achondrite. It is primarily a function of differentiation. > > > >John > > > > > >-------------- Original message from "stan ." : > >-------------- > > > > > > > > > > > > > > > > > >Achondrites - (a-kon-drites) meteorites whose composition has been > > > >significantly altered from the early/primative chondritic material. > > > >Chondrules are not present. > > > > > > you cant say that because some achonderites contain chondrules - i have > >an > > > end cut of dhofar 125, an acapulcoite that has a chondrule or two > >visable > > > > > > > > > ______________________________________________ > > > Meteorite-list mailing list > > > [email protected] > > > http://six.pairlist.net/mailman/listinfo/meteorite-list > >______________________________________________ > >Meteorite-list mailing list > >[email protected] > >http://six.pairlist.net/mailman/listinfo/meteorite-list > > > ______________________________________________ > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
