Dear John and List, In simple terms, NWA 1648 was voted in as a polymict Diogenite becuase it is mostly composed of orthopyroxene and the ratios indicated that several Diogenitic parent rocks were sampled.
All the best, Adam ----- Original Message ----- From: <[EMAIL PROTECTED]> To: "Adam Hupe" <[EMAIL PROTECTED]> Cc: "Martin Altmann" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Wednesday, May 26, 2004 10:41 AM Subject: Re: [meteorite-list] Polymict EUC vs. HOW - NWA1109 ? (& polymict diogenites -NWA 1648) > Adam, > > I have a question along the same lines related to NWA 1648. Could you summarize the differences between a polymict diogenite (like NWA 1648) and howardites? Does a polymict diogenite have more (or just more varied) diogenite in them than the typical howardite? > > I just got a thin section of NWA 1648 from Jeff Rowell and it has very little, if any, needle like plagioclase typcially seen in eucrite material. Maybe that fact alone is telling me that it is mostly diogenite? > > Thanx in advance, > > John > > > > > ______________________________________________ > > 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
