Thank you Bernd, Yes a metachondrite is a meta(morphic) chondrite, nothing to do with lithologies. A good example of a CR Meta-chondrite is of course Tafassasset. Goodnight. Anne M. Black _www.IMPACTIKA.com_ (http://www.IMPACTIKA.com) [email protected]_ (mailto:[email protected]) President of IMCA _www.IMCA.cc_ (http://www.IMCA.cc) In a message dated 10/21/2010 12:36:46 AM Mountain Daylight Time, [email protected] writes: Good morning Steve, Greg and List,
Greg S. wrote: "I understand a metachondrite to be a chondrite that has undergone metamorphism resulting in recrystalization. The composition is much the same as in the original chondrite. There are different affinities, such as 'H' 'L' or 'LL'. I think there are others including E's and 'C' chondrites." That's right. One further, important aspect is that they are all virtually without (relic) chondrules, devoid of chondrules with a few minor exceptions. See here: http://www4.nau.edu/meteorite/Meteorite/Metachondrites.html#En Best morning wishes, Bernd Anne M. Black http://www.impactika.com/ [email protected] Vice-President, I.M.C.A. Inc. http://www.imca.cc/ ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
