[meteorite-list] Ordinary chondrites - rarest to the most common classes
From: Carl 's <carloselguapo1_at_meteoritecentral.com>
Date: Thu, 17 Dec 2009 13:56:10 -0800 Message-ID: <COL108-W18C90F4682A30DAB06ED69B860_at_phx.gbl> *Sorry for the repost. My original question did not make much sense.* ? Hi Jeff, ? I've been puzzled about what you said and perhaps I've misread or missed your comments. Why do you think the R chondrites should be included in the oc clan? I thought this was a very unique idea. ? Thank you all for this interesting topic. ? Carl ? ? ? ?Jeff Grossman wrote: ? ?>I didn't say they ARE included in the OCs... I ?said that I thought they should be. As far as I ?know, I am alone in this opinion... ? ?and ? ?>...If we take a more expansive definition of "ordinary chondrite" than most of my rather ?conservative colleagues are normally willing to accept, I would say that ?the rarest group of OCs is the R chondrites (only ~100 are known and ?many of those are paired).In addition, a number of unique ungrouped ?meteorites are OC-like.But again, I don't know of any colleagues who ?agree with me that R chondrites are in the OC class. [I would say that ?the OC class has two clans, the H-L-LL clan and the R clan]. _________________________________________________________________ Hotmail: Free, trusted and rich email service. http://clk.atdmt.com/GBL/go/171222984/direct/01/ Received on Thu 17 Dec 2009 04:56:10 PM PST |
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