[meteorite-list] The Future of Neuschwanstein's Identity
From: Mark Fox <unclefireballmtf_at_meteoritecentral.com>
Date: Thu Apr 22 10:08:28 2004 Message-ID: <20020920173958.57230.qmail_at_web14906.mail.yahoo.com> September 20, 2002 Greetings Meteorite Enthusiasts! I am probably not far off to speculate that many list members are in suspense over the classification of the new meteorite fall... Neuschwanstein. The reasons are quite obvious, this meteoritic stone has the possibility of being connected with an actual "meteorite" shower, is a new fall, and was the fruit of arduous searching. Nevertheless, before we express our excited or more restrained reactions to its classification when it becomes available, I would like to emphasize a point that I had made months ago. We should not simply discard any relation to Pribram if Neuschwanstein is shown not to be an H5 chondrite. "What are you trying to get at?" you might say. Allow me to illustrate. If Neuschwanstein's parent body is the same as Pribram's which is commonly regarded as being from an asteroid, then at the very least, it would have to be of ample size and a good portion of it would have to be in pieces for a meteoroid stream of this nature to be possible. This would also naturally mean that the shattered pieces (preferably from a collision event) could consist of different levels of the asteroid. If we hold our current beliefs of asteroidal composition true, then we must take into consideration that these "levels" would be composed of increasing metamorphic stages as one approaches the core, which as a result, would dictate different chondritic compositions. Thus, if Neuschwanstein is not of the H5 realm, yet us not dismantle the April asteroid stream theory without further scrutiny of the evidence. As for the possibility that a meteoritic projectile could excavate a deep enough crater in a large asteroid in order to free not just meteoroids, but meteoroids of different petrologic types... is entirely likely. It is thought that such an event happened to Vesta 4, (at least as far as I am currently informed.) and is why many meteoriticists group Howardites, Eucrites, and Diogenites together into that familiar family we all know only too well: the HED group. Please feel free to correct me if you deem any of the above statements incorrect. Long strewn fields! Mark Fox Newaygo, MI USA __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com Received on Fri 20 Sep 2002 01:39:58 PM PDT |
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