[meteorite-list] message from Vincent Jacques
From: Impactika at aol.com <Impactika_at_meteoritecentral.com>
Date: Mon, 12 Apr 2010 17:23:38 EDT Message-ID: <cc82c.702692fd.38f4e95a_at_aol.com> Hello Zelimir, and all, Almahata Sitta is really a conglomerate of many different types of meteorites. So far at least half a dozen totally different ones have been found there, some ureilites fragments but also some EL, EH and even H. It would help if Vincent would contact Prof. Bischoff in Muenster since he is the one doing the classification. Or he could also ask Siegfried Haberer. And if anyone is interested I do have the latest report on Almahata Sitta. (PDF file, 29 pages) Anne M. Black http://www.impactika.com/ IMPACTIKA at aol.com Vice-President, I.M.C.A. Inc. http://www.imca.cc/ In a message dated 4/12/2010 2:13:12 PM Mountain Daylight Time, Zelimir.Gab elica at uha.fr writes: Hi List, Vincent Jacques, who is not able to send posts right now, asked me to forward you the following message: Happy speculations... Zelimir ---------------------------- Dear listo?des I would be very curious to have your ideas about the following meteorite, here above the story: In 2002, I have purchased a mix meteorites- earth stones from a Moroccan dealer during the Brussel?s mineral show. 60% of them was meteorites (many chondrites, one little eucrite, and some magnetics strange stones, terrestrials following my desert & meteorite experience) One of them showed a very strange lithology. Earth rock or meteorite? My first impression after cutting was ?a simple rock from Sahara?? but? a little magnetic attraction on one side and some cm? of very thick chocolate alteration on other side (old fusion crust?) asked to more investigations. The first question: ?Meteorite or not?? has been resolved in 2006 by prof Jedwab (University of Brussel?s) during a quick microprobe analysis. ?With lot of hesitation, it?s a meteorite, congratulation? He said: ?probably a very very old weathered chondrite, no interesting? perhaps achondrite, but my analysis is not perfect. I found only one little Fe-Ni flake. I think that was a mud aggregate, but it?s a meteorite? Other visual submission to prestigious institutions was blocked during the first contact: ?Oh, if it?s a meteorite, it is so weathered, no interest to study it? probably a little ordinary chondrite.? Recently, I have submitted a fragment of this ?rejected ugly meteorite? to a Belgian laboratory, who studies several meteorites including Antarctica meteorites from summer 2009-2010 collect. The first result is fall some days later: The meteorite is very close to ureilite group, but? there is a little problem. It contains an unusual part of pure carbon. Analysis continues at this time. We have searched equivalent meteorites, without result, except for Almahata Sitta meteorite. On internet, the following link shows a electronic photo of Almahata sitta. Photo's are very similar. Please, compare it with following electronic pictures of my ?rejected meteorite?. Almahata Sitta electronic photos (scroll the screen): <http://www.universetoday.com/2009/03/25/meteorites-found-in-africa-from-fir st-predicted-asteroid-hit/natureasteroids3/>http://www.universetoday.com/200 9/03/25/meteorites-found-in-africa-from-first-predicted-asteroid-hit/naturea steroids3/ My ?ugly meteorite? <http://www.heberger-image.fr/view.php?image=96119_kkc01.jpeg>http://www.heb erger-image.fr/view.php?image=96119_kkc01.jpeg Electronic images of my ?ugly meteorite? : <http://heberger-image.fr/album_user_view.php?nom_album=Carbon%20rich%20urei lite&id_view=c2aee86157b4a40b78132f1e71a9e6f1>http://heberger-image.fr/album _user_view.php?nom_album=Carbon%20rich%20ureilite&id_view=c2aee86157b4a40b78 132f1e71a9e6f1 Each square and reticule corresponds to an analysis area. Result on request by square if you are interested. I would be very curious to read you. Best regards, Vincent Prof. Zelimir Gabelica Universit? de Haute Alsace ENSCMu, Lab. GSEC, 3, Rue A. Werner, F-68093 Mulhouse Cedex, France Tel: +33 (0)3 89 33 68 94 Fax: +33 (0)3 89 33 68 15 Received on Mon 12 Apr 2010 05:23:38 PM PDT |
StumbleUpon del.icio.us Yahoo MyWeb |