[meteorite-list] Glorieta Mountain
From: Steve Schoner <steve_schoner_at_meteoritecentral.com>
Date: Thu Apr 22 10:27:44 2004 Message-ID: <20031103160331.77973.qmail_at_web12706.mail.yahoo.com> --0-241236462-1067875411=:77064 Content-Type: text/plain; charset=us-ascii Harlan and all. Marjahlati does have fusion crust, but it is much blacker than what I have seen on Glorieta. The main mass of Marjahlati was broken on impact and the main piece sat outside of the Russian Academy for years and was picked at for its olivine crystals. These crystals were used as a standard for olivine, at least that is what I was told. Now, Marjahlati has two types of olivine. Gem quality and the powder type, like Imilac. The two meteorites, though different isotopic ally appear to be structurally related. For years, the powdered olivines of Imilac were interpreted as weathered olivine.... I don't think so, I think that though weathering has occurred the structure of Marjahlati does have similar shattered olivines. These in flight and breakup often get scooped out so that pieces fall that have no olivine remaining. In the case of Marjahlati it was reported that the main mass, the only one recovered, fell on a granite outcrop and was shattered, but hoards of people that were bathing on the lake shore reported that the water off shore was peppered with numerous splashes from falling meteorites. Who knows how many pallasites are on the lake bottom.... But the problem now is that that lake was the site of major battles during WWII. There could be huge numbers of shells and bombs there now, as during the war, I think that the lake was a route for supplies to bolster Leningrad. It was bombed repeatedly by the NAZI's during the months that the ice was thick enough to allow the supply lines to go over it. So, if this is true... I would not venture to search for meteorites there. As for the olivine, in pallasites, I have noticed, especially with Glorieta that if they develop a crust it is usually black from the melt of the iron that surrounds them. I have not seen any olivines with their own unique fusion crust. It could be that they simply fracture under heat, until nothing is left. Nininger noted that in Glorieta the "thumbprints" were often the size of olivines, and that many of the small irons have these "thumbprints" See: http://www.geocities.com/american_meteorite_survey/GLORIETA.html These "thumbprints" were according to Nininger, the result of the olivine being stripped out of the iron during the final phases of the flight. So where is that olivine now... It is most likely scattered all over the strewnfield in small grains. In 1986 I found a nickel sized olivine crystal. I picked it up and wondered about it, as one side had a very thin coating of black, a fusion crust. I could not believe that I had found such a nice crystal, all with my eyes and not with a detector (detector would not pick it up anyway). I would show it if I had it, for the pocket that I put it in had a hole.... Ugh! So, maybe someone with good eyes will someday find it again. Steve Schoner/ams harlan trammell <skyrox_at_hotmail.com> wrote: glorieta IS my favorite meteorite because of exactly what you said+ steve's incredible quest occupying a major part of his life that paid of for him. i have been buying little glorietas on ebay and love them. i have one with a crust fresher than most sikhotes. the individuals are great and the junky ones are really fun to cut, polish or etch. truly a great american skyrock indeed! oh, exacly WAHT is the melting point of olivene? is this melting point acheived during reentry or does the olivene just heat up, crack and "flake"out of those holes? also, if marjahlati is a pallasite fall, where are the crusted individuals like glorieata? >From: "MARK BOSTICK" >To: "Meteorite List" >Subject: [meteorite-list] Glorieta Mountain >Date: Sun, 2 Nov 2003 20:29:57 -0600 > >Hello Everybody, > >Just spent the last few days at Glorieta Mountain....and the somewhat local casinos. > >Man are those little irons hard to find. The mountains in this region are a soft gravel sand like mixture that makes walking around them hard, being 3500 ft up doesnt help either. I had to stop and take a rest every thirty minutes or so to keep from tiring out. > >I went with a local collector, Jerry Calvert, and together we found two meteorites, one each. Mine a tiny droplet and his a ~10g with a neat shape. > >Together we spent probley $500 on the trip and four days of time. Makes you respect Glorieta Mountain hunters a little more. > >I have about 250 e-mails so please bear with me for a couple days. > >Mark Bostick >www.meteoritearticles.com --------------------------------- Concerned that messages may bounce because your Hotmail account has exceeded its 2MB storage limit? Get Hotmail Extra Storage! ______________________________________________ Meteorite-list mailing list Meteorite-list_at_meteoritecentral.com http://www.pairlist.net/mailman/listinfo/meteorite-list --------------------------------- Do you Yahoo!? Exclusive Video Premiere - Britney Spears --0-241236462-1067875411=:77064 Content-Type: text/html; charset=us-ascii <DIV> <DIV>Harlan and all.</DIV> <DIV> </DIV> <DIV>Marjahlati does have fusion crust, but it is much blacker than what I have seen on Glorieta. The main mass of Marjahlati was broken on impact and the main piece sat outside of the Russian Academy for years and was picked at for its olivine crystals.</DIV> <DIV> </DIV> <DIV>These crystals were used as a standard for olivine, at least that is what I was told.</DIV> <DIV> </DIV> <DIV>Now, Marjahlati has two types of olivine. Gem quality and the powder type, like Imilac. The two meteorites, though different isotopic ally appear to be structurally related. For years, the powdered olivines of Imilac were interpreted as weathered olivine....</DIV> <DIV> </DIV> <DIV>I don't think so, I think that though weathering has occurred the structure of Marjahlati does have similar shattered olivines.</DIV> <DIV> </DIV> <DIV>These in flight and breakup often get scooped out so that pieces fall that have no olivine remaining. </DIV> <DIV> </DIV> <DIV>In the case of Marjahlati it was reported that the main mass, the only one recovered, fell on a granite outcrop and was shattered, but hoards of people that were bathing on the lake shore reported that the water off shore was peppered with numerous splashes from falling meteorites.</DIV> <DIV> </DIV> <DIV>Who knows how many pallasites are on the lake bottom.... But the problem now is that that lake was the site of major battles during WWII. There could be huge numbers of shells and bombs there now, as during the war, I think that the lake was a route for supplies to bolster Leningrad. It was bombed repeatedly by the NAZI's during the months that the ice was thick enough to allow the supply lines to go over it.</DIV> <DIV> </DIV> <DIV>So, if this is true... I would not venture to search for meteorites there.</DIV> <DIV> </DIV> <DIV>As for the olivine, in pallasites, I have noticed, especially with Glorieta that if they develop a crust it is usually black from the melt of the iron that surrounds them. I have not seen any olivines with their own unique fusion crust. It could be that they simply fracture under heat, until nothing is left. </DIV> <DIV> </DIV> <DIV>Nininger noted that in Glorieta the "thumbprints" were often the size of olivines, and that many of the small irons have these "thumbprints"</DIV> <DIV> </DIV> <DIV>See: <A href="http://www.geocities.com/american_meteorite_survey/GLORIETA.html">http://www.geocities.com/american_meteorite_survey/GLORIETA.html</A></DIV> <DIV> </DIV> <DIV>These "thumbprints" were according to Nininger, the result of the olivine being stripped out of the iron during the final phases of the flight.</DIV> <DIV> </DIV> <DIV>So where is that olivine now... It is most likely scattered all over the strewnfield in small grains.</DIV> <DIV> </DIV> <DIV>In 1986 I found a nickel sized olivine crystal. I picked it up and wondered about it, as one side had a very thin coating of black, a fusion crust. I could not believe that I had found such a nice crystal, all with my eyes and not with a detector (detector would not pick it up anyway). </DIV> <DIV> </DIV> <DIV>I would show it if I had it, for the pocket that I put it in had a hole....</DIV> <DIV> </DIV> <DIV>Ugh!</DIV> <DIV> </DIV> <DIV>So, maybe someone with good eyes will someday find it again.</DIV> <DIV> </DIV> <DIV>Steve Schoner/ams</DIV> <DIV><BR><B><I>harlan trammell <skyrox_at_hotmail.com></I></B> wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <DIV> <DIV> <P><BR><BR></P> <DIV> <DIV></DIV> <P>glorieta IS my favorite meteorite because of exactly what you said+ steve's incredible quest occupying a major part of his life that paid of for him. i have been buying little glorietas on ebay and love them. i have one with a crust fresher than most sikhotes. the individuals are great and the junky ones are really fun to cut, polish or etch. truly a great american skyrock indeed! oh, exacly WAHT is the melting point of olivene? is this melting point acheived during reentry or does the olivene just heat up, crack and "flake"out of those holes? also, if marjahlati is a pallasite fall, where are the crusted individuals like glorieata?<BR><BR></P></DIV></DIV> <DIV></DIV>>From: "MARK BOSTICK" <THEBIGCOLLECTOR_at_MSN.COM> <DIV></DIV> <DIV></DIV>>To: "Meteorite List" <METEORITE-LIST_at_METEORITECENTRAL.COM> <DIV></DIV> <DIV></DIV>>Subject: [meteorite-list] Glorieta Mountain <DIV></DIV> <DIV></DIV>>Date: Sun, 2 Nov 2003 20:29:57 -0600 <DIV></DIV> <DIV></DIV>> <DIV></DIV> <DIV></DIV>>Hello Everybody, <DIV></DIV> <DIV></DIV>> <DIV></DIV> <DIV></DIV>>Just spent the last few days at Glorieta Mountain....and the somewhat local casinos. <DIV></DIV> <DIV></DIV>> <DIV></DIV> <DIV></DIV>>Man are those little irons hard to find. The mountains in this region are a soft gravel sand like mixture that makes walking around them hard, being 3500 ft up doesnt help either. I had to stop and take a rest every thirty minutes or so to keep from tiring out. <DIV></DIV> <DIV></DIV>> <DIV></DIV> <DIV></DIV>>I went with a local collector, Jerry Calvert, and together we found two meteorites, one each. Mine a tiny droplet and his a ~10g with a neat shape. <DIV></DIV> <DIV></DIV>> <DIV></DIV> <DIV></DIV>>Together we spent probley $500 on the trip and four days of time. Makes you respect Glorieta Mountain hunters a little more. <DIV></DIV> <DIV></DIV>> <DIV></DIV> <DIV></DIV>>I have about 250 e-mails so please bear with me for a couple days. <DIV></DIV> <DIV></DIV>> <DIV></DIV> <DIV></DIV>>Mark Bostick <DIV></DIV> <DIV></DIV>>www.meteoritearticles.com <DIV></DIV> <DIV></DIV> <DIV></DIV></DIV><BR clear=all> <HR> <A href="http://g.msn.com/8HMAENUS/2752??PS=">Concerned that messages may bounce because your Hotmail account has exceeded its 2MB storage limit? Get Hotmail Extra Storage!</A> ______________________________________________ Meteorite-list mailing list Meteorite-list_at_meteoritecentral.com http://www.pairlist.net/mailman/listinfo/meteorite-list</BLOCKQUOTE></DIV><p><hr SIZE=1> Do you Yahoo!?<br> Exclusive Video Premiere - <a href="http://launch.yahoo.com/video/?1093432&fs=1&redirectURL=http://launch.yahoo.com/promos/britneyspears/">Britney Spears</a> --0-241236462-1067875411=:77064-- Received on Mon 03 Nov 2003 11:03:31 AM PST |
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