[meteorite-list] Xining writeup
Martin, thanks very much for the Xining classification info. I had acquired in early Spring 2012 a 21.5 g ~30% crusted fragment from a Chinese source, who also provided some data regarding the fall and its recovery, that I used to build up a provisional collection writeup until the meteorite is officially classified. I just modified this initial writeup using the new Metbull data. Here it is (for what it is worth) for those who like to associate their collection meteorites with some historical and scientific data. Enjoy or delete. - XINING History and scientific significance. On February 11, 2012, a large meteor blazed across the sky over the mountains of rural China. This meteorite exploded in flight and the fragments showered across the remote mountainous region of Huangzhong County in Qinghai Province. The fireball was witnessed by local villagers who lived near the area and pieces of the meteorite were seen to fall aross a wide area that includes a snow-covered mountain top area at an altitude over 8000 feet. Shortly thereafter villagers recovered about 10 stones within the Huangzhong county, roughly centered around Xining city of Qinghai Province. The strewnfield (ellipse of 20-30 km in length and 4-5 km in width oriented NNE) is in a mountainous region, at an average altitude of over 2500 m. The fall includes the villages of Baina, Small Sigou, Yehong, Heergai, and Baiya. The total weight of the fall is more than 100 kg. The largest meteorite landed on a mountain slope, weighing 17.3 kg and the second largest stone of about 12.5 kg was found on a mountain top of Xiaosigou village. A third stone weighing 7.5 kg landed in Baiya village, created a small crater and shattered into many pieces. A fourth stone weighing 5 kg also broke when it landed in a Muslim villager's yard in Herguy village. A fifth stone weighing about 2.5 kg landed on a concrete road creating a small crater in Yehong village, and broke into many pieces. Many pieces and fragments, among which the two lergest meteorites were bought from the villagers by meteorite lovers. Miao Buikui and Liu Xijun (Guilin University of Technology-GUT) and other researchers from the Beijing Planetarium, who heard the news of the fall and visited the fall site, recovered several meteorite samples for study and classification. Early recovered pieces of the fall show pristine black velvety fusion crust up to 1 mm thick and none of them showed signs of rusting. Later recovered specimens started to oxidize in the snow. Most stones have a similar appearance with a blocky shape and not well rounded corners. Where orientation is present, it is poorly developed. The broken exposed matrix is primarily white or virgin grey with tiny flecks of metal or metal-troilite nodules with (Fe-Ni) metal and troilite reaching 20.9 wt.%. This meteorite first appeared to be an L chondrite, possibly L5 or L6 with noticeable shock veins, slickensides and troilite inclusions. The final classification argued for a L5 type (Metbull, May 23, 2013). - I'd also appreciate to be informed in case someone notices something wrong or incomplete in this just built writeup. Thank you! Best wishes, Zelimir -- Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, Lab. LPI-GSEC, 3, Rue A. Werner, F-68093 Mulhouse Cedex, France Tel: +33 (0)3 89 33 68 94 Michael Farmer m...@meteoriteguy.com a écrit : About time:) I have some killer fragments available. Michael Farmer Sent from my iPad On May 23, 2013, at 9:59 PM, karmaka karmaka-meteori...@t-online.de wrote: Dear list members, XINING is OFFICIAL in the MetBull now: http://www.lpi.usra.edu/meteor/metbull.php?code=57470 Martin Von: Michael Farmer m...@meteoriteguy.com An: Robert Beauford robertbeauf...@rocketmail.com Cc: meteorite-list@meteoritecentral.com meteorite-list@meteoritecentral.com Betreff: Re: [meteorite-list] Feb 11, 2012, Qinhai province, Fall Datum: Thu, 23 May 2013 01:04:31 +0200 Plenty was found, but I have no idea why the Chinese have refused to publish it. I have a couple kilos of fragments if you want some. Great meteorite, at least 100 kilos recovered. Michael Farmer Sent from my iPad On May 22, 2013, at 6:02 PM, Robert Beauford robertbeauf...@rocketmail.com wrote: The early reports on the Feb 11, 2012, fall from Qinghai province seemed to indicate that it should lead to an epic recovery, but I have not heard of a subsequent name, classification, or any large number of finds... was I just not paying attention at the right moment (entirely possible), or did nobody do any hunting in earnest after the snow melted in the spring? Thanks, in advance, for any thoughts. -Robert __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com
Re: [meteorite-list] Xining writeup (hammer?)
Hi List, I notice that one of the Xining meteorites struck a concrete road surface and left behind an impact pit. Does this mean Xining is a hammer? I know, I know, hammer fall is a touchy subject, but does this qualify as one? Best regards., MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/GalacticStone Pinterest - http://pinterest.com/galacticstone RSS - http://www.galactic-stone.com/rss/126516 - On 5/24/13, Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, zelimir.gabel...@uha.fr wrote: Martin, thanks very much for the Xining classification info. I had acquired in early Spring 2012 a 21.5 g ~30% crusted fragment from a Chinese source, who also provided some data regarding the fall and its recovery, that I used to build up a provisional collection writeup until the meteorite is officially classified. I just modified this initial writeup using the new Metbull data. Here it is (for what it is worth) for those who like to associate their collection meteorites with some historical and scientific data. Enjoy or delete. - XINING History and scientific significance. On February 11, 2012, a large meteor blazed across the sky over the mountains of rural China. This meteorite exploded in flight and the fragments showered across the remote mountainous region of Huangzhong County in Qinghai Province. The fireball was witnessed by local villagers who lived near the area and pieces of the meteorite were seen to fall aross a wide area that includes a snow-covered mountain top area at an altitude over 8000 feet. Shortly thereafter villagers recovered about 10 stones within the Huangzhong county, roughly centered around Xining city of Qinghai Province. The strewnfield (ellipse of 20-30 km in length and 4-5 km in width oriented NNE) is in a mountainous region, at an average altitude of over 2500 m. The fall includes the villages of Baina, Small Sigou, Yehong, Heergai, and Baiya. The total weight of the fall is more than 100 kg. The largest meteorite landed on a mountain slope, weighing 17.3 kg and the second largest stone of about 12.5 kg was found on a mountain top of Xiaosigou village. A third stone weighing 7.5 kg landed in Baiya village, created a small crater and shattered into many pieces. A fourth stone weighing 5 kg also broke when it landed in a Muslim villager's yard in Herguy village. A fifth stone weighing about 2.5 kg landed on a concrete road creating a small crater in Yehong village, and broke into many pieces. Many pieces and fragments, among which the two lergest meteorites were bought from the villagers by meteorite lovers. Miao Buikui and Liu Xijun (Guilin University of Technology-GUT) and other researchers from the Beijing Planetarium, who heard the news of the fall and visited the fall site, recovered several meteorite samples for study and classification. Early recovered pieces of the fall show pristine black velvety fusion crust up to 1 mm thick and none of them showed signs of rusting. Later recovered specimens started to oxidize in the snow. Most stones have a similar appearance with a blocky shape and not well rounded corners. Where orientation is present, it is poorly developed. The broken exposed matrix is primarily white or virgin grey with tiny flecks of metal or metal-troilite nodules with (Fe-Ni) metal and troilite reaching 20.9 wt.%. This meteorite first appeared to be an L chondrite, possibly L5 or L6 with noticeable shock veins, slickensides and troilite inclusions. The final classification argued for a L5 type (Metbull, May 23, 2013). - I'd also appreciate to be informed in case someone notices something wrong or incomplete in this just built writeup. Thank you! Best wishes, Zelimir -- Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, Lab. LPI-GSEC, 3, Rue A. Werner, F-68093 Mulhouse Cedex, France Tel: +33 (0)3 89 33 68 94 Michael Farmer m...@meteoriteguy.com a écrit : About time:) I have some killer fragments available. Michael Farmer Sent from my iPad On May 23, 2013, at 9:59 PM, karmaka karmaka-meteori...@t-online.de wrote: Dear list members, XINING is OFFICIAL in the MetBull now: http://www.lpi.usra.edu/meteor/metbull.php?code=57470 Martin Von: Michael Farmer m...@meteoriteguy.com An: Robert Beauford robertbeauf...@rocketmail.com Cc: meteorite-list@meteoritecentral.com meteorite-list@meteoritecentral.com Betreff: Re: [meteorite-list] Feb 11, 2012, Qinhai province, Fall Datum: Thu, 23 May 2013 01:04:31 +0200 Plenty was found, but I have no idea why the Chinese have refused to publish it. I have a couple kilos of fragments if you want some. Great meteorite, at least 100 kilos recovered. Michael Farmer
Re: [meteorite-list] Xining writeup (hammer?)
Hmmm... Maybe it's best to be proactive here. All sales of Xining impact pit concrete fragments are suspended until further notice! Ed :-) - Original Message - From: Galactic Stone Ironworks meteoritem...@gmail.com To: Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, zelimir.gabel...@uha.fr Cc: meteorite-list@meteoritecentral.com Sent: Friday, May 24, 2013 10:19 AM Subject: Re: [meteorite-list] Xining writeup (hammer?) Hi List, I notice that one of the Xining meteorites struck a concrete road surface and left behind an impact pit. Does this mean Xining is a hammer? I know, I know, hammer fall is a touchy subject, but does this qualify as one? Best regards., MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/GalacticStone Pinterest - http://pinterest.com/galacticstone RSS - http://www.galactic-stone.com/rss/126516 - On 5/24/13, Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, zelimir.gabel...@uha.fr wrote: Martin, thanks very much for the Xining classification info. I had acquired in early Spring 2012 a 21.5 g ~30% crusted fragment from a Chinese source, who also provided some data regarding the fall and its recovery, that I used to build up a provisional collection writeup until the meteorite is officially classified. I just modified this initial writeup using the new Metbull data. Here it is (for what it is worth) for those who like to associate their collection meteorites with some historical and scientific data. Enjoy or delete. - XINING History and scientific significance. On February 11, 2012, a large meteor blazed across the sky over the mountains of rural China. This meteorite exploded in flight and the fragments showered across the remote mountainous region of Huangzhong County in Qinghai Province. The fireball was witnessed by local villagers who lived near the area and pieces of the meteorite were seen to fall aross a wide area that includes a snow-covered mountain top area at an altitude over 8000 feet. Shortly thereafter villagers recovered about 10 stones within the Huangzhong county, roughly centered around Xining city of Qinghai Province. The strewnfield (ellipse of 20-30 km in length and 4-5 km in width oriented NNE) is in a mountainous region, at an average altitude of over 2500 m. The fall includes the villages of Baina, Small Sigou, Yehong, Heergai, and Baiya. The total weight of the fall is more than 100 kg. The largest meteorite landed on a mountain slope, weighing 17.3 kg and the second largest stone of about 12.5 kg was found on a mountain top of Xiaosigou village. A third stone weighing 7.5 kg landed in Baiya village, created a small crater and shattered into many pieces. A fourth stone weighing 5 kg also broke when it landed in a Muslim villager's yard in Herguy village. A fifth stone weighing about 2.5 kg landed on a concrete road creating a small crater in Yehong village, and broke into many pieces. Many pieces and fragments, among which the two lergest meteorites were bought from the villagers by meteorite lovers. Miao Buikui and Liu Xijun (Guilin University of Technology-GUT) and other researchers from the Beijing Planetarium, who heard the news of the fall and visited the fall site, recovered several meteorite samples for study and classification. Early recovered pieces of the fall show pristine black velvety fusion crust up to 1 mm thick and none of them showed signs of rusting. Later recovered specimens started to oxidize in the snow. Most stones have a similar appearance with a blocky shape and not well rounded corners. Where orientation is present, it is poorly developed. The broken exposed matrix is primarily white or virgin grey with tiny flecks of metal or metal-troilite nodules with (Fe-Ni) metal and troilite reaching 20.9 wt.%. This meteorite first appeared to be an L chondrite, possibly L5 or L6 with noticeable shock veins, slickensides and troilite inclusions. The final classification argued for a L5 type (Metbull, May 23, 2013). - I'd also appreciate to be informed in case someone notices something wrong or incomplete in this just built writeup. Thank you! Best wishes, Zelimir -- Prof. Zelimir Gabelica Université de Haute Alsace ENSCMu, Lab. LPI-GSEC, 3, Rue A. Werner, F-68093 Mulhouse Cedex, France Tel: +33 (0)3 89 33 68 94 Michael Farmer m...@meteoriteguy.com a écrit : About time:) I have some killer fragments available. Michael Farmer Sent from my iPad On May 23, 2013, at 9:59 PM, karmaka karmaka-meteori...@t-online.de wrote: Dear list members, XINING is OFFICIAL in the MetBull now: http://www.lpi.usra.edu/meteor/metbull.php?code=57470 Martin Von: Michael Farmer m...@meteoriteguy.com An: Robert Beauford robertbeauf...@rocketmail.com Cc: meteorite
