[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: D'Orbigny TS Contributed by: Jeff Hodges http://www.tucsonmeteorites.com/mpodmain.asp __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Fw: [Geology2] Meteorite fragments discovered 20 years after bolide event in Czech Republic
Hi all, I would like to second Eric Christensen. Pavel Spurny is a respected scientist and definitely not someone who would knowingly present something questionable. - Marco - Dr Marco (asteroid 183294) Langbroek Dutch Meteor Society (DMS) e-mail: d...@marcolangbroek.nl http://www.dmsweb.org http://www.marcolangbroek.nl - __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Czech meteorite fragments 20 years
Just to play Devil's advocate, is this desert varnish, or some kind of reaction to a humid, heavily mineralized soil? Have they been shared with other institutions? It's implied that they were found buried in the ground. Perhaps they did find them, and it's some sort of alteration caused by local ard/gossan conditions. Any geos on there who might know of a mechanism that could cause a similar looking weathering product? These are just photos, which, more often than not, are very hard to interpret. I'm partly curious as I've observed some interesting rocks while prospecting high sulfide locations. Assuming they were genuinely found, in such conditions it may be possible they are 20 years old. Or they could be much older, and it's just chance that they found some very old, highly-weathered meteorites unrelated to their impact location. In such a case, is there a dating method that could determine their true terrestrial age? Yes Holbrooks are pretty fresh, but they are in a semi-arid location, in sand dunes which probably wick away moisture. Stones found in the dunes are very fresh, while some in the flats are a lot more rusty. Anne brings up a good point that diverse types can be found from one event. I'm not saying that she agrees - odds are they are planted. But I just want to keep an open mind and keep asking questions. Another possibility is that one or two team members planted them and kept other members in the dark. They may have documented removal of the last couple found, thus adding more evidence that they are legit. But while they selected similar looking stones, they actually were different types (?). Anybody know some of these team members and if they are qualified to do this sort of work/have good reputations? Is this peer reviewed? Odds are they are kooks or cheats. But maybe they are on the up and up, but simply have foolishly linked these finds to a relatively recent fall(???). It will be interesting to see what develops! Mark Bowling From: Michael Farmer via Meteorite-list meteorite-list@meteoritecentral.com To: Paul Gessler cetu...@shaw.ca Cc: meteorite-list meteorite-list@meteoritecentral.com; MEM mstrema...@yahoo.com Sent: Wednesday, October 15, 2014 5:13 PM Subject: Re: [meteorite-list] Czech meteorite fragments 20 years Not to mention they are highly desert varnished, something never seen in a wet place, and different types. Whoever pulled this scam is pretty foolish. Michael Farmer Michael Farmer On Oct 15, 2014, at 5:02 PM, Paul Gessler via Meteorite-list meteorite-list@meteoritecentral.com wrote: Looks like something that was found sitting in a Moroccan sale bin for the last 20 years. They look a lot older than 20 years to me. Paul G -Original Message- From: MEM via Meteorite-list Sent: Wednesday, October 15, 2014 4:53 PM To: Meteorite Mailing List Subject: [meteorite-list] Fw: [Geology2] Meteorite fragments discovered 20years after bolide event in Czech Republic www.sciencedaily.com/releases/2014/10/141014142736.htm Meteorite fragments discovered 20 years after bolide event in Czech Republic Date: October 14, 2014 Source: Astronomy Astrophysics Summary: Scientists have discovered meteorite fragments 20 years after the corresponding bolide was seen in the skies of the Czech Republic. This discovery was made possible by reanalyzing the trajectory, which moved the impact line by 330 meters. Interestingly, the meteorites found on the ground are of different types, pointing to a parent asteroid of heterogeneous composition. First three Benešov meteorites found in April 2011, with metal detectors. From left to right: H5 chondrite of 1.56 g, LL3.5 chondrite of 7.72 g with achondrite clast, and LL3.5 chondrite of 1.99 g [2]. Credit: Image courtesy of Astronomy Astrophysics Astronomy Astrophysics is publishing the spectacular discovery of meteorite fragments 20 years after the corresponding bolide was seen in the skies of the Czech Republic. This discovery was made possible by reanalyzing the trajectory, which moved the impact line by 330 meters. Interestingly, the meteorites found on the ground are of different types, pointing to a parent asteroid of heterogeneous composition. Collisions of meter-sized meteoroids with Earth's atmosphere are relatively rare, occurring about 40 times a year. They cause very spectacular events, known as superbolides. One of the best known such events, the Benešov bolide, occurred on 7 May 1991 at 23h 03m 46s UT over the Czech Republic. It was recorded during systematic photographic observations by the European Fireball Network and certainly ended in a multiple meteorite fall, but no meteorite was found in the weeks and years after the fall, despite many attempts. In February 2011, nearly 20 years after the event, P. Spurný and his colleagues [1]
Re: [meteorite-list] Czech meteorite fragments 20 years
Hi Mark, These guys are legit. http://cs.wikipedia.org/wiki/Pavel_Spurn%C3%BD Hope all is well with you. Carl Meteoritemax -- Love Life Mark Bowling via Meteorite-list meteorite-list@meteoritecentral.com wrote: Just to play Devil's advocate, is this desert varnish, or some kind of reaction to a humid, heavily mineralized soil? Have they been shared with other institutions? It's implied that they were found buried in the ground. Perhaps they did find them, and it's some sort of alteration caused by local ard/gossan conditions. Any geos on there who might know of a mechanism that could cause a similar looking weathering product? These are just photos, which, more often than not, are very hard to interpret. I'm partly curious as I've observed some interesting rocks while prospecting high sulfide locations. Assuming they were genuinely found, in such conditions it may be possible they are 20 years old. Or they could be much older, and it's just chance that they found some very old, highly-weathered meteorites unrelated to their impact location. In such a case, is there a dating method that could determine their true terrestrial age? Yes Holbrooks are pretty fresh, but they are in a semi-arid location, in sand dunes which probably wick away moisture. Stones found in the dunes are very fresh, while some in the flats are a lot more rusty. Anne brings up a good point that diverse types can be found from one event. I'm not saying that she agrees - odds are they are planted. But I just want to keep an open mind and keep asking questions. Another possibility is that one or two team members planted them and kept other members in the dark. They may have documented removal of the last couple found, thus adding more evidence that they are legit. But while they selected similar looking stones, they actually were different types (?). Anybody know some of these team members and if they are qualified to do this sort of work/have good reputations? Is this peer reviewed? Odds are they are kooks or cheats. But maybe they are on the up and up, but simply have foolishly linked these finds to a relatively recent fall(???). It will be interesting to see what develops! Mark Bowling From: Michael Farmer via Meteorite-list meteorite-list@meteoritecentral.com To: Paul Gessler cetu...@shaw.ca Cc: meteorite-list meteorite-list@meteoritecentral.com; MEM mstrema...@yahoo.com Sent: Wednesday, October 15, 2014 5:13 PM Subject: Re: [meteorite-list] Czech meteorite fragments 20 years Not to mention they are highly desert varnished, something never seen in a wet place, and different types. Whoever pulled this scam is pretty foolish. Michael Farmer Michael Farmer On Oct 15, 2014, at 5:02 PM, Paul Gessler via Meteorite-list meteorite-list@meteoritecentral.com wrote: Looks like something that was found sitting in a Moroccan sale bin for the last 20 years. They look a lot older than 20 years to me. Paul G -Original Message- From: MEM via Meteorite-list Sent: Wednesday, October 15, 2014 4:53 PM To: Meteorite Mailing List Subject: [meteorite-list] Fw: [Geology2] Meteorite fragments discovered 20years after bolide event in Czech Republic www.sciencedaily.com/releases/2014/10/141014142736.htm Meteorite fragments discovered 20 years after bolide event in Czech Republic Date: October 14, 2014 Source: Astronomy Astrophysics Summary: Scientists have discovered meteorite fragments 20 years after the corresponding bolide was seen in the skies of the Czech Republic. This discovery was made possible by reanalyzing the trajectory, which moved the impact line by 330 meters. Interestingly, the meteorites found on the ground are of different types, pointing to a parent asteroid of heterogeneous composition. First three Benešov meteorites found in April 2011, with metal detectors. From left to right: H5 chondrite of 1.56 g, LL3.5 chondrite of 7.72 g with achondrite clast, and LL3.5 chondrite of 1.99 g [2]. Credit: Image courtesy of Astronomy Astrophysics Astronomy Astrophysics is publishing the spectacular discovery of meteorite fragments 20 years after the corresponding bolide was seen in the skies of the Czech Republic. This discovery was made possible by reanalyzing the trajectory, which moved the impact line by 330 meters. Interestingly, the meteorites found on the ground are of different types, pointing to a parent asteroid of heterogeneous composition. Collisions of meter-sized meteoroids with Earth's atmosphere are relatively rare, occurring about 40 times a year. They cause very spectacular events, known as superbolides. One of the best known such events, the Benešov bolide, occurred on 7 May 1991 at 23h 03m 46s UT over the Czech Republic. It was recorded during systematic photographic observations by the European Fireball Network
Re: [meteorite-list] Meteorite-list Digest, Vol 138, Issue 17
Thanks for this. Very cool. Carl Meteoritemax -- Love Life Eric Christensen via Meteorite-list meteorite-list@meteoritecentral.com wrote: Hi all, Pavel Spurny and his team are considered to be among the world's experts in instrumentally observed bolides. Before dismissing this story as a scam based on a single image, you may wish to read the paper in its entirety: http://www.aanda.org/articles/aa/pdf/2014/10/aa24308-14.pdf paying special attention to the local conditions where the meteorites were found. 20 years of being repeatedly tilled under farmland soil in a wet European climate is hard on meteorites. These were also thought to be meteorites that came from a violent, low-altitude disruption, so even if they initially had fusion crust or typical meteorite shapes, 20 years in the ground would have likely significantly altered their appearance. Regards, Eric Christensen --- On Wednesday, October 15, 2014 8:31 PM, meteorite-list-requ...@meteoritecentral.com meteorite-list-requ...@meteoritecentral.com wrote: Message: 1 Date: Wed, 15 Oct 2014 16:55:34 -0700 From: Michael Farmer m...@meteoriteguy.com To: MEM mstrema...@yahoo.com Cc: Meteorite Mailing List meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Fw: [Geology2] Meteorite fragments discovered20 years after bolide event in Czech Republic Message-ID: 0682f844-abe9-497e-8703-1e0dbd612...@meteoriteguy.com Content-Type: text/plain;charset=utf-8 Sorry but fake as crap, clearly ancient NWA meteorite. Pultusk stones are still being 150 years after the fall and they don't even look hardly weathers at all, same wet climate. Sorry but I call a scam, Michael Farmer Sent from my iPad On Oct 15, 2014, at 4:53 PM, MEM via Meteorite-list meteorite-list@meteoritecentral.com wrote: www.sciencedaily.com/releases/2014/10/141014142736.htm Meteorite fragments discovered 20 years after bolide event in Czech Republic Date: October 14, 2014 Source: Astronomy Astrophysics Summary: Scientists have discovered meteorite fragments 20 years after the corresponding bolide was seen in the skies of the Czech Republic. This discovery was made possible by reanalyzing the trajectory, which moved the impact line by 330 meters. Interestingly, the meteorites found on the ground are of different types, pointing to a parent asteroid of heterogeneous composition. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Louisiana Loud Boom - Mystery Solved
List, Fact or Fiction? Louisiana Loud Boom - Mystery Solved X-37B Re-entry Path Over Shreveport, LA. -- Controlled Deceleration of the Craft Caused the Loud Boom! written 2340 JST, 16OCT2014 Tokyo by Dirk Ross...LunarMeteoriteHunter, Tokyo A national, perhaps international, news story broken by me-- first place to post outside my website- http://lunarmeteoritehunters.blogspot.jp/2014/10/louisiana-loud-boom-breaking-news.html Dirk Ross...Tokyo __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Czech meteorite fragments 20 years
Thanks Carl I see that others have commented too. I wrote last night but didn't execute until today. I hope to hear more soon. Pretty interesting topic.:-) Regards, Mark From:Carl Esparza via Meteorite-list meteorite-list@meteoritecentral.com Date:Thu, Oct 16, 2014 at 7:23 AM Subject:Re: [meteorite-list] Czech meteorite fragments 20 years Hi Mark, These guys are legit. http://cs.wikipedia.org/wiki/Pavel_Spurn%C3%BD Hope all is well with you. Carl Meteoritemax -- Love Life Mark Bowling via Meteorite-list meteorite-list@meteoritecentral.com wrote: Just to play Devil's advocate, is this desert varnish, or some kind of reaction to a humid, heavily mineralized soil? Have they been shared with other institutions? It's implied that they were found buried in the ground. Perhaps they did find them, and it's some sort of alteration caused by local ard/gossan conditions. Any geos on there who might know of a mechanism that could cause a similar looking weathering product? These are just photos, which, more often than not, are very hard to interpret. I'm partly curious as I've observed some interesting rocks while prospecting high sulfide locations. Assuming they were genuinely found, in such conditions it may be possible they are 20 years old. Or they could be much older, and it's just chance that they found some very old, highly-weathered meteorites unrelated to their impact location. In such a case, is there a dating method that could determine their true terrestrial age? Yes Holbrooks are pretty fresh, but they are in a semi-arid location, in sand dunes which probably wick away moisture. Stones found in the dunes are very fresh, while some in the flats are a lot more rusty. Anne brings up a good point that diverse types can be found from one event. I'm not saying that she agrees - odds are they are planted. But I just want to keep an open mind and keep asking questions. Another possibility is that one or two team members planted them and kept other members in the dark. They may have documented removal of the last couple found, thus adding more evidence that they are legit. But while they selected similar looking stones, they actually were different types (?). Anybody know some of these team members and if they are qualified to do this sort of work/have good reputations? Is this peer reviewed? Odds are they are kooks or cheats. But maybe they are on the up and up, but simply have foolishly linked these finds to a relatively recent fall(???). It will be interesting to see what develops! Mark Bowling From: Michael Farmer via Meteorite-list meteorite-list@meteoritecentral.com To: Paul Gessler cetu...@shaw.ca Cc: meteorite-list meteorite-list@meteoritecentral.com; MEM mstrema...@yahoo.com Sent: Wednesday, October 15, 2014 5:13 PM Subject: Re: [meteorite-list] Czech meteorite fragments 20 years Not to mention they are highly desert varnished, something never seen in a wet place, and different types. Whoever pulled this scam is pretty foolish. Michael Farmer Michael Farmer On Oct 15, 2014, at 5:02 PM, Paul Gessler via Meteorite-list meteorite-list@meteoritecentral.com wrote: Looks like something that was found sitting in a Moroccan sale bin for the last 20 years. They look a lot older than 20 years to me. Paul G -Original Message- From: MEM via Meteorite-list Sent: Wednesday, October 15, 2014 4:53 PM To: Meteorite Mailing List Subject: [meteorite-list] Fw: [Geology2] Meteorite fragments discovered 20years after bolide event in Czech Republic www.sciencedaily.com/releases/2014/10/141014142736.htm Meteorite fragments discovered 20 years after bolide event in Czech Republic Date: October 14, 2014 Source: Astronomy Astrophysics Summary: Scientists have discovered meteorite fragments 20 years after the corresponding bolide was seen in the skies of the Czech Republic. This discovery was made possible by reanalyzing the trajectory, which moved the impact line by 330 meters. Interestingly, the meteorites found on the ground are of different types, pointing to a parent asteroid of heterogeneous composition. First three Benešov meteorites found in April 2011, with metal detectors. From left to right: H5 chondrite of 1.56 g, LL3.5 chondrite of 7.72 g with achondrite clast, and LL3.5 chondrite of 1.99 g [2]. Credit: Image courtesy of Astronomy Astrophysics Astronomy Astrophysics is publishing the spectacular discovery of meteorite fragments 20 years after the corresponding bolide was seen in the skies of the Czech Republic. This discovery was made possible by reanalyzing the trajectory, which moved the impact line by 330 meters. Interestingly, the meteorites found on the
Re: [meteorite-list] Czech meteorite fragments 20 years
I haven't read the entire article nor do I know if it has been raised in the dozen emails but editors have been known to insert their own stock photos into pubs for a sundry of reasons. The duel lithology remains a red flag. Elton __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] It's explosive meteorite season!
Hello Listers, Who knew that around fall there would be more meteorite falls. Ill have to do some checking with historic falls, but from my collection I have noticed a lot of November meteorite falls and majority come from the Northern Hemisphere. Down below is a small article on this topic. SA Shawn Alan IMCA 1633 ebay store http://www.ebay.com/sch/imca1633nyc/m.html Website http://meteoritefalls.com Friday, October 10, 2014 - 12:00pm It's explosive meteorite season! In addition to hurricane season, it’s also explosive-meteorite season for the Northern Hemisphere, New Scientist reports. Yes, meteorites, like that huge one that lit up the skies in Chelyabinsk, Russia, last year (see above), are apparently more prone to collide with Earth’s atmosphere during certain parts of the year. Using repurposed infrasound sensors designed to detect nuclear blasts, scientists analyzed the number of explosive impacts in the atmosphere from 2000 to 2014 and discovered that they tend to cluster in certain geographical regions at certain times of the year. Before you start trying to meteorite-proof your house, it’s probably important to mention that even the monster Chelyabinsk impact killed zero people. source: http://news.sciencemag.org/sifter/2014/10/it-s-explosive-meteorite-season __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
