[meteorite-list] AD - Ebay sales starting (Foum El Hisn eucrite, NWA 8446 complete dio, Beni M'hira, unclassified eucrites, CM2...)
Hello, I just added many cool specimens for sale, including the new Foum El Hisn unbrecciated eucrite (coarse grain), most starting at 0.01$ with no reserve. Check them at : www.ebay.com/sch/moky99/m.html Pierre-Marie Pelé Meteor-Center Météorites : achat - vente - expertise - expéditions - recherche http://www.meteor-center.com IMCA 3360 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Pasamonte Contributed by: Beat Booz http://www.tucsonmeteorites.com/mpodmain.asp __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: Mauerkirchen L6 from 1768, Borwnfield IID iron, Kaposfüred IVA iron, Mezö-madaral L3.7 and other Thin Sections
Dera List Members! For sale In E-Bay: Mauerkirchen L6 first austrian meteorite from 1768. 0.122 gr for 170 USD Brownfiled IID rare USA iron, low TKW 0.722 gr (2 etched slices) - 170 USD http://www.ebay.com/usr/cbo891 Off E-bay: Ultra rare Kaposfüred IVA iron, HUNGARY, etched slice, 6 gr former University of Eotvos Lorand, Budapest piece - 450 USD Very rare Thin Sections: - Historic Mezö-Madaras L3.7 from 1852 - 170 USD - Mendota famous Meteorite Wrong - 65 USD - Millbillillie Australian Eucrite-mmict - 95 USD - Azuara, Spain impactite - 30 USD - Suvasvesi Finland impactite - 30 USD Please interest in PM. Coming soon: Ultra rare Braunschweig German fallen, Kosice, Murchison Thin Sections. Reserveable! Zsolt Kereszty IMCA#6251 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Sculpture by Katie Paterson
Dear Lads and Lassies Thank you to those who replied to the e-mail I sent about the meteorite sculpture by Katie Paterson which has been sent into space. To be honest I didn't expect a positive response and that is exactly what I got. I attended a talk by Katie last Saturday (2nd August) and I actually got to handle several of the meteorites she has recast. An odd and slightly disconcerting experience I thought. We got to chatting about possible future collaborations but it remains to be seen what that might actually turn out to mean. I have always believed that it one of the purposes of art (among many other things) to challenge, shock and discomfort people and ideas by presenting the familiar in a new and unfamiliar way - to make people rethink their ideas and to challenge them to take stock of their old values. This particular project does seem to have raised a few eyebrows and rattled a few cages. I am mulling over the idea of asking Katie if I could present these items at Ensisheim one year. Cheers Peter Davidson Senior Curator of Minerals National Museums Collection Centre 242 West Granton Road Edinburgh EH5 1JA 00 44 131 247 4283 p.david...@nms.ac.uk Discover the treasures of China's Ming dynasty at the National Museum of Scotland. Ming: The Golden Empire, 27 June-19 October 2014, www.nms.ac.uk/ming National Museums Scotland, Scottish Charity, No. SC 011130 This communication is intended for the addressee(s) only. If you are not the addressee please inform the sender and delete the email from your system. The statements and opinions expressed in this message are those of the author and do not necessarily reflect those of National Museums Scotland. This message is subject to the Data Protection Act 1998 and Freedom of Information (Scotland) Act 2002. No liability is accepted for any harm that may be caused to your systems or data by this message. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Interesting Paper About Pseudo-Impact Craters
I came across an interesting paper about crater-like landforms that were formed by erosional processes. It is: Seward, C. L., Jr. and I. D. Boone, 1966, Erosion Craters Kimble County, Texas. Texas Journal of Science. vol. XVIII, no. 2, pp.184-190. They looked at numerous small crater-like features that they noticed in the Llano River valley in the Junction, Texas, area. Instead of finding impact craters, which they expected these features to be, they found features to be erosional origin. They suggested that similar pseudo-impact craters likely would be created by similar climatic and geologic conditions and could be found elsewhere. Yours, Paul H. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite Sculpture by Katie Paterson
Hi Peter/allAs an artist myself working on more unusual projects with the Arts Council trying to find new ways of expressing ideas...trying to stretch the boundaries and asking what is art?...etc I find this an interesting topic...I'm all for art doing what you say...but have a slight conflict here, being a meteorite collector and using much of what I know and see in meteoritics as inspiration for some of my own projectsthere are so many at the moment just making/doing art to shock...and I don't really think that that is enough personallyand to be honest I'm not sure what she is doing is really very original...many artists have destroyed and rebuilt objects as them selves in the past in various waysto me she is not making people think about the wonder of the object, where it comes from etc...it's more about herselfand her practice. Now if she had prepared the meteorite in such a way to show off it's wonder, or even just exhibited it in a a gallery as is...rather than in a museum...then that would have asked far more questions about what art is, or what the object means...the recasting is not so much about the object...it is far more about the process and her own practiceI feel she has said far less by recasting itbut I suppose that's what art is aboutit's more about the questions that a piece is asking than the answer. Not sure what destroying something and remaking it in it's own image and then sending it back to whence it came (partly) is really saying.only those who are wise about meteorites actually understand what aspects of the object she has destroyedmost of the general public/other artists etc will see the object as unchanged! Graham On Tue, Aug 5, 2014 at 3:35 PM, Peter Davidson via Meteorite-list meteorite-list@meteoritecentral.com wrote: Dear Lads and Lassies Thank you to those who replied to the e-mail I sent about the meteorite sculpture by Katie Paterson which has been sent into space. To be honest I didn't expect a positive response and that is exactly what I got. I attended a talk by Katie last Saturday (2nd August) and I actually got to handle several of the meteorites she has recast. An odd and slightly disconcerting experience I thought. We got to chatting about possible future collaborations but it remains to be seen what that might actually turn out to mean. I have always believed that it one of the purposes of art (among many other things) to challenge, shock and discomfort people and ideas by presenting the familiar in a new and unfamiliar way - to make people rethink their ideas and to challenge them to take stock of their old values. This particular project does seem to have raised a few eyebrows and rattled a few cages. I am mulling over the idea of asking Katie if I could present these items at Ensisheim one year. Cheers Peter Davidson Senior Curator of Minerals National Museums Collection Centre 242 West Granton Road Edinburgh EH5 1JA 00 44 131 247 4283 p.david...@nms.ac.uk Discover the treasures of China's Ming dynasty at the National Museum of Scotland. Ming: The Golden Empire, 27 June-19 October 2014, www.nms.ac.uk/ming National Museums Scotland, Scottish Charity, No. SC 011130 This communication is intended for the addressee(s) only. If you are not the addressee please inform the sender and delete the email from your system. The statements and opinions expressed in this message are those of the author and do not necessarily reflect those of National Museums Scotland. This message is subject to the Data Protection Act 1998 and Freedom of Information (Scotland) Act 2002. No liability is accepted for any harm that may be caused to your systems or data by this message. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The Kardashian index: a measure of a scientist's discrepant social media profile
Some strangeness from the world of science. :-) :-) :-) The Kardashian Index by Tommaso Dorigo August 4th 2014 http://www.science20.com/a_quantum_diaries_survivor/blog/the_new_bit_of_the_summer_the_kardashian_index-141848 'Kardashian-index' raises awareness of cult of celebrity in sciences, Phys.Org http://phys.org/news/2014-08-tongue-in-cheek-kardashian-index-awareness-cult-celebrity.html Hall, K., 2014, The Kardashian index: a measure of discrepant social media profile for scientists, Genome Biology. vol. 15, no. 424 DOI: 10.1186/s13059-014-0424-0 , http://genomebiology.com/2014/15/7/424 Proposes the ‘Kardashian Index’ to measure the discrepancy between a scientist’s social media profile and publication record based on the direct comparison of numbers of citations and Twitter followers. Yours, Paul H. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NASA Holds Briefing on Early Test Results for New Planetary Landing Technology
http://www.jpl.nasa.gov/news/news.php?release=2014-263 NASA Holds Briefing on Early Test Results for New Planetary Landing Technology Jet Propulsion Laboratory August 05, 2014 NASA's Low-Density Supersonic Decelerator (LDSD) project successfully flew a rocket-powered, saucer-shaped test vehicle into near-space in late June from the U.S. Navy's Pacific Missile Range Facility on Kauai, Hawaii. Media are invited to the agency's Jet Propulsion Laboratory (JPL) in Pasadena, California, at 9 a.m. PDT (noon EDT) Friday, August 8, to see new video from this test and hear about early results from the mission. The briefing will air live on NASA Television and the agency's website. The LDSD cross-cutting demonstration mission tested breakthrough technologies that will enable large payloads to be safely landed on the surface of Mars and allow access to more of the planet's surface by enabling landings at higher altitude sites. Participants in Friday's briefing are: -- Jeff Sheehy, senior technologist with the Space Technology Mission Directorate, NASA Headquarters, Washington -- Mark Adler, project manager, LDSD, JPL -- Ian Clark, principal investigator, LDSD, JPL More material about the LDSD space technology demonstration mission is online at: http://go.usa.gov/N5zm For NASA TV streaming video, schedules and downlink information, visit: http://www.nasa.gov/nasatv The event will also be carried live on Ustream at: http://www.ustream.tv/NASAJPL2 The LDSD project is part of NASA's Space Technology Mission Directorate, which is innovating, developing, testing and flying hardware for use on future NASA missions. Over the next 18 months, the directorate will make significant new investments to address several high-priority challenges in achieving safe and affordable deep space exploration. These focused technology areas are tightly aligned with NASA's Space Technology Roadmaps, the Space Technology Investment Plan and National Research Council recommendations. For more information about the directorate, visit: http://www.nasa.gov/spacetech DC Agle Jet Propulsion Laboratory, Pasadena, Calif. 818-393-9011 a...@jpl.nasa.gov David Steitz NASA Headquarters, Washington 202-358-1730 david.ste...@nasa.gov 2014-263 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NASA Mars Curiosity Rover: Two Years and Counting on Red Planet
http://www.jpl.nasa.gov/news/news.php?release=2014-262 NASA Mars Curiosity Rover: Two Years and Counting on Red Planet Jet Propulsion Laboratory August 05, 2014 NASA's most advanced roving laboratory on Mars celebrates its second anniversary since landing inside the Red Planet's Gale Crater on Aug. 5, 2012, PDT (Aug. 6, 2012, EDT). During its first year of operations, the Curiosity rover fulfilled its major science goal of determining whether Mars ever offered environmental conditions favorable for microbial life. Clay-bearing sedimentary rocks on the crater floor in an area called Yellowknife Bay yielded evidence of a lakebed environment billions of years ago that offered fresh water, all of the key elemental ingredients for life, and a chemical source of energy for microbes, if any existed there. Before landing, we expected that we would need to drive much farther before answering that habitability question, said Curiosity Project Scientist John Grotzinger of the California Institute of Technology, Pasadena. We were able to take advantage of landing very close to an ancient streambed and lake. Now we want to learn more about how environmental conditions on Mars evolved, and we know where to go to do that. During its second year, Curiosity has been driving toward long-term science destinations on lower slopes of Mount Sharp. Those destinations are in an area beginning about 2 miles (3 kilometers) southwest of the rover's current location, but an appetizer outcrop of a base layer of the mountain lies much closer -- less than one-third of a mile (500 meters) from Curiosity. The rover team is calling the outcrop Pahrump Hills. For about half of July, the rover team at NASA's Jet Propulsion Laboratory in Pasadena, California, drove Curiosity across an area of hazardous sharp rocks on Mars called Zabriskie Plateau. Damage to Curiosity's aluminum wheels from driving across similar terrain last year prompted a change in route, with the plan of skirting such rock-studded terrain wherever feasible. The one-eighth mile (200 meters) across Zabriskie Plateau was one of the longest stretches without a suitable detour on the redesigned route toward the long-term science destination. Another recent challenge appeared last week in the form of unexpected behavior by an onboard computer currently serving as backup. Curiosity carries duplicate main computers. It has been operating on its B-side computer since a problem with the A-side computer prompted the team to command a side swap in February 2013. Work in subsequent weeks of 2013 restored availability of the A-side as a backup in case of B-side trouble. In July, fresh commanding of the rover was suspended for two days while engineers confirmed that the A-side computer remains reliable as a backup. To help prepare for future human missions to Mars, Curiosity incudes a radiation detector to measure the environment astronauts will encounter on a round-trip between Earth and the Martian surface. The data are consistent with earlier predictions and will help NASA scientists and engineers develop new technologies to protect astronauts in deep space. In 2016, a Mars lander mission called InSight will launch to take the first look into the deep interior of Mars. The agency also is participating in the European Space Agency's (ESA's) 2016 and 2018 ExoMars missions, including providing Electra telecommunication radios to ESA's 2016 orbiter and a critical element of the astrobiology instrument on the 2018 ExoMars rover. Additionally, NASA recently announced that its next rover going to Mars in 2020 will carry seven carefully selected instruments to conduct unprecedented investigations in science and technology, as well as capabilities needed for humans to pioneer the Red Planet. Based on the design of the highly successful Mars Science Laboratory rover, Curiosity, the new rover will carry more sophisticated, upgraded hardware and new instruments to conduct geological assessments of the rover's landing site, determine the potential habitability of the environment, and directly search for signs of ancient Martian life. Scientists will use the Mars 2020 rover to identify and select a collection of rock and soil samples that will be stored for potential return to Earth by a future mission. The Mars 2020 mission is responsive to the science objectives recommended by the National Research Council's 2011 Planetary Science Decadal Survey. The Mars 2020 rover will help further advance our knowledge of how future human explorers could use natural resources available on the surface of the Red Planet. An ability to live off the Martian land would transform future exploration of the planet. Designers of future human expeditions can use this mission to understand the hazards posed by Martian dust and demonstrate technology to process carbon dioxide from the atmosphere to produce oxygen. These experiments will help engineers learn how to use Martian resources to produce oxygen
Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220 CDT 02AUG2014
Hi Anne and all, There are many scientifically calculated fall rates. Most assume meteorites that have landed are 100 grams or larger as those are deemed more findable. A Canadian study estimated some 21,000 falls per year. We loose 3/4 in the oceans, leaving some 6,000 to land on dry land. Many of those land in remote areas away from the notice of people. Higher populations usually result in the notice of more falls. Light pollution probably reduces that number some. Of all the falls, only 0.1% or about 5 to 6 falls per year are actually collected. The 1933 year was an excellent year for recovery of falls. 17 meteorites of the potential fall total were recovered! According to this Canadian study we are really no better at recovery of falls than we were in the past. Even though meteorite falls are better understood than in the past. It is important to keep this in mind as there are many unlocated falls all over the world. Source for some of this information: Canadian fireball rates and meteorite falls – declining returns by Martin Beech Campion College, The University of Regina, Regina, Saskatchewan, Canada --AL Mitterling Mitterling Meteorites Quoting Anne Black via Meteorite-list meteorite-list@meteoritecentral.com: I am curious. It is practically everyday that a fireball is spotted somewhere around the globe, but.. - How many of those fireballs are real fireballs, not plane, fireworks, lighting,... etc? - How many of those real ones burn up in the atmosphere? - How many make it to the ground and produce meteorites? - And finally how many of those are ever found soon enough to be called Falls? Is anyone keeping track of those numbers? The percentage meteorites fireballs would be interesting. Anne M. Black www.IMPACTIKA.com impact...@aol.com __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220 CDT 02AUG2014
Thank you Al! You are the only one who responded. Yes, of course a lot of meteorites are lost to the oceans, lakes, and to remote areas. And it is interesting that the best year for Falls is 1933. Of course I certainly would not expect the average rate of Falls to change over the years, but with radar, all-sky cameras, computers, fast communications, all the work from Dirk Ross, Rob Matson and several others, and a lot more people looking up, I would expect the percentage of recoveries to go up. But is it? Or is all our modern fancy equipment all for naught? Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: almitt2--- via Meteorite-list meteorite-list@meteoritecentral.com To: meteorite-list meteorite-list@meteoritecentral.com Sent: Tue, Aug 5, 2014 7:24 pm Subject: Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220 CDT 02AUG2014 Hi Anne and all, There are many scientifically calculated fall rates. Most assume meteorites that have landed are 100 grams or larger as those are deemed more findable. A Canadian study estimated some 21,000 falls per year. We loose 3/4 in the oceans, leaving some 6,000 to land on dry land. Many of those land in remote areas away from the notice of people. Higher populations usually result in the notice of more falls. Light pollution probably reduces that number some. Of all the falls, only 0.1% or about 5 to 6 falls per year are actually collected. The 1933 year was an excellent year for recovery of falls. 17 meteorites of the potential fall total were recovered! According to this Canadian study we are really no better at recovery of falls than we were in the past. Even though meteorite falls are better understood than in the past. It is important to keep this in mind as there are many unlocated falls all over the world. Source for some of this information: Canadian fireball rates and meteorite falls – declining returns by Martin Beech Campion College, The University of Regina, Regina, Saskatchewan, Canada --AL Mitterling Mitterling Meteorites Quoting Anne Black via Meteorite-list meteorite-list@meteoritecentral.com: I am curious. It is practically everyday that a fireball is spotted somewhere around the globe, but.. - How many of those fireballs are real fireballs, not plane, fireworks, lighting,... etc? - How many of those real ones burn up in the atmosphere? - How many make it to the ground and produce meteorites? - And finally how many of those are ever found soon enough to be called Falls? Is anyone keeping track of those numbers? The percentage meteorites fireballs would be interesting. Anne M. Black www.IMPACTIKA.com impact...@aol.com __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220 CDT 02AUG2014
Hi Anne, Al, and List, The most prolific year for recoveries in the 21st century was 2012. There were 12 recovered falls. Six of those have been approved in the Met Bulletin. Another was approved as a find (Mreira). After that peak in 2012, total recoveries regressed back towards the mean in 2013 with approx. 7 recovered falls and only two of those have been officially approved. Feb 11, 2012 - Xining (L5 chondrite) : China Mar 01, 2012 - Oslo (unofficial) (ordinary chondrite?) : Norway (Hammer) Apr 22, 2012 - Sutter's Mill (CM - Regolith Breccia) : California USA (Hammer) May 04, 2012 - Ladkee (H6 chondrite) : Pakistan May 22, 2012 - Katol (L6 chondrite) : India (Hammer) Jun 03, 2012 - Comayagua (unofficial) (ordinary chondrite?) : Honduras (Hammer) Jul 08, 2012 - Jalangi (unofficial) (ordinary chondrite?) : India Aug 22, 2012 - Battle Mountain (L6 chondrite) : Nevada USA Oct 12, 2012 - Beni Yacoub (unofficial) (ordinary chondrite?) : Morocco Oct 17, 2012 - Novato (L6 chondrite) : California USA (Hammer) Oct 30, 2012 - Addison (unofficial) (ordinary chondrite?) : Alabama USA Dec 16, 2012 - Mreira (L6 chondrite) : Mauritania (fall classified as a find) Best regards and happy huntings, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone - On 8/5/14, Anne Black via Meteorite-list meteorite-list@meteoritecentral.com wrote: Thank you Al! You are the only one who responded. Yes, of course a lot of meteorites are lost to the oceans, lakes, and to remote areas. And it is interesting that the best year for Falls is 1933. Of course I certainly would not expect the average rate of Falls to change over the years, but with radar, all-sky cameras, computers, fast communications, all the work from Dirk Ross, Rob Matson and several others, and a lot more people looking up, I would expect the percentage of recoveries to go up. But is it? Or is all our modern fancy equipment all for naught? Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: almitt2--- via Meteorite-list meteorite-list@meteoritecentral.com To: meteorite-list meteorite-list@meteoritecentral.com Sent: Tue, Aug 5, 2014 7:24 pm Subject: Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220 CDT 02AUG2014 Hi Anne and all, There are many scientifically calculated fall rates. Most assume meteorites that have landed are 100 grams or larger as those are deemed more findable. A Canadian study estimated some 21,000 falls per year. We loose 3/4 in the oceans, leaving some 6,000 to land on dry land. Many of those land in remote areas away from the notice of people. Higher populations usually result in the notice of more falls. Light pollution probably reduces that number some. Of all the falls, only 0.1% or about 5 to 6 falls per year are actually collected. The 1933 year was an excellent year for recovery of falls. 17 meteorites of the potential fall total were recovered! According to this Canadian study we are really no better at recovery of falls than we were in the past. Even though meteorite falls are better understood than in the past. It is important to keep this in mind as there are many unlocated falls all over the world. Source for some of this information: Canadian fireball rates and meteorite falls - declining returns by Martin Beech Campion College, The University of Regina, Regina, Saskatchewan, Canada --AL Mitterling Mitterling Meteorites Quoting Anne Black via Meteorite-list meteorite-list@meteoritecentral.com: I am curious. It is practically everyday that a fireball is spotted somewhere around the globe, but.. - How many of those fireballs are real fireballs, not plane, fireworks, lighting,... etc? - How many of those real ones burn up in the atmosphere? - How many make it to the ground and produce meteorites? - And finally how many of those are ever found soon enough to be called Falls? Is anyone keeping track of those numbers? The percentage meteorites fireballs would be interesting. Anne M. Black www.IMPACTIKA.com impact...@aol.com __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://three.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list
Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220 CDT 02AUG2014
Yes I know Mike, and that is why I asked that question. I just (finally!) updated my calendar and I was stunned by how few confirmed falls I had to add. With almost daily reports of fireballs from Dirk Ross, Marc Fries and Rob Matson studying the radars, and all the cameras I expected a whole lot more of confirmed, and most importantly, recovered meteorites. Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: Galactic Stone Ironworks meteoritem...@gmail.com To: Anne Black impact...@aol.com Cc: almitt2 almi...@localnet.com; meteorite-list meteorite-list@meteoritecentral.com Sent: Tue, Aug 5, 2014 8:09 pm Subject: Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220 CDT 02AUG2014 Hi Anne, Al, and List, The most prolific year for recoveries in the 21st century was 2012. There were 12 recovered falls. Six of those have been approved in the Met Bulletin. Another was approved as a find (Mreira). After that peak in 2012, total recoveries regressed back towards the mean in 2013 with approx. 7 recovered falls and only two of those have been officially approved. Feb 11, 2012 - Xining (L5 chondrite) : China Mar 01, 2012 - Oslo (unofficial) (ordinary chondrite?) : Norway (Hammer) Apr 22, 2012 - Sutter's Mill (CM - Regolith Breccia) : California USA (Hammer) May 04, 2012 - Ladkee (H6 chondrite) : Pakistan May 22, 2012 - Katol (L6 chondrite) : India (Hammer) Jun 03, 2012 - Comayagua (unofficial) (ordinary chondrite?) : Honduras (Hammer) Jul 08, 2012 - Jalangi (unofficial) (ordinary chondrite?) : India Aug 22, 2012 - Battle Mountain (L6 chondrite) : Nevada USA Oct 12, 2012 - Beni Yacoub (unofficial) (ordinary chondrite?) : Morocco Oct 17, 2012 - Novato (L6 chondrite) : California USA (Hammer) Oct 30, 2012 - Addison (unofficial) (ordinary chondrite?) : Alabama USA Dec 16, 2012 - Mreira (L6 chondrite) : Mauritania (fall classified as a find) Best regards and happy huntings, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone - On 8/5/14, Anne Black via Meteorite-list meteorite-list@meteoritecentral.com wrote: Thank you Al! You are the only one who responded. Yes, of course a lot of meteorites are lost to the oceans, lakes, and to remote areas. And it is interesting that the best year for Falls is 1933. Of course I certainly would not expect the average rate of Falls to change over the years, but with radar, all-sky cameras, computers, fast communications, all the work from Dirk Ross, Rob Matson and several others, and a lot more people looking up, I would expect the percentage of recoveries to go up. But is it? Or is all our modern fancy equipment all for naught? Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: almitt2--- via Meteorite-list meteorite-list@meteoritecentral.com To: meteorite-list meteorite-list@meteoritecentral.com Sent: Tue, Aug 5, 2014 7:24 pm Subject: Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220CDT 02AUG2014 Hi Anne and all, There are many scientifically calculated fall rates. Most assume meteorites that have landed are 100 grams or larger as those are deemed more findable. A Canadian study estimated some 21,000 falls per year. We loose 3/4 in the oceans, leaving some 6,000 to land on dry land. Many of those land in remote areas away from the notice of people. Higher populations usually result in the notice of more falls. Light pollution probably reduces that number some. Of all the falls, only 0.1% or about 5 to 6 falls per year are actually collected. The 1933 year was an excellent year for recovery of falls. 17 meteorites of the potential fall total were recovered! According to this Canadian study we are really no better at recovery of falls than we were in the past. Even though meteorite falls are better understood than in the past. It is important to keep this in mind as there are many unlocated falls all over the world. Source for some of this information: Canadian fireball rates and meteorite falls - declining returns by Martin Beech Campion College, The University of Regina, Regina, Saskatchewan, Canada --AL Mitterling Mitterling Meteorites Quoting Anne Black via Meteorite-list meteorite-list@meteoritecentral.com: I am curious. It is practically everyday that a fireball is spotted somewhere around the globe, but.. - How many of those fireballs are real fireballs, not plane, fireworks, lighting,... etc? - How many of those real ones burn up in the atmosphere? - How many make it to the ground and produce meteorites? - And finally how many of those are ever found soon enough to be called Falls? Is anyone keeping track of those numbers? The percentage meteorites
