[meteorite-list] Posting Tucson Contact information
Hi Met List, Just a reminder that if you want to post your contact information, suite number, phone, and such for the Tucson Gem and Mineral show you can do it at http://www.meteorite.com/submit-tucson-information/ And if you just want to see information about the Gem Show we have a site the can help you learn a lot at http://www.meteorite.com/tucson/ Hope to see many of you there in just a couple more weeks, have a great day. Jim Tobin __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ad: North American meteorite - San Bernardino Wash (L5)
For those collectors with an interest in North American meteorites, I would like to bring your attention to an eBay offering (ending soon) of a classified find from the California Mojave Desert: San Bernardino Wash (L5) http://www.ebay.com/itm/221353605398 This under-appreciated meteorite promises to become better-known now that additional field-work and research results are starting to appear on the Internet: https://www.google.com/#q=San+Bernardino+Wash+L5+meteorite+strewn-field Although the study of this area is too early to determine the possible TKW of this meteorite, it certainly will not rival Gold Basin (L4/6), but it promises to be the next Trilby Wash. The specimens that I am offering are the remaining slices from the samples used to determine pairing. These two classifications confirmed their pairing to the SBW(L5) type-specimen held at UCLA. I will only be offering additional specimens for auction until the cost of this lab-work has been defrayed. But, as usual, I will continue to accept requests for samples by any interested researchers. Thank you for your interest, Bob V. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Ad: North American meteorite - San Bernardino Wash (L5)
Hello Bob, All, Just home from a hunt, haven't had the opportunity to reply until now. I don't have photos of the other stone/fragments, but I do have a few photos of SBW#1 on hand: http://meteoritegallery.com/wp-content/uploads/2014/01/DSCN7095.jpg http://meteoritegallery.com/wp-content/uploads/2014/01/DSCN7101.jpg http://meteoritegallery.com/wp-content/uploads/2014/01/comparison.jpg Is there any evidence for pairing beyond equilibrated L? As you can see, that slice looks a bit different. Regards, Jason www.fallsandfinds.com On Mon, Jan 20, 2014 at 1:44 PM, Robert Verish bolidecha...@yahoo.com wrote: For those collectors with an interest in North American meteorites, I would like to bring your attention to an eBay offering (ending soon) of a classified find from the California Mojave Desert: San Bernardino Wash (L5) http://www.ebay.com/itm/221353605398 This under-appreciated meteorite promises to become better-known now that additional field-work and research results are starting to appear on the Internet: https://www.google.com/#q=San+Bernardino+Wash+L5+meteorite+strewn-field Although the study of this area is too early to determine the possible TKW of this meteorite, it certainly will not rival Gold Basin (L4/6), but it promises to be the next Trilby Wash. The specimens that I am offering are the remaining slices from the samples used to determine pairing. These two classifications confirmed their pairing to the SBW(L5) type-specimen held at UCLA. I will only be offering additional specimens for auction until the cost of this lab-work has been defrayed. But, as usual, I will continue to accept requests for samples by any interested researchers. Thank you for your interest, Bob V. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.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://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Ad: North American meteorite - San Bernardino Wash (L5)
Yes Jason, I agree, they definitely look different. But what has me puzzled is something that is not all that apparent in our images. The exterior of our two stones. Your stone has a very well-preserved exterior (even though your interior is a uniformly-colored W3), whereas, my exterior (which is not visible in the image) is gone, actually eroded. Yet somehow, my stone's interior is less weathered than your stone (my stone was classified as W1). I wonder, if the interior of my stone were to weather to a W3, just how much it would look like your stone? But, to directly answer your question, I would have to refer you to my latest Meteorite-Times article: http://meteorite-recovery.tripod.com/2014/jan14.htm for my description of how a cluster of obviously-paired fragments found at SBW had such a variation in looks, that it prompted me to sample a number of them and to actually have two of those fragments classified. For your convenience, I'll show them here: Pinto Mountains -- (L6 S3 W1 Fa23.8+/-0.3% n=16; low-Ca pyroxene Fs20.3Wo1.5 n=17)-- 1955 stone San Bernardino Wash -- (L5 S2 W3 Fa24.6+/-0.6% (n=7) -- (UCLA type-specimen) -- 2010 stone San Bernardino Wash -- (L5 S1 W3 Fa24.0+/-0.2% (n=24) -- 2012A fragment San Bernardino Wash -- (L5 S2 W1 Fa23.8+/-0.4% (n=14) -- 2012B fragment This just might be a case of (very) micro-environments acting immediate to where each fragment is found, that is causing all of these differences. I'm open to any and all other explanations, Bob V. On Monday, January 20, 2014 2:48 PM, Jason Utas meteorite...@gmail.com wrote: Hello Bob, All, Just home from a hunt, haven't had the opportunity to reply until now. I don't have photos of the other stone/fragments, but I do have a few photos of SBW#1 on hand: http://meteoritegallery.com/wp-content/uploads/2014/01/DSCN7095.jpg http://meteoritegallery.com/wp-content/uploads/2014/01/DSCN7101.jpg http://meteoritegallery.com/wp-content/uploads/2014/01/comparison.jpg Is there any evidence for pairing beyond equilibrated L? As you can see, that slice looks a bit different. Regards, Jason www.fallsandfinds.com On Mon, Jan 20, 2014 at 1:44 PM, Robert Verish bolidecha...@yahoo.com wrote: For those collectors with an interest in North American meteorites, I would like to bring your attention to an eBay offering (ending soon) of a classified find from the California Mojave Desert: San Bernardino Wash (L5) http://www.ebay.com/itm/221353605398 This under-appreciated meteorite promises to become better-known now that additional field-work and research results are starting to appear on the Internet: https://www.google.com/#q=San+Bernardino+Wash+L5+meteorite+strewn-field Although the study of this area is too early to determine the possible TKW of this meteorite, it certainly will not rival Gold Basin (L4/6), but it promises to be the next Trilby Wash. The specimens that I am offering are the remaining slices from the samples used to determine pairing. These two classifications confirmed their pairing to the SBW(L5) type-specimen held at UCLA. I will only be offering additional specimens for auction until the cost of this lab-work has been defrayed. But, as usual, I will continue to accept requests for samples by any interested researchers. Thank you for your interest, Bob V. __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.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://six.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://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - Listings ending in 24hr
I have several auctions ending in 24hrs. 8 new items will be listed at that time. For meteorites: samhill01 - http://www.ebay.com/sch/samhill01/m.html For terrestrial rocks: xeqtr - http://www.ebay.com/sch/xeqtr/m.html __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rosetta's Comet Chase Is On
www.spaceflightnow.com/rosetta/140120wakeup/ Rosetta's comet chase is on BY STEPHEN CLARK SPACEFLIGHT NOW January 20, 2014 Out of contact with Earth since June 2011, Rosetta is about to conclude a 10-year sojourn through space and pull alongside comet named Churyumov-Gerasimenko in August, when the European Space Agency probe will become the first mission to ever orbit one of the dirty snowballs believed to harbor the building blocks of life. European Space Agency officials say Monday's wakeup launches Rosetta into a year of firsts: rendezvousing with a little-known comet beyond the orbit of Mars, maneuvering into a series of jagged, imprecise orbits, surviving blasts from dust and ice crystals, then ejecting a hitchhiking robot named Philae to latch onto the comet with harpoons and ice screws. Such a tricky encounter, set to begin this summer, has never been tried before. We have our comet-chaser back, said Alvaro Gimenez, ESA's director of science and robotic exploration. With Rosetta, we will take comet exploration to a new level. This incredible mission continues our history of 'firsts' at comets, building on the technological and scientific achievements of our first deep space mission Giotto, which returned the first close-up images of a comet nucleus as it flew past Halley in 1986. Rosetta's on-board timer was programmed to go off at 1000 GMT (5 a.m. EST) Monday, but it took more than eight hours to receive a report on the spacecraft's condition. The probe roused itself from sleep, activated heaters and regained control of its orientation before aiming its high-power antenna toward Earth. Admittedly nervous after waiting 31 months with no signals from the $1.7 billion mission, ground teams at ESA's control center in Darmstadt, Germany, were elated with the news. Although Rosetta's signal made it to Earth within the expected window, the team had to wait a little longer than most officials expected. NASA-owned 70-meter (230-foot) antennas in California and Australia were trained on Rosetta's predicted location in the sky waiting on a peep from the probe 500 million miles away. A video feed streamed from the Darmstadt control center finally showed a spike in the signal at 1818 GMT (1:18 p.m. EST). I think that's been the longest hour of my life, said Andrea Accomazzo, Rosetta's spacecraft operations manager. It's been a spectacular few moments of torture, said Martin Kessler, Rosetta's science operations manager. The slumber was necessary to keep Rosetta going because it flew so far from the sun -- a maximum distance of 490 million miles -- that its solar panels could no longer generate enough power to supply the probe's control and communications systems. Engineers only left Rosetta's heaters on standby to turn on intermittently to keep the spacecraft's internal components warm. Rosetta's control team will learn more about the spacecraft's condition in the coming hours and days. The signal initially received Monday was just a carrier tone, Rosetta's way telling the ground team, I'm alive! One of the first commands sent up to Rosetta after wakeup was to trigger a torrent of telemetry data detailing the status of every system aboard the spacecraft except its science instruments, which will be activated and tested in the next few weeks. Rosetta's journey began March 2, 2004, with a middle-of-the-night blastoff aboard an Ariane 5 rocket from its French Guiana launch base. The mission was a year late getting off the ground due to worries over the Ariane 5 rocket's reliability after a launch mishap in December 2002. The delay prompted a change in destination to Churyumov-Gerasimenko, colloquially known as 67P or C-G, an ice world four times larger than Rosetta's original target. Since departing Earth a decade ago, Rosetta has returned for flybys three times and zoomed past Mars in February 2007, returning a spectacular self-portrait of the probe's solar panel backdropped by the stark landscape of the red planet. Rosetta also logged flybys of asteroids Steins and Lutetia in September 2008 and July 2010, collecting data and imagery in a chance for bonus science on the way to the mission's ultimate objective. Since lifting off in 2004, Rosetta's odometer stands at 3.8 billion miles. The craft's extensive suite of cameras, spectrometers, dust analyzers and other science instruments will be switched on and tested in the next few months. In late March, the German-led Philae lander riding piggyback on Rosetta will be activated for the first time in three-and-a-half years to check its status. A major course correction maneuver is planned for May to change Rosetta's velocity by approximately 800 meters per second, or 1,800 mph, and adjust the craft's trajectory to arrive in the vicinity of Churyumov-Gerasimenko in August. Rosetta's long-range camera should acquire the first images of the comet this spring, with the 3-mile-wide comet
[meteorite-list] Water Found in Stardust Suggests Life is Universal
http://www.newscientist.com/article/dn24907-water-found-in-stardust-suggests-life-is-universal.html Water found in stardust suggests life is universal by Catherine Brahic New Scientist 20 January 2014 A sprinkling of stardust is as magical as it sounds. The dust grains that float through our solar system contain tiny pockets of water, which form when they are zapped by a blast of charged wind from the sun. The chemical reaction causing this to happen had previously been mimicked in laboratories, but this is the first time water has been found trapped inside real stardust. Combined with previous findings of organic compounds in interplanetary dust, the results suggest that these grains contain the basic ingredients needed for life. As similar dust grains are thought to be found in solar systems all over the universe, this bodes well for the existence of life across the cosmos. The implications are potentially huge, says Hope Ishii of the University of Hawaii in Honolulu, one of researchers behind the study. It is a particularly thrilling possibility that this influx of dust on the surfaces of solar system bodies has acted as a continuous rainfall of little reaction vessels containing both the water and organics needed for the eventual origin of life. Dust rain Solar systems are full of dust - a result of many processes, including the break-up of comets. John Bradley of the Lawrence Livermore National Laboratory in California and his colleagues inspected the outer layer of interplanetary dust particles extracted from Earth's stratosphere. Ultra-high-resolution microscopy allowed them to probe the 5- to 25-micrometre specks of dust to reveal small pockets of trapped water just beneath the surface. Laboratory experiments offer clues to how the water forms. The dust is mostly made of silicates, which contains oxygen. As it travels through space, it encounters the solar wind. This stream of charged particles including high-energy hydrogen ions is ejected from the sun's atmosphere. When the two collide, hydrogen and oxygen combine to make water. As interplanetary dust is thought to have rained down on early Earth, it is likely that the stuff brought water to our planet, although it is difficult to conceive how it could account for the millions of cubic kilometres of water that cover Earth today. In no way do we suggest that this was sufficient to form oceans, says Ishii. Universal water A more likely origin for the huge volume of water on our planet is wet asteroids that pummelled early Earth. Comets are also a candidate: the European Space Agency's Rosetta spacecraft, due to send a lander to a comet later this year, is tasked with probing their role. However, the Bradley team's results are relevant to the quest for life on other planets. The water-producing reaction is likely to be universal, and to happen in any corner of the universe with a star, or even a supernova, says Ishii. What's more, interplanetary dust in our solar system - and in others 0 contains organic carbon. If stardust contains carbon and water, it means the essentials of life could be present in solar systems anywhere in the universe and raining down on their planets. These are the types of processes that we expect to occur in other planetary systems, says Fred Ciesla of the University of Chicago in Illinois, who was not involved in the work. Water and organics are not uncommon. Journal reference: PNAS, DOI: 10.1073/pnas.1320115111 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Another meteorite-hit poser kid with scars????Have we seen this before!
FYI Folks, Hal Povenmire was able to secure a few specimens that he sent to one of his lunar lab contacts in Nasa. It turned out that they were terrestrial, as many of us suspected. The standing theory (giving them the benefit of the doubt that the child was actually hit) is that it may have been gravel or a small stone that had dropped off of the wheel of a jet (they live off the flight path of a nearby airport.) Sean -Original Message- From: drtanuki Sent: Tuesday, November 26, 2013 1:33 AM To: meteorite-list Subject: [meteorite-list] Another meteorite-hit poser kid with scarsHave we seen this before! List, Just watch the very unlikely video. Scars in the head. I am meteorite dubious! http://www.cbs12.com/news/top-stories/stories/vid_11507.shtml Dirk Ross...Tokyo __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.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://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Chelyabinsk Contributed by: Jarkko Kettunen 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://six.pairlist.net/mailman/listinfo/meteorite-list
