[meteorite-list] KATOL (L6) is official
Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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] KATOL (L6) is official
Wow, this is just a surprize, or maybe not ? For me the crust looks alot like chondrite material, so Im not surprized here. But still interesting -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryty.pl marcin(at)meteoryty.pl http://www.PolandMET.com marcin(at)polandmet.com http://www.Gao-Guenie.com GSM: +48 (793) 567667 [ Member of Polish Meteoritical Society ] Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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] KATOL (L6) is official
I'm glad I did not take that bet on this one. Surprised also. Cheers John On Tue, Dec 31, 2013 at 7:30 AM, PolandMET mar...@polandmet.com wrote: Wow, this is just a surprize, or maybe not ? For me the crust looks alot like chondrite material, so Im not surprized here. But still interesting -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryty.pl marcin(at)meteoryty.pl http://www.PolandMET.com marcin(at)polandmet.com http://www.Gao-Guenie.com GSM: +48 (793) 567667 [ Member of Polish Meteoritical Society ] Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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
Re: [meteorite-list] KATOL (L6) is official
Nice GeoChem data. Interesting to see the XFR data included. Happy New Year! Jim Wooddell On 12/31/2013 8:14 AM, karmaka wrote: Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6963 - Release Date: 12/31/13 -- Jim Wooddell jim.woodd...@suddenlink.net http://pages.suddenlink.net/chondrule/ __ 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] KATOL (L6) is official
Super write-up by Laurence Garvie, but strange that there was so much mystery surrounding what turns out to be garden variety L6, albeit a nice fresh fall. I wonder why people thought it was achondrite-ung? Oxygen and geochem are unequivocal EOC, no mystery at all. Carl Agee * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 9:06 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Nice GeoChem data. Interesting to see the XFR data included. Happy New Year! Jim Wooddell On 12/31/2013 8:14 AM, karmaka wrote: Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6963 - Release Date: 12/31/13 -- Jim Wooddell jim.woodd...@suddenlink.net http://pages.suddenlink.net/chondrule/ __ 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] 2014 Wishes
Hello List, Listees, Listers, Listoids here, there, and everywhere ... Midnight in about 6 hours CET and therefore time to wish you and yours a wonderful, happy, prosperous and healthy New Year! Bernd __ 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] KATOL (L6) is official
Hi Carl and all! Yes, nice write-up! It seems to raise a bar for geochem if someone wanted to go this far with a particular specimen. Cool to see Karen involved! So now, I have all sorts of ideas for one I am working on! Now all I need to do is win the lottery! NMU is becoming or has become the one stop shop for meteorites! Nice! Happy New Year! Jim On 12/31/2013 10:14 AM, Carl Agee wrote: Super write-up by Laurence Garvie, but strange that there was so much mystery surrounding what turns out to be garden variety L6, albeit a nice fresh fall. I wonder why people thought it was achondrite-ung? Oxygen and geochem are unequivocal EOC, no mystery at all. Carl Agee * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 9:06 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Nice GeoChem data. Interesting to see the XFR data included. Happy New Year! Jim Wooddell On 12/31/2013 8:14 AM, karmaka wrote: Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6963 - Release Date: 12/31/13 -- Jim Wooddell jim.woodd...@suddenlink.net http://pages.suddenlink.net/chondrule/ __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6963 - Release Date: 12/31/13 -- Jim Wooddell jim.woodd...@suddenlink.net http://pages.suddenlink.net/chondrule/ __ 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 preservation question
Hello all! I am trying to find a better method to preserve iron and pallasite slices from rusting. I currently use that standard plastic box with silica and a good closing tape. The silica remains unsaturated for about 6-12 months and after this time I need to replace it. Does anyone here tried a closing method such as glue to prevent any moisture to get into the box and eliminating the annoying 6-12 months periodic maintenance? I still have 2 small Bendego 2.43g and 5.15g slices available. Also have some new Campinorte shale never available to the market. Happy New Year Andre __ 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] KATOL (L6) is official
Carl, the huge metal nodules, the large green crystals throughout the matrix, very odd meteorites, everyone who looked at it thought it was an achondrite, including many scientists. I've never seen an L6 with white matrix and some pieces nearly green with crystals. Not your garden variety L6 for sure. Michael Farmer Sent from my iPad On Dec 31, 2013, at 10:14 AM, Carl Agee a...@unm.edu wrote: Super write-up by Laurence Garvie, but strange that there was so much mystery surrounding what turns out to be garden variety L6, albeit a nice fresh fall. I wonder why people thought it was achondrite-ung? Oxygen and geochem are unequivocal EOC, no mystery at all. Carl Agee * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 9:06 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Nice GeoChem data. Interesting to see the XFR data included. Happy New Year! Jim Wooddell On 12/31/2013 8:14 AM, karmaka wrote: Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6963 - Release Date: 12/31/13 -- Jim Wooddell jim.woodd...@suddenlink.net http://pages.suddenlink.net/chondrule/ __ 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] Most searched meteorites of 2013
All, Here are the top 10 meteorite searches from the MetBull database in 2013, in decreasing order of popularity. Sikhote-Alin (Iron, IIAB) Chelyabinsk (LL5) Northwest Africa 7325 (Achondrite-ung) Hoba (Iron, IVB) Fukang (Pallasite, PMG) Northwest Africa 7034 (Martian (basaltic breccia)) Tissint (Martian (shergottite)) Northwest Africa 869 (L3-6) Campo del Cielo (Iron, IAB-MG) Allende (CV3) Sikhote-Alin, Fukang, NWA 869, Campo, and Allende have been perennial favorites since I first compiled the list in 2007. Happy new year! Jeff __ 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] KATOL (L6) is official
Hi Mike, No doubt an interesting meteorite! I guess I should qualify it by saying the oxygen and the olivine and pyroxene geochem data are garden variety EOC. I guess looks can be deceiving -- yet another testimony to lab data being the blind taste test. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 10:23 AM, Michael Farmer m...@meteoriteguy.com wrote: Carl, the huge metal nodules, the large green crystals throughout the matrix, very odd meteorites, everyone who looked at it thought it was an achondrite, including many scientists. I've never seen an L6 with white matrix and some pieces nearly green with crystals. Not your garden variety L6 for sure. Michael Farmer Sent from my iPad On Dec 31, 2013, at 10:14 AM, Carl Agee a...@unm.edu wrote: Super write-up by Laurence Garvie, but strange that there was so much mystery surrounding what turns out to be garden variety L6, albeit a nice fresh fall. I wonder why people thought it was achondrite-ung? Oxygen and geochem are unequivocal EOC, no mystery at all. Carl Agee * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 9:06 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Nice GeoChem data. Interesting to see the XFR data included. Happy New Year! Jim Wooddell On 12/31/2013 8:14 AM, karmaka wrote: Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6963 - Release Date: 12/31/13 -- Jim Wooddell jim.woodd...@suddenlink.net http://pages.suddenlink.net/chondrule/ __ 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] Jan. 16 May Be Last Best Chance to Search for Comet ISON's Remains
http://www.universetoday.com/107542/jan-16-may-be-last-best-chance-to-search-for-comet-isons-remains/ Jan. 16 May Be Last Best Chance to Search for Comet ISON's Remains by Bob King Universe Today December 30, 2013 [Graphic] Comet ISON revolves around the sun in steeply inclined orbit. Earth will pass through the plane of that orbit on Jan. 16. As we look up toward the comet, ISON's dust stacks up along our line of sight and could appear temporarily brighter. Credit: solarsystemscope.com with annotations and additions by Bob King Is there any hope of detecting what's left of Comet ISON after the sun proved too much for its delicate constitution? German amateur astronomer Uwe Pilz suggest there remains a possibility that a photographic search might turn up a vestige of the comet when Earth crosses its orbital plane on January 16, 2014. On and around that date, we'll be staring straight across the sheet of debris left in the comet's path. Whatever bits of dust and grit it left behind will be visually compressed and perhaps detectable in time exposure photos using wide-field telescopes. To understand why ISON would appear brighter, consider the bright band of the Milky Way. It stands apart from the helter-skelter scatter of stars for the same reason; when we look in its direction, we peer into the galaxy's flattened disk where the stars are most concentrated. They stack up to create a brighter band slicing across the sky. Similarly, dust shed by Comet ISON will be stacked up from Earth's perspective on the 16th. This isn't the first time a comet has leapt in brightness at an orbital plane crossing. You might recall that Comet C/2011 L4 PanSTARRS temporarily brightened and assumed a striking linear shape when Earth passed through its orbital plane on May 27. Pilz, a longtime contributor to the online Comets Mailing List for dedicated comet observers, has made a series of simulations of Comet ISON for mid-January using his own comet tail program. He bases his calculations on presumed larger particle sizes 1 mm-10 mm - not the more common 0.3-10 micrometer fragments normally shed by comets. The assumption here is that ISON has remained virtually invisible since perihelion because it broke up into a smaller number of larger-than-usual pieces that don't reflect light nearly as efficiently as larger amounts of smaller dust particles. The images look bizarre at first glance but totally make sense given the unique perspective. Notice that the debris stream becomes thinner as we approach orbital crossing; any potential dust blobs appear exactly edge-on similar to the way Saturn's rings narrow to a line when Earth passes through the ring plane. Besides the fact that not a single Earth-bound telescope has succeeded to date in photographing any of ISON's debris, amateurs who attempt to fire one last volley the comet's way will face one additional barrier - the moon. A full moon the same day as orbital crossing will make a difficult task that much more challenging. Digital photography can get around moonlight in many circumstances, but when it comes to the faintest of the faint, the last thing you want in your sky is the high-riding January moon. One night past full, a narrow window of darkness opens up and widens with each passing night. Will anyone take up the challenge? UPDATE Dec. 30 10 a.m. (CST): We may have our very first photo of Comet ISON from the ground! Astrophotographer Hisayoshi Kato made a deep image of the comet's location in Draco on December 29 using a 180mm f/2.8 telephoto lens near the Mauna Loa Observatory in Hawaii at 11,000 feet. He stacked 5 exposures totaling 110 minutes to record what could be the ISON's debris cloud. It's incredibly diffuse and faint and about the same brightness as the Integrated Flux Nebula, dust clouds threading the galaxy that glow not by the light of a nearby star(s) but instead from the integrated flux of all the stars in the Milky Way. We're talking as dim as it gets. What the photo recorded is only a tentative identification - followup observations are planned to confirm whether the object is real or an artifact from image processing. Stay tuned. [Image] The sausage-like glow running from upper left to lower right in this negative image may the dusty remains of Comet ISON as photographed on Dec. 29 from Hawaii. The blue dot shows the predicted position of the comet; the green type gives the names of stars. Click to enlarge. Credit: Hisayoshi Kato __ 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] Meteorite preservation question
Do yourself a favor and buy a dehumidifier and a humidity gauge. Depending on where you live, depends on how much you¹ll have to run it. I live in Jersey so mine runs late spring to early fall when humidity is over 40% in my ³Moon Room². Pieces I have etched 20 years ago have not a sign of rust! Even a huge chunk of crappy Nantan (iron, not shale) I have stays nice. I also have a nice piece of Morasko that had a vug in it that just kept rusting. Cut it off and the rest has never rusted since. Hope that helps. Cheers and Happy New Year! On 12/31/13, 1:19 PM, André Moutinho mouti...@gmail.com wrote: Hello all! I am trying to find a better method to preserve iron and pallasite slices from rusting. I currently use that standard plastic box with silica and a good closing tape. The silica remains unsaturated for about 6-12 months and after this time I need to replace it. Does anyone here tried a closing method such as glue to prevent any moisture to get into the box and eliminating the annoying 6-12 months periodic maintenance? I still have 2 small Bendego 2.43g and 5.15g slices available. Also have some new Campinorte shale never available to the market. Happy New Year Andre __ 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] Most searched meteorites of 2013
Something happened in week 18 of 2013 (end of April), and thousands of people looked at Sikhote-Alin. This was about 7 weeks after the fall of Chelyabinsk. I don't know what it triggered this. But this spike, combined with the normal background interest in S-A, put it in 1st place. In point of fact, you may recall that my server got taken down by a crush of hits on Fukang in October, when an article got posted on the Facebook page I f---ing love science. From the log, I could tell that I was getting many thousands of (failed) hits per hour. If I could have handled this, Fukang would have beaten both S-A and Chelyabinsk. Jeff On 12/31/2013 3:25 PM, Michael Farmer wrote: Great data Jeff. Thanks for compiling and reporting it to us. I'm shocked that Chelyabinsk wasn't number one by orders of magnitude The rest are no surprising. Michael Farmer Sent from my iPhone On Dec 31, 2013, at 11:47 AM, Jeff Grossman jngross...@gmail.com wrote: All, Here are the top 10 meteorite searches from the MetBull database in 2013, in decreasing order of popularity. Sikhote-Alin (Iron, IIAB) Chelyabinsk (LL5) Northwest Africa 7325 (Achondrite-ung) Hoba (Iron, IVB) Fukang (Pallasite, PMG) Northwest Africa 7034 (Martian (basaltic breccia)) Tissint (Martian (shergottite)) Northwest Africa 869 (L3-6) Campo del Cielo (Iron, IAB-MG) Allende (CV3) Sikhote-Alin, Fukang, NWA 869, Campo, and Allende have been perennial favorites since I first compiled the list in 2007. Happy new year! Jeff __ 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] Most searched meteorites of 2013
Very interesting Jeff Can You post detailed list lets say TOP100 with numbers of hits on each meteorite ? Why peoples search for Sikhotes ? NWA869 ? hmm. They dont see enough of them on ebay, google photos, web pages, their own boxes ? This is like search for potatos or coca-cola bottles. Strange -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryty.pl marcin(at)meteoryty.pl http://www.PolandMET.com marcin(at)polandmet.com http://www.Gao-Guenie.com GSM: +48 (793) 567667 [ Member of Polish Meteoritical Society ] Something happened in week 18 of 2013 (end of April), and thousands of people looked at Sikhote-Alin. This was about 7 weeks after the fall of Chelyabinsk. I don't know what it triggered this. But this spike, combined with the normal background interest in S-A, put it in 1st place. In point of fact, you may recall that my server got taken down by a crush of hits on Fukang in October, when an article got posted on the Facebook page I f---ing love science. From the log, I could tell that I was getting many thousands of (failed) hits per hour. If I could have handled this, Fukang would have beaten both S-A and Chelyabinsk. Jeff On 12/31/2013 3:25 PM, Michael Farmer wrote: Great data Jeff. Thanks for compiling and reporting it to us. I'm shocked that Chelyabinsk wasn't number one by orders of magnitude The rest are no surprising. Michael Farmer Sent from my iPhone On Dec 31, 2013, at 11:47 AM, Jeff Grossman jngross...@gmail.com wrote: All, Here are the top 10 meteorite searches from the MetBull database in 2013, in decreasing order of popularity. Sikhote-Alin (Iron, IIAB) Chelyabinsk (LL5) Northwest Africa 7325 (Achondrite-ung) Hoba (Iron, IVB) Fukang (Pallasite, PMG) Northwest Africa 7034 (Martian (basaltic breccia)) Tissint (Martian (shergottite)) Northwest Africa 869 (L3-6) Campo del Cielo (Iron, IAB-MG) Allende (CV3) Sikhote-Alin, Fukang, NWA 869, Campo, and Allende have been perennial favorites since I first compiled the list in 2007. Happy new year! Jeff __ 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
Re: [meteorite-list] KATOL (L6) is official
The lab data you (Carl) mention suggests only L, nothing more. No one's arguing with that. We had that data months ago. As I understand it, not one chondrule was observed optically in Katol; they were found only when examining BSE images. This would have ruled out a chondritic classification prior to the widespread use of SEM's. And the fact that we're discussing this now is relevant; no other type 6 chondrite has been metamorphosed to this extent (literally invisible chondrules, unless you have a multi-million dollar piece of equipment at your disposal). Since this meteorite doesn't texturally resemble any known L's, having been melted and slowly cooled to a poikilitic texture, deeming it an L6 is pigeonholing it. Larger-scale heterogeneities resulted in 140 gram iron meteorites and 200+ gram literally metallic-iron-free meteorites with glossy Ca-rich fusion crusts. Such things aren't usually glossed over when classifying a meteorite. It's just like calling Al Haggounia 001 an aubrite, EL6/7, or EL3. Just because you can justify a classification with a few parameters doesn't make it an accurate descriptor of a meteorite. Which of those classifications is best? EL3. Is it right? No. That stone doesn't texturally resemble any other (enstatite) chondrites of any kind. It's anomalous. Rather like Katol. Jason www.fallsandfinds.com On Tue, Dec 31, 2013 at 11:03 AM, Carl Agee a...@unm.edu wrote: Hi Mike, No doubt an interesting meteorite! I guess I should qualify it by saying the oxygen and the olivine and pyroxene geochem data are garden variety EOC. I guess looks can be deceiving -- yet another testimony to lab data being the blind taste test. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 10:23 AM, Michael Farmer m...@meteoriteguy.com wrote: Carl, the huge metal nodules, the large green crystals throughout the matrix, very odd meteorites, everyone who looked at it thought it was an achondrite, including many scientists. I've never seen an L6 with white matrix and some pieces nearly green with crystals. Not your garden variety L6 for sure. Michael Farmer Sent from my iPad On Dec 31, 2013, at 10:14 AM, Carl Agee a...@unm.edu wrote: Super write-up by Laurence Garvie, but strange that there was so much mystery surrounding what turns out to be garden variety L6, albeit a nice fresh fall. I wonder why people thought it was achondrite-ung? Oxygen and geochem are unequivocal EOC, no mystery at all. Carl Agee * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 9:06 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Nice GeoChem data. Interesting to see the XFR data included. Happy New Year! Jim Wooddell On 12/31/2013 8:14 AM, karmaka wrote: Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6963 - Release Date: 12/31/13 -- Jim Wooddell jim.woodd...@suddenlink.net http://pages.suddenlink.net/chondrule/ __ 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 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list
Re: [meteorite-list] KATOL (L6) is official
Mike, Andy, Jim, I don't have bias one way or another in the case of Katol, but looking at the data in the write-up this is a clear-cut L6 chondrite -- no ambiguity. There are chondrules albeit highly equilbrated, the olivines are L6, the pyroxenes are L6, the oxygen isotopes are L-chondrite. If there were no chondrules, high Wo and OC-type olivine and pyroxene, then one could make the case for type 7. I'm just going by the numbers given in the write-up, I haven't looked at this beyond a quick glance in hand specimen, not an achondrite -- period. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 3:19 PM, Michael Farmer m...@meteoriteguy.com wrote: I was also under the impression that this was transitional likely between L chondrites and primitive achondrites. Michael Farmer Sent from my iPhone On Dec 31, 2013, at 3:15 PM, Andy Tomkins rockdo...@gmail.com wrote: With great respect and just to be a little bit controversial... With a high wollastonite content in the opx like that, sparse remnant chondrules and many of the other features, perhaps this might be a L7? An example of why there needs to be a clearer definition of what defines Type 6 from Type 7? Andy Tomkins On Wednesday, 1 January 2014, Andy Tomkins wrote: On Wednesday, 1 January 2014, Carl Agee wrote: Hi Mike, No doubt an interesting meteorite! I guess I should qualify it by saying the oxygen and the olivine and pyroxene geochem data are garden variety EOC. I guess looks can be deceiving -- yet another testimony to lab data being the blind taste test. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 10:23 AM, Michael Farmer m...@meteoriteguy.com wrote: Carl, the huge metal nodules, the large green crystals throughout the matrix, very odd meteorites, everyone who looked at it thought it was an achondrite, including many scientists. I've never seen an L6 with white matrix and some pieces nearly green with crystals. Not your garden variety L6 for sure. Michael Farmer Sent from my iPad On Dec 31, 2013, at 10:14 AM, Carl Agee a...@unm.edu wrote: Super write-up by Laurence Garvie, but strange that there was so much mystery surrounding what turns out to be garden variety L6, albeit a nice fresh fall. I wonder why people thought it was achondrite-ung? Oxygen and geochem are unequivocal EOC, no mystery at all. Carl Agee * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 9:06 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Nice GeoChem data. Interesting to see the XFR data included. Happy New Year! Jim Wooddell On 12/31/2013 8:14 AM, karmaka wrote: Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6963 - Release Date: 12/31/13 -- Jim Wooddell jim.woodd...@suddenlink.net http://pages.suddenlink.net/chondrule/ __ Vis __ 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] Most searched meteorites of 2013
Hello Jeff, hello List, Jeff wrote: Something happened in week 18 of 2013 (end of April), and thousands of people looked at Sikhote-Alin. This was about 7 weeks after the fall of Chelyabinsk. I don't know what it triggered this. One possible explanation may be that people hoped they would find background info (brightness, altitude, velocity, inclination, radiated energy, total impact energy, terminal speed on impact, etc., etc.) that they could compare with Chelyabinsk parameters! Best wishes, 13 minutes till midnight! Bernd __ 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] KATOL (L6) is official
Jason, The lab data suggest more than just L. The low standard deviation on the Fa and Fs indicate type 5 or 6, with the the faint chondrules and high Wo we are definitely at type 6. Just because it's hard to see the chondrules with a petrographic microscope doesn't mean they aren't there. I hope you aren't suggesting that we go back to optically determining 2Vs in olivine to get the Fa-content. Electron microprobes are modern the workhorse for classification, add in oxygen isotopes and you have it pretty much covered. Carl PS: the albitic plagioclase in Katol is OC plag. * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 3:39 PM, Jason Utas meteorite...@gmail.com wrote: The lab data you (Carl) mention suggests only L, nothing more. No one's arguing with that. We had that data months ago. As I understand it, not one chondrule was observed optically in Katol; they were found only when examining BSE images. This would have ruled out a chondritic classification prior to the widespread use of SEM's. And the fact that we're discussing this now is relevant; no other type 6 chondrite has been metamorphosed to this extent (literally invisible chondrules, unless you have a multi-million dollar piece of equipment at your disposal). Since this meteorite doesn't texturally resemble any known L's, having been melted and slowly cooled to a poikilitic texture, deeming it an L6 is pigeonholing it. Larger-scale heterogeneities resulted in 140 gram iron meteorites and 200+ gram literally metallic-iron-free meteorites with glossy Ca-rich fusion crusts. Such things aren't usually glossed over when classifying a meteorite. It's just like calling Al Haggounia 001 an aubrite, EL6/7, or EL3. Just because you can justify a classification with a few parameters doesn't make it an accurate descriptor of a meteorite. Which of those classifications is best? EL3. Is it right? No. That stone doesn't texturally resemble any other (enstatite) chondrites of any kind. It's anomalous. Rather like Katol. Jason www.fallsandfinds.com On Tue, Dec 31, 2013 at 11:03 AM, Carl Agee a...@unm.edu wrote: Hi Mike, No doubt an interesting meteorite! I guess I should qualify it by saying the oxygen and the olivine and pyroxene geochem data are garden variety EOC. I guess looks can be deceiving -- yet another testimony to lab data being the blind taste test. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 10:23 AM, Michael Farmer m...@meteoriteguy.com wrote: Carl, the huge metal nodules, the large green crystals throughout the matrix, very odd meteorites, everyone who looked at it thought it was an achondrite, including many scientists. I've never seen an L6 with white matrix and some pieces nearly green with crystals. Not your garden variety L6 for sure. Michael Farmer Sent from my iPad On Dec 31, 2013, at 10:14 AM, Carl Agee a...@unm.edu wrote: Super write-up by Laurence Garvie, but strange that there was so much mystery surrounding what turns out to be garden variety L6, albeit a nice fresh fall. I wonder why people thought it was achondrite-ung? Oxygen and geochem are unequivocal EOC, no mystery at all. Carl Agee * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 9:06 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Nice GeoChem data. Interesting to see the XFR data included. Happy New Year! Jim Wooddell On 12/31/2013 8:14 AM, karmaka wrote: Dear list members, Katol is officially listed as an L6 in the Bulletin now! http://www.lpi.usra.edu/meteor/metbull.php?sea=Katolsfor=namesants=falls=valids=stype=containslrec=50map=gebrowse=country=Allsrt=namecateg=Allmblist=Allrect=phot=snew=0pnt=Normal%20tablecode=58500 Happy new year 2014 to all of you! Martin __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database:
Re: [meteorite-list] KATOL (L6) is official
Hello Carl, All, The low standard deviation on Fa and Fs denotes a high degree of equilibration, not just 5 or 6. Five or above would be more accurate. The nearly absent chondrules and high Wo are at [or beyond] type 6. If you're a researcher who believes in type 7 chondrites, since not all do. Based upon similar observations, one would simply call Al Haggounia 001 an aubrite, or an EL3 if one were lucky enough to find an unequilibrated chondrule. The textural observations would be irrelevant. If we looked at other meteorites in a similar fashion, subgroups and textural designations would disappear. Since nomenclature blows back and forth, this is something of a semantic argument; as I understand it, the poikilitic shergottite you recently analyzed would have been a lherzolite only a few years ago, and no amount of discussion then or now would have changed that. And there is of course variation in analyses. NWA 5205 is paired with NWA 5421 and our NWA 6501. Which was supposedly paired with NWA 6283. Very distinctive material, with classifications ranging from LL3.2 to LL3.7 to H3.6. But you did note that the shergottite was poikilitic. So is Katol. This stone has been metamorphosed in a unique way for a chondrite, and its classification required a much greater degree of attention because of that. But the result does not reflect that. Just like Al Haggounia 001, the aubrite. It's odd, and I do think that 'pigeonholing' is the right term to use here. Regards, Jason www.fallsandfinds.com On Tue, Dec 31, 2013 at 2:45 PM, Carl Agee a...@unm.edu wrote: Mike, Andy, Jim, I don't have bias one way or another in the case of Katol, but looking at the data in the write-up this is a clear-cut L6 chondrite -- no ambiguity. There are chondrules albeit highly equilbrated, the olivines are L6, the pyroxenes are L6, the oxygen isotopes are L-chondrite. If there were no chondrules, high Wo and OC-type olivine and pyroxene, then one could make the case for type 7. I'm just going by the numbers given in the write-up, I haven't looked at this beyond a quick glance in hand specimen, not an achondrite -- period. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 3:19 PM, Michael Farmer m...@meteoriteguy.com wrote: I was also under the impression that this was transitional likely between L chondrites and primitive achondrites. Michael Farmer Sent from my iPhone On Dec 31, 2013, at 3:15 PM, Andy Tomkins rockdo...@gmail.com wrote: With great respect and just to be a little bit controversial... With a high wollastonite content in the opx like that, sparse remnant chondrules and many of the other features, perhaps this might be a L7? An example of why there needs to be a clearer definition of what defines Type 6 from Type 7? Andy Tomkins On Wednesday, 1 January 2014, Andy Tomkins wrote: On Wednesday, 1 January 2014, Carl Agee wrote: Hi Mike, No doubt an interesting meteorite! I guess I should qualify it by saying the oxygen and the olivine and pyroxene geochem data are garden variety EOC. I guess looks can be deceiving -- yet another testimony to lab data being the blind taste test. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 10:23 AM, Michael Farmer m...@meteoriteguy.com wrote: Carl, the huge metal nodules, the large green crystals throughout the matrix, very odd meteorites, everyone who looked at it thought it was an achondrite, including many scientists. I've never seen an L6 with white matrix and some pieces nearly green with crystals. Not your garden variety L6 for sure. Michael Farmer Sent from my iPad On Dec 31, 2013, at 10:14 AM, Carl Agee a...@unm.edu wrote: Super write-up by Laurence Garvie, but strange that there was so much mystery surrounding what turns out to be garden variety L6, albeit a nice fresh fall. I wonder why people thought it was achondrite-ung? Oxygen and geochem are unequivocal EOC, no mystery at all. Carl Agee * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 9:06 AM, Jim Wooddell jim.woodd...@suddenlink.net
Re: [meteorite-list] KATOL (L6) is official
Can't resist doing some arm-chair science... usually a bad move, but oh well... I'll probably end up retracting much of this speculation... There IS something strange about this meteorite to me. I don't know how good the XRF analysis is, but it is not what I would expect from an L chondrite. These analyses show a 30-40% enrichment in Ca and Al relative to Si over what an L chondrite should be, and siderophiles are ~20% too high as well. If these are accurate, then there has been fractionation, suggestive of enrichment in low-melting components (which is odd). Sodium does not fit this story, but it's a harder element to analyze by xrf. I also agree that coarse poikilitic grains are hard to explain by solid-state metamorpism, but they could also be derived from relict chondrules. If this rock was melted to a large extent, I'd expect it to be depleted in metal and sulfide. So I'm betting that the whole system has experienced low-degree partial melting, and some of these melts have infiltrated this particular chunk of high-metamorphic-grade L chondrite. I agree with Carl that this has hallmarks of what many people call a type 7 chondrite. But the whole issue of how to draw lines (or if there ARE lines) between primitive achondrites, type 7 chondrites, and products of shock heating/melting is very fuzzy and tends to be highly interpretive. In a sense, this is the same discussion that surrounds Portales Valley, an ordinary chondrite that has also been around the block. Here is an article on Katol that Laurence Garvie pointed me to: http://www.geosocindia.org/abstracts/2013/feb/p151-157.pdf Jeff On 12/31/2013 6:33 PM, Jason Utas wrote: Hello Carl, All, The low standard deviation on Fa and Fs denotes a high degree of equilibration, not just 5 or 6. Five or above would be more accurate. The nearly absent chondrules and high Wo are at [or beyond] type 6. If you're a researcher who believes in type 7 chondrites, since not all do. Based upon similar observations, one would simply call Al Haggounia 001 an aubrite, or an EL3 if one were lucky enough to find an unequilibrated chondrule. The textural observations would be irrelevant. If we looked at other meteorites in a similar fashion, subgroups and textural designations would disappear. Since nomenclature blows back and forth, this is something of a semantic argument; as I understand it, the poikilitic shergottite you recently analyzed would have been a lherzolite only a few years ago, and no amount of discussion then or now would have changed that. And there is of course variation in analyses. NWA 5205 is paired with NWA 5421 and our NWA 6501. Which was supposedly paired with NWA 6283. Very distinctive material, with classifications ranging from LL3.2 to LL3.7 to H3.6. But you did note that the shergottite was poikilitic. So is Katol. This stone has been metamorphosed in a unique way for a chondrite, and its classification required a much greater degree of attention because of that. But the result does not reflect that. Just like Al Haggounia 001, the aubrite. It's odd, and I do think that 'pigeonholing' is the right term to use here. Regards, Jason www.fallsandfinds.com On Tue, Dec 31, 2013 at 2:45 PM, Carl Agee a...@unm.edu wrote: Mike, Andy, Jim, I don't have bias one way or another in the case of Katol, but looking at the data in the write-up this is a clear-cut L6 chondrite -- no ambiguity. There are chondrules albeit highly equilbrated, the olivines are L6, the pyroxenes are L6, the oxygen isotopes are L-chondrite. If there were no chondrules, high Wo and OC-type olivine and pyroxene, then one could make the case for type 7. I'm just going by the numbers given in the write-up, I haven't looked at this beyond a quick glance in hand specimen, not an achondrite -- period. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 3:19 PM, Michael Farmer m...@meteoriteguy.com wrote: I was also under the impression that this was transitional likely between L chondrites and primitive achondrites. Michael Farmer Sent from my iPhone On Dec 31, 2013, at 3:15 PM, Andy Tomkins rockdo...@gmail.com wrote: With great respect and just to be a little bit controversial... With a high wollastonite content in the opx like that, sparse remnant chondrules and many of the other features, perhaps this might be a L7? An example of why there needs to be a clearer definition of what defines Type 6 from Type 7? Andy Tomkins On Wednesday, 1 January 2014, Andy Tomkins wrote: On Wednesday, 1 January 2014, Carl Agee wrote: Hi Mike, No doubt an interesting meteorite! I guess I should qualify it by saying the oxygen and the olivine and pyroxene
Re: [meteorite-list] KATOL (L6) is official
Hi Jason et al. Nice that the Met-list is lively again! Poikilitic shergotitte is Tony Irving's invention and woe to those who don't use that term, and instead use the antiquated lherzolitic. I'm one of those old fashion people who actually like the term lherzolitic shergottite, but have succumb to severe peer-pressure and now use poikilitic in my write-ups. I did have a chance recently to invent another new martian meteorite name Augite Basalt (NWA 8159), which I am sure will be subject to all sorts of nomenclature pot-shots. Also I have been told by several experts that NWA 7034 is regolith breccia and not a basaltic breccia. Happy New Year! Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 4:33 PM, Jason Utas meteorite...@gmail.com wrote: Hello Carl, All, The low standard deviation on Fa and Fs denotes a high degree of equilibration, not just 5 or 6. Five or above would be more accurate. The nearly absent chondrules and high Wo are at [or beyond] type 6. If you're a researcher who believes in type 7 chondrites, since not all do. Based upon similar observations, one would simply call Al Haggounia 001 an aubrite, or an EL3 if one were lucky enough to find an unequilibrated chondrule. The textural observations would be irrelevant. If we looked at other meteorites in a similar fashion, subgroups and textural designations would disappear. Since nomenclature blows back and forth, this is something of a semantic argument; as I understand it, the poikilitic shergottite you recently analyzed would have been a lherzolite only a few years ago, and no amount of discussion then or now would have changed that. And there is of course variation in analyses. NWA 5205 is paired with NWA 5421 and our NWA 6501. Which was supposedly paired with NWA 6283. Very distinctive material, with classifications ranging from LL3.2 to LL3.7 to H3.6. But you did note that the shergottite was poikilitic. So is Katol. This stone has been metamorphosed in a unique way for a chondrite, and its classification required a much greater degree of attention because of that. But the result does not reflect that. Just like Al Haggounia 001, the aubrite. It's odd, and I do think that 'pigeonholing' is the right term to use here. Regards, Jason www.fallsandfinds.com On Tue, Dec 31, 2013 at 2:45 PM, Carl Agee a...@unm.edu wrote: Mike, Andy, Jim, I don't have bias one way or another in the case of Katol, but looking at the data in the write-up this is a clear-cut L6 chondrite -- no ambiguity. There are chondrules albeit highly equilbrated, the olivines are L6, the pyroxenes are L6, the oxygen isotopes are L-chondrite. If there were no chondrules, high Wo and OC-type olivine and pyroxene, then one could make the case for type 7. I'm just going by the numbers given in the write-up, I haven't looked at this beyond a quick glance in hand specimen, not an achondrite -- period. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 3:19 PM, Michael Farmer m...@meteoriteguy.com wrote: I was also under the impression that this was transitional likely between L chondrites and primitive achondrites. Michael Farmer Sent from my iPhone On Dec 31, 2013, at 3:15 PM, Andy Tomkins rockdo...@gmail.com wrote: With great respect and just to be a little bit controversial... With a high wollastonite content in the opx like that, sparse remnant chondrules and many of the other features, perhaps this might be a L7? An example of why there needs to be a clearer definition of what defines Type 6 from Type 7? Andy Tomkins On Wednesday, 1 January 2014, Andy Tomkins wrote: On Wednesday, 1 January 2014, Carl Agee wrote: Hi Mike, No doubt an interesting meteorite! I guess I should qualify it by saying the oxygen and the olivine and pyroxene geochem data are garden variety EOC. I guess looks can be deceiving -- yet another testimony to lab data being the blind taste test. Carl * Carl B. Agee Director and Curator, Institute of Meteoritics Professor, Earth and Planetary Sciences MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 Tel: (505) 750-7172 Fax: (505) 277-3577 Email: a...@unm.edu http://meteorite.unm.edu/people/carl_agee/ On Tue, Dec 31, 2013 at 10:23 AM, Michael Farmer m...@meteoriteguy.com wrote: Carl, the huge metal nodules, the large green
[meteorite-list] Happy New Year!
G'Day Extreme Rock Nuts Happy New Year! Be safe and have fun. And thank you Art for this continued service. Cheers John __ 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] NEW YEAR
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[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Almahata Sitta Contributed by: Stephan Decker 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
[meteorite-list] Greetings!
To the List, Wishing all a Happy, Prosperous and Healthy New Year! Guido and Joan Deiro __ 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
