[meteorite-list] Test 4:49am
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Re: [meteorite-list] Test 4:58am
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Re: [meteorite-list] KATOL (L6) is official
Hi Jeff and all! I'd say XRF data can and does vary. Not enough info in the write up on testing methods. What is the accepted procedure agreed to using XRF to test? BIG QUESTION! Read on! A few years ago, XRF seemed to not be considered much in this community. Only a few were using it pretty much only for determining if a rock had the attributes to be considered a meteorite. Somewhat like PIXE tests. Some places have XRF, some have PIXE where they are looking for key elements. I know XRF technology has improved. I found it refreshing that the XRF data was listed. Correlations being standard methods of lab testing and XRF showed to be 0.85 to 0.95 (or there abouts) by the EPA in a paper about testing lead a while back that I read. Calibration reference is key to accurate, repeatable measurements with XRF. In the gold and silver industry, they have been accepted widely but generally on massed samples (by melt - Homogenous mixture). My question about the XRF data is how was the measurement taken. It stated whole rock and the mean of two shots??? So, does that mean that the sample was massed and pressed into a disk then shot twice or what? I'd love to know how this was performed. Overall, with probe data, the XRF is somewhat redundant and without what it was referenced to, eye candy, but very interesting. Don't think XRF would take the place of probe data. Both can be subjective to a point. It would be nice to read if the same standards were used for calibration for both the probe and XRF were used and the correlation. I do think XRF can have it's place. Standard's should be developed on how it might be used. Maybe they are out there. Point and shoot, if you are looking for a quantitative answer, is not the way IMHO. Jim On 12/31/2013 6:04 PM, Jeff Grossman wrote: 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 -- 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
Mike, I can host it for a time if you have a big image. However, why not send it to Jeff (sized edited to 800 pixels) for inclusion in the bulletin? He takes care of that pretty quick. Jim On 12/31/2013 6:31 PM, Michael Farmer wrote: Anyone who can host a photo to post to the list, let me know. I have a great photo of my 136 gram oriented Katol (L6) iron to share. Michael Farmer - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6965 - 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
Yes, Jim, and this is why arm-chair science is not a good idea! We really have to wait for the publication to see what was done. There is a vast and long literature on XRF analysis of geological materials, including meteorites. The scientific community has accepted these for decades. The classic XRF technique involving preparation of fused disks and wavelength-dispersive analysis for major and minor elements has provided some of the most beautiful datasets in meteoritics (and earth science). In the 1960s, von Michaelis and co-workers produced classic papers showing the narrow range of bulk composition in chondrite groups using this kind of method. These and the wet-chemical analyses of Jarosewich (a now-extinct method, as far as I'm aware) provide some of the best, complete major-element data in bulk meteorites that we have to this day. At the other extreme, there are many quick and dirty energy-dispersive XRF methods these days that have much less precision and accuracy, e.g. the use of hand-held XRF systems on irregular bulk samples. And, there are many good and not-so-good methods in between. XRF is a very broad term, and we don't know what was done. So, I would not be so quick to dismiss XRF. It can be highly quantitative using a variety of well-documented, time-proven methods... and it can be virtually useless for the kind of interpretation that I did in my previous email. Jeff On 1/1/2014 9:25 AM, Jim Wooddell wrote: Hi Jeff and all! I'd say XRF data can and does vary. Not enough info in the write up on testing methods. What is the accepted procedure agreed to using XRF to test? BIG QUESTION! Read on! A few years ago, XRF seemed to not be considered much in this community. Only a few were using it pretty much only for determining if a rock had the attributes to be considered a meteorite. Somewhat like PIXE tests. Some places have XRF, some have PIXE where they are looking for key elements. I know XRF technology has improved. I found it refreshing that the XRF data was listed. Correlations being standard methods of lab testing and XRF showed to be 0.85 to 0.95 (or there abouts) by the EPA in a paper about testing lead a while back that I read. Calibration reference is key to accurate, repeatable measurements with XRF. In the gold and silver industry, they have been accepted widely but generally on massed samples (by melt - Homogenous mixture). My question about the XRF data is how was the measurement taken. It stated whole rock and the mean of two shots??? So, does that mean that the sample was massed and pressed into a disk then shot twice or what? I'd love to know how this was performed. Overall, with probe data, the XRF is somewhat redundant and without what it was referenced to, eye candy, but very interesting. Don't think XRF would take the place of probe data. Both can be subjective to a point. It would be nice to read if the same standards were used for calibration for both the probe and XRF were used and the correlation. I do think XRF can have it's place. Standard's should be developed on how it might be used. Maybe they are out there. Point and shoot, if you are looking for a quantitative answer, is not the way IMHO. Jim On 12/31/2013 6:04 PM, Jeff Grossman wrote: 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
[meteorite-list] List Mail
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Re: [meteorite-list] Most searched meteorites of 2013
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] KATOL (L6) is official
Anyone who can host a photo to post to the list, let me know. I have a great photo of my 136 gram oriented Katol (L6) iron to share. Michael Farmer Sent from my iPad On 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
Re: [meteorite-list] KATOL (L6) is official
Here is Mike Farmer's picture: http://s1192.photobucket.com/user/desertsunburn/media/katolphoto_zps463296b4.jpg.html -- 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
Mike, You could send that picture to Paul Swartz (valpar...@aol.com ) and he will post it on Picture of the Day. Jim, The pictures you see on the MetBulletin are really hosted in the Encyclopedia of Meteorites, owned and operated by the IMCA, and then linked to the MetBulletin. So you have to open an account there and then send your pictures to http://www.encyclopedia-of-meteorites.com/ Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: Jim Wooddell jim.woodd...@suddenlink.net To: meteorite-list meteorite-list@meteoritecentral.com Sent: Wed, Jan 1, 2014 7:31 am Subject: Re: [meteorite-list] KATOL (L6) is official Mike, I can host it for a time if you have a big image. However, why not send it to Jeff (sized edited to 800 pixels) for inclusion in the bulletin? He takes care of that pretty quick. Jim On 12/31/2013 6:31 PM, Michael Farmer wrote: Anyone who can host a photo to post to the list, let me know. I have a great photo of my 136 gram oriented Katol (L6) iron to share. Michael Farmer - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6965 - 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
Re: [meteorite-list] KATOL (L6) is official
Hi Anne! One can not post pictures in the proper place using the EOM method. They all go into the uncertain category. Jeff places them in the correct areasomething an EOM member can not do. Happy New Year. Jim On 1/1/2014 11:11 AM, Anne Black wrote: Mike, You could send that picture to Paul Swartz (valpar...@aol.com ) and he will post it on Picture of the Day. Jim, The pictures you see on the MetBulletin are really hosted in the Encyclopedia of Meteorites, owned and operated by the IMCA, and then linked to the MetBulletin. So you have to open an account there and then send your pictures to http://www.encyclopedia-of-meteorites.com/ Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: Jim Wooddell jim.woodd...@suddenlink.net To: meteorite-list meteorite-list@meteoritecentral.com Sent: Wed, Jan 1, 2014 7:31 am Subject: Re: [meteorite-list] KATOL (L6) is official Mike, I can host it for a time if you have a big image. However, why not send it to Jeff (sized edited to 800 pixels) for inclusion in the bulletin? He takes care of that pretty quick. Jim On 12/31/2013 6:31 PM, Michael Farmer wrote: Anyone who can host a photo to post to the list, let me know. I have a great photo of my 136 gram oriented Katol (L6) iron to share. Michael Farmer - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6965 - 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6966 - Release Date: 01/01/14 -- 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
Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: Hi Anne! One can not post pictures in the proper place using the EOM method. They all go into the uncertain category. Jeff places them in the correct areasomething an EOM member can not do. Happy New Year. Jim On 1/1/2014 11:11 AM, Anne Black wrote: Mike, You could send that picture to Paul Swartz (valpar...@aol.com ) and he will post it on Picture of the Day. Jim, The pictures you see on the MetBulletin are really hosted in the Encyclopedia of Meteorites, owned and operated by the IMCA, and then linked to the MetBulletin. So you have to open an account there and then send your pictures to http://www.encyclopedia-of-meteorites.com/ Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: Jim Wooddell jim.woodd...@suddenlink.net To: meteorite-list meteorite-list@meteoritecentral.com Sent: Wed, Jan 1, 2014 7:31 am Subject: Re: [meteorite-list] KATOL (L6) is official Mike, I can host it for a time if you have a big image. However, why not send it to Jeff (sized edited to 800 pixels) for inclusion in the bulletin? He takes care of that pretty quick. Jim On 12/31/2013 6:31 PM, Michael Farmer wrote: Anyone who can host a photo to post to the list, let me know. I have a great photo of my 136 gram oriented Katol (L6) iron to share. Michael Farmer - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6965 - 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6966 - Release Date: 01/01/14 __ 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
Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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
Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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
Re: [meteorite-list] KATOL (L6) is official
Or perhaps the sphericals are vesiculation of fusion crust? I agree with Jim, it would be nice to see some BSE images. 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 Wed, Jan 1, 2014 at 1:28 PM, Carl Agee a...@unm.edu wrote: Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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
Re: [meteorite-list] KATOL (L6) is official
I think it is almost totally nickel iron and the marks are flow lines and small impact pits similar to those you find on Sikhote Alin... Graham On Wed, Jan 1, 2014 at 8:30 PM, Carl Agee a...@unm.edu wrote: Or perhaps the sphericals are vesiculation of fusion crust? I agree with Jim, it would be nice to see some BSE images. 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 Wed, Jan 1, 2014 at 1:28 PM, Carl Agee a...@unm.edu wrote: Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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] Dawn Journal - December 31, 2013
http://dawn.jpl.nasa.gov/mission/journal_12_31_13.asp Dawn Journal Dr. Marc Rayman December 31, 2013 Dear Clairvoydawnts, Now more than halfway through its journey from protoplanet Vesta to dwarf planet Ceres, Dawn is continuing to use its advanced ion propulsion system to reshape its orbit around the sun. Now that the ship is closer to the uncharted shores ahead than the lands it unveiled astern, we will begin looking at the plans for exploring another alien world. In seven logs from now through August, we will discuss how the veteran adventurer will accomplish its exciting mission at Ceres. By the time it arrives early in 2015 at the largest object between Mars and Jupiter, readers will be ready to share not only in the drama of discovery but also in the thrill of an ambitious undertaking far, far from Earth. Mission planners separate this deep-space expedition into phases. Following the launch phase was the 80-day checkout phase. The interplanetary cruise phase is the longest. It began on December 17, 2007, and continued to the Vesta phase, which extended from May 3, 2011, to Sept. 4, 2012. We are back in the interplanetary cruise phase again and will be until the Ceres phase begins in 2015. (Other phases may occur simultaneously with those phases, such as the oh man, this is so cool phase, the we should devise a clever name for this phase phase, and the lunch phase.) Because the tasks at Vesta and Ceres are so complex and diverse, they are further divided into sub-phases. The phases at Ceres will be very similar to those at Vesta, even though the two bodies are entirely different. Dawn thrusting with its ion propulsion system as it approaches Ceres In this log, we will describe the Ceres approach phase. The objectives of approach are to get the explorer into orbit and to attain a preliminary look at the mysterious orb, both to satisfy our eagerness for a glimpse of a new and exotic world and to obtain data that will be helpful in refining details of the subsequent in-depth investigations. The phase will start in January 2015 when Dawn is about 400,000 miles (640,000 kilometers) from Ceres. It will conclude in April when the spacecraft has completed the ion thrusting necessary to maneuver into the first orbit from which it will conduct intensive observations, at an altitude of about 8,400 miles (13,500 kilometers). For a reason to be revealed below, that orbit is known by the catchy cognomen RC3. (Previews for the Vesta approach phase were presented in March 2010 and May 2011, and the accounts of its actual execution are in logs from June, July, and August 2011. Future space historians should note that the differing phase boundaries at Vesta are no more than a matter of semantics. At Vesta, RC3 was described as being part of the approach phase. For Ceres, RC3 is its own distinct phase. The reasons for the difference in terminology are not only unimportant, they aren't even interesting.) The tremendous maneuverability provided by Dawn's uniquely capable ion propulsion system means that the exact dates for events in the approach phase likely will change between now and then. So for those of you in 2015 following a link back to this log to see what the approach plan has been, we offer both the reminder that the estimated dates here might shift by a week or so and a welcome as you visit us here in the past. We look forward to meeting you (or even being you) when we arrive in the future. Most of the approach phase will be devoted to ion thrusting, making the final adjustments to Dawn's orbit around the sun so that Ceres's gravity will gently take hold of the emissary from distant Earth. Next month we will explain more about the unusual nature of the gradual entry into orbit, which will occur on about March 25, 2015. Starting in early February 2015, Dawn will suspend thrusting occasionally to point its camera at Ceres. The first time will be on Feb. 2, when they are 260,000 miles (420,000 kilometers) apart. To the camera's eye, designed principally for mapping from a close orbit and not for long-range observations, Ceres will appear quite small, only about 24 pixels across. But these pictures of a fuzzy little patch will be invaluable for our celestial navigators. Such optical navigation images will show the location of Ceres with respect to background stars, thereby helping to pin down where it and the approaching robot are relative to each other. This provides a powerful enhancement to the navigation, which generally relies on radio signals exchanged between Dawn and Earth. Each of the 10 times Dawn observes Ceres during the approach phase will help navigators refine the probe's course, so they can update the ion thrust profile to pilot the ship smoothly to its intended orbit. Whenever the spacecraft stops to acquire images with the camera, it also will train the visible and infrared mapping spectrometer on Ceres. These early
Re: [meteorite-list] KATOL (L6) is official
Hello All, Krinov discussed the depressions with raised rims observed on Sikhote Alines and concluded that they were not impact marks, but were instead formed when volatile inclusions (relative to Fe-Ni) reached the surface of the iron and boiled out. I have seen a few with remnants of what might be tiny impactors in the center/floor of the pit, but I do think that they are most likely 'bubbles'...not to burst anyones' bubbles. https://picasaweb.google.com/107508108525239417569/Irons?authkey=Gv1sRgCJ6DmIe53MKuGg#5549869672083631618 It would make sense for a chondritic-derived iron to have more volatile inclusions than a typical iron, so the abundant pits on Michael's iron make sense. If what Jeff said is true, Katol would be analogous to other primitive achondrite groups that show depletions in siderophiles and other more volatile minerals with increasing degrees of reduction and recrystallization (e.g. acapulcoites/lodranites, winonaites, etc.)...though Katol would be more comparable to those groups' volatile-enriched counterparts, which have yet to be recognized in our collections. I don't know that one could determine the origin of the poikilitic grains in this rock, but, the meteorite has experienced a significant degree of macroscopic segregation (e.g. there are some irons, some stones that are ~50/50, and some stones that are non-magnetic). If we were talking about typical impact-derived, ragged metal grains, it would be one thing, but that doesn't appear to be the case. Since siderophile enrichment and depletion can happen without complete recrystallization (e.g. Leedy and some other FeS depleted chondrites), that in itself isn't a great argument, but those rocks don't exhibit the same degree of metamorphism or heterogeneity. And they probably don't exhibit the other anomalies noted by Jeff. https://picasaweb.google.com/107508108525239417569/NewFallTS?authkey=Gv1sRgCPjn9avbhp2TrwE#5941037918280051250 Field of view is ~4cm. Regards, Jason www.fallsandfinds.com On Wed, Jan 1, 2014 at 3:25 PM, Graham Ensor graham.en...@gmail.com wrote: I think it is almost totally nickel iron and the marks are flow lines and small impact pits similar to those you find on Sikhote Alin... Graham On Wed, Jan 1, 2014 at 8:30 PM, Carl Agee a...@unm.edu wrote: Or perhaps the sphericals are vesiculation of fusion crust? I agree with Jim, it would be nice to see some BSE images. 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 Wed, Jan 1, 2014 at 1:28 PM, Carl Agee a...@unm.edu wrote: Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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 Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] KATOL (L6) is official
Oh, of course, this the metal-rich piece? * 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 Wed, Jan 1, 2014 at 4:35 PM, Michael Farmer m...@meteoriteguy.com wrote: No chondrules. Sent from my iPhone On Jan 1, 2014, at 4:25 PM, Graham Ensor graham.en...@gmail.com wrote: I think it is almost totally nickel iron and the marks are flow lines and small impact pits similar to those you find on Sikhote Alin... Graham On Wed, Jan 1, 2014 at 8:30 PM, Carl Agee a...@unm.edu wrote: Or perhaps the sphericals are vesiculation of fusion crust? I agree with Jim, it would be nice to see some BSE images. 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 Wed, Jan 1, 2014 at 1:28 PM, Carl Agee a...@unm.edu wrote: Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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 Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] KATOL (L6) is official
Hi Mike and all! I have not seen Katol, except for your sample. Am I assuming correctly that your high iron specimen is what is mentioned in the write-up? If it is, does this mean your specimen is not representative of the others? The way I read it, it is not. What do the other samples look like? Jim __ 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
There are many variations in Katol, some pieces were almost achondrite-like shiny glossy crust, some were more chondritic looking, others were all or partial iron. I know of 5 complete iron pieces. It is not heterogenous. Michael Farmer Sent from my iPhone On Jan 1, 2014, at 5:27 PM, Jim Wooddell jim.woodd...@e.net wrote: Hi Mike and all! I have not seen Katol, except for your sample. Am I assuming correctly that your high iron specimen is what is mentioned in the write-up? If it is, does this mean your specimen is not representative of the others? The way I read it, it is not. What do the other samples look like? Jim __ 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
Yes, this piece is oriented heat shield shaped with countless flow lines and bubbles on the thick backside crust. There are a couple of crystal-rich sections. It is one of my favorite pieces in my collection, the adventure to acquire was a little scary. Laurence Garvie has taken many photos of it, I am sure he has incredible photos I haven't seen. This photo was the only one I got. The piece is still at ASU on loan, it will be on display at the Tucson show. Michael Farmer Sent from my iPhone On Jan 1, 2014, at 5:27 PM, Carl Agee a...@unm.edu wrote: Oh, of course, this the metal-rich piece? * 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 Wed, Jan 1, 2014 at 4:35 PM, Michael Farmer m...@meteoriteguy.com wrote: No chondrules. Sent from my iPhone On Jan 1, 2014, at 4:25 PM, Graham Ensor graham.en...@gmail.com wrote: I think it is almost totally nickel iron and the marks are flow lines and small impact pits similar to those you find on Sikhote Alin... Graham On Wed, Jan 1, 2014 at 8:30 PM, Carl Agee a...@unm.edu wrote: Or perhaps the sphericals are vesiculation of fusion crust? I agree with Jim, it would be nice to see some BSE images. 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 Wed, Jan 1, 2014 at 1:28 PM, Carl Agee a...@unm.edu wrote: Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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 Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] KATOL (L6) is official
No chondrules. Sent from my iPhone On Jan 1, 2014, at 4:25 PM, Graham Ensor graham.en...@gmail.com wrote: I think it is almost totally nickel iron and the marks are flow lines and small impact pits similar to those you find on Sikhote Alin... Graham On Wed, Jan 1, 2014 at 8:30 PM, Carl Agee a...@unm.edu wrote: Or perhaps the sphericals are vesiculation of fusion crust? I agree with Jim, it would be nice to see some BSE images. 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 Wed, Jan 1, 2014 at 1:28 PM, Carl Agee a...@unm.edu wrote: Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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 Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] KATOL (L6) is official
Check out the geochem plots now posted in the MetBull for Katol: http://www.lpi.usra.edu/meteor/drawplot.php?x=24.9y=0.4plot=2label=Katol%20%28L6%29 http://www.lpi.usra.edu/meteor/drawplot.php?x=21.9y=0.5plot=3label=Katol%20%28L6%29 http://www.lpi.usra.edu/meteor/drawplot.php?x=24.9y=21.9plot=1label=Katol%20%28L6%29 http://www.lpi.usra.edu/meteor/drawplot.php?x=4.961;4.867y=3.549;3.596z=0.930;1.026plot=10label=Katol%20%28L6%29 * 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 Wed, Jan 1, 2014 at 5:35 PM, Michael Farmer m...@meteoriteguy.com wrote: There are many variations in Katol, some pieces were almost achondrite-like shiny glossy crust, some were more chondritic looking, others were all or partial iron. I know of 5 complete iron pieces. It is not heterogenous. Michael Farmer Sent from my iPhone On Jan 1, 2014, at 5:27 PM, Jim Wooddell jim.woodd...@e.net wrote: Hi Mike and all! I have not seen Katol, except for your sample. Am I assuming correctly that your high iron specimen is what is mentioned in the write-up? If it is, does this mean your specimen is not representative of the others? The way I read it, it is not. What do the other samples look like? Jim __ 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
Hi Mike and List, Mike, and the behalf of countless others, I hope we hear that story one day. I imagine it must have been pretty bad for you to say it was a little scary. There are a predominance of stony lithologies, but Mike's iron is obviously not an L6 chondrite. So what do we call a mass like Mike's superb iron shield? Do we refer to his specimen as Katol (L6) or do we refer to it as something else? Does Katol have some similarity with Almahata Sitta, in the sense that stones with different lithologies (and classifications) shared the same strewnfield? So, a majority of hand specimens show a curious lithology that is granular, shocked, and originating from the L-chondrite group. Has anyone tried to plot the affinities from the specimens like Mike's that don't match the majority lithology? I'd be curious if they also fit into the L-chondrite group, or, if they were xenoliths hitching a ride in the Katol rubble-pile. Good stuff. It's about time that Katol gets some serious attention. :) Best regards, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone - On 1/1/14, Michael Farmer m...@meteoriteguy.com wrote: Yes, this piece is oriented heat shield shaped with countless flow lines and bubbles on the thick backside crust. There are a couple of crystal-rich sections. It is one of my favorite pieces in my collection, the adventure to acquire was a little scary. Laurence Garvie has taken many photos of it, I am sure he has incredible photos I haven't seen. This photo was the only one I got. The piece is still at ASU on loan, it will be on display at the Tucson show. Michael Farmer Sent from my iPhone On Jan 1, 2014, at 5:27 PM, Carl Agee a...@unm.edu wrote: Oh, of course, this the metal-rich piece? * 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 Wed, Jan 1, 2014 at 4:35 PM, Michael Farmer m...@meteoriteguy.com wrote: No chondrules. Sent from my iPhone On Jan 1, 2014, at 4:25 PM, Graham Ensor graham.en...@gmail.com wrote: I think it is almost totally nickel iron and the marks are flow lines and small impact pits similar to those you find on Sikhote Alin... Graham On Wed, Jan 1, 2014 at 8:30 PM, Carl Agee a...@unm.edu wrote: Or perhaps the sphericals are vesiculation of fusion crust? I agree with Jim, it would be nice to see some BSE images. 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 Wed, Jan 1, 2014 at 1:28 PM, Carl Agee a...@unm.edu wrote: Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim Wooddell wrote: -- 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
Re: [meteorite-list] KATOL (L6) is official
Hello All, IMHO Katol was not a 'rubble' pile and the few 'irons' were in fact just rather large nickel-iron impactor pockets that broke away from the Katol mass as it broke apart during its fiery entry into Earth's atmosphere... ;-) Best Regards, Greg Greg Hupé The Hupé Collection gmh...@centurylink.net www.NaturesVault.net (Online Catalog Reference Site) www.LunarRock.com (Online Planetary Meteorite Site) NaturesVault (Facebook, Pinterest eBay) http://www.facebook.com/NaturesVault http://pinterest.com/NaturesVault IMCA 3163 Click here for my current eBay auctions: http://search.ebay.com/_W0QQsassZnaturesvault -Original Message- From: Galactic Stone Ironworks Sent: Wednesday, January 01, 2014 9:06 PM To: Michael Farmer Cc: meteoritelist meteoritelist ; Jim Wooddell Subject: Re: [meteorite-list] KATOL (L6) is official Hi Mike and List, Mike, and the behalf of countless others, I hope we hear that story one day. I imagine it must have been pretty bad for you to say it was a little scary. There are a predominance of stony lithologies, but Mike's iron is obviously not an L6 chondrite. So what do we call a mass like Mike's superb iron shield? Do we refer to his specimen as Katol (L6) or do we refer to it as something else? Does Katol have some similarity with Almahata Sitta, in the sense that stones with different lithologies (and classifications) shared the same strewnfield? So, a majority of hand specimens show a curious lithology that is granular, shocked, and originating from the L-chondrite group. Has anyone tried to plot the affinities from the specimens like Mike's that don't match the majority lithology? I'd be curious if they also fit into the L-chondrite group, or, if they were xenoliths hitching a ride in the Katol rubble-pile. Good stuff. It's about time that Katol gets some serious attention. :) Best regards, MikeG -- - Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone - On 1/1/14, Michael Farmer m...@meteoriteguy.com wrote: Yes, this piece is oriented heat shield shaped with countless flow lines and bubbles on the thick backside crust. There are a couple of crystal-rich sections. It is one of my favorite pieces in my collection, the adventure to acquire was a little scary. Laurence Garvie has taken many photos of it, I am sure he has incredible photos I haven't seen. This photo was the only one I got. The piece is still at ASU on loan, it will be on display at the Tucson show. Michael Farmer Sent from my iPhone On Jan 1, 2014, at 5:27 PM, Carl Agee a...@unm.edu wrote: Oh, of course, this the metal-rich piece? * 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 Wed, Jan 1, 2014 at 4:35 PM, Michael Farmer m...@meteoriteguy.com wrote: No chondrules. Sent from my iPhone On Jan 1, 2014, at 4:25 PM, Graham Ensor graham.en...@gmail.com wrote: I think it is almost totally nickel iron and the marks are flow lines and small impact pits similar to those you find on Sikhote Alin... Graham On Wed, Jan 1, 2014 at 8:30 PM, Carl Agee a...@unm.edu wrote: Or perhaps the sphericals are vesiculation of fusion crust? I agree with Jim, it would be nice to see some BSE images. 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 Wed, Jan 1, 2014 at 1:28 PM, Carl Agee a...@unm.edu wrote: Beautiful oriented and flow lines! I assume all the circular and spherical shapes are chondrules peeking through the fusion crust? Thanks for sharing Mike! 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 Wed, Jan 1, 2014 at 11:44 AM, Jim Wooddell jim.woodd...@suddenlink.net wrote: Thanks Jeff! Would love to see a polished window image as well as some BSE images now! Maybe Laurence or whoever has them can share! If this thing is going to have a paper published we may have to wait! Jim On 1/1/2014 11:35 AM, Jeff Grossman wrote: Mike's photo in posted in the database now. Jeff On 1/1/2014 1:19 PM, Jim
[meteorite-list] Month of January 2014 Website Updates now up!
Hi List and Happy New Year 2014. I apologize I have been a bit distant over the months as I have been very busy with some personal matters. Later this month I will be making a major announcement (I hope). In the mean time I have finally updated my Website after neglecting it for quite a few months. * The Black Hole Mystery Video of the Month A change of pace here that all of you have to check out, especially those UFO buffs. Its a short news compilation of some interesting and mysterious UFO's caught on video from around the world. http://www.ctreasurescwonders.com/secret_video.html * Also the Flash from the Past Photo of the Month is up. This showing the newest crater on our Moon that was hit by a meteoroid on March 17, 2013 http://www.ctreasurescwonders.com/astro_met_news_back-up.html * The Night Sky this Month for January 2014 is up as well! http://www.ctreasurescwonders.com/menu_1.html * Enjoy! Sincerely Don Merchant Founder-Cosmic Treasures Celestial Wonders www.ctreasurescwonders.com IMCA #0960 __ 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] Tucson Meteorite Auction - 88 Lots
Hi All, Now have 88 lots, including many rare types and a 47+ LB Canyon Diablo. See here: http://michaelbloodmeteorites.com/AuctionTucson2014.html If you have any Lots to add, you should get them in right away. Also, any absentee bids should be submitted now. Enjoy the photos, Michael __ 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] Katol chondrules
I suspected there would be some discussion on the L6 class for Katol. I have posted some BSE images of chondrules from one of our sections on my Facebook page. Laurence Garvie CMS ASU __ 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: Unclassified NWA Contributed by: Gourgues Denis 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] Katol chondrules
I expected there would be some discussion on the L6 class for Katol. I have posted some BSE images of chondrules from one of our sections on my Facebook page. Laurence Garvie CMS ASU __ 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
