Re: [meteorite-list] metachondrite
I understand a metachondrite to be a chondrite that has undergone metamorphism resulting in recrystalization. The composition is much the same as in the original chondrite. There are different affinities, such as 'H' 'L' or 'LL'. I think there are others including E's and 'C' chondrites. I think they are a very interesting group of meteorites. Greg S. Sent from my iPhone On Oct 20, 2010, at 8:36 PM, Steve Dunklee steve.dunk...@yahoo.com wrote: What is a metachondrite? Cheers Steve Dunklee __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Metachondrite(s)
Good morning Steve, Greg and List, Greg S. wrote: I understand a metachondrite to be a chondrite that has undergone metamorphism resulting in recrystalization. The composition is much the same as in the original chondrite. There are different affinities, such as 'H' 'L' or 'LL'. I think there are others including E's and 'C' chondrites. That's right. One further, important aspect is that they are all virtually without (relic) chondrules, devoid of chondrules with a few minor exceptions. See here: http://www4.nau.edu/meteorite/Meteorite/Metachondrites.html#En Best morning wishes, Bernd __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Metachondrite(s)
Thank you Bernd, Yes a metachondrite is a meta(morphic) chondrite, nothing to do with lithologies. A good example of a CR Meta-chondrite is of course Tafassasset. Goodnight. Anne M. Black _www.IMPACTIKA.com_ (http://www.IMPACTIKA.com) _impact...@aol.com_ (mailto:impact...@aol.com) President of IMCA _www.IMCA.cc_ (http://www.IMCA.cc) In a message dated 10/21/2010 12:36:46 AM Mountain Daylight Time, bernd.pa...@paulinet.de writes: Good morning Steve, Greg and List, Greg S. wrote: I understand a metachondrite to be a chondrite that has undergone metamorphism resulting in recrystalization. The composition is much the same as in the original chondrite. There are different affinities, such as 'H' 'L' or 'LL'. I think there are others including E's and 'C' chondrites. That's right. One further, important aspect is that they are all virtually without (relic) chondrules, devoid of chondrules with a few minor exceptions. See here: http://www4.nau.edu/meteorite/Meteorite/Metachondrites.html#En Best morning wishes, Bernd Anne M. Black http://www.impactika.com/ impact...@aol.com Vice-President, I.M.C.A. Inc. http://www.imca.cc/ __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Unconscious Ideomotor Response Test
Thank you for the video links (that totally disprove dowsing works). You can clearly see the right hand 'twitching/bending' almost intentionally as she reaches over the iron!! The rest is just Momentum for sure. I don't think ANYBODY denies bent rods will cross over objects what is at issue here is do they do it in direct response to the object or in response to the human stimulus of seeing or moving over the object (because they want it too). I guarantee you wouldn't be able to find 10 buried iron meteorites hidden in a ploughed field, (i'll bet half my meteorite collection on it). Mark -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of JoshuaTreeMuseum Sent: 21 October 2010 00:32 To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Unconscious Ideomotor Response Test Here are two examples of the unconscious ideomotor response in action. The female subject had never heard of dowsing, yet by pure coincidence her ideomotor responded the same as mine. http://s185.photobucket.com/albums/x177/cyphor79/?action=viewcurrent=Gi beonDowsing.mp4 http://s185.photobucket.com/albums/x177/cyphor79/?action=viewcurrent=x1 02010015.mp4 I know very well that many scientists consider dowsing as they do astrology, as a type of ancient superstition. According to my conviction this is, however, unjustified. The dowsing rod is a simple instrument which shows the reaction of the human nervous system to certain factors which are unknown to us at this time. Albert Einstein --- Phil Whitmer -- __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list CONFIDENTIALITY NOTICE: This email and any files transmitted with it are confidential. If you are not the intended recipient, please notify us. Email i...@ssl.gb.com. You should not copy or use this email or attachment(s) for any purpose nor disclose their contents to any other person. GENERAL STATEMENT: Southern Scientific Ltd's computer systems may be monitored and communications carried on them recorded, to secure the effective operation of the system and for other lawful purposes. Registered address Rectory Farm Rd, Sompting, Lancing, W Sussex BN15 0DP. Company No 1800317 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Astronomers found oldest galaxy so far? 13 billion years old!
http://news.yahoo.com/s/ap/20101020/ap_on_sc/us_sci_oldest_galaxy Greg Catterton www.wanderingstarmeteorites.com IMCA member 4682 On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites On Facebook: http://www.facebook.com/WanderingStarMeteorites --- On Wed, 10/20/10, steve arnold stevenarnold60...@yahoo.com wrote: From: steve arnold stevenarnold60...@yahoo.com Subject: [meteorite-list] half off on met sale (AD) To: meteorite-list@meteoritecentral.com Date: Wednesday, October 20, 2010, 7:15 PM Hi list.I really want to move what I have forsale so thru sunday,half off everything with free shipping. Steve R.Arnold, Chicago! http://Chicagometeorites.com/ ebay:Illinoismeteorites __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: 2nd appendix to original Catalog of meteorites (1923) British museum copy
Hi all, I now have this 2nd appendix to the original 1st edition of the catalogue of meteorites on ebay. Its a copy from the British Museum Natural History mineral department with their stamp on. (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=250714688777) I also have a full set of the Nestle meteorite cards for sale (http://cgi.ebay.com/Full-set-20-Nestle-cereal-meteorite-cards-/250709954563?pt=LH_DefaultDomain_0hash=item3a5f7a5003) Please take a look if interested. Cheers Martin __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: Special: Absolutely Ama zing! The Trompe-l'œil-Eucrite NWA 6347prov . Fully recrystallized melted.
Good Morning Collectors! For this Special it is absolutely necessary to show the pictures first! http://www.chladnis-heirs.com/special-nwa6347.html Hands up! To whom of you we could have sold it as Lunar? Awesome, isn't it? But what do we have here? An eucrite, which was completely melted, recrystallized afterwards and was in the end brecciated into a fine jigsaw puzzle. Extremely fine grained, no visible metal, wonderful shock veins. Very fresh with a perfectly contrasting black fusion crust. A stunner, an eyecatcher - no matter how full your showcase is already. A stone, which makes us love our profession. Quick the data: NWA 6347 provisional Sahara Find 2010 Tkw 148g Recrystallized and melted eucrite breccia Prices 40-45$/g. First come, first serve. Promise us, to bring your slice not in the even far proximity of an NWA 482-label ;-) All the Best! Stefan Martin Chladni's Heirs Munich - Berlin Fine Meteorites for Science Collectors http://www.chladnis-heirs.com __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] metachondrite
This is a term coined by Ted Bunch and Tony Irving, but to my knowledge there is no peer-reviewed publication defining the term. You'll find the definition in an AGU and a MetSoc abstract: http://www.lpi.usra.edu/meetings/metsoc2005/pdf/5218.pdf http://adsabs.harvard.edu/abs/2006AGUFM.P51E1246B The term is not in widespread use and has not been used in the Meteoritical Bulletin. Time will tell if it catches on. Jeff On 10/20/2010 11:36 PM, Steve Dunklee wrote: What is a metachondrite? Cheers Steve Dunklee __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Unconscious Ideomotor Response Test
Thank you for the video links (that totally disprove dowsing works). You can clearly see the right hand 'twitching/bending' almost intentionally as she reaches over the iron!! The rest is just Momentum for sure. Mark: That's the point of the experiment. It's to prove the existence of the ideomotor response. I've read the literature, I don't believe in dowsing, just the ideomoter reaction to it. When farmers and plumbers find underground pipes, they obviously already know where they are. Phil Whitmer - I don't think ANYBODY denies bent rods will cross over objects what is at issue here is do they do it in direct response to the object or in response to the human stimulus of seeing or moving over the object (because they want it too). I guarantee you wouldn't be able to find 10 buried iron meteorites hidden in a ploughed field, (i'll bet half my meteorite collection on it). Mark __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] metachondrite
Hi, Time will tell if it catches on. I suppose it will, because to list these stones as Achondrite-ungr or Achondrite-prim. is very unspecific (and as far as I can rate it as a sheer layman, also sometimes somewhat misleading), while the metachondrite concept is very coherent. Of course it can take some time. (If you remember e.g. that the Bulletin still has with the lunaites only the very coarse discrimination in LUN-A and LUN-B, as we would still be in the time, where there were only the 2 DaGs and NWA 032.) Btw. these new results and that interesting topic about the additional 7ers/chondritic PACs/Metachondrites came on the table or was incited, as far as I can see, only and solely by means of newly found stones from the hot deserts. Hence another perfect example, why all, also in the MetSoc, should take care for keeping the deserts open. It helps a lot! Best! Martin -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Jeff Grossman Gesendet: Donnerstag, 21. Oktober 2010 15:02 An: meteorite-list@meteoritecentral.com Betreff: Re: [meteorite-list] metachondrite This is a term coined by Ted Bunch and Tony Irving, but to my knowledge there is no peer-reviewed publication defining the term. You'll find the definition in an AGU and a MetSoc abstract: http://www.lpi.usra.edu/meetings/metsoc2005/pdf/5218.pdf http://adsabs.harvard.edu/abs/2006AGUFM.P51E1246B The term is not in widespread use and has not been used in the Meteoritical Bulletin. Time will tell if it catches on. Jeff __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] metachondrite
Even if the term metachondrite comes into use, it will not be the name of a meteorite group. It is semantically similar to the terms chondrite and achondrite, which are descriptive of the overall texture of a rock. Each of these terms encompasses objects from many parent bodies. And please don't think that the term primitive achondrite is incoherent. It is a very well-defined term, with an abundant scientific literature behind it. In fact, Irving et al. (metsoc abstract) suggest that metachondrite is essentially a synonym for PAC! Nor is the term ungrouped incoherent. This is a very precise term, meaning that the meteorite does not belong to an accepted group. If one adopts the term metachondrite, expect there to be metachondrite-ung classifications appearing. Jeff On 10/21/2010 9:57 AM, Martin Altmann wrote: Hi, Time will tell if it catches on. I suppose it will, because to list these stones as Achondrite-ungr or Achondrite-prim. is very unspecific (and as far as I can rate it as a sheer layman, also sometimes somewhat misleading), while the metachondrite concept is very coherent. Of course it can take some time. (If you remember e.g. that the Bulletin still has with the lunaites only the very coarse discrimination in LUN-A and LUN-B, as we would still be in the time, where there were only the 2 DaGs and NWA 032.) Btw. these new results and that interesting topic about the additional 7ers/chondritic PACs/Metachondrites came on the table or was incited, as far as I can see, only and solely by means of newly found stones from the hot deserts. Hence another perfect example, why all, also in the MetSoc, should take care for keeping the deserts open. It helps a lot! Best! Martin -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Jeff Grossman Gesendet: Donnerstag, 21. Oktober 2010 15:02 An: meteorite-list@meteoritecentral.com Betreff: Re: [meteorite-list] metachondrite This is a term coined by Ted Bunch and Tony Irving, but to my knowledge there is no peer-reviewed publication defining the term. You'll find the definition in an AGU and a MetSoc abstract: http://www.lpi.usra.edu/meetings/metsoc2005/pdf/5218.pdf http://adsabs.harvard.edu/abs/2006AGUFM.P51E1246B The term is not in widespread use and has not been used in the Meteoritical Bulletin. Time will tell if it catches on. Jeff __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rocks from Space Picture of Day - October 20, 2010
Good go! Chris Spratt Victoria, BC (Via my iPhone) __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] metachondrite
Well, of course it won't, (like the PACs are in principle neither a group...) but chemically and from the isotopes, those 7-PAC-Metas-Howevers are evolved chondrites of the respective chondrite groups. Chondrites with no chondrules anymore. But if I hear achondrite, I'm thinking to HEDs and meteorites derived from differentiated stuff. Hence they are neither ungrouped, we can group them definitely to the Ls, to the Hs, ect. And primitive achondrites, well those 7-Meta-PAC-Howevers - they are the most metamorph, most elquilibrated (former) chondrites, hence quite the opposite of primitive. Traditionally, in my drawer labeled PAC, there are sitting already the LOD/ACAP/WIN-boys inside. And they tussle always with those Ls, Hs, LLs, CVs, which just baked a little longer in their parent bodies, than the 4ers,5ers,6ers. (Uh and horribile dictu, in these LODs, ACAPs, WINs - called PACs, there are sometime chondrules and relict chondrules found!). Quietude into that drawer I could bring, if I put them all inside and would write metachondrite on the label, but always remembering, that each of them is cut from the cloth of his own group. (Or to say it else, they are rather ex-chondrites for me, than a-chondrites :-) Or to say it else again, for me it's more precise, to call the L-meta, H-meta, LL-meta ect... than to lump them all together in the bucket labeled PAC). But Jeff, you're naturally right - that is all only for my private domestic use. And I need simplifications, as the simple mind I am. As told, we are only laymen. We're the delivery boys of the very stones - the more weird, the better - though the papers about, the scientists have to write. Apropos weird - Weir D. gives as always good information about that complex: http://www.meteoritestudies.com/ Best! Martin -Ursprüngliche Nachricht- Von: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] Im Auftrag von Jeff Grossman Gesendet: Donnerstag, 21. Oktober 2010 19:39 An: meteorite-list@meteoritecentral.com Betreff: Re: [meteorite-list] metachondrite Even if the term metachondrite comes into use, it will not be the name of a meteorite group. It is semantically similar to the terms chondrite and achondrite, which are descriptive of the overall texture of a rock. Each of these terms encompasses objects from many parent bodies. And please don't think that the term primitive achondrite is incoherent. It is a very well-defined term, with an abundant scientific literature behind it. In fact, Irving et al. (metsoc abstract) suggest that metachondrite is essentially a synonym for PAC! Nor is the term ungrouped incoherent. This is a very precise term, meaning that the meteorite does not belong to an accepted group. If one adopts the term metachondrite, expect there to be metachondrite-ung classifications appearing. Jeff __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Watch Construction Of NASA's New Mars Rover Live On The Web (Curiosity)
Oct. 21, 2010 Dwayne Brown Headquarters, Washington 202-358-1726 dwayne.c.br...@nasa.gov Guy Webster Jet Propulsion Laboratory, Pasadena, Calif. 818-354-6278 guy.webs...@jpl.nasa.gov RELEASE: 10-264 WATCH CONSTRUCTION OF NASA'S NEW MARS ROVER LIVE ON THE WEB PASADENA, Calif. -- A newly installed webcam is giving the public an opportunity to watch technicians assemble and test the next NASA Mars rover, one of the most technologically challenging interplanetary missions ever designed. NASA's Mars Science Laboratory, also known as the Curiosity rover, is in a clean room at the agency's Jet Propulsion Laboratory in Pasadena, Calif. The webcam, affectionately called Curiosity Cam, provides the video feed, without audio, from a viewing gallery above the clean room floor. The video will be supplemented periodically by live Web chats featuring Curiosity team members answering questions about the rover. Currently, work in the clean room begins at 8 a.m. PDT Monday through Friday. Clean room technicians have been busy adding new avionics and instruments to the rover. Beginning Friday, viewers will see technicians carefully add the rover's suspension system and its six wheels. On Monday, Oct. 25, the rover's 7-foot-long robotic arm will be carefully lifted and attached to the front of the rover. The camera shows a portion of the clean room that is typically active; but the rover, spacecraft components and technicians may move out of view as work shifts to other areas of the room. When activity takes place in other testing facilities around JPL, the clean room may be empty. The camera also may be turned off periodically for maintenance or due to technical issues. Months of assembly and testing remain before the car-sized rover is ready for launch from Cape Canaveral, Fla. The rover and spacecraft components will ship to NASA's Kennedy Space Center in Florida next spring. The launch will occur between Nov. 25 and Dec. 18, 2011. Curiosity will arrive on Mars in August 2012. Curiosity is engineered to drive longer distances over rougher terrain than previous rovers with a science payload 10 times the mass of instruments on NASA's Spirit and Opportunity. The new, large rover will investigate whether the landing region has had environments favorable for supporting microbial life and for preserving evidence about whether life existed on the Red Planet. Continuous live video of rover construction is available at: http://www.ustream.tv/channel/nasajpl and http://www.nasa.gov/mission_pages/msl/building_curiosity.html For information and news about Curiosity, visit: http://www.nasa.gov/msl Social media audiences can learn more about the mission on Twitter @MarsCuriosity or on Facebook at: http://www.facebook.com/MarsCuriosity -end- __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] the end,it has to be this time
Good evening list.I have really been thinking it over this time long and hard,and I have decided that this is the time to leave the meteorite world once and for all.The passion is gone.I cannot collect the way I want to and it is just getting way to expensive.Even tho I am working and most everything else in my world is going good,knock on wood,it is the right time.11 years,many great people,some not so great,and thousands of meteorites.I just have lost that luvin, feeling.I will be able to fall back on my first love,coin collecting.As for my current sale,please feel free to make a reasonable offer and I know I will probably make it a good one for you.I have had many world class pieces and most have found great homes. My other collection has 3 offers that I am probably going to sell to.So all is going and soon there will not even be a trace a meteorite ever existed in this home.I will hang onto some of emails from certain listee's the others I will delete.Its been a blast,but this time it is for real.Good luck to everyone and gos bless you all and this great hobby. Steve R.Arnold, Chicago! http://Chicagometeorites.com/ ebay:Illinoismeteorites __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The Continuing Controversy of the Mars Meteorite
List: I thought this kinda fun to re-visit; it also has some nice pics. The last one looks like a whole lot of fun - but a bit chilly. Greg S. http://www.astrobio.net/exclusive/3653/the-continuing-controversy-of-the-mars-meteorite- The Continuing Controversy of the Mars Meteorite The most illustrious meteorite in history continues to inspire heated debate. Does it carry microbial fossils from Mars or are its strange features just the product of some unique geochemistry? After almost 20 years, dueling papers are still coming out, and the opposing parties are no closer to a resolution. Most scientists agree that the meteorite ALH84001 is the oldest meteorite ever found to have come from Mars. The meteorite is so old that if Martian life existed back then, it probably floated by the rock at some point, says Timothy Swindle of the University of Arizona. But did it leave any record? In 1996, one research group claimed yes, sending shock waves through the scientific community and beyond. President Bill Clinton made a special address on the apparent discovery, and the media widely broadcasted the scientists' images of what appeared to be dead bug remains from the rock. Had we finally met our neighbors? The iconic meteorite became the grist for many imaginations. The TV show The X-files depicted an ALH84001 look-a-like with live bugs in it, and a Dan Brown novel imagined a conspiracy to cover-up extraterrestrial evidence from a space rock. Biopic of a falling star The meteorite made its debut in 1984, when it was picked up by a geologist team riding snowmobiles through the Allan Hills region of Antarctica. It took 10 years for researchers to realize this 4-pound specimen likely came from Mars. The general consensus now is that the original rock formed 4 billion years ago on Mars. It was eventually catapulted into space by an impact and wandered the solar system for millions of years before landing on Earth 13,000 years ago. Over 50 other meteorites have been identified as coming from Mars, but ALH84001 is by far the oldest, with the next in age being just 1.3 billion years old. That alone makes ALH84001 a very important sample, says Allan Treiman of the Lunar and Planetary Institute. It's our only hope to understand what Mars was like at this time period. The first thing that struck researchers examining the meteorite was the presence of 300-micron-wide carbonate globules that make up 1% of the rock. Dave McKay from NASA's Johnson Space Center and his colleagues determined that the carbonate most likely formed in the presence of water. Although evidence for a wet ancient Mars has accumulated in the subsequent years, the claim that ALH84001 once sat in water was pretty revolutionary at the time, says Kathie Thomas-Keprta, also from the Johnson Space Center. Inside the ALH84001 carbonates, McKay spotted odd features that resembled very small worm-like fossils, so he asked Thomas-Keprta to look at them more closely with electron microscopy. A few of the orange-colored carbonate globules found in ALH84001. Credit: NASA I kind of thought he was crazy, she says. I thought I would join the group and straighten them out. In the end, she helped the team characterize the biomorphic features, as well as unusual grains of the mineral magnetite found in the meteorite. In a 1996 Science paper, these two phenomena – along with the chemical distribution in the globules and the detection of large organic molecules – were taken collectively as signatures of biological activity occurring long ago on Mars. The storyline unravels However, skeptics began to pick apart the four lines of evidence presented in the 1996 paper. Groups of geologists and chemists proposed alternative ways that the carbonate globules and the organic molecules could have formed without the need of Martian microbes. The supposed fossil shapes were so small they could only have been the remains of hypothetical nanobacteria. A more plausible explanation, according to other researchers, was that the tiny artifacts are uneven patches in the coating used to prepare the samples for electron microscopy. That left the magnetite grains as the strongest case for a biologic imprint in ALH84001. The focus of the last 10 years has been the magnetite, says Thomas-Keprta. Microbial compasses A chain of magnetite crystals, like a string of pearls,” within meteorite ALH 84001. Arrows indicate the ends of the chain. Credit: NASA Magnetite (Fe3O4) is a common mineral found on black sandy beaches, in iron-rich sediments and even in interplanetary dust. The majority of this magnetite forms in geologic processes, where many elements mix together and iron often gets replaced with iron-like elements such as magnesium and chromium. However, the magnetite grains found in the carbonate globules of ALH84001 have very few of these sorts of substitutions. I had never seen magnetite as chemically pure as this
Re: [meteorite-list] the end,it has to be this time
Evening All, I've come out of my own retirement to make a comment here. I wish you the best of luck Steve. After reading your post, I reflected back on all that has transpired over the years and I have to admit I laughed out loud. You brought something to this List that no one else could have. I can't define it or put a label on it, but you've made it interesting, that's for sure. Thanks for the laugh. Best Regards, John Gwilliam At 04:47 PM 10/21/2010, steve arnold wrote: Good evening list.I have really been thinking it over this time long and hard,and I have decided that this is the time to leave the meteorite world once and for all.The passion is gone.I cannot collect the way I want to and it is just getting way to expensive.Even tho I am working and most everything else in my world is going good,knock on wood,it is the right time.11 years,many great people,some not so great,and thousands of meteorites.I just have lost that luvin, feeling.I will be able to fall back on my first love,coin collecting.As for my current sale,please feel free to make a reasonable offer and I know I will probably make it a good one for you.I have had many world class pieces and most have found great homes. My other collection has 3 offers that I am probably going to sell to.So all is going and soon there will not even be a trace a meteorite ever existed in this home.I will hang onto some of emails from certain listee's the others I will delete.Its been a blast,but this time it is for real.Good luck to everyone and gos bless you all and this great hobby. Steve R.Arnold, Chicago! http://Chicagometeorites.com/ ebay:Illinoismeteorites __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Regards, John Gwilliam Some people are born on third base and go through life thinking they hit a triple. [Bob Dylan] __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the end,it has to be this time
Again steve? C'mon why do you do this every other month? You will be back, we all know you will. This is getting old man. Last time you did this you got rid of most of your stuff then begged for your freebies back, just hold on to your meteorites this time, I would hate to see that happen again. Ill see you out on the next local fall. Best, Joe K Sent from my Verizon Wireless BlackBerry -Original Message- From: steve arnold stevenarnold60...@yahoo.com Sender: meteorite-list-boun...@meteoritecentral.com Date: Thu, 21 Oct 2010 16:47:41 To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] the end,it has to be this time Good evening list.I have really been thinking it over this time long and hard,and I have decided that this is the time to leave the meteorite world once and for all.The passion is gone.I cannot collect the way I want to and it is just getting way to expensive.Even tho I am working and most everything else in my world is going good,knock on wood,it is the right time.11 years,many great people,some not so great,and thousands of meteorites.I just have lost that luvin, feeling.I will be able to fall back on my first love,coin collecting.As for my current sale,please feel free to make a reasonable offer and I know I will probably make it a good one for you.I have had many world class pieces and most have found great homes. My other collection has 3 offers that I am probably going to sell to.So all is going and soon there will not even be a trace a meteorite ever existed in this home.I will hang onto some of emails from certain listee's the others I will delete.Its been a blast,but this time it is for real.Good luck to everyone and gos bless you all and this great hobby. Steve R.Arnold, Chicago! http://Chicagometeorites.com/ ebay:Illinoismeteorites __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: Back From The Field...SALE ENDS SOON!
Hello, I have some nice stuff on sale and more goodies from the field soon. My current sale ends soon... GO TO: http://stores.ebay.com/voyage-botanica-natural-historyThanksMichael Cottingham __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: Correct Link
http://stores.ebay.com/voyage-botanica-natural-history __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD- Sikhote-Alin and Tamdakht for sale/trade
Hi everyone, I have nice big 435g Sikhote Alin and a fully crusted 32.5g Tamdakht meteorite for sale or trade. For trade I am looking for a nice Allende, Camel Donga, Millbilllie or Henbury meteorites. If you are interested send me an e-mail. Thanks! -- Felipe __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the end,it has to be this time
Hello Steve, You know, I've been a great defender of you in the past. I've come to your defense on more than one occasion, when members of the List have been pretty unkind to you. Having said that, it seems to me that your leaving the meteorite world declarations have gotten to be comical. Really, either leave or don't leave. Geez, enough already! If you're REALLY serious this time, I wish you the best. Greg Lindh Date: Thu, 21 Oct 2010 16:47:41 -0700 From: stevenarnold60...@yahoo.com To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] the end,it has to be this time Good evening list.I have really been thinking it over this time long and hard,and I have decided that this is the time to leave the meteorite world once and for all.The passion is gone.I cannot collect the way I want to and it is just getting way to expensive.Even tho I am working and most everything else in my world is going good,knock on wood,it is the right time.11 years,many great people,some not so great,and thousands of meteorites.I just have lost that luvin, feeling.I will be able to fall back on my first love,coin collecting.As for my current sale,please feel free to make a reasonable offer and I know I will probably make it a good one for you.I have had many world class pieces and most have found great homes. My other collection has 3 offers that I am probably going to sell to.So all is going and soon there will not even be a trace a meteorite ever existed in this home.I will hang onto some of emails from certain listee's the others I will delete.Its been a blast,but this time it is for real.Good luck to everyone and gos bless you all and this great hobby. Steve R.Arnold, Chicago! http://Chicagometeorites.com/ ebay:Illinoismeteorites __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the end,it has to be this time
Be looking for you down the road Steve. -- From: steve arnold stevenarnold60...@yahoo.com Sent: Thursday, October 21, 2010 7:47 PM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] the end,it has to be this time Good evening list.I have really been thinking it over this time long and hard,and I have decided that this is the time to leave the meteorite world once and for all.The passion is gone.I cannot collect the way I want to and it is just getting way to expensive.Even tho I am working and most everything else in my world is going good,knock on wood,it is the right time.11 years,many great people,some not so great,and thousands of meteorites.I just have lost that luvin, feeling.I will be able to fall back on my first love,coin collecting.As for my current sale,please feel free to make a reasonable offer and I know I will probably make it a good one for you.I have had many world class pieces and most have found great homes. My other collection has 3 offers that I am probably going to sell to.So all is going and soon there will not even be a trace a meteorite ever existed in this home.I will hang onto some of emails from certain listee's the others I will delete.Its been a blast,but this time it is for real.Good luck to everyone and gos bless you all and this great hobby. Steve R.Arnold, Chicago! http://Chicagometeorites.com/ ebay:Illinoismeteorites __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] the end,it has to be this time
Gos bless you, too, Steve For what is it now? The 4th or 5th time for certain? All kidding aside, best to you, Michael On 10/21/10 4:47 PM, Met. Steve Arnold, Chicago!!! stevenarnold60...@yahoo.com wrote: Good evening list.I have really been thinking it over this time long and hard,and I have decided that this is the time to leave the meteorite world once and for all.The passion is gone.I cannot collect the way I want to and it is just getting way to expensive.Even tho I am working and most everything else in my world is going good,knock on wood,it is the right time.11 years,many great people,some not so great,and thousands of meteorites.I just have lost that luvin, feeling.I will be able to fall back on my first love,coin collecting.As for my current sale,please feel free to make a reasonable offer and I know I will probably make it a good one for you.I have had many world class pieces and most have found great homes. My other collection has 3 offers that I am probably going to sell to.So all is going and soon there will not even be a trace a meteorite ever existed in this home.I will hang onto some of emails from certain listee's the others I will delete.Its been a blast,but this time it is for real.Good luck to everyone and gos bless you all and this great hobby. Steve R.Arnold, Chicago! http://Chicagometeorites.com/ ebay:Illinoismeteorites __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rare Earth Magnets Might Get Rarer!
Heard that on the news while driving from one desert location to another... Just the one NV find so far in the last week. Pulled over to check emails before I lose cell service. Glad I have my stock in magnets, now if they can just sniff out another meteorite while I am roaming around the desert! :-) Best Regards, Greg Hupe On Oct 20, 2010, at 8:23 PM, Meteorites USA e...@meteoritesusa.com wrote: So much for your magnet on a stick meteorite hunting. Neodymium might just get more expensive. Kind of a bum deal for all things that depend on rare earth minerals: Someone, quick, start a rare earth mineral mining company! http://www.livescience.com/technology/etc/101019-china-halts-shipments-tech-crucial-minerals.html Enjoy... Eric On Oct 20, 2010, at 8:23 PM, Meteorites USA e...@meteoritesusa.com wrote: So much for your magnet on a stick meteorite hunting. Neodymium might just get more expensive. Kind of a bum deal for all things that depend on rare earth minerals: Someone, quick, start a rare earth mineral mining company! http://www.livescience.com/technology/etc/101019-china-halts-shipments-tech-crucial-minerals.html Enjoy... Eric __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Canadians steal crystaline meteorite aliens
http://www.cbc.ca/canada/north/story/2010/10/21/yukon-space-rock-sabo.html?ref=rss#socialcomments __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
