[meteorite-list] Prospects for the Future
I'm sorry for my bad English. Let's talk about the future prospects of meteoritics. And even more precisely what the future holds themselves meteorites found until they found, and which will fall to Earth in the future. Technology marched forward with astonishing speed. Heard somewhere that if the mechanic has evolved as cybernetics, our cars would long ago have moved at light speed. What technologies can help us find the meteorites? We omit here a visual way to search the surface. Of all the species have only subsurface sounding metal detectors, GPR, and magnetometers. The principle of operation which is based on a,, comparing,, and properties of soil without metal inclusions, and with them. The actual process is quite time-consuming search and does not guarantee positive results in the near future. What technology can continue to help us? There is still a little dream. Let's start with the chondrites. Everyone knows about the iron-nickel inclusions contained in them. Thanks to them, rare finds have been made with metal detectors. Requires device that allows, to see, on the monitor concentrations of nickel or iron-nickel alloy. That is, He must not only scan the ground, but also to do its analysis. And the higher the sensitivity, the faster will be found all chondrites. By the way, iron and iron-stone, he finds much earlier. But what about the achondrites? Here is more complicated. Pure metallic inclusions almost none of them are not, and if there is only a very small fraction. How can I allocate achondrites from the soil surrounding them, and how they differ from our ordinary stones? There are two significant differences. Both are very time-consuming to identify and require painstaking laboratory research. First - unlike in a different mineral content. That is, many minerals contained in them are from, and our, and stones. But the percentage of them still different. Maybe the scanner mentioned above, and further refined, can scan the ground and compare it with the mineral balance loads the templates of all meteorites found. While these technologies are not invented. Or I do not have the data. The second difference - age. All found a rather ancient meteorites, some 4.5 billion years age. From the most, ,,young,, planetary meteorites are formed and ejected from the surface of the powerful impact events. Their age from 200 million years. Of course we have our terrestrial rocks formed a billion years ago or more. But it is also rare. Most terrestrial species under an order of magnitude because of the intense metamorphism occurring on our planet so far. What technology will be able to scan the ground and give a color map age stones contained in it? Again, no data. Maybe it will go as an option to the above instrument. Come on. The day will come when the Earth will be found the last meteorite. Their number is not yet known, but it is strictly limited. And they will be found, not because of their scientific value, but because of the commercial. What is really the soul of the curve. After all, say the scientific value of meteorites, for example, in the 30s of last century was no less valuable than it is today. And who was looking specifically? Units. Only the commercial value of the wave lifted miners of all kinds. And it will help in the search for the future. But things must come to us last fall and a meteorite. And it will not be billions of years, but much earlier. I think the future of our planet's defense system will not let us even a speck of dust. That's when the price rises, even a ordinary chondrite to the skies. Indeed, new discoveries will not be. Well, no, of course meteorites are found on other planets, but their value will never be close to the meteorites found on Earth. I see in them not only scientific value and a means to satisfy the whim of the collector. It's not a bad legacy we can leave to our descendants. At the first opportunity I am going to find them. And if I could in the future to buy meteorites found by others, be sure to buy it. Who is my assumptions seem weird or stupid. Who they are helpful. Maybe I'm in something right, maybe not. Talk to your version as you can see the future, let's discuss. -- Yours faithfully. Al Leone. __ 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] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: NWA 5884 TS http://www.tucsonmeteorites.com/mpod.asp __ 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-auctions ending
Ending today: Bereba, Patrimonio, nice Etter with no reserve. Just added museum Odessas with numbers and labels! http://stores.ebay.com/Mile-High-Meteorites Matt Matt Morgan Mile High Meteorites P.O. Box 151293 Lakewood, Colorado 80215 USA http://www.mhmeteorites.com Like Us on Facebook: www.facebook.com/MileHighMeteorites __ 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] Planet Mercury Even Weirder Than We Thought
Planet Mercury Even Weirder Than We Thought Wired Science, by Adam Mann, March 21, 2012 | http://www.wired.com/wiredscience/2012/03/dynamic-mercury-geology/?pid=3477pageid=101963 http://www.wired.com/wiredscience/2012/03/dynamic-mercury-geology/?pid=3480pageid=101963 Mercury has been 'dynamic world' by Paul Rincon BBC News, March 21, 2012 http://www.bbc.co.uk/news/science-environment-17248776 Mercury's Surprising Core and Landscape Curiosities ScienceDaily, March 21, 2012 http://www.sciencedaily.com/releases/2012/03/120321105505.htm The paper is: Zuber, M. T., D. E. Smith, and many others, 2012, Topography of the Northern Hemisphere of Mercury from MESSENGER Laser Altimetry. Science Express. Published Online March 21, 2012 http://www.sciencemag.org/content/early/2012/03/20/science.1218805.abstract http://www.sciencemag.org/content/early/2012/03/20/science.1218805/suppl/DC1 MESSENGER Planetary Conference Multimedia Page http://messenger.jhuapl.edu/news_room/presscon11_multi.html Best wishes, Paul H. __ 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] Auction Kings meteorite - $2000 Sikhote Alin
That show was the second one like in the last little while that I have seen where a meteorite came up for auction. The other show was one where they had experts there and they looked at the items people brought and gave an evaluation. Then based on the evaluation they would decide if it went to auction. If i remember correctly, the meteorite was a stony in that one. Looked to weigh several pounds. I can't remember the selling price of it though. I told my wife at the time that I thought that was the wrong venue to sell something like a large stony meteorite. On Mar 23, 2012, at 8:38 AM, Michael Gilmer wrote: Hi Folks, So last night I was going through the channel guide on cable TV and I saw that a show called Auction Kings was going to have a segment featuring a meteorite. I had never watched this show before, but I was very curious to see what type of meteorite would be shown. Apparently, the show is about a local auction house somewhere (not sure where). People bring in unusual items and the auction house sells them at open auction while the cameras follow the action. The meteorite segment came and here is where the fun begins This guy walks in carrying a Pelican-style case about the size of a camera case. He opens it and brings out a Sikhote Alin shrapnel about the size of a grapefruit. The meteorite had a nice patina, but the shape was not very interesting or sculpted. In other words, it was what most of us would call a lump, but it was obvious from the appearance that it was a genuine Sikhote. First, the auction house guy was impressed because the meteorite had a certificate of authenticity. I thought this was laughable for obvious reasons and a man who runs an auction house should know that 99% of COA's are not worth the paper they are printed on. I can go outside, grab a rock from my driveway, and print up an official-looking COA for it. Next, the owner proceeds to demonstrate that the meteorite is magnetic because a magnet will stick to it and that is one of the key tests to determine if a meteorite is genuine. I'll skip comment on this misconception and use of improper terminology because the real kicker was still to come. So the owner tells the auction house that he is hoping to sell the meteorite to help pay for a vacation to Paris and he wants $1000 for it. Ok, at no point in the show was the weight of the specimen ever mentioned. So without knowing the weight, it is difficult to assign to solid value to the piece. But judging by what I saw (apparent size and shape), I'd guess the piece would sell on the meteorite market or eBay for about $250-$300. The owner's desired price of $1000 seemed unrealistic to me, but this is television and a bunch of people who don't know jack about meteorites, so anything is possible. The auction part comes, and they have a nice turn out with maybe two or three dozen potential bidders in attendance. The meteorite ignites a bidding war and the final price for the piece was.(*drumroll please*).. $2000! And the buyer was thrilled because he thought he got a good deal. Of course, once he gets home and does some Googling to learn more about his new meteorite, he might change his mind about the deal he got. He could have went on eBay and bought a half-dozen Sikhote shrapnels of that size for $2000. So the moral of this story is - if you have a local auction house near you, go down there with a meteorite and you might be pleasantly surprised how much money it will fetch. I'm opening up the yellow pages today and/or getting on the internet and see what kind of auction houses we have here in the Tampa area. I'll be more than happy to offer them all the $200 stones and irons they want, as long as they fetch $2000 each. Heck, even after the auction house takes it's percentage, that is still a great deal for the seller. And the best part is, once the buyer gets home and finds out he/she got burned on the price, they cannot get mad at the seller, because they are the ones who bid the item up. Dealers - check your local auction houses. Best regards, MikeG -- --- Galactic Stone Ironworks - MikeG Web: http://www.galactic-stone.com Facebook: http://www.facebook.com/galacticstone Twitter: http://twitter.com/GalacticStone RSS: http://www.galactic-stone.com/rss/126516 --- __ 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] Think About Selling my Entire 50mm SphereCollection
That is an amazing collection. Never thought about that, it's almost like having a little planet collection. * Stuart McDaniel Lawndale, NC Secr., Cleve. Co. Astronomical Society IMCA #9052 Sirius Meteorites http://spacerocks.weebly.com * -Original Message- From: David Deyarmin Sent: Sunday, March 25, 2012 12:54 AM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Think About Selling my Entire 50mm SphereCollection Some of you may remember me from a couple years ago. I have a really odd collection that is only comprised of 50mm Spheres. Back when I started the collection I was really excited about it and I was able to get 19 different meteorite and meteorite related spheres but then it just kind of stalled. It became apparent that it would be very difficult and expensive to expand my collection so I kind of lost interest. Every once in a while I try to find some new material to make another sphere but I'm just not as enthusiastic about the collection as I once was. So I am thinking about selling it. I don't think I would be willing to part it out, it would be a bit to hard to see part of the collection on my shelf so I am pretty sure that the only way I would sell it is if someone bought it as a collection. I was wondering if anyone on this list would mind helping me determine the current value of the entire collection You can view it by pasting this url into your browser http://home.roadrunner.com/~bobadebt/ The images of the spheres on the web site are not photo shopped to look perfectly round, the size and shape are as photographed with slight editing to adjust the lighting and sharpness I don't mind discussing the collection via the list but I would prefer that all appraisals of my collection be sent to me via email to bobad...@ec.rr.com I know that I have not been around for a while and that is due to many factors that I would rather not go into but I hope I am not breaking any new rues by submitting this request. Thanks in advance __ 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] Meteorite Times March Issue Up Celebrating 10 Years!
Hello Everyone, The March issue of Meteorite Times is now up and marks 10 years of producing Meteorite Times, having started with the first issue in April 2002. It's hard to believe that 10 years (120 monthly issues) have gone by so quickly. A special thank you to all our contributors who've stuck with us for so long. The following URL gives access to the Web Browser View, Flash Magazine View, and Mobile PDF. http://www.meteorite-times.com/monthly-issues/ *NEW* - This URL provides an easier way to access the archive of articles by column from April 2002 through August 2009. This URL is available from the Home page and also on the Horizontal Menu Bar. http://www.meteorite-times.com/article-archives/ This page has an easy way to view all of the Mag View issues in the Archives section of the page. http://issuu.com/meteorite-times/docs Enjoy! Paul and Jim __ 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] Meteorite Times March Issue Up Celebrating 10 Years!
Ho'omaika'i 'ana e Paul and Jim, Congratulations on marking ten years of the Meteorite Times, one of my favorite online publications. I always look forward to each issue and the contributing articles from several of our members here on the met list. I appreciate the improvements in look and feel (user experience) and content that you've made over the years, and wish you much success in the next ten years+ of the Meteorite Times. gary On Mar 25, 2012, at 7:57 AM, Paul Harris wrote: Hello Everyone, The March issue of Meteorite Times is now up and marks 10 years of producing Meteorite Times, having started with the first issue in April 2002. It's hard to believe that 10 years (120 monthly issues) have gone by so quickly. A special thank you to all our contributors who've stuck with us for so long. The following URL gives access to the Web Browser View, Flash Magazine View, and Mobile PDF. http://www.meteorite-times.com/monthly-issues/ *NEW* - This URL provides an easier way to access the archive of articles by column from April 2002 through August 2009. This URL is available from the Home page and also on the Horizontal Menu Bar. http://www.meteorite-times.com/article-archives/ This page has an easy way to view all of the Mag View issues in the Archives section of the page. http://issuu.com/meteorite-times/docs Enjoy! Paul and Jim __ 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 Gary Fujihara Big Kahuna Meteorites (IMCA#1693) 105 Puhili Place, Hilo, Hawai'i 96720 http://bigkahuna-meteorites.com/ http://shop.ebay.com/fujmon/m.html (808) 640-9161 __ 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] Dismayed and Forlorn Meteorite
Is it just me, or does this specimen look sad, lonely, or otherwise depressed? Maybe it needs some anti-depressants. http://www.ebay.com/itm/160765473186 ;) -- --- Galactic Stone Ironworks - MikeG Web: http://www.galactic-stone.com Facebook: http://www.facebook.com/galacticstone Twitter: http://twitter.com/GalacticStone RSS: http://www.galactic-stone.com/rss/126516 --- __ 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] LPSC 43 - Any big news or unexpected meteorite stories?
Hi List, LPSC 43 has been over for two days now. There seems to have been a small spike in the usual amount of stories on the web concerning planetary science, but nothing new that I am aware of regarding meteorites. Tissint was expected to be a topic of conversation. Is there anything new about Tissint, or any other meteorite that has emerged at this year's conference? Inquiring laymen want to know. ;) Best regards, MikeG --- Galactic Stone Ironworks - MikeG Web: http://www.galactic-stone.com Facebook: http://www.facebook.com/galacticstone Twitter: http://twitter.com/GalacticStone RSS: http://www.galactic-stone.com/rss/126516 --- __ 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] LPSC 43 - Any big news or unexpected meteoritestories?
Mike... Is there anything new about Tissint, or any other meteorite that has emerged at this year's conference? there was an oral session on New Martian Meteorites, and the lead paper described Tissint (http://www.lpi.usra.edu/meetings/lpsc2012/pdf/2510.pdf). but that's it re: Tissint. elsewhere, I chased down a couple of papers alluding to specific comets capable of dropping meteorites, but the modeling is (IMHO) incomplete. so you'll just have to settle for LPSC results having to do with planets! ;-) http://www.skyandtelescope.com/news/March-Madness-on-Mercury-143756146.html clear skies, Kelly J. Kelly Beatty Senior Contributing Editor SKY TELESCOPE 617-416-9991 SkyandTelescope.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] Think About Selling my Entire 50mm Sphere Collection
G'Day David and List Wow, I never thought I'd see the day when you parted with that collection. I've always admired it and I'm happy to say that I have quite a few pieces that I got off you from the process of making these spheres. I don't really know if you could put a price on them, so much time, dedication, truly a unique collection. I wish you luck my friend. This is truly a collection to snap up Cheers John Cabassi IMCA # 2125 On Sat, Mar 24, 2012 at 9:54 PM, David Deyarmin bobad...@ec.rr.com wrote: Some of you may remember me from a couple years ago. I have a really odd collection that is only comprised of 50mm Spheres. Back when I started the collection I was really excited about it and I was able to get 19 different meteorite and meteorite related spheres but then it just kind of stalled. It became apparent that it would be very difficult and expensive to expand my collection so I kind of lost interest. Every once in a while I try to find some new material to make another sphere but I'm just not as enthusiastic about the collection as I once was. So I am thinking about selling it. I don't think I would be willing to part it out, it would be a bit to hard to see part of the collection on my shelf so I am pretty sure that the only way I would sell it is if someone bought it as a collection. I was wondering if anyone on this list would mind helping me determine the current value of the entire collection You can view it by pasting this url into your browser http://home.roadrunner.com/~bobadebt/ The images of the spheres on the web site are not photo shopped to look perfectly round, the size and shape are as photographed with slight editing to adjust the lighting and sharpness I don't mind discussing the collection via the list but I would prefer that all appraisals of my collection be sent to me via email to bobad...@ec.rr.com I know that I have not been around for a while and that is due to many factors that I would rather not go into but I hope I am not breaking any new rues by submitting this request. Thanks in advance __ 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] LPSC 43 - Any big news or unexpected meteoritestories?
Hi Mike and Kelly: There were several sessions on the Dawn mission. Unfortunately, I missed many of them on Friday. However, what was of most interest to me is the likelihood that the dark areas on Vesta are the remnants of low velocity impacts by carbonaceous asteroids. Hopefully over the next few months, there will be some more news releases/publications on this. Larry PS Still not happy with calling Vesta a planet. Mike... Is there anything new about Tissint, or any other meteorite that has emerged at this year's conference? there was an oral session on New Martian Meteorites, and the lead paper described Tissint (http://www.lpi.usra.edu/meetings/lpsc2012/pdf/2510.pdf). but that's it re: Tissint. elsewhere, I chased down a couple of papers alluding to specific comets capable of dropping meteorites, but the modeling is (IMHO) incomplete. so you'll just have to settle for LPSC results having to do with planets! ;-) http://www.skyandtelescope.com/news/March-Madness-on-Mercury-143756146.html clear skies, Kelly J. Kelly Beatty Senior Contributing Editor SKY TELESCOPE 617-416-9991 SkyandTelescope.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 __ 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] LPSC 43 - Any big news or unexpected meteoritestories?
Awesome! Waiting for that CR impregnated eucrite - Original Message - From: lebof...@lpl.arizona.edu To: Kelly Beatty jkellybea...@comcast.net Cc: 'meteorite-list' meteorite-list@meteoritecentral.com Sent: Sunday, March 25, 2012 4:57 PM Subject: Re: [meteorite-list] LPSC 43 - Any big news or unexpected meteoritestories? Hi Mike and Kelly: There were several sessions on the Dawn mission. Unfortunately, I missed many of them on Friday. However, what was of most interest to me is the likelihood that the dark areas on Vesta are the remnants of low velocity impacts by carbonaceous asteroids. Hopefully over the next few months, there will be some more news releases/publications on this. Larry PS Still not happy with calling Vesta a planet. Mike... Is there anything new about Tissint, or any other meteorite that has emerged at this year's conference? there was an oral session on New Martian Meteorites, and the lead paper described Tissint (http://www.lpi.usra.edu/meetings/lpsc2012/pdf/2510.pdf). but that's it re: Tissint. elsewhere, I chased down a couple of papers alluding to specific comets capable of dropping meteorites, but the modeling is (IMHO) incomplete. so you'll just have to settle for LPSC results having to do with planets! ;-) http://www.skyandtelescope.com/news/March-Madness-on-Mercury-143756146.html clear skies, Kelly J. Kelly Beatty Senior Contributing Editor SKY TELESCOPE 617-416-9991 SkyandTelescope.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 __ 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] Planet Mercury Even Weirder Than We Thought
Paul, Wow. This is exciting news. Once again, it sounds like a meteorite from Mercury would be either all silica (glass) or a combination of glass and sulfide depending on the depth of the impact that dislodged the material. My question is this; should we be looking for silicate meteorites? Or taking a second look at past rejects because they were to glassy? Too much quartz even? Best regards, Carl meteoritemax -- Cheers Paul H. oxytropidoce...@cox.net wrote: Planet Mercury Even Weirder Than We Thought Wired Science, by Adam Mann, March 21, 2012 | http://www.wired.com/wiredscience/2012/03/dynamic-mercury-geology/?pid=3477pageid=101963 http://www.wired.com/wiredscience/2012/03/dynamic-mercury-geology/?pid=3480pageid=101963 Mercury has been 'dynamic world' by Paul Rincon BBC News, March 21, 2012 http://www.bbc.co.uk/news/science-environment-17248776 Mercury's Surprising Core and Landscape Curiosities ScienceDaily, March 21, 2012 http://www.sciencedaily.com/releases/2012/03/120321105505.htm The paper is: Zuber, M. T., D. E. Smith, and many others, 2012, Topography of the Northern Hemisphere of Mercury from MESSENGER Laser Altimetry. Science Express. Published Online March 21, 2012 http://www.sciencemag.org/content/early/2012/03/20/science.1218805.abstract http://www.sciencemag.org/content/early/2012/03/20/science.1218805/suppl/DC1 MESSENGER Planetary Conference Multimedia Page http://messenger.jhuapl.edu/news_room/presscon11_multi.html Best wishes, Paul H. __ 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] LPSC 43 - Any big news or unexpected meteoritestories?
Hi Richard all, We already have meteorites representing this possible scenario with numerous Howardites containing carbonaceous clasts. Have a look at this piece I got from Edwin Patrick Thompson about 6 months ago... beautiful material: http://meteorites.com.au/images/NWA-6695-Howardite-3.7g.jpg Cheers, Jeff -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Richard Montgomery Sent: Monday, 26 March 2012 11:22 AM To: lebof...@lpl.arizona.edu; Kelly Beatty Cc: 'meteorite-list' Subject: Re: [meteorite-list] LPSC 43 - Any big news or unexpected meteoritestories? Awesome! Waiting for that CR impregnated eucrite - Original Message - From: lebof...@lpl.arizona.edu To: Kelly Beatty jkellybea...@comcast.net Cc: 'meteorite-list' meteorite-list@meteoritecentral.com Sent: Sunday, March 25, 2012 4:57 PM Subject: Re: [meteorite-list] LPSC 43 - Any big news or unexpected meteoritestories? Hi Mike and Kelly: There were several sessions on the Dawn mission. Unfortunately, I missed many of them on Friday. However, what was of most interest to me is the likelihood that the dark areas on Vesta are the remnants of low velocity impacts by carbonaceous asteroids. Hopefully over the next few months, there will be some more news releases/publications on this. Larry PS Still not happy with calling Vesta a planet. Mike... Is there anything new about Tissint, or any other meteorite that has emerged at this year's conference? there was an oral session on New Martian Meteorites, and the lead paper described Tissint (http://www.lpi.usra.edu/meetings/lpsc2012/pdf/2510.pdf). but that's it re: Tissint. elsewhere, I chased down a couple of papers alluding to specific comets capable of dropping meteorites, but the modeling is (IMHO) incomplete. so you'll just have to settle for LPSC results having to do with planets! ;-) http://www.skyandtelescope.com/news/March-Madness-on-Mercury-143756146.html clear skies, Kelly J. Kelly Beatty Senior Contributing Editor SKY TELESCOPE 617-416-9991 SkyandTelescope.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 __ 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 __ 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] Dennis Cox paradigm re two 12.9 Ka BP Taurid Complex ice comet fragment stream impact air burst Boslough jet storms 800 km wide -- long detailed review -- Google Earth images: Rich Mu
Dennis Cox paradigm re two 12.9 Ka BP Taurid Complex ice comet fragment stream impact air burst Boslough jet storms 800 km wide -- long detailed review -- Google Earth images: Rich Murray 2012.03.25 http://rmforall.blogspot.com/2012/03/dennis-cox-paradigm-re-two-129-ka-bp.html http://tech.groups.yahoo.com/group/astrodeep/message/99 https://mail.google.com/mail/u/0/?ui=2ik=cea3602cdeview=lgmsg=1364b5d66e2a8d95 http://wp.me/pKGTX-oI http://craterhunter.wordpress.com/2012/03/25/a-different-kind-of-climate-catastrophe-2-2/ http://craterhunter.wordpress.com/a-different-kind-of-climate-catastrophe/ Sun, Mar 25, 2012 at 12:37 PM New post on A Catastrophe of Comets A Different Kind of Climate Catastrophe by Dennis Cox A couple of years ago, as a hobby, and pass-time, I set out to see if I could work out a better way of identifying potential sites to go meteorite hunting. I had learned to do battle damage assessment from aerial reconnaissance photos a long time ago in the Army. And the blast damage, and ground effects from an explosive event, are pretty much the same, no matter what the source of the explosion might be. It’s only a question of scale, and explosive force. Visually, there is very little difference in the appearance of a bomb crater, and an impact crater of the same size. So a forensic technique of reading the patterns of movement in the emplacement of blast effected materials on the ground applies well in the search for potential impact related geology. The quality of the image data now commonly available to anyone with a good PC, an internet connection, and a copy of Google Earth, is excellent. In the past five years, the publically available image data has really come into its own. And today’s 21st century satellite imagery allows us to study the surface of the Earth at a level of detail our fathers could never have imagined [ end of review ] .Some time between 20,000, and 30,000 years ago a great comet 50 km to 100 km wide was thrown into the inner solar system. And it immediately began to break up. That disintegrating comet was the progenitor of the Taurid Complex. A family of objects in related, short period, Earth crossing orbits. And 12,900 years ago, just after the end of the last ice age, two large clusters of fragments from that monster, both with the fragment size, density, and distribution like we see in comets Linear, or SW-3. Had a celestial train wreck with this fair world of ours. The individual fragments of each cluster were so close, that in the heart of their respective impact zones, only the first fragments to fall, fell into cold atmosphere. The rest fell into the already superheated impact plumes of those that had gone before. And they just cranked up the heat and pressure. Something like 1.1 billion tons of material fell in those two clusters. And the event lasted a little over an hour. The progression of the event was a result of the Earth’s movement along its orbital path, as it crossed through the orbital path of the giant comet’s debris stream. Not a product of the Earth’s rotation. So that, if it was a daytime event, the fragments would’ve been outbound from perihelion. And as the Earth crossed the debris stream, the airburst storms would’ve begun in the west, and progressed to the east. In a night time event, the debris stream would be inbound towards their perihelion, and the opposite would be true. You get a better idea of the progression of the event if you consider how fast the Earth itself is traveling. Assuming that the Earth’s orbit is roughly circular, we can work out its orbital speed with some fairly simple algebra. Since the average distance from the Earth to the Sun is 149,597,890 km., the Earth travels a distance of 2*Pi*(149,597,890), or 949,951,264.43 km per year. But I can’t wrap my brain around that number when you write it that way. I need it broken down a little more. There are 365 days in a year, and 24 hours per day. So we get a velocity of 107,300 km/h, or if you prefer, 67,062 miles per hour. So what? How do we put that into a scale that makes some sense? We need to put that number into some kind of subjective context to make sense of it. Consider this: Earth's diameter at the Equator is something like 7,926.28 miles, or 12,756.1 km. Which means we’re riding the Earth through space along her own orbital path at a little more than 8.41 times her own width every hour. So, as the Earth crossed the orbit of the Taurid progenitor’s still concentrated debris streams, she would have only been in the path of that stuff for about an hour. And the two large clusters of fragments would have fell within a few short minutes of each other. The eastern end of the Laurentide Ice sheet got hit in an area from Northern Minnesota, and the Great Lakes to the Arctic Circle. When the down-blasts of thermal impact plasma hit the Laurentide Ice sheet, they caused titanic hydrothermal explosions (steam) that lofted huge icebergs hundreds of
Re: [meteorite-list] Think About Selling my Entire 50mm Sphere
Well the estimates were a bit disappointing. The best was $8k - $10k sold via auction with a huge commission and photography fees that just about take most of the lower value so that would be futile. I was thinking that this collection was worth at least $20k but I guess that was just a pipe dream. I know that I have time and money invested in this collection that is equal to or greater then my $20k value and I was hoping the unique nature of the the collection would contribute to it's value but it seems to be an issue. Oh well, I guess I'll just have to hold onto them for now. __ 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
