Re: [meteorite-list] Meteorite Questions
I think what's lurking in this material is a wish to be able to predict. Bill -Original Message- From: [EMAIL PROTECTED] Sent: Thu, 30 Aug 2007 00:43:00 -0500 To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Meteorite Questions Hi, All, This is the notion of meteoroid streams (as opposed to the meteor streams of a comet. Meteoroid streams would have an asteroidal origin. This idea was a big back-and-forth controversy in the XIXth century. One problem is that the term meteoroid streams is now being used for both cometary AND asteroidal streams. Sloppy usage. There ARE asteroidal non-cometary meteoroid streams: http://www.lpi.usra.edu/meetings/lpsc2007/pdf/2038.pdf and of course there could be many more if they are composed of objects too small to be easily detected (yet). Venus has a convergence of both kind of streams, so apparently Venus gets plenty of meteorites (if they can survive the hellacious trip through its atmosphere... I don't think so.) http://www.ingentaconnect.com/content/bsc/mnr/1998/0294/0002/art9 There are nine cometary meteoroid streams that are actually associated with an asteroid instead of a comet, unless of course, that asteroid is a dead comet... The best known of the nine is the Geminids and the asteroid 3200 Phaethon. http://www.ingentaconnect.com/content/klu/moon/2005/0095/F0040001/2243 A chemical argument that H chondrites come from meteoroid streams and that they can be grouped by what stream they come from and that the composition of streams changes only very slowly over time: http://www.agu.org/pubs/crossref/1997/97JE00137.shtml Obviously, no gravitational influence great enough to separate two adjacent rocks in a short period of time could exist for a meteoroid stream, or pretty soon --- No Stream! The key to having meteoroid streams at all is that the Universe leaves them alone and does not mess with them... Sterling K. Webb - Original Message - From: Maria Haas [EMAIL PROTECTED] To: TheMeteorite-list meteorite-list@meteoritecentral.com Cc: Walter Branch [EMAIL PROTECTED] Sent: Thursday, August 30, 2007 2:53 AM Subject: Re: [meteorite-list] Meteorite Questions Walter asked: Also, I have read that some meteoroids travel through space in streams and impact the Earth simultaneously (i.e., they have already broken up before they hit the Earth's atmosphere). How can this be? I would think that once a meteoroid has broken in space (most likely due to impact), minute deviations of the individual pieces in the initial trajectory would translate into ever increasing deviations in the individual piece's trajectory, over time. Unless two pieces were traveling in EXACTLY parallel lines, over time the pieces would be widely dispersed in space. From Robert Haag's 2003 Collection of Meteorites, Page 89: Saint Severin (large at top) 3.1 kilos, and Ensisheim (small, bottom) 85 grams. Amphoterite chondrites (LL6) 20% total iron. These meteorites are both historically and scientifically important - while they fell over 500 years apart, they landed within 100 miles of one another and are chemically and visually identical. In fact, when placed side by side, they appear to be from one contiguous piece. Saint Severin fell June 6, 1966 and Ensisheim fell November 16, 1492. Obviously they come from the same asteroid parent body. To expand on Walter's question -- whether they travel in streams or rubble piles, any idea how these two could fall so many years apart and within such a close proximity of each other? Are there others that have fallen together like Saint Severin and Ensisheim? Maria __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list GET FREE 5GB ONLINE STORAGE - Safely store your documents, photos and music online! Visit http://www.inbox.com/storage to find out more! __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Bassikounou Sale
In the beginning, Deans meteorites were an exciting grab bag. I have half a dozen that were stunning surprises. Now you can expect humdrum stuff at best :P Bill -Original Message- From: [EMAIL PROTECTED] Sent: Wed, 29 Aug 2007 22:25:54 -0700 (PDT) To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Bassikounou Sale I have a quantity of Bassikounou with nice crust. I actually didnt want this as I like cheap unclassified stuff but when me and my Moroccan partner was packing up after St Marie the box with the Bassikounou sort of went missing and we hadent been able to account for it the last couple of months. But today I finally got my 800 kilo shipment that I sent to myself from St marie and for some reason the missing Bassikounou was somehow in there. We sold 4 or 5 kilos in St Marie and Ensisheim at 2 Euros a gram. Most pieces are in the 200 to 400 gram range. If anybody is interested let me know and in the next day or two I will send you a list of what is available (Before I sell it I have to contact my moroccan partner to see what pieces I can sell as some of it is already spoken for). But there will be at least 8 or 10 pieces for sale. I have a 3661 gram piece but it might be sold. Sincerely DEAN www.meteoriteshop.com Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] HiRISE Camera Returns New View of Dark Pit on Mars
A link to some new hires pics of the martian cave... http://hirise.lpl.arizona.edu/PSP_004847_1745 wow! Mark __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] HiRISE Camera Returns New View of Dark Pit onMars
Forgot to add this link ... http://hirise.lpl.arizona.edu/images/2007/details/cut/PSP_004847_1745_cu t_b.jpg take a look, simply stunning.. Mark -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mark ford Sent: 30 August 2007 08:49 To: Meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] HiRISE Camera Returns New View of Dark Pit onMars A link to some new hires pics of the martian cave... http://hirise.lpl.arizona.edu/PSP_004847_1745 wow! Mark __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite Questions
Hello Walter, All, I'll tkae this apart bit by bit. For example, why does the rim of meteor crater appear squared in some photos, while in others it appears very round? Perspective? Lighting? Extremely highly localized tectonic shifting (back and forth)? It has eroded into a somewhat rectangular shape over the 50,000 years that it's spent sitting there in the desert...it's current shape is probably due somewhat to stress fractures that exist either because they were created in the underlying rock by tectonic movement or possibly from the impact itself, so the angle of impact might have something to do with the orientation of the 'sides,' but you're dealing with advanced geology and physics there, in both of which I'm something of a dilettante. Also, why is Tatahouine so green? Olivine? Krylon? Diogenites like Tatahouine are composed primarily of granoblastic orthopyroxines, and their colour is derived from this. They all started out as green crystals just like Tatahouine. I am looking at a slice of NWA 4664 right now (thank you Eric Olson) and I don't see any much green. Maybe that one is a bad example because NWA 4664 doesn't even look like at Diogenite! Diogenites like Johnstown and Bilanga have a different colour because although they started out looking like Tatahouine and the other, more green, unbrecciated diogenites, the individual crystals have since been shattered, creating a light coloured powder between the still-green pieces of orthopyroxine. If terrestrial weathering occurs and there's any iron in the diogenite, it will turn yellow or possibly even brown. What ticks me off is when dealers try to pass off those small black specks on tiny fragments of Tatahouine as fusion crust - they're not. The little shiny black things are chromite crystalslearn that already. Also, I have read that some meteoroids travel through space in streams and impact the Earth simultaneously (i.e., they have already broken up before they hit the Earth's atmosphere). How can this be? I would think that once a meteoroid has broken in space (most likely due to impact), minute deviations of the individual pieces in the initial trajectory would translate into ever increasing deviations in the individual piece's trajectory, over time. Unless two pieces were traveling in EXACTLY parallel lines, over time the pieces would be widely dispersed in space. If two large asteroids collide in space, what's to say that a number of fragments won't go in a similar direction? It might be rather unlikely, but why do you consider it impossible for there to be 'streams?' I admit that the concept is probably ill-named, but we aren't necessarily talking about small swarms or trains of meteorites going along - the concept is used to generally describe fragments of the same asteroid that wind up in similar orbits around the sun that we might come across coming from the same general direction at a similar velocity, etc, possibly years apart from each other. (Skipping a paragraph in here because it's already been addressed.) Traveling over eons to make it to the inner solar system, how can a meteoroid stream stay intact enough to cause a tiny strewnfield on the Earth? I would not think that the Earth's gravitational field would be strong enough to do what Jupiter did. That's the point - they don't stay together - a similar orbit is all we're talking about... Also, I know I have asked this before but I still don't understand how researchers can determine cosmic ray exposure ages for a meteorite which ablated a significant portion of the material that absorbed most of the cosmic rays and which may have fragmented in flight through the Earth's atmosphere. I've heard 'Ne' as well, as well as Krypton...I don't know the procedure on that, but surely there's a scientific mind on here who could shed some light on the subject without having to do the sleuthing that I would to find it... With regard to the colour of olivines in Pallasites... Unweathered pallasites will generally have green-to-black olivines, depending on the trace elements within them, but other silicates within irons can be mistaken for olivines like the silicates in IIE irons, etc - these can range all the way to red, which seems only logical when one takes into account that small spinel crystals have been found in that group of meteorites, as well as in others. The yellower or more red the olivines in a typical pallasite are, the more weathered the pallasite is, in general. Some weathered olivines seem to hold their colour well, but in general, the older the pallasite is, the more fractured and rust-stained the olivines within become. It's hard to single a single pallasite out for having such stained crystals, as most have more-and-less weathered sections (I've seen green-to-red Albin, Brahin, Brenham, Eagle Station, Ahumada, Admire, Pallasovka, etc). The only pallasites with crystals of a reliable colour are, to my knowledge, falls
Re: [meteorite-list] AD: NEW meteorite coin, NWA 869 metal coin for sale.
I think this should ba called MEDAL, becouse it is not coin, have no nominal (f.e. in USD) and it is not legal tender coin, so it have no value to coin collectors. I understand that it is like unclassified meteorite :) that not exist in Met. Bulletin. Ofcourse for us its nice addon to our collections. -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryt.net [EMAIL PROTECTED] http://www.PolandMET.com [EMAIL PROTECTED] http://www.Gao-Guenie.com GSM +48(607)535 195 [ Member of Polish Meteoritical Society ] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin, NWA 869 metal coin for sale.
Marcin and all, I don't care what you call it. You can wear it, put it in your pocket or toss it in a fountain. If you bought it you got it. Bill -Original Message- From: [EMAIL PROTECTED] Sent: Thu, 30 Aug 2007 10:35:27 +0200 To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] AD: NEW meteorite coin, NWA 869 metal coin for sale. I think this should ba called MEDAL, becouse it is not coin, have no nominal (f.e. in USD) and it is not legal tender coin, so it have no value to coin collectors. I understand that it is like unclassified meteorite :) that not exist in Met. Bulletin. Ofcourse for us its nice addon to our collections. -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryt.net [EMAIL PROTECTED] http://www.PolandMET.com [EMAIL PROTECTED] http://www.Gao-Guenie.com GSM +48(607)535 195 [ Member of Polish Meteoritical Society ] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks From Space Picture of the Day - August 30, 2007
http://www.spacerocksinc.com/August_30_2007.html _ ** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin, NWA 869 metal coin for sale.
I don't care what you call it. You can wear it, put it in your pocket or toss it in a fountain. If you bought it you got it. Bill Dear Bill, list Ofcourse that we dont care becouse we dont collect coins, but why we scould call things different than they should be called? Tell the same to the coin collectors. I was imediatelly corected by person who have more experience in coin community than myself, that this is not coin, but medal (this was about Campo medal). COIN = issued by a government of a counry and has legal tender. It can be circulation or non-circulation. With the last means you can't pay with it but it has legal value and it can be changed at the government to USD. I not try to discredite Mike new coin (medal) becouse it is very nice work, and I have bough several Campo medals in Tucson. I only want to correct fact that this is not coin in a coin collectors meaning. Thats all. -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryt.net [EMAIL PROTECTED] http://www.PolandMET.com [EMAIL PROTECTED] http://www.Gao-Guenie.com GSM +48(607)535 195 [ Member of Polish Meteoritical Society ] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] New Atacama Desert Meteorite Stewnfields Paper Published
Dear Friends, There is an interesting peer-reviewed paper in the October issue of the Journal of Arid Environments, which provides a detailed analysis of 62 non-paired meteorites found in the Atacama Desert of Chile. The paper is: Munoza, C., N. Guerraa, J. Martinez-Friasb, Author, R. Lunarc and J. Cerdaa, 2007, The Atacama Desert: A preferential arid region for the recovery of meteorites—Find location features and strewnfield distribution patterns. Journal of Arid Environments. vol. 71, no. 2, pp. 188-200. Among other analyses, they mapped the principle strewnfield distribution patterns and summarized the general nature of their character. They found that these finds typically: (1) showed more than a quarter of their body exposed; (2) underwent some sign of terrestrial weathering; (3) stone meteorites have a brownish desert-varnish on hand specimen; (4) are non-oriented pieces; and (5) are commonly members of a greater mass distributed in a certain place. The Atacama Central Depression was where the most meteorites were found and the distribution of saline deposits influenced the weathering and preservation of meteorites. Best Regards, Paul H. Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=listsid=396545469 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Questions (square craters)
It is a jointed crater, determined by the geology of the area of impact. http://science.nasa.gov/headlines/y2000/ast26sep_1.htm Chuck Date: Thu, 30 Aug 2007 01:14:27 -0700 From: Jason Utas [EMAIL PROTECTED] Subject: Re: [meteorite-list] Meteorite Questions To: Meteorite-list meteorite-list@meteoritecentral.com For example, why does the rim of meteor crater appear squared in some photos, while in others it appears very round? Perspective? Lighting? Extremely highly localized tectonic shifting (back and forth)? It has eroded into a somewhat rectangular shape over the 50,000 years that it's spent sitting there in the desert...it's current shape is probably due somewhat to stress fractures that exist either because they were created in the underlying rock by tectonic movement or possibly from the impact itself, so the angle of impact might have something to do with the orientation of the 'sides,' but you're dealing with advanced geology and physics there, in both of which I'm something of a dilettante. Charles O'Dale President RASC - Ottawa Centre http://www.ottawa.rasc.ca/index.php http://www.ottawa.rasc.ca/science/index.html __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin, NWA 869 metal coin for sale.
It is a round minted piece of metal, and it costs money. The company that makes them is called COINS FOR ANYTHING. While not legal tender, it is still a coin. A medal is given to people for acts and deeds, this does not qualify for that either. Mike By the way, they are selling fast, so email me if you want a spcific number. --- PolandMET [EMAIL PROTECTED] wrote: I don't care what you call it. You can wear it, put it in your pocket or toss it in a fountain. If you bought it you got it. Bill Dear Bill, list Ofcourse that we dont care becouse we dont collect coins, but why we scould call things different than they should be called? Tell the same to the coin collectors. I was imediatelly corected by person who have more experience in coin community than myself, that this is not coin, but medal (this was about Campo medal). COIN = issued by a government of a counry and has legal tender. It can be circulation or non-circulation. With the last means you can't pay with it but it has legal value and it can be changed at the government to USD. I not try to discredite Mike new coin (medal) becouse it is very nice work, and I have bough several Campo medals in Tucson. I only want to correct fact that this is not coin in a coin collectors meaning. Thats all. -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryt.net [EMAIL PROTECTED] http://www.PolandMET.com [EMAIL PROTECTED] http://www.Gao-Guenie.com GSM +48(607)535 195 [ Member of Polish Meteoritical Society ] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] New Analysis Of Odessa Crater Impact Publsihed
Dear Friends, A paper, which present a detailed analysis of the Odessa crater, Texas has been published in the journal of International Journal of Impact Engineering. The paper is: Littlefield, D. L., P. T. Bauman, and A. Molineuxc, 2007, Analysis of formation of the Odessa crater. International Journal of Impact Engineering. vol. 34, no. 12, pp. 19531961. http://www.sciencedirect.com/science?_ob=ArticleURL_udi=B6V3K-4MS9RDR-1_user=3787556_coverDate=12%2F31%2F2007_rdoc=1_fmt=_orig=search_sort=dview=c_acct=C61383_version=1_urlVersion=0_userid=3787556md5=ea5c24c5520861f070d6d17e841771ac In an hydrodynamics codes analysis, which integrated the geotechnical (mechanical) properties of the target material along with details of the topology of the crater, this study concluded: 1. The crater resulted from a near-grazing impact at very high obliquity, likely greater than 60 degrees; 2. The depth-to-diameter ratio of the Odessa crater is in a range that can be reproduced only with a high-obliquity impact; 3. The meteorite likely came from either the southwest or northeast; 4. meteorite impact energy was more than 50 times larger than originally estimated. and 5. the meteor diameter was much larger than 2 meters. Yours, Paul H. Shape Yahoo! in your own image. Join our Network Research Panel today! http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin, NWA 869 metal coin for sale.
It is a round minted piece of metal, and it costs money. The company that makes them is called COINS FOR ANYTHING. While not legal tender, it is still a coin. A medal is given to people for acts and deeds, this does not qualify for that either. Mike Rocks for road and meteorites cost money and both are stones, but not all of them are meteorites. I suggest You to ask someone who sell/collect coins. I asked dealer from I bough Liberia and Palau meteoriote coins. Its not coin :) OK, whatever -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryt.net [EMAIL PROTECTED] http://www.PolandMET.com [EMAIL PROTECTED] http://www.Gao-Guenie.com GSM +48(607)535 195 [ Member of Polish Meteoritical Society ] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin, NWA 869 metal coin for sale.
Sorry, but it is a coin. Using the Palau as an example, they are the exact same thing as my coins just made with silver and by the government. Try and spend one in a shop there to pay for something, they will laugh you out of the shop. It can be called a coin, a medal or a token. Again, the company is called Coins for Anything, and has been in business for 30 years. Perhaps you should call them and tell them they named their company wrong. Mike --- PolandMET [EMAIL PROTECTED] wrote: It is a round minted piece of metal, and it costs money. The company that makes them is called COINS FOR ANYTHING. While not legal tender, it is still a coin. A medal is given to people for acts and deeds, this does not qualify for that either. Mike Rocks for road and meteorites cost money and both are stones, but not all of them are meteorites. I suggest You to ask someone who sell/collect coins. I asked dealer from I bough Liberia and Palau meteoriote coins. Its not coin :) OK, whatever -[ MARCIN CIMALA ]-[ I.M.C.A.#3667 ]- http://www.Meteoryt.net [EMAIL PROTECTED] http://www.PolandMET.com [EMAIL PROTECTED] http://www.Gao-Guenie.com GSM +48(607)535 195 [ Member of Polish Meteoritical Society ] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ancient Sudbury Meteorite Blasted Debris Into Michigan
http://www.amherstdaily.com/index.cfm?sid=58282sc=58 Ancient Sudbury meteorite blasted debris into Michigan MARGARET MUNRO CanWest News Service August 29, 2007 A mountain-sized meteorite appears to have created Sudbury's gigantic crater and sent a tsunami racing though ancient oceans, say scientists who have uncovered a thick layer of debris the extraterrestrial interloper hurled all the way into Michigan. A Canadian-U.S. team says the two-to-four-metre-thick layer of ejecta, which they found south of Lake Superior, bears the clear signature of a meteorite. Perhaps even more intriguing, they say the ejecta appears to have been stirred up by a mega-tsunami, possibly two, that swept through the ancient oceans after the space rock hit. The material blown out of the crater was reworked during deposition by a tsunami, says Peir Pufahl, lead author of a report on the find in the September editions of the journal Geology. He says shock waves generated by the impact of the meteorite, believed to have been about the size of Mt. Everest, would have been powerful enough to generate giant waves in near-by oceans. We also get beautiful rock preserved in tear drops just as you'd expect if you had molten rock flying through the atmosphere and it cooled, Pufahl said in a interview. The Sudbury crater, the second largest ever found, was formed 1.85 billion years ago and is much bigger than the one linked to the demise of the dinosaurs. Some have suggested a comet carved out the crater, which originally measured up to 280 kilometres in diameter. But the material uncovered in northern Michigan points to a meteorite, since it contains an unusually high concentration of iridium, which occurs in low amounts in icy comets but in high levels in space rocks. The ejecta layer, which the geologists found buried a kilometre underground south of Lake Superior, builds on similar evidence uncovered near Thunder Bay, Ont., a few years ago. The newly found material not only contains high levels of iridium and melt drops but also shocked crystals deformed by the intense energy, and evidence of reworking by a tsunami, the team reports. The impact of the meteorite would have been felt globally but most of the evidence has eroded away over time. It's like a book with 90 per cent of pages missing, says Pufahl. He says the huge cloud of gas and molten rock hurled into the atmosphere would have put photosynthesis on hold for an extended period and may be linked to a long lull in the evolution of early life. Computer models have estimated the space rock could have been close to 20 kilometres across and travelling 20 kilometres a second, or 1,200 kilometres a minute, when it slammed into Earth. That energy has to go somewhere, says Pufahl. Some of it goes into deforming the rock it slams into, some of it obliterates the rock it slams into and throws it in to the atmosphere, and some of it is transmitted away from the impact as shock waves. It is those shocks waves that would impact on water to cause tsunamis. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Ancient Sudbury Meteorite Blasted Debris Into Michigan
Dear List Members, Here is an abstract of an additional recent paper by the same investigator published on the Sudbury impact. The abstract mentions tektites were found. http://www.eurekalert.org/pub_releases/2007-08/gsoa-sga082807.php Physical and chemical evidence of the 1850 Ma Sudbury impact event in the Baraga Group, Michigan Peir K. Pufahl, Acadia University, Earth and Environmental Science, Wolfville, Nova Scotia B4P 2R6, Canada; et al. Pages 827-830. A catastrophic extraterrestrial impact 1850 million years ago produced the Sudbury crater, the second largest known impact site on Earth. Pufahl et al.s discovery of debris in northern Michigan, USA, produced from this impact has provided new information regarding the nature of this event. A prominent iridium anomaly in impact-generated tsunami deposits containing shocked quartz, spherules, tektites, and accretionary lapilli demonstrate that the extraterrestrial body was a meteorite and not a comet, as previously proposed. The Sudbury event was larger than those responsible for later major extinction events, and may prove important in the evolution of early life on Earth. Best Regards, Dirk Ross...Tokyo --- Ron Baalke [EMAIL PROTECTED] wrote: http://www.amherstdaily.com/index.cfm?sid=58282sc=58 Ancient Sudbury meteorite blasted debris into Michigan MARGARET MUNRO CanWest News Service August 29, 2007 A mountain-sized meteorite appears to have created Sudbury's gigantic crater and sent a tsunami racing though ancient oceans, say scientists who have uncovered a thick layer of debris the extraterrestrial interloper hurled all the way into Michigan. A Canadian-U.S. team says the two-to-four-metre-thick layer of ejecta, which they found south of Lake Superior, bears the clear signature of a meteorite. Perhaps even more intriguing, they say the ejecta appears to have been stirred up by a mega-tsunami, possibly two, that swept through the ancient oceans after the space rock hit. The material blown out of the crater was reworked during deposition by a tsunami, says Peir Pufahl, lead author of a report on the find in the September editions of the journal Geology. He says shock waves generated by the impact of the meteorite, believed to have been about the size of Mt. Everest, would have been powerful enough to generate giant waves in near-by oceans. We also get beautiful rock preserved in tear drops just as you'd expect if you had molten rock flying through the atmosphere and it cooled, Pufahl said in a interview. The Sudbury crater, the second largest ever found, was formed 1.85 billion years ago and is much bigger than the one linked to the demise of the dinosaurs. Some have suggested a comet carved out the crater, which originally measured up to 280 kilometres in diameter. But the material uncovered in northern Michigan points to a meteorite, since it contains an unusually high concentration of iridium, which occurs in low amounts in icy comets but in high levels in space rocks. The ejecta layer, which the geologists found buried a kilometre underground south of Lake Superior, builds on similar evidence uncovered near Thunder Bay, Ont., a few years ago. The newly found material not only contains high levels of iridium and melt drops but also shocked crystals deformed by the intense energy, and evidence of reworking by a tsunami, the team reports. The impact of the meteorite would have been felt globally but most of the evidence has eroded away over time. It's like a book with 90 per cent of pages missing, says Pufahl. He says the huge cloud of gas and molten rock hurled into the atmosphere would have put photosynthesis on hold for an extended period and may be linked to a long lull in the evolution of early life. Computer models have estimated the space rock could have been close to 20 kilometres across and travelling 20 kilometres a second, or 1,200 kilometres a minute, when it slammed into Earth. That energy has to go somewhere, says Pufahl. Some of it goes into deforming the rock it slams into, some of it obliterates the rock it slams into and throws it in to the atmosphere, and some of it is transmitted away from the impact as shock waves. It is those shocks waves that would impact on water to cause tsunamis. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: eBay auctions
Hello List, I have a few auctions on ebay and some of them will end in less than 2 days. Interesting and rare to find items: Northeast Africa 003 (Lunar) http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200145959768 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200145969624 Yurtuk (AHOW) http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=200145959997 All items can be found at: http://search.ebay.com/_W0QQsassZsvassiliev Best regards, Sergey - Sergey Vasiliev U Dalnice 839, Prague 5, 15500 Czech Republic -- http://www.sv-meteorites.com http://impactites.net http://systematic-mineralogy.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin, NWA 869 metal coin for sale.
Hi, All, I do not say this in any way to criticize the manufacture, sale, nor trade in this item, nor the seller nor buyers of it, but this is a member of a very clear-cut class of items. An NWA 869 Meteorite Coin is a Collectable. So is any meteorite coin or your box of beloved Babylon 5 Commemorative Plates or a Souvenir Spoon from the 1939 New York World's Fair or a ceramic Wall Plaque of Old Faithful or a Baseball Card or a Beanie Baby or all Olympic Pins or Star Trek Memorabillia or Action Figures... A Collectable (or Collectible, take your pick; nobody seems to know which is right) is an Object specifically made To Be Collected. It is almost always in the form of a common object combined with an often irrelevant point of interest for whose sake it is Collected. One could as well have made and sell a Meteorite Zippo lighter or set of Meteorite Trading Cards or a Meteorite Music Box or any of the many hundreds of different things that could have a meteorite mounted in or on it or not have an actual meteorite at all, like a Series of Commemorative Plates of historic observed falls (Ensisheim, Wold Cottage, L'Aigle... right up to Holbrook and Sikhote-Alin). Is it a Coin, a Metal, a Token, a Beanie Baby? No. It's a Collectable. Sterling K. Webb __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Close Proximity of Meteorite Falls
Maria inquired: Are there others that have fallen together like Saint-Séverin and Ensisheim? Another example, definitely a textbook example, is Wethersfield, Connecticut: Wethersfield (1971) - L6 - Fall, 1971, Apr 08 - Olivine Fa25 Wethersfield (1982) - L6 - Fall, 1982, Nov 08 - Olivine Fa25 Best wishes, Bernd __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] (Not quite so) close a proximity of Meteorite Falls
Chassigny - SNC - Fall, 1815, Oct 03 (Martian + date!) Zagami - SNC - Fall, 1962, Oct 03 (Martian + date!) Bensour - LL6 - S3; W0 - breccia - fell February 11, 2002, 17:30, Morocco Kilabo - LL6 - S4; W0 - breccia - fell July 21, 2002, July 21, 19:30, Nigeria Bernd __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Close Proximity of Meteorite Falls
Closely resembling this are the very striking similarities, beyond any reasonable doubt of some possible relationship, at least as far as the most relevant heliocentric orbit parameters are concerned, of both the NEUSCHWANSTEIN European fall of April 06, 2002, and the PRIBRAM (Příbram) European fall of April 07, 1959. Then again the other odd thing about those two is: they are totally different in composition: while Neuschwanstein is an EL6, Příbram is an H5! This is just plain empirical scientific fact without interpretation, but some interpretation might hopefully be added one of these days... :-) Alex Berlin/Germany Original-Nachricht Datum: 30 Aug 2007 20:44:10 UT Von: [EMAIL PROTECTED] An: Meteorite-list@meteoritecentral.com Betreff: [meteorite-list] Close Proximity of Meteorite Falls Maria inquired: Are there others that have fallen together like Saint-Séverin and Ensisheim? Another example, definitely a textbook example, is Wethersfield, Connecticut: Wethersfield (1971) - L6 - Fall, 1971, Apr 08 - Olivine Fa25 Wethersfield (1982) - L6 - Fall, 1982, Nov 08 - Olivine Fa25 Best wishes, Bernd __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Close Proximity of Meteorite Falls
Hello all, Regarding the Wethersfield falls, it should also be noted that each hit a house in that town...different houses of course ;-) Cheers, Frank --- [EMAIL PROTECTED] wrote: Maria inquired: Are there others that have fallen together like Saint-Séverin and Ensisheim? Another example, definitely a textbook example, is Wethersfield, Connecticut: Wethersfield (1971) - L6 - Fall, 1971, Apr 08 - Olivine Fa25 Wethersfield (1982) - L6 - Fall, 1982, Nov 08 - Olivine Fa25 Best wishes, Bernd __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] OT: Lucy
http://www.sciam.com/article.cfm?alias=texas-museum-to-show-lucychanId=sa003modsrc=reuters_box GET FREE 5GB EMAIL - Check out spam free email with many cool features! Visit http://www.inbox.com/email to find out more! __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: NEW meteorite coin,
Coins do not have to be issued by a government, that only qualifies them as legal tender for the government that issued them. There is such a thing as a bullion coin and although it is usually reserved for precious metals they can be made of any type of metal. Even if they are made of gold you can't spend one at Wal-Mart but they are called coins __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Sale~ Meteorite.net For Sale- Final Offer
Just wanted to make 1 last post regarding the domain meteorite.net which I am offering for sale. This will be the last post before I list it at other venues. Asking price $10,000 or best offer. If interested contact me at [EMAIL PROTECTED] thanks _ Puzzles, trivia teasers, word scrambles and more. Play for your chance to win! http://club.live.com/home.aspx?icid=CLUB_hotmailtextlink __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Parent Bodies
I believe the current obtuse angle described by Vesta and the visible moons of Jupiter correctly reflects the status of the sender of these repeated emails to the Meteorite List. That is, after several attempts to arouse interest in looking out the window, so to speak, I've gotten ZERO, zip, nadda, zilch responses to indicate even an ioda of vague interest. Forgive me for assuming that some collectors of these treasures might, like me, care to visualize, I mean really see, one of the most popular targets of our interest as collectors. Next time you pick up one of those pricey diogenites or eucrites you may regret not heeding the call to take advantage of one of the easiest opportunites to acquire this elusive celestial target. As a New Englander the week has been unsually cooperative with crystal clear skies night after night. Happy Trails to all Jerry Flaherty __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Sale-Ad: Auckland Meteorite Set
Ending in two hours on ebay. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=230165448057ssPageName=STRK:MESE:ITih=013 T. Webb Luggage? GPS? Comic books? Check out fitting gifts for grads at Yahoo! Search http://search.yahoo.com/search?fr=oni_on_mailp=graduation+giftscs=bz __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Parent Bodies
On Thu, 30 Aug 2007 19:57:25 -0400, you wrote: That is, after several attempts to arouse interest in looking out the window, so to speak, I've gotten ZERO, zip, nadda, zilch responses to indicate even an ioda of vague interest. Speaking for myself, I have no good telescope (and only decent binoculars and no good sky for viewing (too much light pollution). So it is only about as interesting as reading about solar eclipses that happen in some other part of the world-- interesting, but it doesn't apply to me. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin,
On Thu, 30 Aug 2007 19:46:49 -0400, you wrote: There is such a thing as a bullion coin and although it is usually reserved for precious metals they can be made of any type of metal. Even if they are made of gold you can't spend one at Wal-Mart but they are called coins Actually, I think that the correct term is round: http://www.google.com/search?num=100hl=ensafe=offq=%22bullion+round%22 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Parent Bodies
Sorry, it's a RIGHT angle tonight!! Jerry Flaherty __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: NEW meteorite coin,
Google Bullion Coin and you will find a lot of web sites that sell them. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] SALE: NWAs/ Diogenite/Bassikounou
After the June shows I owe way to many moroccans way to much money so I have to start rivving up my meteorite sales. New Unclassified NWA sale here: http://www.meteoriteshop.com/metsale/ws-sale5.html Bassikounou sale here: http://www.meteoriteshop.com/metsale/Bassikounou.html Recycled but price reduced Diogenite website here: http://www.meteoriteshop.com/metsale/diogenite.html These will get linked to my website next week but 20% discount this weekend on anything of interest. In addition I have 200 more meteorites on my website www.meteoriteshop.com and over 100 on ebay using my ebay id AMUNRE. If anything there is of interest let me know and maybe we can work out a deal. Sincerely DEAN www.meteoriteshop.com Pinpoint customers who are looking for what you sell. http://searchmarketing.yahoo.com/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] 1cm scale cube available
In a message dated 8/25/2007 3:34:33 A.M. Mountain Daylight Time, [EMAIL PROTECTED] writes: The cubes I promised a month ago came back from the anodizer on Thursday. The letters are being filled with enamel today. They will be ready for shipping on Monday. I'll email pictures to those that are interested. I got my Drake Centimeter Scale Cube today! I know it's only a cm cube but it is a work of art. The best scale cube made. Drake even included a write up on it's correct usage. I don't know how many he has made. I think he still has some available. Thanks Drake! Tom ** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin,
On Thu, 30 Aug 2007 21:13:26 -0400, you wrote: Google Bullion Coin and you will find a lot of web sites that sell them. Not trying to harm Mike's sales (you'll want it if you want it no matter what you call it) but using the word coin for bullion and for medals is not correct. It is a very common incorrect term (even from companies) but still incorrect. Just like people calling meteors meteorites. We meteorite people know that the term is incorrect, but most people don't. http://coins.about.com/od/coinsglossary/g/coin.htm Definition: A coin, from the purely numismatic standpoint, is a metallic object, usually round or roundish in shape, which was created by a sovereign entity for the purpose of maintaining a circulating currency. Although the properly accepted distinction between what is a coin, and what is not a coin, depends on whether it was intended for circulation as money, it is generally accepted that special collector versions of these same circulating issues, called proofs may also be called coins. However, if the object was not issued in a form meant to circulate as money, the correct term for it is round, even if it is issued as a proof strike. http://coins.about.com/od/coinsglossary/g/round.htm Definition: A round is a precious metal disk usually issued by a private entity and not intended to circulate as money, and which is stamped or struck with images or devices, and sold to collectors and investors as a collectible. Rounds look very similar to actual coins, and it is common to see the term coin used incorrectly where round is really the proper term. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NEW meteorite coin,
..And finaly we have a great new topic on the list since months !!! On Thu, 30 Aug 2007 21:13:26 -0400, you wrote: Google Bullion Coin and you will find a lot of web sites that sell them. Not trying to harm Mike's sales (you'll want it if you want it no matter what you call it) but using the word coin for bullion and for medals is not correct. It is a very common incorrect term (even from companies) but still incorrect. Just like people calling meteors meteorites. We meteorite people know that the term is incorrect, but most people don't. http://coins.about.com/od/coinsglossary/g/coin.htm Definition: A coin, from the purely numismatic standpoint, is a metallic object, usually round or roundish in shape, which was created by a sovereign entity for the purpose of maintaining a circulating currency. Although the properly accepted distinction between what is a coin, and what is not a coin, depends on whether it was intended for circulation as money, it is generally accepted that special collector versions of these same circulating issues, called proofs may also be called coins. However, if the object was not issued in a form meant to circulate as money, the correct term for it is round, even if it is issued as a proof strike. http://coins.about.com/od/coinsglossary/g/round.htm Definition: A round is a precious metal disk usually issued by a private entity and not intended to circulate as money, and which is stamped or struck with images or devices, and sold to collectors and investors as a collectible. Rounds look very similar to actual coins, and it is common to see the term coin used incorrectly where round is really the proper term. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] SALE: NWAs/Bassikounou/Diogenite
After the June shows I owe way to many Moroccans way to much money right now so I have to have some sales. More sales to come soon. See here for some new unclassified NWAs http://www.meteoriteshop.com/metsale/ws-sale5.html Here is my Bassikounou webpage http://www.meteoriteshop.com/metsale/Bassikounou.html Here is my (Recycled but reduced price) Diogenite site http://www.meteoriteshop.com/metsale/diogenite.html This will all get updated on my website next week but a 20% discount on anything of interest this weekend. I also have a couple hundred other meteorites on my website www.meteoriteshop.com and a hundred or more on ebay with my user id AMUNRE. If you see anything there of interest let me know and maybe we can work out a deal. Sincerely DEAN www.meteoriteshop.com Building a website is a piece of cake. Yahoo! Small Business gives you all the tools to get online. http://smallbusiness.yahoo.com/webhosting __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks From Space Picture of the Day - August 31, 2007
http://www.spacerocksinc.com/August_31_2007.html _ ** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
