Re: [meteorite-list] Searching for meteorites beware the attraction
Greetings, The article is a little misleading. They show a photo of a sporadic meteor or possibly a meteor that is part of a shower. Then state it falls to Earth, which most burn up in the atmosphere. Then suggest meteorite hunters go and hunt for it. Most meteorite producing events are usually much brighter than that. Writers of such articles should mention that meteor showers and sporadic meteors are usually from cometary events. Meteorite producing events are from asteroid collision events that contain enough material to reach the ground before they burn up. Of course there is more to it than that. Best! --AL Mitterling Mitterling Meteorites On Wed, May 24, 2023 at 9:23 AM Leonard David via Meteorite-list < meteorite-list@meteoritecentral.com> wrote: > Leonard David Inside Outer Space FYI: > > If you’re out searching for meteorites beware the attraction > > https://cosmosmagazine.com/people/citizenscience/meteorites-magnetism/ > __ > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > https://pairlist2.pair.net/mailman/listinfo/meteorite-list > __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist2.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for meteorites beware the attraction
Leonard David Inside Outer Space FYI: If you’re out searching for meteorites beware the attraction https://cosmosmagazine.com/people/citizenscience/meteorites-magnetism/__ Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist2.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching
Hi All, Is there anyone out there that might have saved a workable, emailable link to a screensaver that Meteorite Times posted about 2010. It is of Tom Phillips' thin section pictures. Paul previously said that he doesn't seem to have saved that post. It is beautiful and it would be nice to share with others. Thanks for any help. John __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Meteorites in Lake Michigan
Teen scientists went looking for meteorites in Lake Michigan. They made a different kind of discovery. Washington Post https://www.washingtonpost.com/science/2018/10/18/teen-scientists-went-looking-meteorites-great-lakes-they-found-another-type-alien/ http://www.chicagotribune.com/news/nationworld/science/ct-lake-michigan-meteorites-20181018-story.html Yours, Paul H. __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for Iron Creek meteorite photo
Hi: I may have a shot of it but if not I hope to be going there some time. even soon and want to get a shot for myself. I will certainly share it with you. Do you have a specimen of Iron Creek? I have a little 2 gram piece and many years ago when I didn't know anything, I went out hunting for it. Cheers. Murray Paulson Sent from my Samsung Galaxy smartphone. Original message From: Bigjohn Shea via Meteorite-list <meteorite-list@meteoritecentral.com> Date: 2016-06-04 12:34 PM (GMT-07:00) To: metlist <meteorite-list@meteoritecentral.com> Subject: [meteorite-list] Searching for Iron Creek meteorite photo Hello Members, Hope you are all well this weekend. If anyone out there has a good quality photo of the Iron Creek meteorite situated at its display in the Provincial Museum of Alberta, and would not mind sharing it with me, please contact me directly at the email below. I’ll give you further details about why at that time. bigjohns...@gmail.com Thank you all for your time. Cheers, John A. Shea MD IMCA 3295 __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Iron Creek meteorite photo
Hello Members, Hope you are all well this weekend. If anyone out there has a good quality photo of the Iron Creek meteorite situated at its display in the Provincial Museum of Alberta, and would not mind sharing it with me, please contact me directly at the email below. I’ll give you further details about why at that time. bigjohns...@gmail.com Thank you all for your time. Cheers, John A. Shea MD IMCA 3295 __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] searching for Kosice meteorite article
Hello, I'm searching for the PDF article of the Meteoritics Planetary Science named The Kosice meteorite fall : atmospheric trajectory, fragmentation and orbit. If some has it, could you send it to me by email ? Thanks a lot, Pierre-Marie Pelé Meteor-Center Météorites : achat - vente - expertise - expéditions - recherche http://www.meteor-center.com IMCA 3360 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching radar data for 10/19/2011 Nebraska meteor
Nothing on the Hastings radar either: http://ftp3.ncdc.noaa.gov/pub/has/HAS002324634/ --Rob -Original Message- From: Matson, Robert D. Sent: Thursday, October 20, 2011 12:25 PM To: meteorite-list@meteoritecentral.com Subject: Link for North Platte, Nebraska radar data If anyone wants the North Platte, Nebraska, radar data for the time in question, you can download it from this link: http://ftp3.ncdc.noaa.gov/pub/has/HAS002324615/ Don't see anything obvious in it. Checking Hastings, NE data next... --Rob __ 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] searching for the correct terminology
You will probably think I am a bit off the latch with this question but here goes anyway... In the world of meteorite terminology, is there a term or word which describes the loss of fusion crust (by forces of nature) from stony meteorites. 'Spalling' possibly? The loss of crust, part or all, seems to be a rather common occurrence especially for some of the more friable stonys. With the crust gone, the stone is 'denuded'? Mike in CO __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
On Fri, 11 Sep 2009 11:04:43 -0600, you wrote: You will probably think I am a bit off the latch with this question but here goes anyway... In the world of meteorite terminology, is there a term or word which describes the loss of fusion crust (by forces of nature) from stony meteorites. 'Spalling' possibly? The Wouldn't it simply be weathering? http://en.wikipedia.org/wiki/Weathering Spallation is an unrelated thing: http://en.wikipedia.org/wiki/Spallation __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
On Fri, 11 Sep 2009 13:12:42 -0500, you wrote: Spallation is an unrelated thing: http://en.wikipedia.org/wiki/Spallation Correction-- I see that there is a different definition of spalling that can be related to weathering: http://en.wikipedia.org/wiki/Spalling __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
It depends on the respective process that removed the crust. If for example abrasion through wind born sand is responsible, then the term is corrasion. Svend www.meteorite-recon.com -- You will probably think I am a bit off the latch with this question but here goes anyway... In the world of meteorite terminology, is there a term or word which describes the loss of fusion crust (by forces of nature) from stony meteorites. 'Spalling' possibly? The loss of crust, part or all, seems to be a rather common occurrence especially for some of the more friable stonys. With the crust gone, the stone is 'denuded'? Mike in CO __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list -- www.meteorite-recon.com __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
Mike in CO writes: You will probably think I am a bit off the latch with this question but here goes anyway... In the world of meteorite terminology, is there a term or word which describes the loss of fusion crust (by forces of nature) from stony meteorites. 'Spalling' possibly? The loss of crust, part or all, seems to be a rather common occurrence especially for some of the more friable stonys. With the crust gone, the stone is 'denuded'? Hi Mike and List, here are some examples: ALHA77294 (H5): Polygonally fractured, dull, brownish black fusion crust, approximately 1 mm thick, covers all surfaces of this meteorite (~13.5 x 9.0 x 6.0 cm), with the exception of the edges, which appear to have been s p a l l e d. ALHA78040 (AEUC): The crust has been removed from the edges by s p a l l a t i o n and has been preferentially weathered away on the surfaces in small circular areas. ALHA78132 (AEUC): The crust has been s p a l l e d or chipped in some areas ... ALHA79022 (L3.7-4): The areas devoid of fusion crust appear to have been s p a l l e d off or preferentially plucked off because they occur along ridges. Bagdad (IIIAB): Most of the fusion crust has s p a l l e d off due to terrestrial corrosion (Buchwald)... Best wishes, Bernd __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
For meteorites exposed a long time in deserts, one of the processes is ablation or abrasion by the wind - sand-blasting. Omanian lunars seldom have fusion crusts. Look at the Dhofars 461 and 465 here: http://meteorites.wustl.edu/lunar/stones/dhofar0026.htm If you handed those rocks to a geologist, she'd say, on the basis of the 3-sided shapes, those are ventifacts, not, those are meteorites. Omanian meteorites have been getting smaller with time! http://en.wikipedia.org/wiki/Ventifact Scientists who've studied the Dar al Gani field in Libya say that one of the reasons for the preservation is that the wind-blown sand is from carbonate rock (soft), not quartz (hard). The meteorites in the Dhofar photos above appear to be sitting on carbonate desert pavements, but I have to conclude that there's a source of quartz sand somewhere. Even in Antarctica, meteorite fusion crust is lost to wind ablation, even though there's little sand in the wind. All meteorite collection places in Antarctica are places where the katabatic winds are blowing so hard that snow does not accumulate and the ice is being ablated by the wind at the rate of a few inches per year. At 12:04 2009-09-11 Friday, you wrote: You will probably think I am a bit off the latch with this question but here goes anyway... In the world of meteorite terminology, is there a term or word which describes the loss of fusion crust (by forces of nature) from stony meteorites. 'Spalling' possibly? The loss of crust, part or all, seems to be a rather common occurrence especially for some of the more friable stonys. With the crust gone, the stone is 'denuded'? Mike in CO Randy Korotev Saint Louis, MO koro...@wustl.edu __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
Spallation might be a specific way that the fusion crust could be removed (such as by tumbling in a stream), but it isn't very general. I'd use the same term that geologists use for any sort of surface modified by natural forces: weathering. If there's something unusual about the mechanism, you can always add more detail, such as the fusion crust has been selectively chipped from its substrate by weathering processes. For a meteorite that no longer has a fusion crust, I think the clearest description would be shows no remaining fusion crust. Chris * Chris L Peterson Cloudbait Observatory http://www.cloudbait.com - Original Message - From: Michael Murray mmur...@montrose.net To: Meteorite-list@meteoritecentral.com Sent: Friday, September 11, 2009 11:04 AM Subject: [meteorite-list] searching for the correct terminology You will probably think I am a bit off the latch with this question but here goes anyway... In the world of meteorite terminology, is there a term or word which describes the loss of fusion crust (by forces of nature) from stony meteorites. 'Spalling' possibly? The loss of crust, part or all, seems to be a rather common occurrence especially for some of the more friable stonys. With the crust gone, the stone is 'denuded'? Mike in CO __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
Hi Mike Darren, Svend, Bernd, List, Great question and answers. Still seems a little strong of a term for a flaky Tatahouine, do you think? What about a term encompassing the emotion of finding a completely ripped meteorite? Oh! Shucks!, Doug PS ... denuded matrix would sound perfect to me, or stripped meteorite (the universe is our oyster) -Original Message- From: bernd.pa...@paulinet.de To: Meteorite-list@meteoritecentral.com Sent: Fri, Sep 11, 2009 12:22 pm Subject: Re: [meteorite-list] searching for the correct terminology Mike in CO writes: You will probably think I am a bit off the latch with this question but here goes anyway... In the world of meteorite terminology, is there a term or word which describes the loss of fusion crust (by forces of nature) from stony meteorites. 'Spalling' possibly? The loss of crust, part or all, seems to be a rather common occurrence especially for some of the more friable stonys. With the crust gone, the stone is 'denuded'? Hi Mike and List, here are some examples: ALHA77294 (H5): Polygonally fractured, dull, brownish black fusion crust, approximately 1 mm thick, covers all surfaces of this meteorite (~13.5 x 9.0 x 6.0 cm), with the exception of the edges, which appear to have been s p a l l e d. ALHA78040 (AEUC): The crust has been removed from the edges by s p a l l a t i o n and has been preferentially weathered away on the surfaces in small circular areas. ALHA78132 (AEUC): The crust has been s p a l l e d or chipped in some areas ... ALHA79022 (L3.7-4): The areas devoid of fusion crust appear to have been s p a l l e d off or preferentially plucked off because they occur along ridges. Bagdad (IIIAB): Most of the fusion crust has s p a l l e d off due to terrestrial corrosion (Buchwald)... Best wishes, Bernd __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
On Fri, 11 Sep 2009 14:14:40 -0400, you wrote: PS ... denuded matrix would sound perfect to me, or stripped meteorite Ah, but wouldn't the prefix de- make the word mean to make no longer nuded? So an eroded meteorite should be said to have a nuded matrix... Okay, kidding. I know it is a real word (maybe different etymology for the de- prefix? Is this a job for Webbman?) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
Hi, Doug, List, Yes, it SHOULD mean that, but when was English ever completely logical? Here; de- in denuded seems to mean completely, thoroughly nude, as in stripped. Oddly enough in earlier English (middle English) there was a prefix to be stuck on a verb to emphasize the strength of the verb's action. To- was added. I have seem several instances of to-torn used to mean not just torn but ripped to shreds. Earliest English (Anglo-Saxon) had many verb prefixes. Modern English retains this love of sticking assorted adjectives, adverbs, and prepositions onto helpless verbs. Why are you bewitched when just being witched would seem to be enough? Why fix the car up? Isn't it good enough just to fix it? I mean, would you put up with that? Or, are there things up with which you would not put? They're called phrasal verbs: http://www.chass.utoronto.ca/~cpercy/courses/6361lamont.html As for spalling, my ancient battered geological dictionary defines spalling as: the chipping or fracturing with an upward heaving, of rock caused by a compressional wave at a free surface. I think of flat flakes when I think of spalling (which is not that often). Sterling K. Webb - - Original Message - From: Darren Garrison cyna...@charter.net To: Mexicodoug mexicod...@aim.com Cc: Meteorite-list@meteoritecentral.com Sent: Friday, September 11, 2009 2:42 PM Subject: Re: [meteorite-list] searching for the correct terminology On Fri, 11 Sep 2009 14:14:40 -0400, you wrote: PS ... denuded matrix would sound perfect to me, or stripped meteorite Ah, but wouldn't the prefix de- make the word mean to make no longer nuded? So an eroded meteorite should be said to have a nuded matrix... Okay, kidding. I know it is a real word (maybe different etymology for the de- prefix? Is this a job for Webbman?) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] searching for the correct terminology
Hi Darren, So an eroded meteorite should be said to have a nuded matrix... Not any more than an open window should be said to be defenestrated :) It would just be nude matrix if you wanted to say it that way, as denude is the verb; nude is the adjective. Webbman would probably say de- can mean to liberate, as in deliver. I just mentioned denuded matrix to contrast with the original question of calling it a denuded meteorite, since de-crusting meteorites leaves the nude matrix, not the nude meteorite, as meteoroids are already denuded by ablation IMO. English has lots of great ways to express simple ideas; also thought Randy's and Chris's posts were also superb technical answers. I still think calling them whatever makes sense at the time: sheared, shucked, ripped or stripped for want of a simple adjective on a hot day in the field has its place - not in the literature (though crust can look like paint and paint is stripped)... but under many popular circumstances as are also used on the List. Time to go back and look at some new chondrules - or should we say freshly shucked Pearls from Space - Best wishes, Doug PS, Eroded doesn't do it for me, as eroded meteorites can have plenty of crust. -Original Message- From: Darren Garrison cyna...@charter.net To: Mexicodoug mexicod...@aim.com Cc: Meteorite-list@meteoritecentral.com Sent: Fri, Sep 11, 2009 2:42 pm Subject: Re: [meteorite-list] searching for the correct terminology On Fri, 11 Sep 2009 14:14:40 -0400, you wrote: PS ... denuded matrix would sound perfect to me, or stripped meteorite Ah, but wouldn't the prefix de- make the word mean to make no longer nuded? So an eroded meteorite should be said to have a nuded matrix... Okay, kidding. I know it is a real word (maybe different etymology for the de- prefix? Is this a job for Webbman?) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Meteorites in the Deserts of Oman
Searching for Meteorites in the Deserts of Oman By Simon Mitton, Astrobiology Magazine, May 17, 2009 http://www.astrobio.net/news/index.php?name=Newsfile=articlesid=3139 Yours, Paul H. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for Meteorites in the Deserts of Oman
Thanks for the many links Paul. :) On 5/21/09, Paul bristo...@yahoo.com wrote: Searching for Meteorites in the Deserts of Oman By Simon Mitton, Astrobiology Magazine, May 17, 2009 http://www.astrobio.net/news/index.php?name=Newsfile=articlesid=3139 Yours, Paul H. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list -- . Michael Gilmer (Louisiana, USA) Member of the Meteoritical Society. Member of the Bayou Region Stargazers Network. Websites - http://www.galactic-stone.com and http://www.glassthrower.com .. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for meteorites in Antartica
Hello Everyone, A meteorite collector on another forum discovered this. He is not a member of this list so credit goes to him. Here is a video of Dr. Monika Kress discussing searching for meteorites in Antarctica as part of ANSMET. http://www.youtube.com/watch?v=pHcCLWZuJbc BTW, in case you want to save the video to your hard drive and don't know how, it is an .flv file, a common internet video format. After the video plays, in Windows XP go to tools/internet connections/browserhistory-setting/view files. Sort by size and near the top you will find a large 64 k file. Sometimes the names are clear and sometimes not. Copy and past this file where you want it. You may need to rename the extension to .flv. The flv player can be downloaded from many places, one of which is here: http://www.download.com/FLV-Player/3000-2139_4-10467081.html Take care -Walter Branch __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for Earthites on the Moon
More than a little ambitious if you ask me. This is assuming that any evidence isn't vapourised by the impact of such earthites hitting at a minimum of 2.?km/s and also assuming that such unmolested evidence is present wherever they intend to drill for it. They'd be better off waiting until the pig migration season and asking one for it's opinion as it flies past. --- Darren Garrison [EMAIL PROTECTED] wrote: http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/08/26/scimeteror12.xml Moon meteorites may hold clue to life on Earth By Richard Gray, Science Correspondent, Sunday Telegraph Last Updated: 12:01am BST 26/08/2007 Scientists are planning a mission to drill beneath the Moon's surface for buried meteorites that may hold clues to how life began on Earth. Sick sense of humor? Visit Yahoo! TV's Comedy with an Edge to see what's on, when. http://tv.yahoo.com/collections/222 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for Earthites on the Moon
Hi, Rob, Darren, Lunar escape velocity is 2368 m/s, and each gram that falls to the Moon's surface carries a minimum kinetic energy of 2803.7 joules or 2.8 x 10^8 ergs. The energy required to melt (from room termperature) 1 gram of Earth rock is about 1.2 x 10^10 ergs. Vaporizing it takes more energy still. The energy required to crush it to a fine powder (bursting strength) is about 1/10 that amount. So an Earth rock appears to be 43 times stronger than is necessary to survive the impact unpowdered. However, that is a very small margin of safety when you consider that the Earth rock will have just been recently subjected to a much bigger impact knocking it off the Earth and will have been considerably weakened by that experience! On the other hand, conventional meteorites, structurally weak to begin with, are approaching the Earth-Moon system are 5,000 m/s to 15,000 m/s in their orbits. They will strike with 100 to 500 times more energy than the minimum fall energy. The biggest meteorite ever found on the Moon, HADLEY RILLE, is a 1 millimeter fragment of EH chondrite. Virtually all conventional meteorites will impact with more than enough energy to powder them (or worse). HADLEY RILLE was just lucky... and tough. pig migration season... asking one for it's opinion as it flies past... Not scientific enough. Possibly we could observe the flight of the pigs and from the number of pigs shot down by meteorites, deduce the lunar meteorite influx to see if this project is worthwhile? With a suitably sensitive 10,000 meter telescope in orbit, we could probably even deduce the kinetic energy of each meteorite by observing the damage to the pig in detail. [Insert artist's rendition of perforated pig falling into death spiral with lots of red splatter.] Sterling K. Webb - - Original Message - From: Rob McCafferty [EMAIL PROTECTED] To: [EMAIL PROTECTED]; meteorite-list@meteoritecentral.com Sent: Monday, August 27, 2007 5:20 PM Subject: Re: [meteorite-list] Searching for Earthites on the Moon More than a little ambitious if you ask me. This is assuming that any evidence isn't vapourised by the impact of such earthites hitting at a minimum of 2.?km/s and also assuming that such unmolested evidence is present wherever they intend to drill for it. They'd be better off waiting until the pig migration season and asking one for it's opinion as it flies past. --- Darren Garrison [EMAIL PROTECTED] wrote: http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/08/26/scimeteror12.xml Moon meteorites may hold clue to life on Earth By Richard Gray, Science Correspondent, Sunday Telegraph Last Updated: 12:01am BST 26/08/2007 Scientists are planning a mission to drill beneath the Moon's surface for buried meteorites that may hold clues to how life began on Earth. Sick sense of humor? Visit Yahoo! TV's Comedy with an Edge to see what's on, when. http://tv.yahoo.com/collections/222 __ 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] Searching for Earthites on the Moon
http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/08/26/scimeteror12.xml Moon meteorites may hold clue to life on Earth By Richard Gray, Science Correspondent, Sunday Telegraph Last Updated: 12:01am BST 26/08/2007 Scientists are planning a mission to drill beneath the Moon's surface for buried meteorites that may hold clues to how life began on Earth. British space experts are to reveal plans next month to send robotic drills to the Moon to collect cores of lunar rock. They believe that beneath the Moon's dust-covered surface they will find the remains of meteorites that date back to the early history of the earth. As the Moon is geologically inactive, the scientists hope to find rocks that would have been destroyed long ago by volcanoes and earthquakes on our own planet. They claim it will be possible to find a record of meteorites dating back more than 3.8 billion years, around the time that life is thought to have begun on Earth. These preserved meteorites may hold evidence for theories that water and even the precursors of life on our own planet were carried here on asteroids. Scientists also hope they will find fragments of rock from Earth itself in the lunar crust, knocked off by meteorite bombardments, giving an insight into the planet's early history. The European Space Agency will outline its plans to land the equipment on the Moon next month at the European Planetary Science Congress in Germany. British scientists and oil industry executives met early this month to discuss a similar mission. The space technology company LogicaCMG, which organised the meeting, will also reveal the outcome of those talks next month. Stuart Martin, the director of space and satellite communications at LogicaCMG, said: Drilling on the Moon presents some unique challenges Anchoring a rig to the surface, which is covered in a couple of yards of dust, is also something that will need to be solved. He added: The oil industry is keen to help as it is searching for oil in increasingly extreme environments so it wants drilling rigs that can be controlled remotely. Scientists expect the first drilling mission to use a lightweight rig, powered by solar panels, which will drive a two-inch-wide drill into the surface. Cores obtained from the drill will be analysed on board and the results beamed back to earth. The ESA also hopes to use small, 400lb rockets to fire samples back to the earth to be analysed. While Dr Bernard Foing, the ESA's senior research co-ordinator, said there was a possibility we will find prebiotic forms of life, Dr Ian Crawford, a planetary scientist at London University's Birkbeck College, added that drilling on the Moon would also provide valuable training for exploring other planets. (When found, they will be auctioned off alongside walrus wangs): http://www.knbc.com/news/13979613/detail.html __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Meteorites in Canada
http://mjtimes.sk.ca/index.cfm?sid=48281sc=15 Searching for meteorites ALISON SEBASTIAN The Moose Jaw Times Herald (Canada) July 29, 2007 An identified meteorite is a find indeed. They can sell anywhere from a few dollars a gram to $1,500 a gram, explained Nathan Seon as he held what looked like a medium size, odd-shaped rock in his hand. Seon is a 2007 Prairie Meteorite Searcher. The University of Regina geology student has travelled to numerous communities in southwestern Saskatchewan, Manitoba and Alberta to educate and help people identify meteorites. On Aug. 4 from 9 a.m. to 5 p.m., Seon will be at the Western Development Museum to identify potential meteorites and answer any questions local people might have. The target group is farmers, explained Seon, because they are most likely to come across a meteorite in their fields, explained Seon. A meteorite is a piece of rock and iron that falls to earth from out space. Some characteristics of meteorites are that they are highly magnetic and heavy. Often farmers will bring in rocks that have been in the family for years to see if the stories passed down about the stone being a meteorite are true. One thing about this that is very different from heritage items is these (meteorites) actually belong to the landowner, explained Seon. An option landowners have is to donate the meteorite to the National Meteorite Collection. If such a donation is made, the landowner is eligible for a tax credit from the federal government for the value of the rock, said Seon. Scientists from every branch can benefit from a meteorite find, said Seon. The Canadian Space Agency (CSA) is a sponsor of the the Prairie Meteorite Search, a partnership between the University of Calgary, Regina and Western Ontario. The CSA and NASA both had in interest in the Tagish lake meteorite that fell in 2000. The meteorite is now part of the collection at the University of Alberta and part of it is also housed at the Johnson Space Centre. May 25 was the last time a meteorite entered the atmosphere. According to Seon, some of the meteorite fell in the area of Red Water, Alta. Seon has travelled to Estevan and Weyburn. He will be making stops at the museums in Swift Current Aug. 3 from 10 a.m. to 5 p.m., Shaunavon Aug. 10, Gravelbourg Aug. 7 and Assiniboia Aug. 6. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Meteorites with Success
Dear List, A topic for discussion, perhaps could be meteorite hunting; for example how, where, when, why and the dangers and difficulties involved. Strategies for finding such as random searching vs systematic searching, metal detector hunting, searching from a vehicle, walking, binoculars, time of day and season all could be discussed. Perhaps some members with personal experience would share their advice. Best Regards, Dirk Ross...Tokyo __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for the Grandest Asteroid Tour
http://www.jpl.nasa.gov/news/features.cfm?feature=1335 Searching for the Grandest Asteroid Tour Jet Propulsion Laboratory April 05, 2007 Asteroids are Earth's closest celestial neighbors, sometimes passing closer to Earth than even the Moon. And yet, to date, only two spacecraft have ever remained in proximity to one of these bodies. Last month, orbit mechanics experts from around the world met to discuss methods for finding the best possible spacecraft trajectory, or flight path, for visiting a sequence of asteroids. The gathering was part of the second Global Trajectory Optimisation Competition, organized by JPL. The idea of an asteroid grand tour is a celestial analogue to the Grand Tour embarked upon by Renaissance travelers seeking to further their cultural knowledge of Europe. Just as the traveler had to judge carefully which cities to visit based on his or her available resources, so must designers of a spacecraft flight path contend with limited resources and constraints. Such restrictions include the rocket's ability to launch the spacecraft into space, the strength of the spacecraft's thruster, orbital positions of the various asteroids over time, and the spacecraft's longevity. Determining the best possible trajectory within these constraints, out of the many good ones, is not a trivial matter. It requires a big-picture, or global, view of all the possibilities, that is, it requires global optimization. There are many possible approaches, each with its own strengths and weaknesses. The inspiration for this problem was the need to study closely different types of asteroids. By visiting a member of each of four different asteroid groups, a spacecraft would provide insights into their chemical composition, their structural characteristics, how they formed, and which might be suitable for future space mining operations. Such insights would also be critical should the need ever arise to deflect an asteroid that is found to be on an Earth-threatening trajectory. The problem posed by JPL's Outer Planets Mission Analysis Group for the second competition was to design a flight path for visiting four asteroids-- one from each group -- in the shortest amount of flight time and with the least amount of propellant. With almost 1,000 asteroids to choose from, more than 41 billion asteroid sequences could be considered. That's far too many to study individually in the short time allocated for the competition, even with the fastest computers, largest computer clusters and best algorithms. Fourteen teams - from Europe, Russia, China and the U.S. - sought the elusive best possible trajectory. Their search took place over a period of four weeks late last year, at the end of which they submitted their top solution to be ranked against those of the other teams. The winning trajectory was found by a team from the Polytechnic of Turin, Italy. Two professors, Lorenzo Casalino and Guido Colasurdo, along with Ph.D. student Matteo Rosa Sentinella and graduate student Francesco Cacciatore, successfully and quickly screened out billions of possible asteroid sequences to focus on the most practical ones. Their winning trajectory, involving visits of four different asteroids in just over nine years, was followed by trajectories from a Russian team (the Moscow Aviation Institute and the Khrunichev State Research and Production Space Center), and a team from the European Space Agency's Advanced Concepts Team. The workshop where the various teams convened for their discussions took place in Sedona, Ariz., in conjunction with the Space Flight Mechanics Meeting of the American Astronautical Society and the American Institute of Aeronautics and Astronautics. Did the competition yield the best possible trajectory? With such complexity, it is likely impossible to say, but an educated guess, and the insights gained by comparing the various teams' methods, would suggest that there is still some room for improvement. The Turin team, as winners of this year's competition, will now be organizing the Third Global Trajectory Optimisation Competition, where various teams will again have the opportunity to test their mettle in solving the most challenging problems currently faced by spacecraft trajectory designers. The Global Trajectory Optimisation Competition was instituted in 2005 by Dario Izzo of the European Space Agency's Advanced Concepts Team. As winners of the first competition, the JPL team organized this latest one, with support from NASA's In-Space Propulsion Program. For further information about asteroids and the Near-Earth Object Program, visit: http://neo.jpl.nasa.gov For further information about the Global Trajectory Optimisation Competition series, visit: http://www.esa.int/gsp/ACT/mad/op/GTOC/index.htm . Media contact: DC Agle 818-393-9011 __ Meteorite-list mailing list
Re: [meteorite-list] Searching information about old falls
Hi Pierre-MarieIt looks like similar subject matter to this book;Povenmire, Harold R. 2003 The Encyclopedia of Cosmic Close Encounters Pub by the author, New in paper wraps, 8vo, 165 pp. Describes known hits by meteorites with mostly man made objects. $20.00This is the listing from my website. :)Mike-- Mike JensenJensen Meteorites16730 E Ada PLAurora, CO 80017-3137303-337-4361IMCA 4264website: www.jensenmeteorites.com On 11/3/06, Pelé Pierre-Marie [EMAIL PROTECTED] wrote: Hello,I'm searching for old documents explaining thecircumstances of fall and find on several meteoritefalls.The List is longer so here's my listing if you want togive me detailed information on one fall or another : www.meteor-center.com/hammers.aspI'm starting a new book so I would be really happy ofyour help. Most curious members will understand thesubject of the book by looking at the listing ;-) Best regards,Pierre-Marie PELE___Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponseshttp://fr.answers.yahoo.com__ Meteorite-list mailing listMeteorite-list@meteoritecentral.comhttp://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] Searching information about old falls
Hello, I'm searching for old documents explaining the circumstances of fall and find on several meteorite falls. The List is longer so here's my listing if you want to give me detailed information on one fall or another : www.meteor-center.com/hammers.asp I'm starting a new book so I would be really happy of your help. Most curious members will understand the subject of the book by looking at the listing ;-) Best regards, Pierre-Marie PELE ___ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for a L'Aigle individual
Hello to the List, I'm searching for a small, complete, l'Aigle meteorite to buy. Weighing about 10-15 grams, with fusion crust. If you have one for sale, I should be interested. Best regards, Pierre-Marie PELE www.meteor-center.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Information on Mahuika Crater (New Zealand) and Any Associated Tektites
Dear Listmembers, I am looking for information, including citations for any published papers, about the age and origin of what has been called the Mahuika Crater, which is located off of the coast of New Zealand. Also, have tektites actually been found associated with it? Best Regards, Paul Louisiana __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for the book A Bibliography on Meteorites by H. Brown
Hello to the List, I'm searching for a book entitled A bibliography on Meteorites by Harrison Brown and published by The University of Chicago Press, Cambrige university Press, London 1953. If you have one for sale at a reasonable price, I would be very interested as I'm working on the 2nd edition of my book Meteorites de France and that Brown's book is full of bibliography of old french documents. Thanks in advance, Pierre-Marie PELE www.meteor-center.com ___ Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international. Téléchargez sur http://fr.messenger.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for old meteorite reports
Hello to the List, I'm searching for old documents about the french meteorites of Mornans, Chitenay, Esnandes, Laborel, Marmande. Does anyone have a copy of the following references ? 1. J.R. Gregory : Two new french meteorites, in Geol. Magazine, nr. 12, 1887 2. V. Hauer : Annalen des K.K. Naturhistorischen Hofmuseums, Wien, 1892 3. A. Brezina, Wiener Sammlung, 1895 I'm also searching the following old reports or books : 1. P.M. Partsch, Die Meteoriten, 1843 2. A. Brezina, Über neuere Meteoriten, 1893 3. Chitenay : M. Christophe Michel-Levy, Meteoritics, nr 13, 1978 4. R.P. Greg, Philosophical Magazine, 1862 5. O. Buchner, Meteoriten, 1863 Thanks in advance, Best regards, Pierre-Marie PELE ___ Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger Téléchargez cette version sur http://fr.messenger.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for unusual meteorite stories, can you help?
Dear list, I am compiling a catalogue of tall meteorite tales, everything from meteorites which come with messages inscribed on them to rocks from the sky that open and reveal Martian mummies inside, or toads! I have also collected articles claiming aerolites are skulls and that Earth's fossils were moon creatures caught up in lunar whirlwinds... If anyone can has come across any tales of this kind I would very much appreciate a reply at [EMAIL PROTECTED] I'm currently changing my list address from Yahoo to Gmail but it takes a couple of days. Many thanks, Chris Aubeck c/Mayor 51, 3 B, Madrid 28013 Spain ___ How much free photo storage do you get? Store your holiday snaps for FREE with Yahoo! Photos http://uk.photos.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for unusual meteorite stories, can you help?
Hi Chris, There are plenty of tall tales in when meteorites are involved. In particular, the Tsarev meteorite might be one to consider. There used to be a good page online, but I cannot get it to work right now. In the November 1999 issue of Meteorite magazine, Roy Gallant wrote about in his story The Fiery Snake of Tsarev. I have some info from the article in my Accretion Desk article that can be found at: http://www.meteoritetimes.com/Back_Links/2005/march/Accretion_Desk.htm Also, there are wonderful stories embedded within Burke's book Cosmic Debris. Cheers, Martin --- chris aubeck [EMAIL PROTECTED] wrote: Dear list, I am compiling a catalogue of tall meteorite tales, everything from meteorites which come with messages inscribed on them to rocks from the sky that open and reveal Martian mummies inside, or toads! I have also collected articles claiming aerolites are skulls and that Earth's fossils were moon creatures caught up in lunar whirlwinds... If anyone can has come across any tales of this kind I would very much appreciate a reply at [EMAIL PROTECTED] I'm currently changing my list address from Yahoo to Gmail but it takes a couple of days. Many thanks, Chris Aubeck c/Mayor 51, 3 B, Madrid 28013 Spain ___ How much free photo storage do you get? Store your holiday snaps for FREE with Yahoo! Photos http://uk.photos.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for space rocks
http://www.mayerthorpefreelancer.com/story.php?id=173838 Dana Hawn Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Fabien Kuntz email
Hello to the List, Salut Fabien, si tu lis ce message, peux-tu me contacter sur mon email perso ? Hello, If any of you know the email address of Fabien Kuntz (meteorite hunter), could you send it to me ? Best regards, Pierre-Marie Pelé www.meteor-center.com IMCA 3360 Découvrez le nouveau Yahoo! Mail : 250 Mo d'espace de stockage pour vos mails ! Créez votre Yahoo! Mail sur http://fr.mail.yahoo.com/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Erich Haiderer
Hello to the List, I' m sending messages to Erich Haiderer for more than a week but I've got no answer. Does anybody know if he's on a trip or on vacation ? Thanks, Pierre-Marie Pele www.meteor-center.com Vous manquez despace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for more of Nakhla
So what's stopping you (or anyone else) from doing just that? Nothing at all. If anyone does find new Nakhla, let us know. The recovery of more Martian meteorites is always welcome. Ron Baalke __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for more of Nakhla
Bob Haag went to Nakhla a few years back, and according to him, the area where the meteorite fell is now underneath bustling city. The growth if you can imagine Egypt since 1911 is phenominal. There is NO CHANCE to recover more Nakhla. Mike Farmer - Original Message - From: David Freeman [EMAIL PROTECTED] To: Ron Baalke [EMAIL PROTECTED] Cc: Meteorite Mailing List [EMAIL PROTECTED] Sent: Friday, August 09, 2002 2:37 PM Subject: Re: [meteorite-list] Searching for more of Nakhla Dear Ron, Robert, and List; I surely would like to see Robert H. and Mike F. swoop on over and find another ton.would make my day! Best Friday for meteorites! Dave F. Ron Baalke wrote: So what's stopping you (or anyone else) from doing just that? Nothing at all. If anyone does find new Nakhla, let us know. The recovery of more Martian meteorites is always welcome. Ron Baalke __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for more of Nakhla
In a message dated 8/9/2002 1:44:05 PM Mountain Daylight Time, [EMAIL PROTECTED] writes: A number of today's dealers won't even blink before flying to Morocco/Algeria to acquire specimens of a newly fallen LL6, so I find it curious that one or more of them don't follow up on a much more valuable Martian meteorite -- and a nahklite at that. Do the Egyptian export rules prohibit foreigners from removing meteorites from the country? Last time we discussed the Nakhla meteorite, I asked Alain Carion about it, since he goes to Egypt quite often. He told me that he had visited the area once several years ago and discovered that the strewnfield is gone. Literally. Because of the population explosion, Egypt is trying very hard to increase the size of the fertile areas. One method they have used is to remove about 50cm of top-soil over large areas in the delta and then spread that rich soil thinly over the desert. Apparently it works, I saw a lot of poverty but no starvation when I was there. But you might say that the size of the strewn field has increased dramatically! :-) Do you still want to go, Rob? And another thing: the Egyptian government is getting very leery of those foreigners who come explore their country. So far they are more worried about archaeological artifacts leaving undetected than strange rocks, but it could change. Anne Black IMCA #2356 www.IMPACTIKA.com e-mail: [EMAIL PROTECTED]
[meteorite-list] Searching for Meteorites
Hello List, As I am preparing for the spring lawn moving season I decided to combine my favorite hobby with the mundane chore of mowing the yard. I am going to attach magnets to the sides and front of my mower in hopes of finding a treasure (meteorite) in my yard. Any ideas or suggestions would be appreciated. Take Care, Jason Phillips Rocks From Heaven.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Searching for Meteorites, why not drive around!
Dear Jason, Anne, and Bob; Wouldn't it make more sence to pay someone to mow the lawn and spend the more valueable time ciferin' the square miles in size of the average strewnfield, calculate the number of strewnfields in the country, calculate how many miles of road one would have to drive down with a 7 foot magnetic bumper attached ... to cover that same amount of ground. I would much more rather ride around than mow the lawn. Besides, I only need a weed eater to mow my lawn, a magnet wouldn't work as good. Best, Dave F. Jason Phillips wrote: Hello List, As I am preparing for the spring lawn moving season I decided to combine my favorite hobby with the mundane chore of mowing the yard. I am going to attach magnets to the sides and front of my mower in hopes of finding a treasure (meteorite) in my yard. Any ideas or suggestions would be appreciated. Take Care, Jason Phillips Rocks From Heaven.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching for Meteorites
Hi, You may in for a great many magnetic mowing seasons! I'm quoting myself here (if I don't, who will?), from my prior post of Dec. 9, 2000, How Many Meteorites Fall? Taking the area of the Earth to be 5.1 x 10^8 km^2 and the meteorite flux to be 23,930 yr^-1, this yields the assumed collisional cross section of the earth to be 21,360 km^2 yr^-1. This rate means that one meteorite per year falls on an area of 21,320 square kilometers. The inverse function of this value is how long we have to wait for a meteorite to fall on a standard area, or the mean time to impact: 21,360 yr km^-2. To put this flux into perspective, if you owned a house with a half-acre yard, you would have to wait 10,552,000 years for a meteorite to fall in your front or back yard or on your roof! (On average, that is; it could happen tomorrow.) Of course, if the rate of fall is 10 times greater or if your yard is much bigger, you would only have to wait, on average, one million years! Sterling K. Webb :-D --- Jason Phillips wrote: Hello List, As I am preparing for the spring lawn moving season I decided to combine my favorite hobby with the mundane chore of mowing the yard. I am going to attach magnets to the sides and front of my mower in hopes of finding a treasure (meteorite) in my yard. Any ideas or suggestions would be appreciated. Take Care, Jason Phillips Rocks From Heaven.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Searching Antarctic Ice for Meteorites
List: National Geographic, February 2002 Very nice fold out map of Antarctica; Sea Ice movement, Wind Flow, Sea Ice Velocity, and the under-ice bedrock landscape. National Geographic, March 2002 Natural Diamonds, localities, the harsh Geo/Political nature of mining them. Revealing article. Russ K. At 10:06 PM 02/28/2002 -0800, you wrote: http://www.psrd.hawaii.edu/Feb02/meteoriteSearch.html Searching Antarctic Ice for Meteorites Planetary Science Research Discoveries February 28, 2002 --- Silver anniversary season: The vigorous life and times of the ANSMET team at Meteorite Hills resulted in a new set of 336 meteorites collected off the ice. Written by Linda M.V. Martel Hawaii Institute of Geophysics and Planetology For a twenty-fifth austral summer, the Antarctic Search for Meteorites (ANSMET) program sent a team of people from far-flung homes to the ice to search for meteorites. From Dec. 7, 2001 to Jan. 23, 2002 we camped at Meteorite Hills and traversed by snowmobiles to the surrounding ice fields where we searched, sometimes on foot, in systematic parallel sweeps. Led by Principal Investigator, Ralph Harvey of Case Western Reserve University (CWRU, Cleveland), the team members were: John Schutt (Co-I and mountaineer from Washington state), Jamie Pierce (Summit Expeditions mountaineer, Seattle), Nancy Chabot (ANSMET post-doc at CWRU), Cari Corrigan (CWRU), Matthew Genge (Natural History Museum, London), Duck Mittlefehldt (NASA Johnson Space Center, Houston), Juanita Ryan (NSF's Teachers Experience Antarctica program, San Jose), Maggie Taylor (NASA Jet Propulsion Laboratory, Pasadena) and me. Our efforts added 336 meteorites (from as small as 1-centimeter long to almost 30-centimeters long) to the world's collection of extraterrestrial bits and pieces. Whether these meteorites are collisional debris from asteroids or from high-energy impacts on the Moon or Mars awaits to be seen. Reference: U. S. Antarctic Search for Meteorites program. -- Support ANSMET meteorites represent the materials making up the solar system. The unbiased and uncontaminated sampling of meteorites recovered from the Antarctic ice sheet provides researchers with ground truth about the materials and formation conditions of the solar nebula, asteroids, moons, and planets. Taking these rocks from space off the ice and into the laboratory is crucial to our quest to understand the history and composition of the solar system we live in. ANSMET makes annual expeditions to Antarctica to provide this much-needed continuous and readily available supply of extraterrestrial materials. ANSMET is funded through a partnership among the National Science Foundation, NASA, and the Smithsonian Institution. For the 2001-2002 season, ANSMET was one of twenty-six Antarctic activities supported by the Geology and Geophysics program of the Office of Polar Programs at the National Science Foundation. Our NSF program manager, Scott Borg, was in McMurdo when I arrived. Increased NASA funding this season, through program manager Joe Boyce, enabled our team to have ten members rather than the usual eight. -- Logistics for a season in the sun After leaving home, our expedition team members converged in Christchurch, New Zealand home to the New Zealand, Italian, and U. S. Antractic programs. Officials at the Clothing Distribution Center briefed us on Extreme Cold Weather (ECW) clothing and issued about 40 pounds of it to each of us. We were outfitted with layers of long underwear, fleece shirt and pants, heavy wind pants, down-filled parka, double-insulated boots, goggles, neck warmers, hats, and more mittens and gloves than you could count. Flights south to McMurdo Station (77o 51' S, 166o 40' E) are handled by the U.S. Air National Guard or Royal New Zealand Air Force with LC130 Hercules cargo planes. The canvas-webbing seats, noise, and dark spaces of the plane were new experiences for me. It was all in stark contrast to the nearly blinding white snow and ice of the landing field at McMurdo. The season began with a planned staggered start allowing the two mountaineers, John Schutt and Jamie Pierce, to arrive first at McMurdo in mid-November. McMurdo is one of three U. S. year-round stations on the Antarctic continent. The other two stations are Amundsen-Scott South Pole and Palmer. All together, NSF's U. S. Antarctic Program (USAP) supported 800 researchers in Antarctica this year participating in approximately 148 different research projects. Over 2,000 civilian contract employees and U.S. military personnel supported these projects on the continent. It can't be over emphasized how crucial their support is for the transport and ultimate well being of each and every soul and piece of equipment out on the ice. Our team relied on the expertise of Steve Dunbar, Alana Jones, and Robbie Score from
[meteorite-list] Searching Antarctic Ice for Meteorites
http://www.psrd.hawaii.edu/Feb02/meteoriteSearch.html Searching Antarctic Ice for Meteorites Planetary Science Research Discoveries February 28, 2002 --- Silver anniversary season: The vigorous life and times of the ANSMET team at Meteorite Hills resulted in a new set of 336 meteorites collected off the ice. Written by Linda M.V. Martel Hawaii Institute of Geophysics and Planetology For a twenty-fifth austral summer, the Antarctic Search for Meteorites (ANSMET) program sent a team of people from far-flung homes to the ice to search for meteorites. From Dec. 7, 2001 to Jan. 23, 2002 we camped at Meteorite Hills and traversed by snowmobiles to the surrounding ice fields where we searched, sometimes on foot, in systematic parallel sweeps. Led by Principal Investigator, Ralph Harvey of Case Western Reserve University (CWRU, Cleveland), the team members were: John Schutt (Co-I and mountaineer from Washington state), Jamie Pierce (Summit Expeditions mountaineer, Seattle), Nancy Chabot (ANSMET post-doc at CWRU), Cari Corrigan (CWRU), Matthew Genge (Natural History Museum, London), Duck Mittlefehldt (NASA Johnson Space Center, Houston), Juanita Ryan (NSF's Teachers Experience Antarctica program, San Jose), Maggie Taylor (NASA Jet Propulsion Laboratory, Pasadena) and me. Our efforts added 336 meteorites (from as small as 1-centimeter long to almost 30-centimeters long) to the world's collection of extraterrestrial bits and pieces. Whether these meteorites are collisional debris from asteroids or from high-energy impacts on the Moon or Mars awaits to be seen. Reference: U. S. Antarctic Search for Meteorites program. -- Support ANSMET meteorites represent the materials making up the solar system. The unbiased and uncontaminated sampling of meteorites recovered from the Antarctic ice sheet provides researchers with ground truth about the materials and formation conditions of the solar nebula, asteroids, moons, and planets. Taking these rocks from space off the ice and into the laboratory is crucial to our quest to understand the history and composition of the solar system we live in. ANSMET makes annual expeditions to Antarctica to provide this much-needed continuous and readily available supply of extraterrestrial materials. ANSMET is funded through a partnership among the National Science Foundation, NASA, and the Smithsonian Institution. For the 2001-2002 season, ANSMET was one of twenty-six Antarctic activities supported by the Geology and Geophysics program of the Office of Polar Programs at the National Science Foundation. Our NSF program manager, Scott Borg, was in McMurdo when I arrived. Increased NASA funding this season, through program manager Joe Boyce, enabled our team to have ten members rather than the usual eight. -- Logistics for a season in the sun After leaving home, our expedition team members converged in Christchurch, New Zealand home to the New Zealand, Italian, and U. S. Antractic programs. Officials at the Clothing Distribution Center briefed us on Extreme Cold Weather (ECW) clothing and issued about 40 pounds of it to each of us. We were outfitted with layers of long underwear, fleece shirt and pants, heavy wind pants, down-filled parka, double-insulated boots, goggles, neck warmers, hats, and more mittens and gloves than you could count. Flights south to McMurdo Station (77o 51' S, 166o 40' E) are handled by the U.S. Air National Guard or Royal New Zealand Air Force with LC130 Hercules cargo planes. The canvas-webbing seats, noise, and dark spaces of the plane were new experiences for me. It was all in stark contrast to the nearly blinding white snow and ice of the landing field at McMurdo. The season began with a planned staggered start allowing the two mountaineers, John Schutt and Jamie Pierce, to arrive first at McMurdo in mid-November. McMurdo is one of three U. S. year-round stations on the Antarctic continent. The other two stations are Amundsen-Scott South Pole and Palmer. All together, NSF's U. S. Antarctic Program (USAP) supported 800 researchers in Antarctica this year participating in approximately 148 different research projects. Over 2,000 civilian contract employees and U.S. military personnel supported these projects on the continent. It can't be over emphasized how crucial their support is for the transport and ultimate well being of each and every soul and piece of equipment out on the ice. Our team relied on the expertise of Steve Dunbar, Alana Jones, and Robbie Score from NSF's polar contractor, Raytheon Polar Services. In McMurdo, John Schutt and Jamie Pierce began the lengthy preparation, loading, and unloading of gear and supplies for the team's entire seven-week field season. Four meteorite collection kits, 1900 pounds of food, eight snowmobiles, over 5000 gallons of fuel, four Scott polar tents for dwellings, one
