Re: [meteorite-list] METEORITE GIVAWAY#14/ESQUEL
Where ya gonna go with all the food WE can eat I don't know, I don't know, I don't know where I'm gonna go, isn'tit a Pyrite's fate to justget drunk and moo? she say when the volcano blow, quicklava me now or lava me not, Moon soon come soon, not count worth, leave Earth, hope they'll be rum so gotta CM2 but not gonna land in Mexico,:( (great songs by the Pyrrhotheads) Steve Arnold, Chicago!!! wrote: Tomorrow I am going to see JIMMY BUFFET with all you can eat and drink. Wow! A Jimmy Buffet buffet kn From:David Freeman [EMAIL PROTECTED] To:RYAN PAWELSKI [EMAIL PROTECTED] Parkforest in paradise? Be sure to keep it between the navigational beacons! DF RYAN PAWELSKI wrote: Damn.. you beat me to it, Ken. And I must say; that made me hungry Steve. How about a food givaway after you get back from the Buffet buffet tomorrow night? You can always ask your wife to use her purse to bring home the goods. Ryan -Original Message- From: ken newton [EMAIL PROTECTED] Sent: Aug 27, 2004 3:50 PM To: [EMAIL PROTECTED] Subject: Re: [meteorite-list] METEORITE GIVAWAY#14/ESQUEL __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] re: cinnabar in meteorites
Hi Bernd, That helps enormously! In fact, I was thinking of several cases in which stones said to have dropped from the sky bore veiny letters on their surface, cinnabar-coloured scrawl that people interpreted as messages from God. Having seen narrow lines of cinnabar in rock, I wondered whether a connection existed. Judging by your reply, there is probably no direct link, but I had to establish the negative before moving on. Thanks again, Chris --- [EMAIL PROTECTED] wrote: I have found some historical accounts of meteorites with red veins, supposedly cinnabar. Can such things be? Hello Chris and List, I f you are talking about Colston Bassett - the answer is definitely no because it is a pseudometeorite. The Catalogue says that : A boulder lying in the churchyard has been identified as cinnabar, probably from Peru. Its meteoritic origin appears to be 'purely a fabrication of local legend', W.A.S. Sarjeant, The Mercian Geologist, 1971, 4, p. 41. If you are talking about Allende or Murchison, the answer may be yes because *minute* amounts of Hg (= mercury) have been identified in them: Allende = 30 ± 1.5 ng/g and Murchison = 294 ± 15 ng/g. Well, just like iron + sulfur = FeS (troilite), Hg + S = HgS = cinnabar. References: LAURETTA D.S. et al. (2000) Inductively coupled plasma mass spectrometry measurements of bulk mercury abundances and isotopic ratios in Murchison - CM, and Allende - CV (MAPS 35-5, 2000, Suppl., A095). RUBIN A.E. (1997) Mineralogy of meteorite groups (Meteoritics 32-2, 1997, 231-247). ULYANOV A.A. (1991) The meteorite minerals (Brown- Vernadsky Microsymp. Comp. Planet. 14th). Best regards, Bernd __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list = http://embark.to/magonia C / Mayor 51, 3 B, 28013 Madrid Spain Tel: 600376311 (with image capabilities) ___ALL-NEW Yahoo! Messenger - all new features - even more fun! http://uk.messenger.yahoo.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Beer 'n' meteorites
I can see it now, NWA869-lite commercials about the special ingredients that pass through many hands. Picture the rocks going from a the sands of the desert, to a nomad, to a Moroccan broker, to Dean, to 600 plus list members, to the world, and now to become the feature ingredient in your favorite beer. I'd like it ice cold...maybe from a large regmaglypt in a chilled, but new, 80 kilo Campo. Probably would need a straw. John -- Original message from tracy latimer : -- Does anyone out there brew their own beer? I suspect if someone were to create a 'meteoritenbier', by adding a few flakes of meteorite to the mash, it would quickly become the brew of choice at Tucson. I'd opt for a eucrite or howardite myself, or a few milligrams of Martian or Lunar if I were feeling flush; I suspect an iron or H might have a 'rusty' flavor :-) Rather than eating crumbs of Zagami, make them potable! Something else to do with those unclasified NWAs... Tracy Latimer _ Get ready for school! Find articles, homework help and more in the Back to School Guide! http://special.msn.com/network/04backtoschool.armx __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] TEST
TEST __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Off topic lap top offer
Hello list, I thought I would offer my Laptop computer ( actually my brothers )to the list instead of doing the ebay thing. Its a Sony Vaio notebook computer model # PCG-974L It has Windows XP and about 8 gb of free space on the harddrive. It actually has two hardrives one 5gb and the other 8gb. Other than that, it has some usual programs that came with the computer when purchased I m sure one could do a search to find out more specs. Its in excellent condition thats why I'm offering it to the list , hopefully I can help out someone whos looking for a laptop. If I didnt have 3 comps in the household already, I'd definitely keep it. So if anyones offended by my offer please remember Im trying to help someone out on the list . otherwise it would take me 2 minutes to list it on ebay. I'm asking $400 obo. Here's a pic: http://f2.pg.photos.yahoo.com/ph/spacerox2001/detail?.dir=/8538.dnm=9c0c.jp g Thanks Bob Evans __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ignition Threshold For Impact-Generated Fires
Southwest Research Institute (SwRI) PO Drawer 28510 San Antonio, TX 78228-0510 For more information contact: Deb Schmid, Communications Department (210) 522-2254 August 26, 2004 Ignition threshold for impact-generated fires San Antonio -- Scientists conclude that, 65 million years ago, a 10-kilometer-wide asteroid or comet slammed into what is now the Yucatan peninsula, excavating the Chicxulub impact crater and setting into motion a chain of catastrophic events thought to precipitate the extinction of the dinosaurs and 75 percent of animal and plant life that existed in the late Cretaceous period. The impact of an asteroid or comet several kilometers across heaps environmental insult after insult on the world, said Dr. Daniel Durda, a u senior research scientist at Southwest Research Institute® (SwRI®). One aspect of the devastation wrought by large impacts is the potential for global wildfires ignited by material ejected from the crater reentering the atmosphere in the hours after the impact. Large impacts can blast thousands of cubic kilometers of vaporized impactor and target sediments into the atmosphere and above, expanding into space and enveloping the entire planet. These high-energy, vapor-rich materials reenter the atmosphere and heat up air temperatures to the point that vegetation on the ground below can spontaneously burst into flame. In 2002, we investigated the Chicxulub impact event to examine the extent and distribution of fires it caused, said Durda. This cosmic collision carved out a crater some 40 kilometers (25 miles) deep and 180 kilometers (112 miles) across at the boundary between two geologic periods, the Cretaceous, when the dinosaurs ruled the planet, and the Tertiary, when mammals took supremacy. We noted that fires appeared to be global, covering multiple continents, but did not cover the entire Earth, Durda continued. That suggested to us that the Chicxulub impact was probably near the threshold size event necessary for igniting global fires, and prompted us to ask 'What scale of impact is necessary for igniting widespread fires?' In a new study, Durda and Dr. David Kring, an associate professor at the University of Arizona Lunar and Planetary Laboratory, published a theory for the ignition threshold for impact-generated fires in the August 20, 2004, issue of the Journal of Geophysical Research. Their research indicates that impacts resulting in craters at least 85 kilometers wide can produce continental-scale fires, while impact craters more than 135 kilometers wide are needed to cause global-scale fires. To calculate the threshold size impact required for global ignition of various types of vegetation, Durda and Kring used two separate, but linked, numerical codes to calculate the global distribution of debris reentering the atmosphere and the kinetic energy deposited in the atmosphere by the material. The distribution of fires depends on projectile trajectories, the position of the impact relative to the geographic distribution of forested continents and the mass of crater and projectile debris ejected into the atmosphere. They also examined the threshold temperatures and durations required to spontaneously ignite green wood, to ignite wood in the presence of an ignition source (such as lightning, which would be prevalent in the dust-laden energetic skies following an impact event) and to ignite rotting wood, leaves and other common forest litter. The Chicxulub impact event may have been the only known impact event to have caused wildfires around the globe, Kring noted. The Manicouagan (Canada) and Popigai (Russia) impact events, however, may have caused continental-scale fires. The Manicouagan impact occurred in the late Triassic, and the Popigai impact event occurred in the late Eocene, but neither has been firmly linked yet to the mass extinction events that occurred at those times. Kring is currently at the International Geological Congress in Florence, Italy, giving a keynote address on the Chicxulub impact event and its relationship to the mass extinctions at the Cretaceous-Tertiary boundary period. Durda is available for comment at the SwRI offices in Boulder, Colo. EDITORS: High-resolution images for download are available at http://www.swri.org/press/impactfires.htm __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Ignition Threshold For Impact-Generated Fires
Dear All; Please take a moment to consult a map of the cretaceous Earth and note the position of the continents, and of how much of the continents were under water. This really offers some insight into what is proposed. Dave F. Ron Baalke wrote: Southwest Research Institute (SwRI) PO Drawer 28510 San Antonio, TX 78228-0510 For more information contact: Deb Schmid, Communications Department (210) 522-2254 August 26, 2004 Ignition threshold for impact-generated fires San Antonio -- Scientists conclude that, 65 million years ago, a 10-kilometer-wide asteroid or comet slammed into what is now the Yucatan peninsula, excavating the Chicxulub impact crater and setting into motion a chain of catastrophic events thought to precipitate the extinction of the dinosaurs and 75 percent of animal and plant life that existed in the late Cretaceous period. The impact of an asteroid or comet several kilometers across heaps environmental insult after insult on the world, said Dr. Daniel Durda, a u senior research scientist at Southwest Research Institute® (SwRI®). One aspect of the devastation wrought by large impacts is the potential for global wildfires ignited by material ejected from the crater reentering the atmosphere in the hours after the impact. Large impacts can blast thousands of cubic kilometers of vaporized impactor and target sediments into the atmosphere and above, expanding into space and enveloping the entire planet. These high-energy, vapor-rich materials reenter the atmosphere and heat up air temperatures to the point that vegetation on the ground below can spontaneously burst into flame. In 2002, we investigated the Chicxulub impact event to examine the extent and distribution of fires it caused, said Durda. This cosmic collision carved out a crater some 40 kilometers (25 miles) deep and 180 kilometers (112 miles) across at the boundary between two geologic periods, the Cretaceous, when the dinosaurs ruled the planet, and the Tertiary, when mammals took supremacy. We noted that fires appeared to be global, covering multiple continents, but did not cover the entire Earth, Durda continued. That suggested to us that the Chicxulub impact was probably near the threshold size event necessary for igniting global fires, and prompted us to ask 'What scale of impact is necessary for igniting widespread fires?' In a new study, Durda and Dr. David Kring, an associate professor at the University of Arizona Lunar and Planetary Laboratory, published a theory for the ignition threshold for impact-generated fires in the August 20, 2004, issue of the Journal of Geophysical Research. Their research indicates that impacts resulting in craters at least 85 kilometers wide can produce continental-scale fires, while impact craters more than 135 kilometers wide are needed to cause global-scale fires. To calculate the threshold size impact required for global ignition of various types of vegetation, Durda and Kring used two separate, but linked, numerical codes to calculate the global distribution of debris reentering the atmosphere and the kinetic energy deposited in the atmosphere by the material. The distribution of fires depends on projectile trajectories, the position of the impact relative to the geographic distribution of forested continents and the mass of crater and projectile debris ejected into the atmosphere. They also examined the threshold temperatures and durations required to spontaneously ignite green wood, to ignite wood in the presence of an ignition source (such as lightning, which would be prevalent in the dust-laden energetic skies following an impact event) and to ignite rotting wood, leaves and other common forest litter. The Chicxulub impact event may have been the only known impact event to have caused wildfires around the globe, Kring noted. The Manicouagan (Canada) and Popigai (Russia) impact events, however, may have caused continental-scale fires. The Manicouagan impact occurred in the late Triassic, and the Popigai impact event occurred in the late Eocene, but neither has been firmly linked yet to the mass extinction events that occurred at those times. Kring is currently at the International Geological Congress in Florence, Italy, giving a keynote address on the Chicxulub impact event and its relationship to the mass extinctions at the Cretaceous-Tertiary boundary period. Durda is available for comment at the SwRI offices in Boulder, Colo. EDITORS: High-resolution images for download are available at http://www.swri.org/press/impactfires.htm __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
