[meteorite-list] Good Meteorite Search Engine
Good Morning- I have not seen this mentioned in the meteorite list (hope I didn't miss it and apologize if I did)- but the Beta Google Scholar is great to look up meteorite articles from a scientific perspective and without the advertising. Here is the link. http://scholar.google.com/ Everyone have a good day. Mike __ Do you Yahoo!? Yahoo! Mail - Find what you need with new enhanced search. http://info.mail.yahoo.com/mail_250 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
RE: [meteorite-list] Blog garbage.
Dirk and List, It's obvious that the blog wasn't the answer Dirk was looking for when he suggested the idea of one to the List. There are some alternatives out there with customizable features. John Gwilliam At 10:49 PM 2/22/2005, drtanuki wrote: Stan and List, The only positive thing that I can say about the blog list is that it keeps some of the garbage and fights off of this list. I have posted once to ask that my name be taken off of the bloglist. I do not suggest that anyone should waste their time going to this site unless you just want to read garbage and attacks. Best to All. Sincerely, Dirk Ross...Tokyo __ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo __ 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] NWA 3118 CV3 Chondrule-Field Update
What does all this mean? Hello Walter, Bill, and List, I'll try to go through this in little steps: examination of the inclusion ...shows it to consist of small chondrules and chondrule fragments composed of very magnesian olivine (Fa1.1) The chondrules in the lower right part of the 32-gram slice are much smaller than chondrules in the remaining CV3 matrix like chondrules in CO3 chondrites that are much smaller. See also O.R. Norton's Encyclopedia, pp. 135-136 and p. 136, Fig. 7.19: While the average chondrule-diameter of a CV is about 1 mm, the average for a CO chondrite is about 0.15 mm. small chondrules ... composed of very magnesian olivine (Fa1.1) O.R. Norton, 135: most [chondrules in CO chondrites] are porphyritic olivine chondrules with olivine made of nearly pure forsterite. O.R. Norton, p. 312, Appendix C, Minerals in Meteorites: Forsterite = the magnesium end member of the olivine ... (Mg2SiO4) The chemical formula shows it is *magnesian* olivine and Fa1.1 shows there is hardly any trace of iron. The opposite end member is fayalite (Fe2SiO4), the iron end member (here it is iron that is missing). with marginal Fe-rich reaction zones (Fa36.9) Imagine a small rim around the chondrules. These outer zones reacted with FeO-rich (iron-rich) olivine in the surronding matrix and thereby became enriched in Fe (not just Fa1.1 [iron-poor] but Fa36.9 [iron-rich]). against a porous matrix composed of felted blades of relatively ferroan olivine (Fa40.9-45.9) with accessory troilite and pentlandite. Here is what I already said the matrix is rich in olivine that contains a lot of iron and not as much magnesium as those magnesian chondrules. This clast has the attributes of Type A/B dark inclusions ... Dark inclusions are lithic fragments up to about 5 cm in size. They have been found in several CV3 chondrites, for example in Allende, Vigarano, Leoville, etc.). Their main mineral component is fayalitic olivine. Some are chondrule-rich, some are chondrule-free (consist almost entirely of matrix)*. *Reference: WEISBERG M.K. et al. (1998) Fayalitic olivine in CV3 chondrite matrix and dark inclusions: A nebular origin (MAPS 33-5, 1998, 1087-1099). This clast has the attributes of *Type A/B* dark inclusions ... HUTCHISON R. (2004) Meteorites: A Petrologic, Chemical, and Isotopic Synthesis (Cambridge Planetary Science Series, p. 62): Porphyritic chondrules may be type I and FeO-poor or type II and FeO-rich They may additionally be subdivided into two categories: - silica-poor A - silica-rich B AB is intermediate. Oxygen isotope analysis ... gave replicate (= duplicate) values of: d17O = +0.08, -0.18; d18O = 5.14, 4.99; D17O = -2.63, -2.81 per mil, respectively, which plot on the best fit line for whole rock CV chondrites. See O.R. Norton, p. 135 or McSWEEN H.Y. (1999) Meteorites and Their Parent Planets, p.51: The oxygen isotopic compositions provide one means of classifying chondrites into clans and groups. When you look at these plots in Norton or McSween, you'll see that these values are in the range for CV chondrites but very close to the area for CM chondrites (which are much more primitive than CVs and point toward aqueous activity and aqueous alteration on their parent bodies. So this clast may represent a more hydrated relict part of a CV parent body the other parts of which are more dehydrated due to parent body metamorphism. A piece from a boundary area between more and less dehydrated material? A pocket (or clast) of more primitive material embedded into the higher metamorphosed CV3 material? a specimen that clearly demonstrates what the above report describes: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=6513101418 Best wishes, Bernd __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NWA 3118 CV3 Chondrule-Field Update
Correction: The chemical formula shows it is *magnesian* olivine and Fa1.1 shows there is hardly any trace of iron. The opposite end member is fayalite (Fe2SiO4), the iron end member (here it is MAGNESIUM that is missing). Bernd __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] NWA 3118 CV3 Chondrule-Field Update
Hello List members, See also Mineralogy of dark inclusions in CV by Brearly Jones in Planetary Materials, Reviews in Mineralogy vol. 36, p3-225, which is a well-written review for CV DI, I guess. K. Ohtsuka, Tokyo - Original Message - From: [EMAIL PROTECTED] To: Meteorite-list@meteoritecentral.com Sent: Thursday, February 24, 2005 1:26 AM Subject: [meteorite-list] NWA 3118 CV3 Chondrule-Field Update What does all this mean? Hello Walter, Bill, and List, I'll try to go through this in little steps: examination of the inclusion ...shows it to consist of small chondrules and chondrule fragments composed of very magnesian olivine (Fa1.1) The chondrules in the lower right part of the 32-gram slice are much smaller than chondrules in the remaining CV3 matrix like chondrules in CO3 chondrites that are much smaller. See also O.R. Norton's Encyclopedia, pp. 135-136 and p. 136, Fig. 7.19: While the average chondrule-diameter of a CV is about 1 mm, the average for a CO chondrite is about 0.15 mm. small chondrules ... composed of very magnesian olivine (Fa1.1) O.R. Norton, 135: most [chondrules in CO chondrites] are porphyritic olivine chondrules with olivine made of nearly pure forsterite. O.R. Norton, p. 312, Appendix C, Minerals in Meteorites: Forsterite = the magnesium end member of the olivine ... (Mg2SiO4) The chemical formula shows it is *magnesian* olivine and Fa1.1 shows there is hardly any trace of iron. The opposite end member is fayalite (Fe2SiO4), the iron end member (here it is iron that is missing). with marginal Fe-rich reaction zones (Fa36.9) Imagine a small rim around the chondrules. These outer zones reacted with FeO-rich (iron-rich) olivine in the surronding matrix and thereby became enriched in Fe (not just Fa1.1 [iron-poor] but Fa36.9 [iron-rich]). against a porous matrix composed of felted blades of relatively ferroan olivine (Fa40.9-45.9) with accessory troilite and pentlandite. Here is what I already said the matrix is rich in olivine that contains a lot of iron and not as much magnesium as those magnesian chondrules. This clast has the attributes of Type A/B dark inclusions ... Dark inclusions are lithic fragments up to about 5 cm in size. They have been found in several CV3 chondrites, for example in Allende, Vigarano, Leoville, etc.). Their main mineral component is fayalitic olivine. Some are chondrule-rich, some are chondrule-free (consist almost entirely of matrix)*. *Reference: WEISBERG M.K. et al. (1998) Fayalitic olivine in CV3 chondrite matrix and dark inclusions: A nebular origin (MAPS 33-5, 1998, 1087-1099). This clast has the attributes of *Type A/B* dark inclusions ... HUTCHISON R. (2004) Meteorites: A Petrologic, Chemical, and Isotopic Synthesis (Cambridge Planetary Science Series, p. 62): Porphyritic chondrules may be type I and FeO-poor or type II and FeO-rich They may additionally be subdivided into two categories: - silica-poor A - silica-rich B AB is intermediate. Oxygen isotope analysis ... gave replicate (= duplicate) values of: d17O = +0.08, -0.18; d18O = 5.14, 4.99; D17O = -2.63, -2.81 per mil, respectively, which plot on the best fit line for whole rock CV chondrites. See O.R. Norton, p. 135 or McSWEEN H.Y. (1999) Meteorites and Their Parent Planets, p.51: The oxygen isotopic compositions provide one means of classifying chondrites into clans and groups. When you look at these plots in Norton or McSween, you'll see that these values are in the range for CV chondrites but very close to the area for CM chondrites (which are much more primitive than CVs and point toward aqueous activity and aqueous alteration on their parent bodies. So this clast may represent a more hydrated relict part of a CV parent body the other parts of which are more dehydrated due to parent body metamorphism. A piece from a boundary area between more and less dehydrated material? A pocket (or clast) of more primitive material embedded into the higher metamorphosed CV3 material? a specimen that clearly demonstrates what the above report describes: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=6513101418 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] NWA 3118 CV3 Chondrule-Field Update
Bernd, Thanks so much for walking through this. I wish I could see every meteorite through your eyes. Very best regards, Bill -- Original message -- From: [EMAIL PROTECTED] What does all this mean? Hello Walter, Bill, and List, I'll try to go through this in little steps: examination of the inclusion ...shows it to consist of small chondrules and chondrule fragments composed of very magnesian olivine (Fa1.1) The chondrules in the lower right part of the 32-gram slice are much smaller than chondrules in the remaining CV3 matrix like chondrules in CO3 chondrites that are much smaller. See also O.R. Norton's Encyclopedia, pp. 135-136 and p. 136, Fig. 7.19: While the average chondrule-diameter of a CV is about 1 mm, the average for a CO chondrite is about 0.15 mm. small chondrules ... composed of very magnesian olivine (Fa1.1) O.R. Norton, 135: most [chondrules in CO chondrites] are porphyritic olivine chondrules with olivine made of nearly pure forsterite. O.R. Norton, p. 312, Appendix C, Minerals in Meteorites: Forsterite = the magnesium end member of the olivine ... (Mg2SiO4) The chemical formula shows it is *magnesian* olivine and Fa1.1 shows there is hardly any trace of iron. The opposite end member is fayalite (Fe2SiO4), the iron end member (here it is iron that is missing). with marginal Fe-rich reaction zones (Fa36.9) Imagine a small rim around the chondrules. These outer zones reacted with FeO-rich (iron-rich) olivine in the surronding matrix and thereby became enriched in Fe (not just Fa1.1 [iron-poor] but Fa36.9 [iron-rich]). against a porous matrix composed of felted blades of relatively ferroan olivine (Fa40.9-45.9) with accessory troilite and pentlandite. Here is what I already said the matrix is rich in olivine that contains a lot of iron and not as much magnesium as those magnesian chondrules. This clast has the attributes of Type A/B dark inclusions ... Dark inclusions are lithic fragments up to about 5 cm in size. They have been found in several CV3 chondrites, for example in Allende, Vigarano, Leoville, etc.). Their main mineral component is fayalitic olivine. Some are chondrule-rich, some are chondrule-free (consist almost entirely of matrix)*. *Reference: WEISBERG M.K. et al. (1998) Fayalitic olivine in CV3 chondrite matrix and dark inclusions: A nebular origin (MAPS 33-5, 1998, 1087-1099). This clast has the attributes of *Type A/B* dark inclusions ... HUTCHISON R. (2004) Meteorites: A Petrologic, Chemical, and Isotopic Synthesis (Cambridge Planetary Science Series, p. 62): Porphyritic chondrules may be type I and FeO-poor or type II and FeO-rich They may additionally be subdivided into two categories: - silica-poor A - silica-rich B AB is intermediate. Oxygen isotope analysis ... gave replicate (= duplicate) values of: d17O = +0.08, -0.18; d18O = 5.14, 4.99; D17O = -2.63, -2.81 per mil, respectively, which plot on the best fit line for whole rock CV chondrites. See O.R. Norton, p. 135 or McSWEEN H.Y. (1999) Meteorites and Their Parent Planets, p.51: The oxygen isotopic compositions provide one means of classifying chondrites into clans and groups. When you look at these plots in Norton or McSween, you'll see that these values are in the range for CV chondrites but very close to the area for CM chondrites (which are much more primitive than CVs and point toward aqueous activity and aqueous alteration on their parent bodies. So this clast may represent a more hydrated relict part of a CV parent body the other parts of which are more dehydrated due to parent body metamorphism. A piece from a boundary area between more and less dehydrated material? A pocket (or clast) of more primitive material embedded into the higher metamorphosed CV3 material? a specimen that clearly demonstrates what the above report describes: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=6513101418 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] New Chassignite
Dear List members, we just up-dated our web page with nice Chassignite slices, we had difficulties to take good pictures but it still worth looking at them ! http://www.meteorite.fr/en/forsale/chassignite.htm We want to thank all the 74 of you that did sign or write a letter against the saharamet crap. you all have a good day, Bruno Carine La Memoire de la Terre Sarl The Earth's Memory LLC France www.meteorite.fr www.fossile.fr __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rosetta to Fly By Earth on March 4
http://www.esa.int/esaCP/SEMMTBYEM4E_index_0.html ESA's comet chaser to fly by Earth European Space Agency 23 February 2005 ESA's comet-chaser Rosetta will make a fly-by of planet Earth on 4 March 2005, and sky watchers should be able to see it with telescopes or binoculars if the sky is clear! Read on for details of ESA's 'Rosetta Up Close' photo contest. Rosetta is approaching Earth from an area in the sky between the constellations Leo and Sextans, and should first become visible to large amateur telescopes around 26 February 2005. The spacecraft will make its closest approach to Earth at about 23:10 CET and come within 1900 kilometres, at which time it will be over Mexico, having already passed over Europe. Watchers in Europe may have best evening view On the evening of the closest approach, sky watchers in Europe will be favourably placed to follow this event using smaller telescopes or binoculars. Unfortunately, Rosetta is not expected to become visible to the naked eye from Europe as it will still be about 10 000 kilometres away until it disappears below the horizon. However, amateur astronomers using video or photo-imaging in conjunction with a telescope should have a great viewing opportunity - weather permitting. They may even be able to see Rosetta's solar panels, which extend over 32 metres; the high-gain antenna may also be distinguishable. After sunset on 4 March, it will appear to travel from south east to south west, moving from the constellation Sextans towards the setting Sun, crossing the complete sky. It will move faster as it heads west, disappearing below the horizon around 23:00 CET. As seen from Europe it will only reach a 'magnitude' of about +8 or +9 on the brightness scale used by astronomers. This is dimmer than a typical faint star and not readily apparent to the eye. Rosetta swings between Earth and Mars This fly-by manoeuvre will swing the three-tonne Rosetta spacecraft around our planet and out towards Mars, where it will make a fly-by on 26 February 2007, only to come back again to Earth. Fly-bys are necessary to accelerate the spacecraft, using planetary gravity, such that the orbital velocity of the target comet can eventually be matched. This is the first of four planet fly-bys (three times with Earth, once with Mars) that Rosetta will carry out in its long journey to its target, Comet 67P/Churyumov-Gerasimenko. Rosetta will reach the comet in 2014, enter into orbit and deliver a lander, Philae, onto the surface. Moon to serve as 'dummy' asteroid A number of activities are planned during the current fly-by. A few hours before the closest approach the spacecraft will be pointed towards the Moon and the remote sensing and several other instruments will be switched on for calibration purposes. After this fly-by, one of the two Navigation Cameras will be switched on to test Rosetta's ability to track asteroids using the Moon as a 'dummy' asteroid. Rosetta is scheduled to fly past two asteroids, Steins in September 2008 and Lutetia in July 2010, during which this tracking mode will be used to keep the spacecraft instruments centred on target. 'Rosetta Up Close' photo contest Sky watchers everywhere are invited to submit their photos of Rosetta passing Earth to ESA's 'Rosetta Up Close' photo contest. Details of the contest, rules, prizes and submission procedures will be posted shortly on the ESA web site. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Brahin trade offer.. want carbonaceous meteorite
Hello all I want to focus my meteorite collecting. I want to concentrade on carbonaceous meteorites, and my Sikhote-Alin collection. So my newly obtained 530 gram Full slice of Brahin Pallasite is up for a trade with preferebly a carbonaceous, or else a big Sikhote-Alin. Anyone interested ? Best Lars __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] New Chassignite
Hi Bruno Carine, I tried to order from you, but the email was returned marked: -- Final-Recipient: rfc822; [EMAIL PROTECTED] Action: failed Status: 5.0.0 Diagnostic-Code: X-Postfix; host mail.aricia.fr[195.167.227.248] said: 550 5.0.0 [EMAIL PROTECTED]... We don't accept spam (in reply to MAIL FROM command) -- I don't know what triggered this, as I only have a couple of small quotes in my sig file - I used to get this when I had a bunch of URLs in my sig file. Please contact me off list. Thanks, Michael on 2/23/05 11:10 AM, The Earth's Memory at [EMAIL PROTECTED] wrote: Dear List members, we just up-dated our web page with nice Chassignite slices, we had difficulties to take good pictures but it still worth looking at them ! http://www.meteorite.fr/en/forsale/chassignite.htm We want to thank all the 74 of you that did sign or write a letter against the saharamet crap. you all have a good day, Bruno Carine La Memoire de la Terre Sarl The Earth's Memory LLC France www.meteorite.fr www.fossile.fr __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list -- You and I do not see things as they are. We see things as we are. -Herb Cohen -- If a million people say a foolish thing, it is still a foolish thing. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mars Global Surveyor Images - February 17-23, 2005
MARS GLOBAL SURVEYOR IMAGES February 17-23, 2005 The following new images taken by the Mars Orbiter Camera (MOC) on the Mars Global Surveyor spacecraft are now available: o Crater in Acidalia (Released 17 February 2005) http://www.msss.com/mars_images/moc/2005/02/17/ o Sedimentary Rocks in Melas (Released 18 February 2005) http://www.msss.com/mars_images/moc/2005/02/18/ o December's Dunes (Released 19 February 2005) http://www.msss.com/mars_images/moc/2005/02/19/ o Inverted Channel (Released 20 February 2005) http://www.msss.com/mars_images/moc/2005/02/20/ o Ganges Landslides (Released 21 February 2005) http://www.msss.com/mars_images/moc/2005/02/21/ o Mars at Ls 160 Degrees (Released 22 February 2005) http://www.msss.com/mars_images/moc/2005/02/22/ o Iani Sedimentary Rocks (Released 23 February 2005) http://www.msss.com/mars_images/moc/2005/02/23/ All of the Mars Global Surveyor images are archived here: http://www.msss.com/mars_images/moc/index.html Mars Global Surveyor was launched in November 1996 and has been in Mars orbit since September 1997. It began its primary mapping mission on March 8, 1999. Mars Global Surveyor is the first mission in a long-term program of Mars exploration known as the Mars Surveyor Program that is managed by JPL for NASA's Office of Space Science, Washington, DC. Malin Space Science Systems (MSSS) and the California Institute of Technology built the MOC using spare hardware from the Mars Observer mission. MSSS operates the camera from its facilities in San Diego, CA. The Jet Propulsion Laboratory's Mars Surveyor Operations Project operates the Mars Global Surveyor spacecraft with its industrial partner, Lockheed Martin Astronautics, from facilities in Pasadena, CA and Denver, CO. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Bright Light Seen Streaking Over England
http://www.shropshirestar.com/show_article.php?aID=29869 Another sighting in UFO mystery Shropshire Star (United Kingdom) February 22, 2005 Mystery surrounds the origin of a bright light seen streaking through the Shropshire skies at the weekend after two late night cinema-goers claim to have spotted the phenomena 10 hours earlier. Several county residents reported the light at about 10am on Sunday, with many believing they had seen a meteorite. But Rachael Jones, of Harlescott, and Bryony Morgan, of Castlefields, cast further intrigue into the sighting after they saw the object as they left Cineworld, in Old Potts Way, at 12.30am on Sunday. Miss Jones said: It was a sort of yellowy-white colour and then tailed off to nowhere, it went across the sky and then disappeared. We didn't know what it was, but it was weird. But motorist Richard Gorton today stuck with original reports, saying he had seen the blazing trail from Craven Arms at 10.15am on Sunday. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Were the Dinosaurs Done in by Fungus?
http://www.boston.com/news/globe/health_science/articles/2005/02/22/were_the_dinosaurs_done_in_by_fungus/ Were the dinosaurs done in by fungus? By Carolyn Y. Johnson The Boston Globe February 22, 2005 In the still unsolved mystery of how the dinosaurs died, there's a new suspect -- fungus. After a meteor slammed into the Earth 65 million years ago, the great dying began, decimating life in the oceans and killing off the dinosaurs -- with mysteriously little effect on mammals. Conjecture over what did in the reptiles has long fascinated everyone from school children to paleontologists, but a new theory suggests that a less earth-shaking possibility could have played a role. The forests went out. The fungi proliferated, and the Earth became a giant compost pile. An enormous number of spores were released, said Dr. Arturo Casadevall, an infectious disease researcher who proposed last month that air thick with fungal spores after the meteor hit could have overwhelmed animals' immune systems, causing sickness and death. If he's right, the large numbers of warm-blooded mammals and birds that survived the mass extinction might have had a natural advantage -- body temperatures too hot for fungal infections to take hold. It's just a beautifully creative suggestion, said Nicholas Money, a mycologist, or mold expert, from Miami University of Ohio and author of Carpet Monsters and Killer Spores: A Natural History of Toxic Mold. Casadevall, of Albert Einstein College of New York, laid out his suggestion in this month's issue of Fungal Genetics and Biology when considering a much larger question: I ask you, why are we so hot? He has long been troubled by the lives of warm-blooded animals, who must live a virtual food-finding mission because they burn so many calories each day just heating their bodies. Cold-blooded animals, on the other hand, need only eat once every few days. Where, he wondered, is the advantage in a life of constant scurrying, foraging, and saving up food for the winter? That question coincided with another puzzling trend: Fungal infections rarely give mammals more than a mildly irritating case of athlete's foot or a yeast infection but are often deadly to plants, fish, and insects. At a crucial time in natural history, the world's 1.5 million species of molds, yeasts, rusts, and mushrooms, also might have been a vehicle for natural selection. In the aftermath of the meteor that carved out the Chicxulub crater on the Yucatan Peninsula, the Earth probably was a cool, shady place. Researchers last year discovered fossil evidence of a post-collision fungal spike, and in a world dense with potentially pathogenic fungi, warm-blooded animals might have had a unique advantage. In such a situation, every warm-blooded generation has a little advantage, and when the dust settles and the sun comes out again . . . the warm-blooded find themselves in a world with a lot more space, Casadevall said. Other evidence shows that the mass die-off didn't occur immediately after the collision, but about 300,000 years afterward -- raising the possibility that an intermediary factor, like fungi, could have played a part. The trouble with the theory, experts said, is that no one is sure whether the dinosaurs were warm- or cold-blooded. Smaller cold-blooded animals like turtles, lizards, snakes, and frogs were able to weather the mass extinction, indicating that size, not body temperature, may have been a deciding factor. And, while there is wide agreement that a massive meteor struck the Earth 65 million years ago, other theories suggest that increased volcanic activity could have played a role in the extinction. Stephen McLoughlin, a geologist from Queensland University of Technology in Australia who discovered evidence of the long-ago fungal explosion, said the spores that his group studied, which were preserved in a layer of coal in New Zealand, probably did not harm animals. He stated in an e-mail that he finds Casadevall's idea intriguing but, while this may have been the case, it is virtually impossible to test. Nonetheless, the main idea behind Casadevall's research -- that deadly fungi could have helped establish the age of the mammals -- is timely. Fungal infections are now emerging as an important force in nature again: Fungal diseases also may be contributing to the worldwide decline of the coral reefs, and appear to play a poorly understood role in the steady decline of amphibians. A study last year reported that a third of all amphibian species worldwide are facing extinction -- and while climate change, pollution, and habitat loss are all thought to play a role, many of the extinct and endangered frog species have been infected with the chtyrid fungus, which may interfere with their delicate, breathable skin, produce a toxin, or something else. Like everything in life, it wasn't just one thing that killed the dinosaurs, Casadevall said. In the case of the amphibians, you can imagine
[meteorite-list] AD - Naturesvault Auctions Ending Today
Dear list members, Just a quick note to let you know I have about 50 eBay auctions under seller name, naturesvault, ending in a few hours, many still at just 99 cents. I just got back late last night from another successful trip to Morocco. I will be posting several awesome specimens for silent bid directly to the list in a few days after I get caught up. Here are some of the best buys at the moment with low bids: NWA 2696 Howardite Individual 24 grams http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=6511908698ssPageName=STRK:MESE:IT ORIENTED Sikhote-Alin Individual 45.5 grams http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemrd=1item=6511911035ssPageName=STRK:MESE:IT These and more, including last week's new offering of the LL5, NWA 2383 and the remaining pieces of the Algerian pallasite. To see all offerings under, naturesvault, click on one of the above links and then click on View seller's other items. That, or go to eBay and search for items by seller, naturesvault. I will be listing new items tonight, including a new L3.8, NWA 2385. Best regards, Greg Hupe The Hupe Collection naturesvault (eBay) [EMAIL PROTECTED] IMCA 2185 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Blue Balls at Harper Lake
http://moisture.greenmuseum.org/projects/m2/offsite.html Well, it just wont stop raining here in Southern California. And some of the storms have been REALLY big gully washers. Not much to do but stay home, surf the net, or spin yarns. Here is a web site that I found interesting. Researchers out at Harper Lake in the Mojave Desert have placed brightly colored spheres in stream beds in an attempt to gauge the movement of sediment in that valley. Given all these recent storms, those blue balls should be all the way down to the Lake by now! Should you go to Harper Lake and find these Blue Balls on the shoreline, you should contact these researchers and let them know where you found their balls. The connection to meteorites is that many of us have had the same idea to purposely place marked rocks on dry lakebeds and to follow their movement over the years. (The theory being that where ever the traveling marked rocks collected, that is where you should search for meteorites;-) Were still finding on dry lakes BLACK GOLF BALLS from 1998, back when Paul Gessler was practicing his swing while calibrating his eyesight for distant black objects. :-) Bob V __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] the tooth, part 2
Hi again list.Concerning the tooth.I want to give credit to stan of goldnrocks for the tooth picture on my website.It really is a beauty.This is the most unpredictible sikote-alin I have ever seen.This piece is going to become world famous.I bet every dentist will approve of it.Or at leats 4 out of 5 dentists.I gotta keep with tradition.You can view it on my museum meteorite page,the last page.And that is the whole tooth. steve Steve R.Arnold, Chicago, IL, 60120 I. M. C. A. MEMBER #6728 Illinois Meteorites website url http://stormbringer60120.tripod.com http://members.ebay.com/aboutme/illinoismeteorites/ __ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Lost Package from Morocco
Never thought it would happen to me but it did. About a month ago I had apx 5kg box of Achondrites shipped to me from Mohamed Ait from Morocco It never arrived Mohamed is not sure if it got shipped to one of his other customers by accident . I posted a link to a picture of the shipment on my website . http://www.arn-meteorites.com I also have a bigger picture I can Email if someone has questions. The most beautiful black glossy crusted specimen anyone could want What a loss ! If anyone knows anything please contact me __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Finally a field nickel test
Suddenly I spotted a few stones with brightly pink patches of erythrite, a cobalt mineral created by weathering. Happily I started to collect theese rare specimens and showed it to my friends. I live about 6 hours from Cobalt, Ontario, where it is pretty easy to find erythrite specimens, most of which are pink crusts on cobalt and nickel minerals (although I have one piece with needle-like crystals). I was there last fall and collected lots of erythrite. I'd happily trade some Canadian erythrite for some meteorites... Jeffrey Shallit __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Harper Lake could get world's tallest towers
Well, its still raining here, so I thought Id pass along another news-related item about Harper Dry Lake. Actually, there are a lot of interesting tidbits about Harper Lake. History, too. Theres still these old buildings out there from when Howard Hughes built and flight tested his D2 fighter. Now, in its place, theres a bird sanctuary and a huge solar power plant. Still a lot of talk about turning Harper Valley into a SPACEPORT! Yup, think Ill start a Harper Dry Lake Post of the Day So, whats the connection to meteorites? Well, it was very early on that we prioritized dry lakes such as this one, areas that were under pressure for being developed, that had plans to be inundated with water (Rosamond), that access would be lost due to wilderness protection (Broadwell) or military base expansion (Superior Valley Silver Lake) to be the first areas to be searched for meteorites. Consider it as a volunteer environmental impact study. Thats why we called it meteorite-recovery! -- Sunday, October 12, 2004 Hinkley could get world's tallest towers Solar plants could result in construction of three 3,000-foot-tall chimneys By KELLY DONOVAN Staff Writer A German professor's invention could lead to the construction of two or more towers of power near Hinkley that would be twice as tall as the Empire State Building. A Los Angeles-based company is considering the Harper Dry Lake area as a possible site for a new type of solar power plant that is not yet in operation anywhere in the world. SolarMission Technologies Inc. wants to build three 200-megawatt solar plants, each with a 3,000-foot tower, at the chosen site, SolarMission Chief Financial Officer Chris Davey said. Before construction of the first so-called solar- chimney plant in the United States, a company linked to SolarMission will likely have already built one of them in Australia that would be identical to the plants planned here. Here's how the $350 million plants work: Sunshine heats air in a greenhouse-like space under a clear surface that is thousands of acres across. The hot air then flows up a tower that is 3,000 feet high and 400 feet wide. As it passes through the base of the tower, it turns turbines to generate electricity. The plants need to have 3,000-foot towers to efficiently generate 200 megawatt of electricity, Davey said. About 200,000 households could be powered with 200 megawatts. The plants would emit no pollution and wouldn't consume water for the production of electricity, Davey said. SolarMission would build two, three or four of the plants (the exact number hasn't been determined yet). After completion, each would have roughly 50 employees, some of them security personnel, Davey said. Also, he said about 1,000 temporary construction jobs would be needed to build each plant. The plants would be built one after another, not all at once. Davey said that with each taking 30 months to build, construction jobs would probably be available for several years. SolarMission has been looking at sites in Nevada, Texas, New Mexico and Arizona in addition to Harper Dry Lake. Texas, Arizona and Harper Dry Lake appear to be the forerunners in the site search, Davey said. The Harper area is an attractive site largely because it has the highest rating of anywhere in the world on the solar radiation index, which measures the amount of sunshine around the globe, Davey said. And the area has other attributes. It's extremely flat, there's access to the (power) grid, it's close to a labor force, and you're in an environment where development seems to be encouraged, he said. Davey said it's premature to discuss what land in the Harper area is of interest to him, but said, miles around that area are suitable. A 200-megawatt plant would supercede two solar complexes at Kramer Junction and Harper Dry Lake as the world's largest solar facilities. A prototype of a solar-chimney plant was tested in Spain from 1982 to 1989. It had a 600-foot high, 33-foot wide tower. Although the technology behind the plants is not used anywhere now, Davey said his company is confident in its design based on the prototype testing and extensive research. We've ... completed a huge amount of due diligence with contractors, engineering firms who've confirmed it can be done, he said. We believe it's extremely sound. Time Magazine named the plant's design one of the world's best inventions in a 2002 issue. Because the project is in such an early stage, SolarMission hasn't been in contact with government agencies about it yet. So, will they allow a 3,000-foot tower? Federal Aviation Administration spokesman William Shumann said his agency generally doesn't restrict the height of towers if they're not too close to airports. Harper Dry Lake isn't near an airport. Jim Squire, a senior associate planner for San Bernardino County, said the maximum height for any tower in the county is 199
[meteorite-list] Ad- olivine diogenite slices
Dear list, olivine diogenites are probably not very spectacular new. But perhaps I have some interesting offers for all collectors who have bought nothing of this rare material till now because it was too expensive or too ugly. The olivine diogenites from the NWA strewnfields are extremely difficult to cut and for this reason the pieces are mostly offered in yellow brown fragments. If you try to cut the pieces you have sometimes only crumbs and dust as the result of your work. With a heavy cut loss I have sawed a small quantity of nice slices and endpieces. In addition, the larger slices are polished and I could see first time how this interesting meteorite looks from inside. For me it isn't the ugliest meteorite in the world now any more. And my price is also very attractive. All orders are processed in the order of arriving. I still ask all interested collectors of my coming soon meteorites from one of my last offers for a little patience. I wait for the NWA numbers at the moment. and I will make all pieces available as soon as possible. Best wishes, Stefan SR-Meteorite I.M.C.A. Member#3368 Email: [EMAIL PROTECTED] Website url: http://www.meteoriten.com/ Newsletter: [EMAIL PROTECTED] Stefan Ralew Kunibertstrasse 29 12524 Berlin Germany __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ad - Weekly Rare Material Special!
Dear List, This week I would like to introduce NWA 3145, a rare primitive achondrite (H7). I have made about 140 grams available on ebay all at once, when it is gone I will have no more. starting at just $32.50 a gram with a buy-it-now price of only $35.00 a gram, this is the lowest price you will find an H7 anywhere. Some collectors know good prices when they see them as pieces are already selling and the auctions were just put up. You can view NWA 3145 at the following link: http://members.ebay.com/ws2/eBayISAPI.dll?ViewUserPageuserid=raremeteorites Thank you for looking and if you are bidding, good luck. Adam Hupe The Hupe Collection Team LunarRock IMCA 2185 [EMAIL PROTECTED] __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite hunting in Spain vs. USA deserts
John Gwilliam wrote: The die-hard hunters have developed a simple philosophy just dig it. That's the policy I have - you never know when you'll find a nice gold nugget or other valuable items. Martin Altmann wrote: as in Spain there is the only desert in Europe, the Desierto de Tabernas. Never was there. On the pictures I saw from, I couldn't find a suitable terrain. I was afraid that would be the case. :-( But you never know, it may be worth the struggle as I hear the Glorieta Mountain area is very steep in areas... In Europe everything is full of metal and slags. Thousands years of settlement, agriculture, metal melting, wars - if one only thinks how much metal the last two world wars pumped in the soil. You'll find everything from Roman coins, medieavel or antique slags, bullets from Thirty years war, nails from bronze age, but no meteorites. Sounds like stuff worth digging, but I'm sure there are a lot of legal problems in such instances. Thousand year old trash doesn't bother me, but there are some area's I woudn't bother detecting (but in such cases there are rewards in doing so). Happy Meteorites, Mark __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Re: [meteorite_hunters] Meteorite hunting in Spain(was First meteorites)
Bob Verish wrote: Here is a link to an article that I wrote about the successful meteorite-recovery program in Spain: http://meteorite-recovery.tripod.com/2004/jul04.htm There are many links from those web pages, so you should find some good information there. Thanks Bob - very interesting. There was a good article on fireball networks in (I think) ST magazine about a year back. I'm wondering whether new cheaper technology is making the development of an amateur network possible what would be a good distribution of stations and how many suitable. (P.S. - regarding work being done on a measure how good a region will be for meteorite recovery, I like to think that all of our field efforts in AZ-CA-NV are working to just that same goal;-) Keep up the great work! Have White's - Will Travel Mark Vail, AZ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The Art of Collecting Meteorites!
Hi List, What can I say that hasn't already been said? Three thumbs, way, way up! Happy collecting, a very happy Mark in Vail, AZ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Another lecture bites the dust
Dear List; I have just presented my annual winter lecture for meteorite, petrified wood, and other collectibles of SW Wyoming. I had a crowd of 106 turn out at the local library to hear me ramble back and forth on meteorites, meteorite books, wood, wood books, BLM collecting rules, private and public land issues, GPS datum, maps, and finished up with identifying about 50 rocks for folks. You all should try a community event as this. I am doing another lecture in Green River next month by popular demand. Pretty inspiring to have an attendance as this. Very best, Dave F. IMCA #3864 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Argentera change name - for who have buy
Hello I have received the information the Argentera meteorite change name in Lago Valscura, the meteorite exit in the next Met.Bulletin. Matteo = M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30030 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info International Meteorite Collectors Association #2140 MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ ___ Nuovo Yahoo! Messenger: E' molto più divertente: Audibles, Avatar, Webcam, Giochi, Rubrica Scaricalo ora! http://it.messenger.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
