[meteorite-list] R: how many lunar/martian meteorites?
Thank you for your kind answer! Francesco! __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Battle Mountain Field report / cold finds while hunting for hot stones
Hi Jim, listees, in 1994 the town Broken Hill in the Australian Outback was shaken by a super-sonic sound and a meteor was seen crossing the sky. As it happens so often, most people believed that the rock would have fallen somewhere nearby and hundreds of people went out and searched for it in the semi-desert. Initially, nothing was found, but a persistent hunter eventually discovered a 34 kg meteorite some 20 miles out of town that had been there for thousands of years. It was eventually classified as a L5 Chondrite and named 'Broken Hill' and I'm the proud owner of an almost 3 kg slice, the largest mass in private hands. An additional bonus is the fact that after living in Broken Hill for the last 17 years it has become my second hometown. My first hometown was Gutersloh in Germany where I spent my youth and where on the 17th of April 1851 a 1 kg meteorite was seen falling out of the sky. It was classified as a H3/4 and named 'Gutersloh' and I'm the proud owner of a 0.065 g 'mass'. Now who can beat that? :) Cheers Werner Schroer Australia what would be odd be while looking for a fresh fall, an old Fall is found??? has that ever happened? Greg I think your popcorn bag blew up! it's raining popcorn here I just started my second bag ;) Jim Jim Wooddell - Mobile Adam Hupe raremeteori...@yahoo.com wrote: I have not seen any of this material first-hand but I was thinking the same thing when I saw Bob Verish's images. Perhaps it rained in Northern Nevada or many times fresh falls take on a brownish hue. If the miner's stone was found within a few hours of the fall, then I would think the stones have a natural brownish hue or it could be the white balance is off on the digital camera. Happy hunting, Adam - Original Message - From: Mike Tettenborn t...@rogers.com To: wahlpe...@aol.com Cc: meteorite-list@meteoritecentral.com Sent: Wednesday, September 5, 2012 12:40 PM Subject: Re: [meteorite-list] Battle Mountain Field report / strewn field conditions / etc. I had the exact same impression. This one looks like a somewhat weathered NWA. Could be the lighting. But, Adam Hupe reported multiple finds so far so this could be legit. tett Mike Tettenborn Owen Sound, Ontario, Canada t...@rogers.com On 2012-09-05, at 2:49 PM, wahlpe...@aol.com wrote: Hi All, I have posted a few pictures of the strewnfield and a large chondrite on my website.A couple of the roads in the area will be posted with No trespassing signs later this week. The reason is for mine safety regulations.The project supervisor was very nice and explained the biggest concern is safety.If anything was to happen on the mining clam, the site would be shut down. Thanks, Sonny http://www.nevadameteorites.com/nevadameteorites/Battle_Mt.html __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Battle Mountain color
I agree with Dolores too and you would really need to see the pieces in person. Some of you might recall how stones from some fresh falls can have part of the stone with a shiny browner coloured crust. Oum Dreyga was one that had quite a few stones like that and I think Bassikounou too. It has been discussed on the list in the past. Also, if you look around the edge of the stone Sonny pictured, you will see it appears black in those areas. Cheers, Jeff -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of D. Hill Sent: Thursday, 6 September 2012 6:14 AM To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Battle Mountain color I agree with Adam. I, too, have noticed that images of some meteorites, including fresh falls, may appear black or brownish depending on the lighting conditions (type, white balance, flash/no flash, angle) and camera exposure... even though they may look black to the naked eye. I think all would agree it is best to see meteorites in person. -Dolores Hill On 9/5/2012 12:51 PM, Adam Hupe wrote: I have not seen any of this material first-hand but I was thinking the same thing when I saw Bob Verish's images. Perhaps it rained in Northern Nevada or many times fresh falls take on a brownish hue. If the miner's stone was found within a few hours of the fall, then I would think the stones have a natural brownish hue or it could be the white balance is off on the digital camera. Happy hunting, Adam - Original Message - From: Mike Tettenbornt...@rogers.com To: wahlpe...@aol.com Cc: meteorite-list@meteoritecentral.com Sent: Wednesday, September 5, 2012 12:40 PM Subject: Re: [meteorite-list] Battle Mountain Field report / strewn field conditions / etc. I had the exact same impression. This one looks like a somewhat weathered NWA. Could be the lighting. But, Adam Hupe reported multiple finds so far so this could be legit. tett Mike Tettenborn Owen Sound, Ontario, Canada t...@rogers.com On 2012-09-05, at 2:49 PM, wahlpe...@aol.com wrote: Hi All, I have posted a few pictures of the strewnfield and a large chondrite on my website.A couple of the roads in the area will be posted with No trespassing signs later this week. The reason is for mine safety regulations.The project supervisor was very nice and explained the biggest concern is safety.If anything was to happen on the mining clam, the site would be shut down. Thanks, Sonny http://www.nevadameteorites.com/nevadameteorites/Battle_Mt.html __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Villalbeto de la Peña Contributed by: José Vicente Casado http://www.tucsonmeteorites.com/mpod.asp __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Battle Mountain color
The color differences are due to variations in the magnetite contents in the crusts of opposite sides. These, in turn, are controlled by the supply of atmospheric oxygen and the temperature of the oxidation process. A temporary high vacuum on a trailing side, for example, reduces or blocks the supply of atmospheric oxygen to the reaction. If you scroll down the page you will see a good example of fusion crust color variation on a Buzzard Coulee specimen: http://www.meteorite-recon.com/en/Meteorite_fusion_crust_2.htm Cheers Svend www.meteorite-recon.com Jeff Kuyken i...@meteorites.com.au hat am 6. September 2012 um 11:20 geschrieben: I agree with Dolores too and you would really need to see the pieces in person. Some of you might recall how stones from some fresh falls can have part of the stone with a shiny browner coloured crust. Oum Dreyga was one that had quite a few stones like that and I think Bassikounou too. It has been discussed on the list in the past. Also, if you look around the edge of the stone Sonny pictured, you will see it appears black in those areas. Cheers, Jeff -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of D. Hill Sent: Thursday, 6 September 2012 6:14 AM To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Battle Mountain color I agree with Adam. I, too, have noticed that images of some meteorites, including fresh falls, may appear black or brownish depending on the lighting conditions (type, white balance, flash/no flash, angle) and camera exposure... even though they may look black to the naked eye. I think all would agree it is best to see meteorites in person. -Dolores Hill On 9/5/2012 12:51 PM, Adam Hupe wrote: I have not seen any of this material first-hand but I was thinking the same thing when I saw Bob Verish's images. Perhaps it rained in Northern Nevada or many times fresh falls take on a brownish hue. If the miner's stone was found within a few hours of the fall, then I would think the stones have a natural brownish hue or it could be the white balance is off on the digital camera. Happy hunting, Adam - Original Message - From: Mike Tettenbornt...@rogers.com To: wahlpe...@aol.com Cc: meteorite-list@meteoritecentral.com Sent: Wednesday, September 5, 2012 12:40 PM Subject: Re: [meteorite-list] Battle Mountain Field report / strewn field conditions / etc. I had the exact same impression. This one looks like a somewhat weathered NWA. Could be the lighting. But, Adam Hupe reported multiple finds so far so this could be legit. tett Mike Tettenborn Owen Sound, Ontario, Canada t...@rogers.com On 2012-09-05, at 2:49 PM, wahlpe...@aol.com wrote: Hi All, I have posted a few pictures of the strewnfield and a large chondrite on my website.A couple of the roads in the area will be posted with No trespassing signs later this week. The reason is for mine safety regulations.The project supervisor was very nice and explained the biggest concern is safety.If anything was to happen on the mining clam, the site would be shut down. Thanks, Sonny http://www.nevadameteorites.com/nevadameteorites/Battle_Mt.html __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Two separate extinctions brought end to dinosaur era ?
Dinosaur die out might have been second of two closely timed extinctions by Vince Stricherz, University of Washington, September 5, 2012 http://www.washington.edu/news/2012/09/05/dinosaur-die-out-might-have-been-second-of-two-closely-timed-extinctions/ Two separate extinctions brought end to dinosaur era. NewScientist, August 3, 2012, http://www.newscientist.com/article/dn22137-two-separate-extinctions-brought-end-to-dinosaur-era.html Dinosaur die-out might have been second of two closely timed extinctions, PhysOrg, Sept. 5, 2012. http://phys.org/news/2012-09-dinosaur-die-out-extinctions.html http://scienceblog.com/56424/dinosaur-die-out-might-have-been-second-of-two-closely-timed-extinctions/ The paper is Tobin, T. S., P. D. Ward, E. J. Steig, E. B. Olivero, I. A. Hilburn, R. N. Mitchell, M. R. Diamond, T. D. Raub, and J. L. Kirschvink, 2012, Extinction patterns, δ18 O trends, and magnetostratigraphy from a southern high-latitude Cretaceous– Paleogene section: Links with Deccan volcanism. Palaeogeography, Palaeoclimatology, Palaeoecology. vol. 350–352, pp. 180–188. http://www.sciencedirect.com/science/article/pii/S0031018212003847 Best wishes, Paul H. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Battle Mountain color
I think the color is close, based on the hand holding it. And it has been secured by a trusted expert! Jim Jim Wooddell - Mobile Jeff Kuyken i...@meteorites.com.au wrote: I agree with Dolores too and you would really need to see the pieces in person. Some of you might recall how stones from some fresh falls can have part of the stone with a shiny browner coloured crust. Oum Dreyga was one that had quite a few stones like that and I think Bassikounou too. It has been discussed on the list in the past. Also, if you look around the edge of the stone Sonny pictured, you will see it appears black in those areas. Cheers, Jeff -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of D. Hill Sent: Thursday, 6 September 2012 6:14 AM To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] Battle Mountain color I agree with Adam. I, too, have noticed that images of some meteorites, including fresh falls, may appear black or brownish depending on the lighting conditions (type, white balance, flash/no flash, angle) and camera exposure... even though they may look black to the naked eye. I think all would agree it is best to see meteorites in person. -Dolores Hill On 9/5/2012 12:51 PM, Adam Hupe wrote: I have not seen any of this material first-hand but I was thinking the same thing when I saw Bob Verish's images. Perhaps it rained in Northern Nevada or many times fresh falls take on a brownish hue. If the miner's stone was found within a few hours of the fall, then I would think the stones have a natural brownish hue or it could be the white balance is off on the digital camera. Happy hunting, Adam - Original Message - From: Mike Tettenbornt...@rogers.com To: wahlpe...@aol.com Cc: meteorite-list@meteoritecentral.com Sent: Wednesday, September 5, 2012 12:40 PM Subject: Re: [meteorite-list] Battle Mountain Field report / strewn field conditions / etc. I had the exact same impression. This one looks like a somewhat weathered NWA. Could be the lighting. But, Adam Hupe reported multiple finds so far so this could be legit. tett Mike Tettenborn Owen Sound, Ontario, Canada t...@rogers.com On 2012-09-05, at 2:49 PM, wahlpe...@aol.com wrote: Hi All, I have posted a few pictures of the strewnfield and a large chondrite on my website.A couple of the roads in the area will be posted with No trespassing signs later this week. The reason is for mine safety regulations.The project supervisor was very nice and explained the biggest concern is safety.If anything was to happen on the mining clam, the site would be shut down. Thanks, Sonny http://www.nevadameteorites.com/nevadameteorites/Battle_Mt.html __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Battle Mountain Field report / cold finds while hunting for hot stones
Great post! Thanks! Jim Jim Wooddell - Mobile WS Schroer schr...@bigpond.com wrote: Hi Jim, listees, in 1994 the town Broken Hill in the Australian Outback was shaken by a super-sonic sound and a meteor was seen crossing the sky. As it happens so often, most people believed that the rock would have fallen somewhere nearby and hundreds of people went out and searched for it in the semi-desert. Initially, nothing was found, but a persistent hunter eventually discovered a 34 kg meteorite some 20 miles out of town that had been there for thousands of years. It was eventually classified as a L5 Chondrite and named 'Broken Hill' and I'm the proud owner of an almost 3 kg slice, the largest mass in private hands. An additional bonus is the fact that after living in Broken Hill for the last 17 years it has become my second hometown. My first hometown was Gutersloh in Germany where I spent my youth and where on the 17th of April 1851 a 1 kg meteorite was seen falling out of the sky. It was classified as a H3/4 and named 'Gutersloh' and I'm the proud owner of a 0.065 g 'mass'. Now who can beat that? :) Cheers Werner Schroer Australia what would be odd be while looking for a fresh fall, an old Fall is found??? has that ever happened? Greg I think your popcorn bag blew up! it's raining popcorn here I just started my second bag ;) Jim Jim Wooddell - Mobile Adam Hupe raremeteori...@yahoo.com wrote: I have not seen any of this material first-hand but I was thinking the same thing when I saw Bob Verish's images. Perhaps it rained in Northern Nevada or many times fresh falls take on a brownish hue. If the miner's stone was found within a few hours of the fall, then I would think the stones have a natural brownish hue or it could be the white balance is off on the digital camera. Happy hunting, Adam - Original Message - From: Mike Tettenborn t...@rogers.com To: wahlpe...@aol.com Cc: meteorite-list@meteoritecentral.com Sent: Wednesday, September 5, 2012 12:40 PM Subject: Re: [meteorite-list] Battle Mountain Field report / strewn field conditions / etc. I had the exact same impression. This one looks like a somewhat weathered NWA. Could be the lighting. But, Adam Hupe reported multiple finds so far so this could be legit. tett Mike Tettenborn Owen Sound, Ontario, Canada t...@rogers.com On 2012-09-05, at 2:49 PM, wahlpe...@aol.com wrote: Hi All, I have posted a few pictures of the strewnfield and a large chondrite on my website.A couple of the roads in the area will be posted with No trespassing signs later this week. The reason is for mine safety regulations.The project supervisor was very nice and explained the biggest concern is safety.If anything was to happen on the mining clam, the site would be shut down. Thanks, Sonny http://www.nevadameteorites.com/nevadameteorites/Battle_Mt.html __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] MRO HiRISE Images - September 5, 2012
MARS RECONNAISSANCE ORBITER HIRISE IMAGES September 5, 2012 o Stratigraphy in Crommelin Crater http://hirise.lpl.arizona.edu/ESP_017343_1850 Crommelin Crater in northwest Meridiani Planum is a large structure which contains light-toned material with layered and stepped buttes. o Sediments inside Aram Crater http://hirise.lpl.arizona.edu/ESP_027998_1825 Aram Chaos is characterized by chaotic terrains overlain by approximately 900 meters of sediments within the 280 kilometer diameter Aram Crater. o Lava Flow Front in Elysium Planitia http://hirise.lpl.arizona.edu/ESP_028004_1825 This rough lava is surrounded by smoother lava with abundant inflation features. o Bits and Pieces... http://hirise.lpl.arizona.edu/ESP_028269_1755 Curiosity's sky crane impact disturbed bright dust, revealing the darker rocky substrate. All of the HiRISE images are archived here: http://hirise.lpl.arizona.edu/ Information about the Mars Reconnaissance Orbiter is online at http://www.nasa.gov/mro. The mission is managed by NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, for the NASA Science Mission Directorate, Washington, D.C. Lockheed Martin Space Systems, of Denver, is the prime contractor and built the spacecraft. HiRISE is operated by the University of Arizona. Ball Aerospace and Technologies Corp., of Boulder, Colo., built the HiRISE instrument. __ 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] Hadley Crater Provides Deep Insight Into Martian Geology (Mars Express)
http://www.esa.int/esaCP/SEM8BQ7YJ6H_index_0.html Hadley Crater provides deep insight into martian geology European Space Agency 6 September 2012 Recently engaged in providing support to the successful landing of NASA's Mars Science Laboratory's Curiosity rover, ESA's Mars Express has now returned to its primary mission of studying the diverse geology and atmosphere of the 'Red Planet' from orbit. Earlier this year, the spacecraft observed the 120 km wide Hadley Crater, providing a tantalising insight into the martian crust. The images show multiple subsequent impacts within the main crater wall, reaching depths of up to 2600 m below the surrounding surface. [Image] Hadley Crater perspective view This region imaged on 9 April 2012 by the High Resolution Stereo Camera on Mars Express shows the crater which lies to the west of the Al-Qahira Vallis in the transition zone between the old southern highlands and the younger northern lowlands. Hadley is named after the British lawyer and meteorologist George Hadley (1685-1768) whose name was also given to the Hadley cell, a circulation system in the Earth's atmosphere, which transports heat and moisture from the tropics up to higher latitudes. The images show that Hadley Crater was struck multiple times by large asteroids and/or comets after its initial formation and subsequent infilling with lava and sediments. Some of these later impacts have also been partly buried, with subtle hints of a number of crater rims to the west (top), and wrinkle ridges to the north (right side) of the main crater floor as shown in the first image at the top of the page. [Image] Hadley Crater in context Again, in the first image (top of the page), the southern (left) side, the crater appears shallower than the opposite side. This difference can be explained by an erosion process known as mass wasting. This is where surface material moves down a slope under the force of gravity. Mass wasting can be initially started by a range of processes including earthquakes, erosion at the base of the slope, ice splitting the rocks or water being introduced into the slope material, In this case there is no clear indication which process caused it, or over what timescales this may have occurred. [Image] Hadley Crater perspective view Of particular interest to scientists studying the geology of Mars are the ejecta of the smaller craters within Hadley. Two of them, one to the west (top), and the deepest one in the middle of the first image, show evidence for volatiles, possibly water ice beneath the surface. With the impact that forms the craters, this ice would mix with surrounding materials to form a kind of 'mud', which would then spread over the surface as ejecta. [Image] Topographical view of Hadley crater Scientists believe these volatiles which were excavated by the impacts, may indicate the presence of ice to a depth of around hundreds of metres, this being the difference in depth between the surface and the depths of the two craters. This deep view into the martian crust within the walls of Hadley Crater provides scientists an insight into the history of Mars. A history which rovers like those currently on the Red Planet and others which follow will doubtless continue to investigate. [Image] 3D anaglyph view of Hadley crater __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Dawn Journal
Thanks, Ron, for sharing Dr.Rayman's eloquent journal log. Looking forward to Dawn's next adventure at Ceres, including spectral analysis that might shed light on whether there are Ceres-derived meteorites here on Earth. Best, Daniel Daniel Noyes www.moonmarsrocks.com -- Message: 11 Date: Wed, 5 Sep 2012 15:14:01 -0700 (PDT) From: Ron Baalke baa...@zagami.jpl.nasa.gov Subject: [meteorite-list] Dawn Journal - September 5, 2012 To: meteorite-list@meteoritecentral.com (Meteorite Mailing List) Message-ID: 201209052214.q85me1jk024...@zagami.jpl.nasa.gov Content-Type: text/plain; charset=us-ascii http://dawn.jpl.nasa.gov/mission/journal_09_05_12.asp Dawn Journal Dr. Marc Rayman September 5, 2012 Dear Marvestalous Readers, An interplanetary spaceship left Earth in 2007. Propelling itself gently and patiently through the solar system with a blue-green beam of xenon ions, it gradually spiraled away from the sun. It sailed past Mars in 2009, its sights set on more distant and exotic destinations. In July 2011, it gracefully and elegantly entered orbit around the second most massive resident of the main asteroid belt, Vesta. It spent more than 13 months there scrutinizing the gigantic protoplanet with all of its sensors and maneuvering to different orbits to optimize its investigations, making myriad marvelous discoveries. After they traveled together around the sun for 685 million kilometers (426 million miles), the ship left orbit in September 2012 and is now headed for dwarf planet Ceres, the largest body between the sun and Neptune not yet visited by a spacecraft. No other probe has ever been capable of the amazing feats Dawn is performing, exploring two of the largest uncharted worlds in the inner solar system. The population of the main asteroid belt numbers in the millions. Vesta is such a behemoth that Dawn has now single-handedly examined about eight percent of the mass of the entire belt. And by the time it finishes at the colossus Ceres, it will have investigated around 40 percent. The expedition to Vesta has produced riches beyond everyone's hopes. With 31,000 photos, 20 million visible and infrared spectra, and thousands of hours of neutron spectra, gamma ray spectra, and gravity measurements, Dawn has revealed to humankind a unique and fascinating member of the solar system family. More akin to Earth and the other terrestrial planets than to typical asteroids, Vesta is not just another chunk of rock. It displays complex geology and even has a dense iron-nickel core, a mantle, and a crust. Its heavily cratered northern hemisphere tells the story of more than 4.5 billion years of battering in the rough and tumble asteroid belt. Its southern hemisphere was wiped clean, resurfaced by an enormous impact at least two billion years ago and an even greater collision one billion years ago. These events excavated the 400-kilometer (250-mile) Veneneia and 500-kilometer (310-mile) Rheasilvia basins. The larger basin has a mountain at the center that towers more than twice the height of Mt. Everest; indeed, it soars higher than all but one of the mountains known in the solar system. The impacts were so forceful, they nearly destroyed Vesta. The fierce shock reverberated through the entire body and left as scars an extraordinary network of vast troughs near the equator, some hundreds of kilometers (miles) long and 15 kilometers (10 miles) wide. The powerful impacts liberated tremendous amounts of material, flinging rocks far out into space, some of which eventually made it all the way to Earth. It is astonishing that about six percent of the meteorites found here came from Vesta. We have some meteorites from Mars, and we have some meteorites from the moon, but we have far, far more that originated in those impacts at Vesta, so distant in time and space. Vesta, Mars, and the moon are the only celestial bodies identified as the source of specific meteorites. Scientists will spend years productively poring through Dawn's fabulous findings and learning what secrets they hold about the dawn of the solar system, and many more people will continue to marvel at the spectacular sights of this alien world. But the emissary from Earth has completed its assignment there and moved on. It has spent most of its time since the previous log using its ion propulsion system to climb higher and higher above Vesta. This departure spiral is the mirror image of the approach spiral the robotic adventurer followed last year. The unique method of entering and leaving orbit is one of the many intriguing characteristics of a mission that uses ion propulsion. Without that advanced technology, this ambitious deep space adventure would be impossible. As Dawn ascended, Vesta's gravitational grip grew weaker and weaker. At some point along its spiral, the explorer was far enough and moving fast enough that Vesta could no longer hold it in orbit. As smoothly and
[meteorite-list] Thin sections for sale $65 and under!
I have several thin sections for sale at great prices - likely the lowest you will find for them. All are uncovered to allow for study. 3 Allende$65 each 3 NWA 6870 (CV3) $60 each 1 Chergach $60 1 NWA 6423 (CV3) $55 While they last. Greg Catterton www.wanderingstarmeteorites.com On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites On Facebook: http://www.facebook.com/WanderingStarMeteorites __ 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] Website Updates + added some rare specimens for sale
Hi List. I'm a little late with the Website Updates for September 2012. It is fully completed now. I have added 4 small super rare hard to acquire meteorite specimens for those looking for something that is not easy to come across. Also for any astronomers out there you will see a couple of items at the bottom of my Meteorite Sales page listed on eBay (Atik 5 position manual filter wheel and a Meade 4 piece 1.25 CCD filter set with Red, Green, Blue, and IR filter) * Here is the link to my Website Sales page: http://www.ctreasurescwonders.com/meteorite_sales.html The Black Hole Mystery Video of the Month --- A neat video Tour of UCLA's meteorite collection/gallery, with some mouth watering specimens!. http://www.ctreasurescwonders.com/secret_video.html * The Flash from the Past Photo of the Month is up. Show a great image with info of the impact sites on the planet Jupiter during the 1994 collision with Comet Shoemaker-Levy 9. http://www.ctreasurescwonders.com/astro_met_news_back-up.html * Lastly, the Image of the Month is also up. This is one of the largest diffuse nebulae in our skies and very beautiful as well that being the Carina Nebula . http://www.ctreasurescwonders.com/menu_1.html Thank you and enjoy Sincerely Don Merchant Founder-Cosmic Treasures Celestial Wonders www.ctreasurescwonders.com IMCA #0960 __ 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] NASA Mars Rover Curiosity Begins Arm-Work Phase
http://www.jpl.nasa.gov/news/news.php?release=2012-279 NASA Mars Rover Curiosity Begins Arm-Work Phase Jet Propulsion Laboratory September 6, 2012 [Images] * Camera on Curiosity's Arm as Seen by Camera on Mast #1 * A Rover's Journey Begins #2 * Relics of Rover's Landing #3 * Dissecting the Scene of Sky Crane Crash #4 * Curiosity's Robotic Arm #5 * Tools at Curiosity's 'Fingertips' #6 * Curiosity's Work Bench #7 * Flexing Curiosity's Arm #8 PASADENA, Calif. -- After driving more than a football field's length since landing, NASA's Mars rover Curiosity is spending several days preparing for full use of the tools on its arm. Curiosity extended its robotic arm Wednesday in the first of six to10 consecutive days of planned activities to test the 7-foot (2.1-meter) arm and the tools it manipulates. We will be putting the arm through a range of motions and placing it at important 'teach points' that were established during Earth testing, such as the positions for putting sample material into the inlet ports for analytical instruments, said Daniel Limonadi of NASA's Jet Propulsion Laboratory in Pasadena, Calif., lead systems engineer for Curiosity's surface sampling and science system. These activities are important to get a better understanding for how the arm functions after the long cruise to Mars and in the different temperature and gravity of Mars, compared to earlier testing on Earth. Since the Mars Science Laboratory spacecraft placed Curiosity inside Mars' Gale Crater on Aug. 5 PDT (Aug. 6 EDT), the rover has driven a total of 358 feet (109 meters). The drives have brought it about one-fourth of the way from the landing site, named Bradbury Landing, to a location selected as the mission's first major science destination, Glenelg. We knew at some point we were going to need to stop and take a week or so for these characterization activities, said JPL's Michael Watkins, Curiosity mission manager. For these checkouts, we need to turn to a particular angle in relation to the sun and on flat ground. We could see before the latest drive that this looked like a perfect spot to start these activities. The work at the current location will prepare Curiosity and the team for using the arm to place two of the science instruments onto rock and soil targets. In addition, the activities represent the first steps in preparing to scoop soil, drill into rocks, process collected samples and deliver samples into analytical instruments. Checkouts in the next several days will include using the turret's Mars Hand Lens Imager to observe its calibration target and the Canadian-built Alpha Particle X-Ray Spectrometer to read what chemical elements are present in the instrument's calibration target. We're still learning how to use the rover. It's such a complex machine -- the learning curve is steep, said JPL's Joy Crisp, deputy project scientist for the Mars Science Laboratory Project, which built and operates Curiosity. After the arm characterization activities at the current site, Curiosity will proceed for a few weeks eastward toward Glenelg. The science team selected that area as likely to offer a good target for Curiosity's first analysis of powder collected by drilling into a rock. We're getting through a big set of characterization activities that will allow us to give more decision-making authority to the science team, said Richard Cook, Mars Science Laboratory project manager at JPL. Curiosity is one month into a two-year prime mission on Mars. It will use 10 science instruments to assess whether the selected study area ever has offered environmental conditions favorable for microbial life. JPL manages the mission for NASA's Science Mission Directorate in Washington. More information about Curiosity is online at: http://www.jpl.nasa.gov/msl , http://www.nasa.gov/msl and http://mars.jpl.nasa.gov/msl http://mars.jpl.nasa.gov/msl. You can follow the mission on Facebook and on Twitter at: http://www.facebook.com/marscuriosity and http://www.twitter.com/marscuriosity . Guy Webster / D.C. Agle 818-354-5011 Jet Propulsion Laboratory, Pasadena, Calif. guy.webs...@jpl.nasa.gov Dwayne Brown 202-358-1726 NASA Headquarters, Washington dwane.c.br...@nasa.gov 2012-279 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Battle Mountain Field report / cold finds while hunting for hot stones
Hi Gary, listees, http://www.flickr.com/photos/86794456@N06/ There you'll find some photos of my 'Broken Hill' slice. It hasn't been polished and it certainly wouldn't win a beauty contest, but that wasn't the reason why I bought it. I've never uploaded a photo to that website before, so I'm not sure whether it can be accessed by everyone without joining Flickr. Cheers Werner Schroer Australia -Original Message- From: Gary Fujihara Sent: Friday, September 07, 2012 12:38 AM To: WS Schroer Subject: Re: [meteorite-list] Battle Mountain Field report / cold finds while hunting for hot stones Not me Werner! Treat us to a photo of your Broken Hill slab someday, will you mate? gary On Sep 5, 2012, at 8:22 PM, WS Schroer schr...@bigpond.com wrote: Hi Jim, listees, in 1994 the town Broken Hill in the Australian Outback was shaken by a super-sonic sound and a meteor was seen crossing the sky. As it happens so often, most people believed that the rock would have fallen somewhere nearby and hundreds of people went out and searched for it in the semi-desert. Initially, nothing was found, but a persistent hunter eventually discovered a 34 kg meteorite some 20 miles out of town that had been there for thousands of years. It was eventually classified as a L5 Chondrite and named 'Broken Hill' and I'm the proud owner of an almost 3 kg slice, the largest mass in private hands. An additional bonus is the fact that after living in Broken Hill for the last 17 years it has become my second hometown. My first hometown was Gutersloh in Germany where I spent my youth and where on the 17th of April 1851 a 1 kg meteorite was seen falling out of the sky. It was classified as a H3/4 and named 'Gutersloh' and I'm the proud owner of a 0.065 g 'mass'. Now who can beat that? :) Cheers Werner Schroer Australia what would be odd be while looking for a fresh fall, an old Fall is found??? has that ever happened? Greg I think your popcorn bag blew up! it's raining popcorn here I just started my second bag ;) Jim Jim Wooddell - Mobile Adam Hupe raremeteori...@yahoo.com wrote: I have not seen any of this material first-hand but I was thinking the same thing when I saw Bob Verish's images. Perhaps it rained in Northern Nevada or many times fresh falls take on a brownish hue. If the miner's stone was found within a few hours of the fall, then I would think the stones have a natural brownish hue or it could be the white balance is off on the digital camera. Happy hunting, Adam - Original Message - From: Mike Tettenborn t...@rogers.com To: wahlpe...@aol.com Cc: meteorite-list@meteoritecentral.com Sent: Wednesday, September 5, 2012 12:40 PM Subject: Re: [meteorite-list] Battle Mountain Field report / strewn field conditions / etc. I had the exact same impression. This one looks like a somewhat weathered NWA. Could be the lighting. But, Adam Hupe reported multiple finds so far so this could be legit. tett Mike Tettenborn Owen Sound, Ontario, Canada t...@rogers.com On 2012-09-05, at 2:49 PM, wahlpe...@aol.com wrote: Hi All, I have posted a few pictures of the strewnfield and a large chondrite on my website.A couple of the roads in the area will be posted with No trespassing signs later this week. The reason is for mine safety regulations.The project supervisor was very nice and explained the biggest concern is safety.If anything was to happen on the mining clam, the site would be shut down. Thanks, Sonny http://www.nevadameteorites.com/nevadameteorites/Battle_Mt.html __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Gary Fujihara Big Kahuna Meteorites PO Box 4175, Hilo,
