[meteorite-list] Are Mars Meteorites Magnetic?
Hello All, Carl B. Agee wrote: Yes, but not from native iron-nickel, which is normally absent in SNCs, instead from ferrimagnetic* minerals such as pyrrhotite Fe7S8 and magnetite Fe3O4. See also: Morris R.V. et al. (1998) Lepidocrocite to maghemite to hematite:Pathway to magnetic and hematitic Martian soil (Meteoritics 33-4, 1998, pp.743-751). Macri M. et al. (2004) Melt inclusions in augite from nakhlites: A key for the comprehension of Martian magnetism. (MAPS 39-8, 2004, A060). Knudsen J.M. (1992) Magnetic phases in SNC meteorites and on Mars (Meteoritics 27-3, 1992, A244): The SNC meteorites ... contain a ferrimagnetic* phase (titano- magnetite). Weiss B.P. et al. (2001) Records of an ancient martian magnetic field in ALH 84001 (abs. Lun. Planet. Sci. 32, #1244, Lunar and Planetary Institute, Houston, Texas, USA, CD-ROM). Regards, Bernd __ HAPPY HOLIDAYS!! 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
Huckitta http://www.tucsonmeteorites.com/mpod.asp __ HAPPY HOLIDAYS!! 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] Wanted: Bulk Composition Table/spreadsheet
Hi all! I am looking to find a bulk composition table, if there is such a thing for iron meteorites. I am looking specifically for INAA or ICP-MS analysis for the following analytic symbols: Cr, Co, Ni, Cu, Ga, Ge, As, Sb, W, Re, Ir, Pt, Au If anyone has one I could bum or could point me to one, it would be greatly appreciated. An Excel spreadsheet would be great! Thank you Jim Jim Wooddell http://k7wfr.us __ HAPPY HOLIDAYS!! 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] Fireball over Croatia on 27 December 2011, at 02:24 T.U.
I filmed the fireball near the horizon from Venice Italy. http://meteore.uai.it/b2011/b2011_12.htm I would like know if there are other observations. Tanks Maurizio Eltri __ HAPPY HOLIDAYS!! 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] NEW: added a ASTRONOMY-Science-Trivia Game
Hi List. I added for your entertainment a real neat trivia game on my Time Out page on my Cosmic Treasure Celestial Wonders Website. This covers many areas of astronomy, science, and physics questions to sharpen your knowledge! Truly lots of fun! http://www.ctreasurescwonders.com/test_page.html Also I have listed on eBay some very rare meteorite specimens! Particularly a very stunning England Fall of the hard to acquirer Apply Bridge with Crust! -- NOTE: This is my next to last piece with Crust! * A sweet piece of the nearly impossible to get German Fall Menow * And last... an excellent specimen of the Rare Irish Fall Bovedy Meteorite. This being a Hammer. * These have some nice surface area to weight ratio! My inventory is getting extremely low on these super rare hard to acquire historical meteorites and it may be some time before these types become available again or anywhere's as they are rarely often available particularly in small part slices. These can be viewed by clicking the link below. http://www.ebay.com/sch/emflocater/m.html?item=160709945311sspagename=STRK%3AMESELX%3AIT_trksid=p3984.m1586.l2649_trksid=p4340.l2562 Thank you Sincerely Don Merchant Cosmic Treasures Celestial Wonders www.ctreasurescwonders.com IMCA #0960 __ HAPPY HOLIDAYS!! 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] wanted: lunar for short-term loan (!)
hi, folks... I'm working with other teachers at my school to prepare a big astro event for our kindergarten students. we'll have two sessions, on Jan 18 and 25. as part of this, I'm hoping to pass around a small lunar meteorite. (we have a piece of Nakhla.) if any of you would be willing to lend me a lunar for about a week, please contact me off list using - kbea...@dexter.org thanks! clear skies, Kelly J. Kelly Beatty Senior Contributing Editor SKY TELESCOPE 617-416-9991 SkyandTelescope.com __ HAPPY HOLIDAYS!! 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] AD - Fresh Buzzard Coulee
A couple of things... To answer a question that a few people have had - yes, it does include the original export permit. In addition, I would like to move this one out the door quickly, so I will knock 40 off my original list price of $640. http://community.webshots.com/album/569165160RMTnOx?vhost=communitystart=12 Thanks... Ryan -- fallingfusion.com __ HAPPY HOLIDAYS!! 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 - January 4, 2012
MARS RECONNAISSANCE ORBITER HIRISE IMAGES January 4, 2012 o Small Floral-Shaped Volcano on Cerberus Fossae http://hirise.lpl.arizona.edu/ESP_024378_1880 This smaller feature has a single vent, aligned along a Cerberus Fossae trough, and it has flows radiating away from this vent in all directions. o Field of Transverse Aeolian Ridges in Proctor Crater http://hirise.lpl.arizona.edu/ESP_024449_1320 Transverse Aeolian Ridges (or TARs) are small aeolian bedforms that are distinct from typical dunes or ripples. o Lava Flow Oozing into a Crater http://hirise.lpl.arizona.edu/ESP_024587_1465 By studying how lava reacts to obstacles and to variation in slope, scientists may be able to learn about the thickness, stickiness, and strength of the ancient lava flow. o What is This Stuff? http://hirise.lpl.arizona.edu/ESP_024886_1765 A puzzling ridged texture was first seen in an image from the Context Camera on MRO, leading to this suggestion for a HiRISE image. 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. __ HAPPY HOLIDAYS!! 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] TUCSON
Good evening list.Just wondering who is coming to tucson who is not dealing.It will be great to be back to see everyone. -- Steve R. Anold, chicago, ill. __ HAPPY HOLIDAYS!! 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] Dawn Journal - December 30, 2011
http://dawn.jpl.nasa.gov/mission/journal_12_30_11.asp Dawn Journal Dr. Marc Rayman December 30, 2011 Dear Indawnmitables, Dawn concludes 2011 more than 40 thousand times nearer to Vesta than it began the year. Now at its lowest altitude of the mission, the bold adventurer is conducting its most detailed exploration of this alien world and continuing to make thrilling new discoveries. Circling the protoplanet 210 kilometers (130 miles) beneath it every 4 hours, 21 minutes on average, Dawn is closer to the surface than the vast majority of Earth-orbiting satellites are to that planet. There are two primary scientific objectives of this low altitude mapping orbit (LAMO). With its gamma ray and neutron detector (GRaND), the probe is measuring the faint emanations of these subatomic particles from Vesta. Some are the by-products of the bombardment by cosmic rays, radiation that pervades space, and others are emitted through the decay of radioactive elements. Vesta does not glow brightly when observed in nuclear particles, so GRaND needs to measure the radiation for weeks at this low altitude. This is analogous to using a long exposure with a camera to photograph a dimly lit subject. If GRaND only detected the radiation, it would be as if it took a black and white picture, but this sophisticated instrument does more. It measures the energy of each particle, just as a camera can measure the color of light. The energies reveal the identities of the elements that constitute the uppermost meter (yard) of the surface. Dawn devotes most of its time now flying over Vesta to collecting the glimmer of radiation. It requires a long time, but this spacecraft has demonstrated tremendous patience in its use of the gentle but efficient ion propulsion system that made the mission possible, so it can be patient in making these measurements. The second motivation for diving down so low is to be close enough that Vesta's interior variations in density affect the spacecraft's orbit discernibly. We have seen before that the distribution of mass inside the protoplanet reveals itself through the changing strength of its gravitational tug on Dawn. Exquisitely sensitive measurements of the ship's course can be translated into a three-dimensional map of the mass. In the plans discussed for LAMO one year ago, the delicate tracking of the spacecraft required pointing the main antenna to Earth. That provides a radio signal strong enough to achieve the required accuracy. Since then, navigators have determined that the radio signal received from one of the craft's auxiliary antennas, although far weaker, is sufficient. The main antenna broadcasts a tight beam, whereas the others emit over a much larger angle, exchanging signal strength for flexibility in pointing. This allows an extremely valuable improvement. The spacecraft cannot aim GRaND at the surface and the main antenna at Earth concurrently, because both are mounted rigidly, just as you cannot simultaneously point the front of your car north and the back east. Therefore, in the original plan, gravity measurements and GRaND measurements were mutually exclusive. Now, as Dawn turns throughout its orbit to keep Vesta in GRaND's sights, it can transmit a weak radio signal that is just perceptible at Earth. This enables an even greater science return for the time in LAMO. Unlike the science camera and the visible and infrared mapping spectrometer (VIR), GRaND and gravity observations do not depend on the sun's illumination of the surface. Even as it orbits over a dark, cold, silent landscape, Dawn is fully capable of continuing to build its maps of elements and the interior structure. The signal from the auxiliary antenna is just sufficient for the measurement of the spacecraft's motion, but it is not strong enough to carry data as well. So the spacecraft is still programmed to point its main antenna to Earth three times each week, allowing the precious GRaND observations that have been stored in computer memory to be transmitted. As always, the myriad measurements of temperatures, voltages, currents, pressures, and other parameters that engineers use to ensure the health of the ship are returned during these communications sessions as well. Although the pictures of Vesta from survey orbit and the high altitude mapping orbit (HAMO) have exceeded scientists' expectations, not only in quality and quantity but also in the truly fascinating content, as enthusiastic explorers, the Dawn team could not pass up the opportunity for more. When GRaND is pointed at the surface, the camera is too, and already well over one thousand images have been returned, revealing detail three times finer than the spectacular images from HAMO. For readers who cannot go to Vesta on their own, go here /multimedia/imageoftheday/archives.asp for a selection of the best views, each showing surprising and captivating alien landscapes. In addition to the bonus photography,
[meteorite-list] Shock Treatment - AD
Hello All, Hope everyone is settling into the New Year nicely! I just loaded a pretty sweet NWA 482 slice with a very nice shock vein running through the polished face. I loaded up for first time auction action the LAST five complete slices of the very Fresh R5 Rumurutiite, NWA 6959... Very Nice!! In addition to the above spectacular specimens, I also loaded up several oriented Sikhote's and lowered the prices on some other unsold items from prior eBay auctions. If interested, please click here for my current eBay auctions: http://search.ebay.com/_W0QQsassZnaturesvault Thank you for Looking Bidding! Best Regards, Greg Greg Hupé The Hupé Collection gmh...@centurylink.net www.LunarRock.com NaturesVault (eBay) IMCA 3163 Click here for my current eBay auctions: http://search.ebay.com/_W0QQsassZnaturesvault __ HAPPY HOLIDAYS!! 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] Cleaning stony meteorites
Hello all and good day I have some uNWA’s that have rust or a rust color in the crust. This is not fresh crust. I would like to remove the rust and or rust color from the surface of these meteorites. I have also read a post that stated there is a chemical way to the original crust? Any help would be appreciated. I am familiar with working on meteorites as far a cutting, polishing and etching. Thanks in advance for your help. Griff Parker, Colorado, USA IMCA 2510 __ HAPPY HOLIDAYS!! 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] Quasicrystals on Yahoo news
All, If you haven't already seen this (sorry if it's a repost) and are interested, below is a link to a current yahoo news story concerning the quasicrystals, and also a copy to a link at the bottom of that article concerning a few famous meteorites. I didn't read all of the captions yet so there may be errors, but it does includes a couple of interesting photos I don't think I've ever seen. See below if you wish: Quasicryrals: http://news.yahoo.com/strange-crystals-reveal-rock-ancient-meteorite-205104508.html Famous meteorites: http://www.livescience.com/15445-fallen-stars-gallery-famous-meteorites.html Best wishes, Robert Woolard __ HAPPY HOLIDAYS!! 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] AD - Fresh Buzzard Coulee
Got export papers? Chris Spratt (Via my iPhone) __ HAPPY HOLIDAYS!! 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
