[meteorite-list] Some historical meteorites - Arriba, Assisi, Atoka, Crumlin, Siena
Dear list members, I offer a few small but quite rare meteorite fragments and some really nice GEM quality LDG on E-Bay ending in about 30hrs. No reserve, low starting bid, some still at USD 1.99 Please have a look if interested. http://stores.ebay.com/SAHARAGEMS-DESERT-STONES-and-more?_rdc=1 Best regards, Thomas www.saharagems.com __ 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] Rocks from Space Picture of Day - January 5, 2011
http://www.rocksfromspace.org/January_5_2011.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
[meteorite-list] Impact Crater in New Mexico – Part 1 Lea County
About an area in Lea County, New Mexico, Abe wrote: “I plan to go on another meteorite hunting trip to New Mexico soon before the Tucson show. Would you guys think that this is an impact crater? 32°21'54.39 N 103°23'47.50 W. I remember reading about it on a site but it appears that there are just too many craters in the area to all be impact craters. If they aren’t impact craters what would be the possibility they are ancient ponds for wildlife? I would imagine that as West Texas and New Mexico dried up, any remaining wet ground would become extremely populated with wild life and over centuries these locations would become deep ponds.” These are playa lakes. They are neither impact craters nor related any type of impact processes. Some of these playa lakes have been in existence throughout the Pleistocene. However, there is one known exception to how playa lakes typically form, it is the playa lake that occupied the Odessa impact crater. About playa Lakes, Holliday et al. (1996) states “These lithostratigraphic and chronostratigraphic relationships show that some basins have a prolonged history as depressions, persisting in more or less the same location as the High Plains surface aggraded by eolian addition (Blackwater Draw Formation) throughout the Pleistocene. Sizes of the basins varied through time as they were encroached upon by the Blackwater Draw Formation, enlarged by fluvial, lake margin, and eolian erosion, were filled and reexposed, or were buried. Some basins are newly formed on the High Plains surface and have no apparent predecessors.” About the origin of playa basins, Gustavson et al. (1995a) wrote “The initial formation of playa basins involved many processes but most likely started with collection of runoff in small, irregular topographic depressions on the High Plains. Initial depressions may have resulted from surface drainage, dissolution of the Caprock calcrete, subsidence caused by salt dissolution, differential compaction, animal wallows, or blowouts where vegetation was missing. Ponded runoff killed vegetation or inhibited plant growth and allowed deflation to remove some of the surface sediment when the pond dried out. As the initial small basin expanded, fluvial erosion and lacustrine sedimentation became more important. centripetal drainage enlarged the basin by eroding the basin margin and carrying sediment to the basin floor. Periodic flooding continued to keep the center of the playa basin relatively clear of vegetation. Wind deflated dry sediment from the playa center. Deflation may have been accelerated after large herds of bison pulverized dried surface soils and carried small amounts of sediment out of the basin on their hooves. Sediments deflated from these basins were carried downwind.” Some Publications About Playa Lakes Gustavson, T. C., V. T. Holliday, and S, D. Hovorka, 1995a Development of Playa Basins, Southern High Plains, Texas and New Mexico. In Proceedings of the Playa Basin Symposium, edited by L.V. Urban and A.W. Wyatt, pp. 5-14. Texas Tech University, Water Resources Center, Lubbock. Gustavson, T. C., V. T. Holliday, and S. D. Hovorka, 1995b Origin and Development of Playa Basins, Sources of Recharge to the Ogallala Aquifer, Southern High Plains, Texas and New Mexico. The University of Texas at Austin, Bureau of Economic Geology Report of Investigation 229. Holliday, V. T., T. C. Gustavson, and S. D. Hovorka, 1996, Stratigraphy and Geochronology of Playa Fills on the Southern High Plains. Geological Society of America Bulletin. vol. 108, no. 8, pp. 953-965. Abstract at http://gsabulletin.gsapubs.org/content/108/8/953.short PDF file at http://www.argonaut.arizona.edu/articles/holliday_etal1996.pdf and http://www.argonaut.arizona.edu/holliday.htm Hovorka, S.D., 1997, Quaternary evolution of ephemeral playa lakes on the Southern High Plains of Texas, USA: cyclic variation in lake level recorded in sediments. Journal of Paleolimnology. vol. 17, pp. 131–146. http://www.springerlink.com/content/u20316917821568q/ Osterkamp, W. R. and W. W. Wood, 1987, Playa-lake basins on the Southern High Plains of Texas and New Mexico: Part I. Hydrologic, geomorphic, and geologic evidence for their development. Geological Society of America Bulletin. vol. 99, no.2, pp. 215-223. http://bulletin.geoscienceworld.org/cgi/content/abstract/99/2/215 Wood, W. W., and W. R. Osterkamp, 1987, Playa-lake basins on the Southern High Plains of Texas and New Mexico: Part II. A hydrologic model and mass-balance arguments for their development. Geological Society of America Bulletin. vol. 99, no.2, pp. 224-230. http://bulletin.geoscienceworld.org/cgi/content/abstract/99/2/224 Playa lakes are an extremely important to local wildlife as the primary wetlands in this part of the southern High Plains as discussed in: Haukosa, D. A., and L. M. Smith, 1994, The importance of playa wetlands to biodiversity of the Southern
Re: [meteorite-list] Rocks from Space Picture of Day - January 5, 2011
I know that lichen growth-rates have been used to estimate the age of some geological events. In this case, the radionuclide derived age might be used to verify growth rates for the this species of lichen in this environment. It would be interesting to compare the two derived ages for consistency. Another, who would have thought such a thing could exist photo of the day. Thanks Mike and congrats Svend et al. Elton - Original Message From: Michael Johnson mich...@rocksfromspace.org To: meteorite-list@meteoritecentral.com Sent: Wed, January 5, 2011 9:26:06 AM Subject: [meteorite-list] Rocks from Space Picture of Day - January 5, 2011 http://www.rocksfromspace.org/January_5_2011.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
Re: [meteorite-list] Rocks from Space Picture of Day - January 5, 2011
Interesting aspect indeed, Elton. Great find, Svend, and pics as well. Would be interesting to know whether frucitose lichen Ramalina maciformis still resides at its highly probable Vestanian place and, if so, whether it's still in good shape. Or did you already have it with pasta? Best, Matthias - Original Message - From: MEM mstrema...@yahoo.com To: meteorite-list@meteoritecentral.com Sent: Wednesday, January 05, 2011 4:46 PM Subject: Re: [meteorite-list] Rocks from Space Picture of Day - January 5,2011 I know that lichen growth-rates have been used to estimate the age of some geological events. In this case, the radionuclide derived age might be used to verify growth rates for the this species of lichen in this environment. It would be interesting to compare the two derived ages for consistency. Another, who would have thought such a thing could exist photo of the day. Thanks Mike and congrats Svend et al. Elton - Original Message From: Michael Johnson mich...@rocksfromspace.org To: meteorite-list@meteoritecentral.com Sent: Wed, January 5, 2011 9:26:06 AM Subject: [meteorite-list] Rocks from Space Picture of Day - January 5, 2011 http://www.rocksfromspace.org/January_5_2011.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
Re: [meteorite-list] Rocks from Space Picture of Day - January 5, 2011
Great specimen! Is this a first shown on List with the growth of a lichen? Congratulations Svend on your finds and thank you Mike for Rocks from Space. Count Deiro IMCA 3536 -Original Message- From: Michael Johnson mich...@rocksfromspace.org Sent: Jan 5, 2011 6:26 AM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Rocks from Space Picture of Day - January 5, 2011 http://www.rocksfromspace.org/January_5_2011.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
[meteorite-list] NASA Checking on Rover Spirit During Martian Spring
http://www.jpl.nasa.gov/news/news.cfm?release=2011-003 NASA Checking on Rover Spirit During Martian Spring Jet Propulsion Laboratory January 04, 2011 Mars Exploration Rover Mission Status Report PASADENA, Calif. -- Nine months after last hearing from the Mars rover Spirit, NASA is stepping up efforts to regain communications with the rover before spring ends on southern Mars in mid-March. Spirit landed on Mars Jan. 4, 2004 (Universal Time; Jan. 3, Pacific Time) for a mission designed to last for three months. After accomplishing its prime-mission goals, Spirit worked for more than five years in bonus-time extended missions. The amount of solar energy available for Spirit is still increasing every day for the next few months, said Mars Exploration Rover Project Manager John Callas of NASA's Jet Propulsion Laboratory, Pasadena, Calif. As long as that's the case, we will do all we can to increase the chances of hearing from the rover again. After mid-March, prospects for reviving Spirit would begin to drop. Communication strategies would change based on reasoning that Spirit's silence is due to factors beyond just a low-power condition. Mission-ending damage from the cold experienced by Spirit in the past Martian winter is a real possibility. The rover's motors worked far beyond their design life, but eventually, Spirit lost use of drive motors on two of its six wheels. This left it unable to obtain a favorable tilt for solar energy during the rover's fourth Martian winter, which began last May. Spirit and its twin, Opportunity, which landed three weeks after Spirit and is still active, both have made important discoveries about wet environments on ancient Mars that may have been favorable for supporting microbial life. Spirit last communicated on March 22, 2010. The rover team had anticipated that the rover would enter a low-power fault mode with minimal activity except charging and heating the batteries and keeping its clock running. With most heaters shut off, Spirit's internal temperatures dipped lower than ever before on Mars. That stress could have caused damage, such as impaired electrical connections, that would prevent reawakening or, even if Spirit returns to operation, would reduce its capabilities. Southern-Mars spring began in November 2010. Even before that, NASA's Deep Space Network of antennas in California, Spain and Australia has been listening for Spirit daily. The rover team has also been sending commands to elicit a response from the rover even if the rover has lost track of time. Now, the monitoring is being increased. Additional listening periods include times when Spirit might mistake a signal from NASA's Mars Reconnaissance Orbiter as a signal from Earth and respond to such a signal. Commands for a beep from Spirit will be sent at additional times to cover a wider range of times-of-day on Mars when Spirit might awaken. Also, NASA is listening on a wider range of frequencies to cover more possibilities of temperature effects on Spirit's radio systems. JPL, a division of the California Institute of Technology in Pasadena, manages the Mars Exploration Rover project for NASA's Science Mission Directorate, Washington. Guy Webster 818-354-6278 Jet Propulsion Laboratory, Pasadena, Calif. guy.webs...@jpl.nasa.gov 2011-003 __ 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 Meteorite used as Neolithic Tool
Hi List, A new meteorite (Bouanane) was added to the Met Bulletin yesterday and in the description it says the meteorite was used as a hammer/anvil tool in the Neolithic period. This meteorite came out of Morocco courtesy of Philippe Thomas. Does anyone have a photo of this specimen? I'm very curious to see what it looks like. http://www.lpi.usra.edu/meteor/metbull.php?code=52888 Best regards, MikeG -- Mike Gilmer - Galactic Stone Ironworks Meteorites Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone Meteorite Top List - http://meteorite.gotop100.com EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 --- __ 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] Opportunity Rover Will Spend 7th Birthday at Stadium-Size Crater
http://www.jpl.nasa.gov/news/news.cfm?release=2011-002 Rover Will Spend 7th Birthday at Stadium-Size Crater Jet Propulsion Laboratory January 04, 2011 The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter captured a Dec. 31, 2010, view of the Mars Exploration Rover Opportunity on the southwestern rim of a football-field-size crater called Santa Maria. Opportunity arrived at the western edge of Santa Maria crater in mid-December and will spend about two months investigating rocks there. That investigation will take Opportunity into the beginning of its eighth year on Mars. Opportunity landed in the Meridiani Planum region of Mars on Jan. 25, 2004, Universal Time (Jan. 24, Pacific Time) for a mission originally planned to last for three months. The new image is online at http://www.nasa.gov/mission_pages/mer/multimedia/gallery/pia13754-anno.html and http://hirise.lpl.arizona.edu/releases/oppy-santa-maria.php . Opportunity and its twin, Spirit, which passed its seventh anniversary on Mars this week, both have made important discoveries about wet environments on ancient Mars that may have been favorable for supporting microbial life. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter and Mars Exploration Rover projects for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, built the orbiter. The University of Arizona, Tucson, operates the HiRISE camera, which was built by Ball Aerospace Technologies Corp., Boulder, Colo. Guy Webster 818-354-6278 Jet Propulsion Laboratory, Pasadena, Calif. guy.webs...@jpl.nasa.gov 2011-002 __ 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, 2010
http://dawn.jpl.nasa.gov/mission/journal_12_30_10.asp Dawn Journal Dr. Marc Rayman December 30, 2010 Dear Dawnscriminating Readers, Dawn finishes 2010 much as it began the year, thrusting with its ion propulsion system in steady pursuit of a distant world. During the next year, the probe will arrive there and begin its scrutiny. In the meantime, it continues thrusting patiently, but now with a difference. Dawn is outfitted with three ion thrusters, although it is designed to use only one at a time. (The locations and whimsical names of the thrusters were divulged once the spacecraft was too far from Earth for anyone to see it.) Thruster #3 was the first to see action in the mission, and it propelled the spacecraft until June 16, 2008, after which thruster #1 took over. On Jan. 4, 2010, the ship switched to thruster #2. Prior to this year, #2 had accumulated little more than a day of operation for some tests. But in 2010, it operated flawlessly for 304 days, and Dawn accomplished nearly all of its thrusting this year with only that thruster. While #2 is ready for much more, on Dec. 6 mission controllers assigned thrusting to #3 as part of the strategy of balancing the work for this long journey among the three units. During its extensive service this year, thruster #2 expended less than 79 kilograms (174 pounds) of xenon propellant. With its uniquely efficient but exquisitely gentle touch, the thruster accelerated the ship by more than 2.2 kilometers per second (4,900 mph). Some of our more dawnscriminating readers will recall that the actual velocity is complicated by the effects of the spacecraft's orbital motion around the sun. This has been discussed in several, if not 602.2 sextillion, logs (this one http://dawn.jpl.nasa.gov/mission/journal_8_24_08.asp#correspondent being a good example), Nevertheless, the change in speed is an effective and common measure of the effect of a spacecraft's maneuvering. Thruster #3 had remained idle for 2.5 years, waiting with the same patience it displays when thrusting. Earlier this month, the long hiatus ended; it came to life again and operated as smoothly as ever. It is once more powering the ship ahead, impelling the probe toward its July rendezvous with the mysterious and alien world Vesta. In addition to ensuring Dawn's journey to Vesta continues to go so well, the operations team has been making good progress formulating the detailed instructions the robotic explorer will follow when it is there. Earlier this year, we examined what the ship will do as it approaches the distant port and how it will sail into orbit under ion thrust as well as what it will do in the first two principal science phases, survey orbit and the high altitude mapping orbit (HAMO). Engineers are working now on the timeline of commands, known as sequences, for the third major science phase. To learn more about that, all you have to do is wait a year and read about the activities the spacecraft is conducting. For the more impatient readers, we present an overview here. From HAMO, at an altitude of about 660 kilometers (410 miles), Dawn will have an excellent view of Vesta, close enough to see plenty of fascinating details and yet far enough to allow its science camera to cover most of the surface of this uncharted world during the month of mapping. In addition to using the camera to develop the global maps, the visible and infrared mapping spectrometer (VIR) will be trained on many regions, providing even better resolution on the minerals that compose the surface than it could achieve from the higher survey orbit. When its work in HAMO is complete, the craft will fly in for an even closer look. We saw in April that just as the interplanetary traveler has spiraled around the sun from Earth on its way to Vesta (and will do so en route from Vesta to Ceres), it will spiral around Vesta as its ion propulsion system takes it from one orbital altitude to another. Although operation of the ion propulsion system itself is independent of whether it is in orbit around the sun or around Vesta, there is much more to thrusting than that one system. There will be several important differences in how the mission control team plans the flight profile and operates the craft when transiting from one orbit to another at Vesta, and we will consider those in a future log. We also will see that as-yet uncharacterized physical properties of Vesta itself will affect the nature of the trip. The operations team has been working hard to prepare for the many possibilities that might be found at this unexplored world. Dawn's target after HAMO will be an altitude of around 180 kilometers (110 miles), closer to the surface beneath it than most satellites are that orbit Earth. It may take six to eight weeks to follow the winding path from HAMO to this low altitude mapping orbit (LAMO) under the delicate push of the ion thrust. While that may seem like a long time, a mission to Vesta that relied
Re: [meteorite-list] New Meteorite used as Neolithic Tool
Hello Mike, http://www.meteoritica.com/bouanane.htm Regards, Jason On Wed, Jan 5, 2011 at 8:36 AM, Michael Gilmer meteoritem...@gmail.com wrote: Hi List, A new meteorite (Bouanane) was added to the Met Bulletin yesterday and in the description it says the meteorite was used as a hammer/anvil tool in the Neolithic period. This meteorite came out of Morocco courtesy of Philippe Thomas. Does anyone have a photo of this specimen? I'm very curious to see what it looks like. http://www.lpi.usra.edu/meteor/metbull.php?code=52888 Best regards, MikeG -- Mike Gilmer - Galactic Stone Ironworks Meteorites Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone Meteorite Top List - http://meteorite.gotop100.com EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 --- __ 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] New Meteorite used as Neolithic Tool
Very interesting specimen. Hopefully this meteorite tool was cored instead of cut for the type specimen repository. It would be shame if it were cut significantly reducing its cultural value. This is a rare case where I wouldn't cut a meteorite to make it official unless I thought it was super rare and that its scientific value outweighed its cultural value. Best Regards, Adam - Original Message From: Jason Utas meteorite...@gmail.com To: Michael Gilmer meteoritem...@gmail.com; Meteorite-list meteorite-list@meteoritecentral.com Sent: Wed, January 5, 2011 8:42:48 AM Subject: Re: [meteorite-list] New Meteorite used as Neolithic Tool Hello Mike, http://www.meteoritica.com/bouanane.htm Regards, Jason On Wed, Jan 5, 2011 at 8:36 AM, Michael Gilmer meteoritem...@gmail.com wrote: Hi List, A new meteorite (Bouanane) was added to the Met Bulletin yesterday and in the description it says the meteorite was used as a hammer/anvil tool in the Neolithic period. This meteorite came out of Morocco courtesy of Philippe Thomas. Does anyone have a photo of this specimen? I'm very curious to see what it looks like. http://www.lpi.usra.edu/meteor/metbull.php?code=52888 Best regards, MikeG -- Mike Gilmer - Galactic Stone Ironworks Meteorites Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone Meteorite Top List - http://meteorite.gotop100.com EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 --- __ 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] New Meteorite used as Neolithic Tool
Hello Adam, It says as much in the stone's description below the photos! Good stuff, Jason On Wed, Jan 5, 2011 at 8:58 AM, Adam Hupe raremeteori...@yahoo.com wrote: Very interesting specimen. Hopefully this meteorite tool was cored instead of cut for the type specimen repository. It would be shame if it were cut significantly reducing its cultural value. This is a rare case where I wouldn't cut a meteorite to make it official unless I thought it was super rare and that its scientific value outweighed its cultural value. Best Regards, Adam - Original Message From: Jason Utas meteorite...@gmail.com To: Michael Gilmer meteoritem...@gmail.com; Meteorite-list meteorite-list@meteoritecentral.com Sent: Wed, January 5, 2011 8:42:48 AM Subject: Re: [meteorite-list] New Meteorite used as Neolithic Tool Hello Mike, http://www.meteoritica.com/bouanane.htm Regards, Jason On Wed, Jan 5, 2011 at 8:36 AM, Michael Gilmer meteoritem...@gmail.com wrote: Hi List, A new meteorite (Bouanane) was added to the Met Bulletin yesterday and in the description it says the meteorite was used as a hammer/anvil tool in the Neolithic period. This meteorite came out of Morocco courtesy of Philippe Thomas. Does anyone have a photo of this specimen? I'm very curious to see what it looks like. http://www.lpi.usra.edu/meteor/metbull.php?code=52888 Best regards, MikeG -- Mike Gilmer - Galactic Stone Ironworks Meteorites Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone Meteorite Top List - http://meteorite.gotop100.com EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 --- __ 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] New Meteorite used as Neolithic Tool
Hi , Last year in Tuscon a friend found a 200 gram NWA chondrite that was used for a grinding tool. It was on the bottom of the bucket. Both sides were flat showing chondrules where it was used to grind. Sonny -Original Message- From: Michael Gilmer meteoritem...@gmail.com To: meteorite-list meteorite-list@meteoritecentral.com Sent: Wed, Jan 5, 2011 3:36 am Subject: [meteorite-list] New Meteorite used as Neolithic Tool Hi List,A new meteorite (Bouanane) was added to the Met Bulletin yesterday andin the description it says the meteorite was used as a hammer/anviltool in the Neolithic period.This meteorite came out of Morocco courtesy of Philippe Thomas. Doesanyone have a photo of this specimen? I'm very curious to see what itlooks like.http://www.lpi.usra.edu/meteor/metbull.php?code=52888Best regards,MikeG --Mike Gilmer - Galactic Stone Ironworks MeteoritesWebsite - http://www.galactic-stone.comFacebook - http://www.facebook.com/galacticstoneNews Feed - http://www.galactic-stone.com/rss/126516Twitter - http://twitter.com/galacticstoneMeteorite Top List - http://meteorite.gotop100.comEOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564---__Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.htmlMeteorite-list mailing listmeteorite-l...@meteoritecentral.comhttp://six.pairlist.net/mailman/li stinfo/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] Rocks from Space Picture of Day - January 5, 2011
It’s interesting that you mention it Elton. We actually looked into that. Although the meteorite shows zero visible oxidation, its quite possible the fall event dates back more than two decades. In case no short living cosmogenic radionuclides, 22Na in particular, can be detected, our idea was to have the age of the lichen determined (which could be several decades) in order to derive at least a minimum terrestrial age for the meteorite. This appears to be difficult though. While lichonometric age determination is well established and works for crustose lichen, it can not be applied to frucitose lichen. Radionuclide measurement might be a probable way. But as we had to discover, isotopic age determination of lichens is quite a tricky subject. Contrary to the process in wood or bones, where the isotopes are fixed in the structure, the lichen thalli are composed of fungi-hyphes which die off and are replaced periodically during the life cycle of the lichen. However, there are certain crystalline sediments within the thallus (e.g. oxalates) which may stay and remain on the lichen and thus preserve the isotopes collected over the life time of the plant. Our specimen fortunately appears to have aggregated quite some oxalates, so that’s the way we are currently following. There are only very few works on isotopic age dating of frucitose lichen. Most papers are dealing with C-isotopes. Uranium-isotopes in lichens are mostly measured to determine air pollution only, and there is no data for our find location which correlates them with age. So 238U und 232Th are of no use. Trying to detect 14C in the oxalates currently appears the most promising approach. I am absolutely no expert, neither in lichens nor in isotopic age dating, so I’d appreciate any corrections or additional thoughts. To answer Matthias’ question: of course we were interested to preserve the main body of the lichen “in situ” after sampling it, but I must admit it doesn’t look too healthy now. It didn’t take the removal of a sample from its habitat by means of an alcohol-cooled wire saw too well. Besides, its natural climatic environment is hard to simulate. A part of the plantlet is now archived in the herbarium of the Botanical Museum of Freie Universität Berlin, the other half is still on the meteorite. Let’s hope it recovers. Cheers Svend Meteorite-Recon.com i...@niger-meteorite-recon.de hat am 5. Januar 2011 um 18:28 geschrieben: It’s interesting that you mention it Elton. We actually looked into that. Although the meteorite shows zero visible oxidation, its quite possible the fall event dates back more than two decades. In case no short living cosmogenic radionuclides, 22Na in particular, can be detected, our idea was to have the age of the lichen determined (which could be several decades) in order to derive at least a minimum terrestrial age for the meteorite. This appears to be difficult though. While lichonometric age determination is well established and works for crustose lichen, it can not be applied to frucitose lichen. Radionuclide measurement might be a probable way. But as we had to discover, isotopic age determination of lichens is quite a tricky subject. Contrary to the process in wood or bones, where the isotopes are fixed in the structure, the lichen thalli are composed of fungi-hyphes which die off and are replaced periodically during the life cycle of the lichen. However, there are certain crystalline sediments within the thallus (e.g. oxalates) which may stay and remain on the lichen and thus preserve the isotopes collected over the life time of the plant. Our specimen fortunately appears to have aggregated quite some oxalates, so that’s the way we are currently following. There are only very few works on isotopic age dating of frucitose lichen. Most papers are dealing with C-isotopes. Uranium-isotopes in lichens are mostly measured to determine air pollution only, and there is no data for our find location which correlates them with age. So 238U und 232Th are of no use. Trying to detect 14C in the oxalates currently appears the most promising approach. I am absolutely no expert, neither in lichens nor in isotopic age dating, so I’d appreciate any corrections or additional thoughts. To answer Matthias’ question: of course we were interested to preserve the main body of the lichen “in situ” after sampling it, but I must admit it doesn’t look too healthy now. It didn’t take the removal of a sample from its habitat by means of an alcohol-cooled wire saw too well. Besides, its natural climatic environment is hard to simulate. A part of the plantlet is now archived in the herbarium of the Botanical Museum of Freie Universität Berlin, the other half is still on the meteorite. Let’s hope it recovers. Cheers Svend MEM mstrema...@yahoo.com hat am 5. Januar 2011 um 16:46 geschrieben: I know that lichen growth-rates have been used to estimate
Re: [meteorite-list] Rocks from Space Picture of Day - January 5, 2011
I found it interesting that both samples had the lichen growing on them. Just wondering, Svend, how common the growths were on surrounding stones or if perhaps they favoured growing on the Eucrite because of certain minerals contained within compared to other stones in the area. Graham, UK On 5 January 2011 14:26, Michael Johnson mich...@rocksfromspace.org wrote: http://www.rocksfromspace.org/January_5_2011.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
[meteorite-list] New Meteorite used as Neolithic Tool
It looks a lot more like a cupstone or a discoidal than a hammerstone. Doesn't look anything like an anvil. An anvil would have a flat surface. A hammerstone generally wouldn't have a depression in its middle. We have a Campo in the museum that was used as an anvil, I have a picture of it somewhere Cupule: http://www.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/en/thumb/a/a6/NutterPen759.pdf/page1-240px-NutterPen759.pdf.jpgimgrefurl=http://en.wikipedia.org/wiki/Cupstoneusg=__4CsS3wfr9tZ1FJumz8AO0nbnuSg=h=196w=240sz=8hl=enstart=11sig2=QJZqojW36XnfMRWDw4as_gzoom=0um=1itbs=1tbnid=oUb8AvV5zA9lMM:tbnh=90tbnw=110prev=/images%3Fq%3Dcupstone%26um%3D1%26hl%3Den%26tbs%3Disch:1ei=XLMkTbDzMMP78AbBz6XRDQ Discoidal: http://www.relicshack.com/Details.aspx?Id=14943 Phil Whitmer - Hi List, A new meteorite (Bouanane) was added to the Met Bulletin yesterday and in the description it says the meteorite was used as a hammer/anvil tool in the Neolithic period. This meteorite came out of Morocco courtesy of Philippe Thomas. Does anyone have a photo of this specimen? I'm very curious to see what it looks like. http://www.lpi.usra.edu/meteor/metbull.php?code=52888 Best regards, MikeG __ 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] Pictures from Space
I just received this link from a friend and wanted to pass it on to the list. It includes a collection of pictures taken by astronaut Douglas H. Wheelock on his recent trip to space. Thanks to Astronaut Wheelock for generously sharing these pictures of our planet from this amazing point of view. http://triggerpit.com/2010/11/22/incredible-pics-nasa-astronaut-wheelock/ In looking at the pictures I thought of how amazing it would be if a meteorite fall could ever be captured on film from this vantage point. I hope you enjoy them as much as I did. Kind Regards, Abe Guenther __ 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] New Meteorite used as Neolithic Tool
I'm no expert, but I concur with Phil. It does like the discoidal shown in the link. Either way, it's a super find. Congrats to Philippe. :) Best regards, MikeG On 1/5/11, JoshuaTreeMuseum joshuatreemus...@embarqmail.com wrote: It looks a lot more like a cupstone or a discoidal than a hammerstone. Doesn't look anything like an anvil. An anvil would have a flat surface. A hammerstone generally wouldn't have a depression in its middle. We have a Campo in the museum that was used as an anvil, I have a picture of it somewhere Cupule: http://www.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/en/thumb/a/a6/NutterPen759.pdf/page1-240px-NutterPen759.pdf.jpgimgrefurl=http://en.wikipedia.org/wiki/Cupstoneusg=__4CsS3wfr9tZ1FJumz8AO0nbnuSg=h=196w=240sz=8hl=enstart=11sig2=QJZqojW36XnfMRWDw4as_gzoom=0um=1itbs=1tbnid=oUb8AvV5zA9lMM:tbnh=90tbnw=110prev=/images%3Fq%3Dcupstone%26um%3D1%26hl%3Den%26tbs%3Disch:1ei=XLMkTbDzMMP78AbBz6XRDQ Discoidal: http://www.relicshack.com/Details.aspx?Id=14943 Phil Whitmer - Hi List, A new meteorite (Bouanane) was added to the Met Bulletin yesterday and in the description it says the meteorite was used as a hammer/anvil tool in the Neolithic period. This meteorite came out of Morocco courtesy of Philippe Thomas. Does anyone have a photo of this specimen? I'm very curious to see what it looks like. http://www.lpi.usra.edu/meteor/metbull.php?code=52888 Best regards, MikeG __ 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 -- -- Mike Gilmer - Galactic Stone Ironworks Meteorites Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone Meteorite Top List - http://meteorite.gotop100.com EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 --- __ 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] New Meteorite used as Neolithic Tool
Very impressive indeed. I just went through my inventory of Neolithic tools (collected legally) and all of mine are made from basalt. Darn. I wish my 70 pound matate was an OC Really cool find. Phil,you are correct this is a discoidal. Orrin La Rue Surprise, AZ On Wed, Jan 5, 2011 at 12:14 PM, Michael Gilmer meteoritem...@gmail.com wrote: I'm no expert, but I concur with Phil. It does like the discoidal shown in the link. Either way, it's a super find. Congrats to Philippe. :) Best regards, MikeG On 1/5/11, JoshuaTreeMuseum joshuatreemus...@embarqmail.com wrote: It looks a lot more like a cupstone or a discoidal than a hammerstone. Doesn't look anything like an anvil. An anvil would have a flat surface. A hammerstone generally wouldn't have a depression in its middle. We have a Campo in the museum that was used as an anvil, I have a picture of it somewhere Cupule: http://www.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/en/thumb/a/a6/NutterPen759.pdf/page1-240px-NutterPen759.pdf.jpgimgrefurl=http://en.wikipedia.org/wiki/Cupstoneusg=__4CsS3wfr9tZ1FJumz8AO0nbnuSg=h=196w=240sz=8hl=enstart=11sig2=QJZqojW36XnfMRWDw4as_gzoom=0um=1itbs=1tbnid=oUb8AvV5zA9lMM:tbnh=90tbnw=110prev=/images%3Fq%3Dcupstone%26um%3D1%26hl%3Den%26tbs%3Disch:1ei=XLMkTbDzMMP78AbBz6XRDQ Discoidal: http://www.relicshack.com/Details.aspx?Id=14943 Phil Whitmer - Hi List, A new meteorite (Bouanane) was added to the Met Bulletin yesterday and in the description it says the meteorite was used as a hammer/anvil tool in the Neolithic period. This meteorite came out of Morocco courtesy of Philippe Thomas. Does anyone have a photo of this specimen? I'm very curious to see what it looks like. http://www.lpi.usra.edu/meteor/metbull.php?code=52888 Best regards, MikeG __ 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 -- -- Mike Gilmer - Galactic Stone Ironworks Meteorites Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone Meteorite Top List - http://meteorite.gotop100.com EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 --- __ 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] Pictures from Space
Breathtaking photos indeed: Egypt like a wrought-golden Lotus, enbedded in desert-dark - simply wonderful! Thanks for sharing, Guenther! Best, Matthias - Original Message - From: Guenther abe.guent...@mnsi.net To: meteorite-list@meteoritecentral.com Sent: Wednesday, January 05, 2011 8:04 PM Subject: [meteorite-list] Pictures from Space I just received this link from a friend and wanted to pass it on to the list. It includes a collection of pictures taken by astronaut Douglas H. Wheelock on his recent trip to space. Thanks to Astronaut Wheelock for generously sharing these pictures of our planet from this amazing point of view. http://triggerpit.com/2010/11/22/incredible-pics-nasa-astronaut-wheelock/ In looking at the pictures I thought of how amazing it would be if a meteorite fall could ever be captured on film from this vantage point. I hope you enjoy them as much as I did. Kind Regards, Abe Guenther __ 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] BBC stargazing live....meteorites
Hi All, For all those able to view...tonights episode in the UK is covering the Quadrantids and some info on meteorites at this very moment. Graham, UK __ 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] METEORITE Magazine
Just finished mine...another great issue! Dave www.fallingrocks.com -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Greg Hupe Sent: Thursday, December 30, 2010 11:46 PM To: meteorite-list@meteoritecentral.com; gmh...@centurylink.net Subject: Re: [meteorite-list] METEORITE Magazine I received mine today as well, can't wait to read it! Best Regards, Greg Greg Hupe The Hupe Collection NaturesVault (eBay) gmh...@centurylink.net www.LunarRock.com IMCA 3163 Click here for my current eBay auctions: http://search.ebay.com/_W0QQsassZnaturesvault -Original Message- From: Bob King Sent: Thursday, December 30, 2010 10:52 PM To: meteorite-list@meteoritecentral.com Subject: Re: [meteorite-list] METEORITE Magazine Mine came today, too. It's a great issue. Can't wait to read about hourglass chondrules. There's a great photo of Barringer on horseback at Meteor Crater, a newbie-friendly article on meteorwrongs, a fascinating account about checking out a possible meteorite mounted high on a wall in mosque in Istanbul, a report on Gibeon and lots more. Yours will come soon! Bob On Thu, Dec 30, 2010 at 7:07 PM, David Pensenstadler dfpen...@yahoo.com wrote: Dear Listees: I have just received an email from Hazel at METEORITE Magazine. She indicated that the November issue was sent in mid-December and believes that any delays might be due to increased Christmas mail. So, keep the faith. Dave __ 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] Happy Holidays
List: I wanted to take a moment to wish everyone a Merry Christmas and Happy Holidays too, As there are different celebrations… some for me and some for you. As we gaze into to the sky on Christmas night We may see Santa's sleigh dashing in flight, But there are other objects falling to earth Which may have started life or created its birth. And it's these black stones we hold in our hands, Put on our shelves and display on our stands, That have an attraction one cannot explain To desire and collect, find the minerals they contain. So if you are wishing for one in your stocking or under the tree Just remember the best gift of all… are your friends and family. Greg S. __ 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] Happy Belated Hogmanay and Boxing Day
AS they were a no' mention in the ample holiday wishes from Lad and Lass round the world... My I include my best wishes to the celebrants of these other holiday customs as ye may find yourselves in the midst there of. Under Secretary, Grinch Bureau and Scroougedom. Elton __ 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] Pictures from Space
Thanks for the link Abe That mountain in south America looks remarkably like a central uplift in a crater.Amazing pictures Jim __ 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] Impact Crater in New Mexico – Part 2 Lincoln County
Abe wrote in “Impact Crater in New Mexico” at http://six.pairlist.net/pipermail/meteorite-list/2011-January/072191.html ; “How about these 34° 0'51.00 N 105° 8'41.46 W? I notice a huge scatter of craters. Is much known about these or what they are? There are a lot of these ancient scars for several miles around. If they aren't impact craters it would be interesting to know what they are.” The features that are located at and near 34° 0'51.00 N 105° 8'41.46 W lie within the S1/2 of the SE1/4, of Section 27 and the N1/2 of the NE 1/2 of Section 34 of T. 3S., R. 17E. within Lincoln County, New Mexico. According to Scholle, P. A. (2003), this area is underlain by the San Andres Formation, which is described as “Limestone and dolomite with minor shale.” Judging from what can be seen in the images, the depressions in this area are natural features. Their morphology exhibits all the characteristics of typical sinkholes developed in the local limestone and dolomite bedrock. Unfortunately, I cannot at this time find anything specific about the geology of this part of Lincoln County, New Mexico. If a person wants to look for features to investigate as possible impact craters, they can check out the potential impact crater that Skotnicki (2009) reported finding within the Lincoln 7.5 quadrangle, Lincoln County, New Mexico. References; Scholle, P. A., 2003, Geologic Map of New Mexico. scale 1:500,000, New Mexico Bureau of Geology and Mineral Resources, Socorro, New Mexico. Skotnicki , S. J., 2009, Preliminary Geologic Map of the Lincoln Quadrangle, Lincoln County, New Mexico. scale: 1:24,000. Open-file Digital Geologic Map OF-GM 188. New Mexico Bureau of Geology and Mineral Resources, Socorro, New Mexico. http://geoinfo.nmt.edu/publications/maps/geologic/ofgm/details.cfml?Volume=188 Map at http://geoinfo.nmt.edu/publications/maps/geologic/ofgm/downloads/188/Lincoln_v1p-00.pdf Text at http://geoinfo.nmt.edu/publications/maps/geologic/ofgm/downloads/188/Lincoln_Report.pdf Yours, 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] New Meteorite used as Neolithic Tool
I know very little about Neolithic tools from Morocco, and so, I may be totally wrong about this object. But when I personally see the term discoidal, I immediately visualize the American Indian discoidal, an example of which Phil posted earlier.. It was used in a game called chunkey , and is usually a quite beautifully made, bi-cupped stone disk artifact. Sometimes they are drilled thru the center, but most often they are not. I have been lucky enough to find examples of each in the fields here in Arkansas that long ago were Indian village sites. Here are links to 2 examples, one drilled, one not. (These are links I found on the Net, and are not my personal collection pieces, although they very much resemble examples that I have found.) Drilled discoidal: http://theartifacthunter.com/images/DrilledDiscoidal.jpg Non-drilled discoidal: http://www.americanindian.si.edu/searchcollections/multimedia/4019/334/042.350x350.jpg And here is a link to the game they played using the stone: http://en.wikipedia.org/wiki/Chunkey I agree with the opinion that this tool fashioned from a meteorite resembles the so called nutting stone, or cupstone. I have found several of these on ancient Indian sites as well. Unlike the beautifully crafted discoidal, they are usually quite crudely fashioned. Once again, I emphasize that I only know about American Indian artifacts, and I may be completely wrong about this meteorite and its correct terminology as a Neolithic tool. But if I had been lucky enough to have found this meteorite-tool IN AMERICA, I would have definitely thought it was a meteorite that was used as a nutting stone... NOT a discoidal. Best, Robert Woolard On 1/5/11, JoshuaTreeMuseum joshuatreemus...@embarqmail.com wrote: It looks a lot more like a cupstone or a discoidal than a hammerstone. Doesn't look anything like an anvil. An anvil would have a flat surface. A hammerstone generally wouldn't have a depression in its middle. We have a Campo in the museum that was used as an anvil, I have a picture of it somewhere Cupule: http://www.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/en/thumb/a/a6/NutterPen759.pdf/page1-240px-NutterPen759.pdf.jpgimgrefurl=http://en.wikipedia.org/wiki/Cupstoneusg=__4CsS3wfr9tZ1FJumz8AO0nbnuSg=h=196w=240sz=8hl=enstart=11sig2=QJZqojW36XnfMRWDw4as_gzoom=0um=1itbs=1tbnid=oUb8AvV5zA9lMM:tbnh=90tbnw=110prev=/images%3Fq%3Dcupstone%26um%3D1%26hl%3Den%26tbs%3Disch:1ei=XLMkTbDzMMP78AbBz6XRDQ Discoidal: http://www.relicshack.com/Details.aspx?Id=14943 Phil Whitmer - Hi List, A new meteorite (Bouanane) was added to the Met Bulletin yesterday and in the description it says the meteorite was used as a hammer/anvil tool in the Neolithic period. This meteorite came out of Morocco courtesy of Philippe Thomas. Does anyone have a photo of this specimen? I'm very curious to see what it looks like. http://www.lpi.usra.edu/meteor/metbull.php?code=52888 Best regards, MikeG __ 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 -- -- Mike Gilmer - Galactic Stone Ironworks Meteorites Website - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone News Feed - http://www.galactic-stone.com/rss/126516 Twitter - http://twitter.com/galacticstone Meteorite Top List - http://meteorite.gotop100.com EOM - http://www.encyclopedia-of-meteorites.com/collection.aspx?id=1564 --- __ 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] Impact Crater in New Mexico – Part 2 Lincoln County
Looking at these features in Google Earth, they appear to be capped limestone structures rather than depressions. Has anyone on the discussion list actually been there? Rob http://www.rholcomb.com -- From: Paul H. oxytropidoce...@cox.net Sent: Wednesday, January 05, 2011 7:34 PM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] Impact Crater in New Mexico – Part 2 Lincoln County Abe wrote in “Impact Crater in New Mexico” at http://six.pairlist.net/pipermail/meteorite-list/2011-January/072191.html ; “How about these 34° 0'51.00 N 105° 8'41.46 W? I notice a huge scatter of craters. Is much known about these or what they are? There are a lot of these ancient scars for several miles around. If they aren't impact craters it would be interesting to know what they are.” The features that are located at and near 34° 0'51.00 N 105° 8'41.46 W lie within the S1/2 of the SE1/4, of Section 27 and the N1/2 of the NE 1/2 of Section 34 of T. 3S., R. 17E. within Lincoln County, New Mexico. According to Scholle, P. A. (2003), this area is underlain by the San Andres Formation, which is described as “Limestone and dolomite with minor shale.” Judging from what can be seen in the images, the depressions in this area are natural features. Their morphology exhibits all the characteristics of typical sinkholes developed in the local limestone and dolomite bedrock. Unfortunately, I cannot at this time find anything specific about the geology of this part of Lincoln County, New Mexico. If a person wants to look for features to investigate as possible impact craters, they can check out the potential impact crater that Skotnicki (2009) reported finding within the Lincoln 7.5 quadrangle, Lincoln County, New Mexico. References; Scholle, P. A., 2003, Geologic Map of New Mexico. scale 1:500,000, New Mexico Bureau of Geology and Mineral Resources, Socorro, New Mexico. Skotnicki , S. J., 2009, Preliminary Geologic Map of the Lincoln Quadrangle, Lincoln County, New Mexico. scale: 1:24,000. Open-file Digital Geologic Map OF-GM 188. New Mexico Bureau of Geology and Mineral Resources, Socorro, New Mexico. http://geoinfo.nmt.edu/publications/maps/geologic/ofgm/details.cfml?Volume=188 Map at http://geoinfo.nmt.edu/publications/maps/geologic/ofgm/downloads/188/Lincoln_v1p-00.pdf Text at http://geoinfo.nmt.edu/publications/maps/geologic/ofgm/downloads/188/Lincoln_Report.pdf Yours, 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 __ 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
