Re: [meteorite-list] Meteorite or Meteorwrong?
Well you guys probably know better than me - I don't follow the list that closely and wasn't familiar with your experience, so I thought I'd throw those guesses out to help. It sounds like you've done your homework. I'm definitely interested in hearing about what you learn about this stone. Since you've done so much weeding out of junk, I would say it's worth sending it in to a testing site. It would be nice to take a look in person (any of those stone...). I liked those links by the way - very interesting post, thanks for bringing it up. Something that always amazes me is how there is so much variety in terrestrial rocks. I confident that space rocks have some surprises still to come. Never a dull moment... Carl, do you ever do any hunting around Tucson? Mark, vail, AZ --- On Wed, 5/20/09, Meteorites USA wrote: > From: Meteorites USA > Subject: Re: [meteorite-list] Meteorite or Meteorwrong? > To: cdtuc...@cox.net, "meteorite-list@meteoritecentral.com" > > Date: Wednesday, May 20, 2009, 11:23 AM > Mark, Carl, List, > > I've scoured the web looking for photographs of andesite > and see "some" resemblance but not something conclusive for > identification of this stone. Though it does looking > similar. I'm not asking if this is a metoerite, I'm asking > if it's NOT a meteorite, what is it? > > As we know fusion crust is one of the biggest > identification factors considered in the ID of meteorites. > (I can see where this is going) and there are literally > hundreds of examples of different textures, and thicknesses, > and visual variances in fusion crust that it's not funny. > Which is why we have other tests we use to properly identify > a rock as a meteorite. > > Now before all you guys jump on me for asking the dreaded > "Is this a meteorite?" question or yell at me about how to > identify a meteorite, I'd like to clarify a few things. This > is a "ROCK" to me, nothing more. I've examined literally > thousands of meteorites and thrown away tens of kilos of > terrestrial stones that somehow got mixed into batches of > meteorites I've purchased. So the probability of this ROCK > being a meteorwrong is there. > > When you consider the sheer numbers of meteorites that I've > examined, it's no wonder that from time to time I will come > across a stone like this that perplexes me and makes me say > "What the heck is that?". I have two good sized drawers FULL > of meteorwrongs that I look through every now and then just > to see if I can pull out a few real meteorites as my > knowledge of meteorites grows. > > Here's a NICE meteorite I recently found in my meteorwrong > drawer: > > EXTERIOR: http://www.meteoritesusa.com/images/odd/odd-1e.jpg > INTERIOR: http://www.meteoritesusa.com/images/odd/odd-1a.jpg > > I get a whole bunch of odd rocks, and only post to the list > when I can't find an answer myself. Believe me I look for > answers long before I post any photos of meteorwrongs. > Here's some examples of some that I've either never posted > and/or only asked privately for advice on. > > SAMPLES OF ODD ROCKS: http://www.meteoritesusa.com/odd/meteorwrongs.htm > > The point is this new ODD ROCK is just that. Odd. If anyone > can tell me what it is, or perhaps show me some comparable > photos that would be great. > > This stone http://www.meteoritesusa.com/odd/ > was in a batch of meteorites I purchased. I can guarantee > that if you were to hold this stone in your hand and look at > the "crust" that seems to on this piece, you'd say "Hmmm" > too. The photos though good, do not do justice to it, and I > imagine that' why people don't go around identifying > meteorites from photos... ;) > > Regards, > Eric Wichman > Meteorites USA > > > > > > cdtuc...@cox.net > wrote: > > -Mark, > > This is one of the things I miss most about David > Kring being out of the Biz of classifications. He was the > one that was always willing to take the time to show you and > explain exactly what you were looking at. He is with NASA > now But he used to frequent the Tucson show when he lived > here. > > To your other points; It seems to me the question was > "is this a meteorite"? IMHO I see a rock that could be one > if it came from space. So, is that fusion crust or not? > David showed me multiple examples of Desert varnish It > actually looks very little like fusion crust. Desert varnish > is very thin and being just a residue of manganese it is > very dull or flat black and rarely shiny. Whereas fusion > crust always has some heft to it. you can easily see real > thickness on a cut section. It is always a measurable > thickness where Desert varnish requires a microscope to see > it's thickness. Another imposter is Magma stuck to the > outside of the rock. Magma is usually too thick to be fusion > crust but again fairly easy to recognize once a you have > seen the difference in person. To this point I wish Science > would recognize that some of us do know this and would never > confront the
[meteorite-list] Asteroid Impacts 3.9 Billion Years Ago May Have Enhanced Life On Earth
Asteroid Attack 3.9 Billion Years Ago May Have Enhanced Early Life On Earth, Science Daily, May 20, 2009, http://www.sciencedaily.com/releases/2009/05/090520140403.htm Abramov, O.,and S. J. Mojzsis. Microbial habitability of the Hadean Earth during the late heavy bombardment. Nature. vol. 459, no. 7245, pp. 419-422. http://www.nature.com/nature/journal/v459/n7245/full/nature08015.html Yours, Paul H. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Checkout problems with Galactic Stone website
Hi Listees, It has been brought to my attention by 3 other list members that my website is acting goofy. It is not accepting orders from people in the UK, and some credit card orders are not going through for users regardless of country. I don't know what is causing this issue and I am working on fixing it. If anyone reading this tried to order something, but the process failed, please contact me and let me know what happened - this will be helpful in tracking down the bug. Anyone who tried to order and cannot, I will take orders manually via email - please contact me offlist. Best regards, MikeG -- . Michael Gilmer (Louisiana, USA) Member of the Meteoritical Society. Member of the Bayou Region Stargazers Network. Websites - http://www.galactic-stone.com and http://www.glassthrower.com .. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Large available for trade lot -- AD
Hi, All, Below are several meteorites I've decided to trade out of the collection, as exhibit specimens related to outreach is pretty much where the focus will be going forward. Some are noted to the side, but all have information via the link. In the past, I've tried to exclusively trade duplicate or excess material, as I really have no desire to participate in the dealer side of this arena. That said, it has many times proven difficult to find a good trade match, even when just a specimen or two was available on my end, so this time around I'll provide an offline price to anyone who might want to purchase rather than trade for a specific meteorite. There are some epic specimens on the list, and this will be painful -- but I'm not cut out for inventory control ;-) http://www.fallingrocks.com/Collections/Agen.htm 1814 fall http://www.fallingrocks.com/Collections/Alfianello.htm 1883 fall http://www.fallingrocks.com/Collections/Allende.htm 68.3 gram complete individual ONLY http://www.fallingrocks.com/Collections/Aubres.htm 1836 fall, 800 grams TKW, type specimen http://www.fallingrocks.com/Collections/Berlanguillas.htm 1811 fall, "a few kilograms" TKW http://www.fallingrocks.com/Collections/BonitaSprings.htm Florida Indian mound http://www.fallingrocks.com/Collections/Buschhof.htm 1863 fall, 5 kg TKW http://www.fallingrocks.com/Collections/ChiangKhan.htm Thailand boat fall http://www.fallingrocks.com/Collections/DarAlGani180.htm main mass, LL3.9 http://www.fallingrocks.com/Collections/DarAlGani294.htm main mass, LL4 http://www.fallingrocks.com/Collections/Dhofar1136.htm main mass http://www.fallingrocks.com/Collections/Farmington.htm 1890 fall http://www.fallingrocks.com/Collections/HammadahAlHamra181.htm main mass, LL4-6 http://www.fallingrocks.com/Collections/Hessle.htm 1869 fall, complete slice http://www.fallingrocks.com/Collections/Indarch.htm 1891 EH4 fall http://www.fallingrocks.com/Collections/Juvinas.htm 1821 eucrite fall http://www.fallingrocks.com/Collections/Misshof.htm 1890 fall, 5.8 kg TKW http://www.fallingrocks.com/Collections/NWA162.htm H4, complete slice http://www.fallingrocks.com/Collections/NWA270.htm another early NWA http://www.fallingrocks.com/Collections/NWA876.htm main mass http://www.fallingrocks.com/Collections/NWA1183.htm shergottite http://www.fallingrocks.com/Collections/NWA2377.htm LL3.7 http://www.fallingrocks.com/Collections/NWA5062.htm 113.5gm & 33.4gm ONLY, LL4 http://www.fallingrocks.com/Collections/NWA5138.htm main mass http://www.fallingrocks.com/Collections/NWA5367.htm main mass http://www.fallingrocks.com/Collections/NWA5368.htm main mass, L3.8, oriented http://www.fallingrocks.com/Collections/Parnalee.htm 1857 LL3.6 Indian fall http://www.fallingrocks.com/Collections/Selma.htm with Smithsonian monograph http://www.fallingrocks.com/Collections/Stannern.htm 1808 eucrite fall http://www.fallingrocks.com/Collections/Talampaya.htm Andes mountain climber http://www.fallingrocks.com/Collections/Worden.htm Michigan car http://www.fallingrocks.com/Collections/Zunhua.htm big, crusted specimen http://www.fallingrocks.com/trade.htm assorted All the best, Dave Gheesling IMCA #5967 www.fallingrocks.com __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Sterling, help with some calcs please
EMan, EP, List, The sea-floor-dredged fragment is of a carbonaceous chondrite. It's a "fossilized" meteorite, meaning it's seriously been altered by the terrestrial environment, with replaced minerals and all the rest. It was found some years ago. I've seen a photo of it, but can't find that website today, but it is an encapsulated clast that can only be identified as carbonaceous by the simple fact that it's so rich in carbon. The discovery article is: "A meteorite from the Cretaceous/Tertiary boundary" by Frank T. Kyte The Abstract is at: http://www.nature.com/nature/journal/v396/n6708/abs/396237a0.html "Cretaceous/Tertiary boundary sediments are now widely recognized to contain the record of a large asteroid or comet impact event, probably at the site of the Chicxulub crater on the Yucatan peninsula. After nearly two decades of intensive research, however, much remains unknown about the specific nature of the projectile and of the impact event itself. Here we describe a 2.5-mm fossil meteorite found in sediments retrieved from the Cretaceous/Tertiary boundary in the North Pacific Ocean that we infer may be a piece of the projectile responsible for the Chicxulub crater. Geochemical and petrographic analyses of this meteorite indicate that it probably came from a typical metal- and sulphide-rich carbonaceous chondrite rather than the porous aggregate type of interplanetary dust considered typical of cometary materials. The fact that meteorite survival should be enhanced by impacts at low (asteroidal) velocities also implies that this meteorite had an asteroidal rather than a cometary origin." The impact angle at Chicxulub appears to have been low, 20 to 30 degrees above the horizontal. Nice animation at the bottom of this webpage: http://www.psi.edu/~betty/chicx3d.html Then, by a happy coincidence, a year or so ago, an orbital regression program revealed that the big impactor was likely a large chunk of the breakup fragments of the parent body of the Baptistina asteroid family: http://en.wikipedia.org/wiki/Chicxulub_crater#Astronomical_origin_of_asteroid The original paper by Bottke can be found here as a pdf: http://www.boulder.swri.edu/~bottke/Reprints/Bottke_2007_Nature_449_48_Baptistina_KT.pdf I call it a happy coincidence because the Baptistina Family are... you guessed it -- carbonaceous chondrites, like the biggest surviving member, which is 298 Baptistina. The original or parent body was about 170 kilometers across. Another fragment of the Baptistina Family is believed to have made the crater Tycho on the Moon 108 million years ago. Those guys really got around... There's a paper that calculates that there should be lots of Earthite chunks from the Chicxulub impact littering the Moon and Mars. They call them Chicxulubites! http://www.igeofcu.unam.mx/divulgacion/geofinternacional/iframes/anteriores/2008/03/poveda.pdf Add that term to your list of meteorite types... and watch for them on eBay. As for the latest Keller piece, I don't bother to read Keller any more. Here's her own university's press release summarizing it: http://www.dailyprincetonian.com/2009/05/06/23652/ Her papers are dense and jargonistic, hard for someone who's not an academic geologist to plow through, but even I found the "hole" in her original block-buster paper, "proving" a missing 300,000 years between impact and K-T boundary. That hole is that 275,000 years of the missing 300,000 years is missing from her evidence, with no evidence that it's missing. In other words, there really is no gap, or at most a possible 25,000 year gap, hard to measure accurately. That's as good as "right away" for me. Then I discovered her biggest opponent -- Smit. He's a Dutch/ American sedimentologist. He basically takes her so-called evidence apart piece-by-piece (and he demonstrates that it is largely incompentent, although he does not say it in those words... exactly.) You want to find out what's wrong with Keller's work? Read this: http://www.falw.vu/~smit/csdp/debates.htm Keller's now blaming the Deccan Traps, big flood basalts in India. Flood basalts coordinate perfectly with big impacts; the biggest two instances are at the K-T extinction and at the Permian extinction (the Siberian Traps) Coincidence? (That, or leprachans...) And it's easy to demonstrate the mechanism by which impacts CAUSE flood basalts! http://www.newgeology.us/presentation35.html And we have an existing perfect example on Mercury, with antipodean lava flooding opposite a big impact, so even if Keller's right... She's wrong. If you Google "keller chicxulub" at Google News, you will get scads of stuff on the latest silliness. Sterling K. Webb - Original Message - From: "Mr EMan" To: ; "E.P. Grondine" Sent: Wednesday, May 20, 2009 3:01 PM Subject: Re: [meteorite-list] Sterling, help with some calcs please From Mr Buttinsky Eman: I am a wee skeptical regarding
Re: [meteorite-list] Fw: Moroccan dealers
I would have to agree 100% with this. I have never had a bad deal from any I have purchased from. The ones I have had deals with are very cool in my book and now have me as a lifetime customer. Greg C. --- On Wed, 5/20/09, Jack Schrader wrote: > From: Jack Schrader > Subject: [meteorite-list] Fw: Moroccan dealers > To: meteorite-list@meteoritecentral.com > Date: Wednesday, May 20, 2009, 7:33 PM > > > Dear list members, > > > In regards to the current thread on Moroccan meteorite > dealers, I would just like to add my experiences to the > record for the sake of fairness. I have been buying > meteorites from various dealers in Morocco for the past > seven years and I have never once been cheated or > mistreated. I have spent many tens of thousands of dollars > and I have been more than comfortable and happy with my > dealings. And yes, there have been mistakes made and this > is the normal when dealing with human beings regardless of > the country or commodity. In every instance where a > mistake has been made in my shipment, the dealer has been > more than willing to make up for the error. I am impressed > by the honesty and integrity that I have experienced in my > dealings with the various dealers I have worked with over > the years. I have absolutely no qualms about sending money > to Morocco as I know I will get more than a fair return for > my money. The dealers that I have worked with > are some of the most honest people that I know on this > planet and I am proud to call them my friends. The dealers > that I am referring to know who they are and to each and > everyone of them I say "Thank you" for the many years of > enjoyable purchases. These men, these "Moroccan meteorite > dealers" have greatly enhanced my enjoyment of this hobby of > collecting and dealing in meteorites. I will continue to > buy from them as long as there is a meteorite left in North > West Africa. > > Again, these are my personal experiences from my dealings > with at least ten different dealers and I feel that it is > important and only fair to post my personal experiences to > the list in defense of the dealers who have always treated > me fairly, honestly and with respect. You can only ever > "get as good as you give" in this life. > > Best wishes and a Happy Memorial Day weekend to all! > Jack > > > > > > __ > http://www.meteoritecentral.com > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Fw: Moroccan dealers
Dear list members, In regards to the current thread on Moroccan meteorite dealers, I would just like to add my experiences to the record for the sake of fairness. I have been buying meteorites from various dealers in Morocco for the past seven years and I have never once been cheated or mistreated. I have spent many tens of thousands of dollars and I have been more than comfortable and happy with my dealings. And yes, there have been mistakes made and this is the normal when dealing with human beings regardless of the country or commodity. In every instance where a mistake has been made in my shipment, the dealer has been more than willing to make up for the error. I am impressed by the honesty and integrity that I have experienced in my dealings with the various dealers I have worked with over the years. I have absolutely no qualms about sending money to Morocco as I know I will get more than a fair return for my money. The dealers that I have worked with are some of the most honest people that I know on this planet and I am proud to call them my friends. The dealers that I am referring to know who they are and to each and everyone of them I say "Thank you" for the many years of enjoyable purchases. These men, these "Moroccan meteorite dealers" have greatly enhanced my enjoyment of this hobby of collecting and dealing in meteorites. I will continue to buy from them as long as there is a meteorite left in North West Africa. Again, these are my personal experiences from my dealings with at least ten different dealers and I feel that it is important and only fair to post my personal experiences to the list in defense of the dealers who have always treated me fairly, honestly and with respect. You can only ever "get as good as you give" in this life. Best wishes and a Happy Memorial Day weekend to all! Jack __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NWA 4734 Lunar AD update
Hi to everyone, I hope the day has been good for you all! Just to update the AD for the Lunar so nobody has to email anymore about pieces that have been sold, all samples of the NWA 4734 except for the .65g and .80g have been sold. .65g - $650 http://i27.photobucket.com/albums/c165/jedisdiamond/NWA473465g.jpg .80g - $800 http://i27.photobucket.com/albums/c165/jedisdiamond/NWA473480g.jpg Greg C. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Hell not so hellish
http://www.sciencedaily.com/releases/2009/05/090520140403.htm Asteroid Attack 3.9 Billion Years Ago May Have Enhanced Early Life On Earth ScienceDaily (May 20, 2009) The bombardment of Earth nearly 4 billion years ago by asteroids as large as Kansas would not have had the firepower to extinguish potential early life on the planet and may even have given it a boost, says a new University of Colorado at Boulder study. Impact evidence from lunar samples, meteorites and the pockmarked surfaces of the inner planets paints a picture of a violent environment in the solar system during the Hadean Eon 4.5 to 3.8 billion years ago, particularly through a cataclysmic event known as the Late Heavy Bombardment about 3.9 million years ago. Although many believe the bombardment would have sterilized Earth, the new study shows it would have melted only a fraction of Earth's crust, and that microbes could well have survived in subsurface habitats, insulated from the destruction. "These new results push back the possible beginnings of life on Earth to well before the bombardment period 3.9 billion years ago," said CU-Boulder Research Associate Oleg Abramov. "It opens up the possibility that life emerged as far back as 4.4 billion years ago, about the time the first oceans are thought to have formed." A paper on the subject by Abramov and CU-Boulder geological sciences Professor Stephen Mojzsis appears in the May 21 issue of Nature. Because physical evidence of Earth's early bombardment has been erased by weathering and plate tectonics over the eons, the researchers used data from Apollo moon rocks, impact records from the moon, Mars and Mercury, and previous theoretical studies to build three-dimensional computer models that replicate the bombardment. Abramov and Mojzsis plugged in asteroid size, frequency and distribution estimates into their simulations to chart the damage to the Earth during the Late Heavy Bombardment, which is thought to have lasted for 20 million to 200 million years. The 3-D models allowed Abramov and Mojzsis to monitor temperatures beneath individual craters to assess heating and cooling of the crust following large impacts in order to evaluate habitability, said Abramov. The study indicated that less than 25 percent of Earth's crust would have melted during such a bombardment. The CU-Boulder researchers even cranked up the intensity of the asteroid barrage in their simulations by 10-fold -- an event that could have vaporized Earth's oceans. "Even under the most extreme conditions we imposed, Earth would not have been completely sterilized by the bombardment," said Abramov. Instead, hydrothermal vents may have provided sanctuaries for extreme, heat-loving microbes known as "hyperthermophilic bacteria" following bombardments, said Mojzsis. Even if life had not emerged by 3.9 billion years ago, such underground havens could still have provided a "crucible" for life's origin on Earth, Mojzsis said. The researchers concluded subterranean microbes living at temperatures ranging from 175 degrees to 230 degrees Fahrenheit would have flourished during the Late Heavy Bombardment. The models indicate that underground habitats for such microbes increased in volume and duration as a result of the massive impacts. Some extreme microbial species on Earth today -- including so-called "unboilable bugs" discovered in hydrothermal vents in Yellowstone National Park -- thrive at 250 F. Geologic evidence suggests that life on Earth was present at least 3.83 billion years ago, said Mojzsis. "So it is not unreasonable to suggest there was life on Earth before 3.9 billion years ago. We know from the geochemical record that our planet was eminently habitable by that time, and this new study sews up a major problem in origins of life studies by sweeping away the necessity for multiple origins of life on Earth." Most planetary scientists believe a rogue planet as large as Mars smacked Earth with a glancing blow 4.5 billion years ago, vaporizing itself and part of Earth. The collision would have created an immense vapor cloud from which moonlets, and later our moon, coalesced, Mojzsis said. "That event, which preceded the Late Heavy Bombardment by at least 500 million years, would have effectively hit Earth's re-set button," he said. "But our results strongly suggest that no events since the moon formation were capable of destroying Earth's crust and wiping out any biosphere that was present," Mojzsis said. "Instead of chopping down the tree of life, our view is that the bombardment pruned it." The results also support the potential for microbial life on other planets like Mars and perhaps even rocky, Earth-like planets in other solar systems that may have been resurfaced by impacts, said Abramov. "Exactly when life originated on Earth is a hotly debated topic," says NASA's Astrobiology Discipline Scientist Michael H. New, manager of the Exobiology and Evolutionary Biology program. "These findings are signific
[meteorite-list] AD 130kg Campo
Hello Bob; That is an awesome campo. It has a very unique shape and is definately a meteorite collectors dream.A museum would be well advised to acquire it for public display,a better example of an iron meteorite would be hard to find.Thanks for sharing the photo and the offer to sell to some fortunate collector or museum. Best Regards and good luck on your sale;Herman Archer IMCA # 2770 **Recession-proof vacation ideas. Find free things to do in the U.S. (http://travel.aol.com/travel-ideas/domestic/national-tourism-week?ncid=emlcntustrav0002) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rocks from Space Picture of the Day - May 20, 2009
On Wed, 20 May 2009 13:44:43 -0700, you wrote: > > >Anybody sees a ghost about to dispatch Pacman? No, but I see a happy cyclops. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Rocks from Space Picture of the Day - May 20, 2009
Anybody sees a ghost about to dispatch Pacman? Carl _ Insert movie times and more without leaving Hotmail®. http://windowslive.com/Tutorial/Hotmail/QuickAdd?ocid=TXT_TAGLM_WL_HM_Tutorial_QuickAdd1_052009 __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] MRO HiRISE Images - May 20, 2009
MARS RECONNAISSANCE ORBITER HIRISE IMAGES May 20, 2009 o Crater Ejecta in Utopia Region http://hirise.lpl.arizona.edu/PSP_010100_2165 o Evolution of Dune Field from Crater http://hirise.lpl.arizona.edu/PSP_010077_2520 o Monitoring Change in Bright Wind Streaks http://hirise.lpl.arizona.edu/PSP_009777_1955 o Dunes http://hirise.lpl.arizona.edu/ESP_011633_1195 o Fans and Polygons http://hirise.lpl.arizona.edu/ESP_011630_0930 o Sawtooth Pattern in Carbon Dioxide Ice http://hirise.lpl.arizona.edu/ESP_011610_0935 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. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NASA Study Shows Asteroids May Have Accelerated Life on Earth
May 20, 2009 Dwayne Brown Headquarters, Washington 202-358-1726 dwayne.c.br...@nasa.gov Jim Scott University of Colorado, Boulder 303-492-3114 jim.sc...@colorado.edu RELEASE: 09-111 NASA STUDY SHOWS ASTEROIDS MAY HAVE ACCELERATED LIFE ON EARTH WASHINGTON -- A NASA-funded study indicates that an intense asteroid bombardment nearly 4 billion years ago may not have sterilized the early Earth as completely as previously thought. The asteroids, some the size of Kansas, possibly even provided a boost for early life. The study focused on a particularly cataclysmic occurrence known as the Late Heavy Bombardment, or LHB. This event occurred approximately 3.9 billion years ago and lasted 20 to 200 million years. In a letter published in the May 21 issue of Nature magazine titled "Microbial Habitability of the Hadean Earth during the Late Heavy Bombardment," Oleg Abramov and Stephen J. Mojzsis, astrobiologists at the University of Colorado's Department of Geological Sciences, report on the results of a computer modeling project designed to study the heating of Earth by the bombardment. Results from their project show that while the Late Heavy Bombardment might have generated enough heat to sterilize Earth's surface, microbial life in subsurface and underwater environments almost certainly would have survived. "Exactly when life originated on Earth is a hotly debated topic," said Michael H. New, the astrobiology discipline scientist and manager of the Exobiology and Evolutionary Biology Program at NASA Headquarters in Washington. "These findings are significant because they indicate that if life had begun before the LHB or some time prior to 4 billion years ago, it could have survived in limited refuges and then expanded to fill our world." "Our new results point to the possibility life could have emerged about the same time that evidence for our planet's oceans first appears," said Mojzsis, principal investigator of the project. A growing scientific consensus is that during our solar system's formation, planetary bodies were pummeled by debris throughout the Late Heavy Bombardment. A visual record of the event is preserved in the form of the scarred face of our moon. On Earth, all traces of the bombardment appear to have been erased by rock recycling forces like weathering, volcanoes or other conditions that cause the crust to move or change. Surface habitats for microbial life on early Earth would have been destroyed repeatedly by the bombardment. However, at the same time, impacts could have created subsurface habitats for life, such as extensive networks of cracks or even hydrothermal vents. Any existing microbial life on Earth could have found refuge in these habitats. If life had not yet emerged on Earth by the time of the bombardment, these new subsurface environments could have been the place where terrestrial life emerged. "Even under the most extreme conditions we imposed on our model, the bombardment could not have sterilized Earth completely," said Abramov, lead author of the paper. "Our results are in line with the scientific consensus that hyperthermophilic, or 'heat-loving,' microbes could have been the earliest life forms on Earth, or survivors from an even more ancient biosphere. The results also support the potential for the persistence of microbial biospheres on other planetary bodies whose surfaces were reworked by the bombardment, including Mars." NASA's Astrobiology Program's Exobiology and Evolutionary Biology Program and the NASA Astrobiology Institute at NASA's Ames Research Center at Moffett Field, Calif., through its support of NASA's Postdoctoral Program, provided funding for this research. The Astrobiology Program supports research into the origin, evolution, distribution and future of life on Earth and the potential for life elsewhere. For more information about NASA's astrobiology activities, visit: http://astrobiology.nasa.gov -end- __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Sterling, help with some calcs please
>From Mr Buttinsky Eman: I am a wee skeptical regarding meteorite fragments >from ancient impacts in general and Chixculub specifically. There is also an >H4 fragment recovered in sea floor dredging which was announced as the smoking >gun. Unfortunately I continue to get group postings reliably so again I am >out on a limb so I haven't read Keller's latest. But I am looking elsewhere >for this report. Elton --- On Wed, 5/13/09, E.P. Grondine wrote: > > Hi Sterling, all - > > Given Keller's latest KT announcements, could you give us > some rough numbers on infra-red, blast overpressures, winds, > and molten rock vapor from the KT impact? Given the > kt-fossil meteorite, it seems safe to me to infer a comet > impactor. > > E.P. Grondine > Man and Impact in the Americas __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Question about cutting stones on a small saw
Hi Mike, I found these to be helpfull when I started experimenting with cutting: http://www.meteorite-times.com/Back_Links/2004/January/Jims_Fragments.htm http://www.meteorite-times.com/Back_Links/2008/march/Jims_Fragments.htm Succes, Rob Lenssen - Original Message - From: "Galactic Stone & Ironworks" To: "Meteorite List" Sent: Wednesday, May 20, 2009 8:38 PM Subject: [meteorite-list] Question about cutting stones on a small saw Hi List! I have a question for the cutting gurus and saw experts. Recently I purchased a new Lortone Rock Rascal 6" lapidary trimsaw, primarily for cutting small UNWA stones. I also bought all of the accessory goodies - the clamp vise, 3 blades of varying thicknesses and some lubricant. Admittedly, I am a total idiot when it comes to cutting - I know nothing other than what I have read. Since I have no firsthand experience cutting stones, I am wondering about a few things that I can't seem to find easy answers to. I do have experience with power tools and cutting wood with a variety of saws, so I know the fundamentals of cutting and saws in general, but lapidary saws and cutting stones is alien to me. The saw owner's manual is not targeted towards a newbie and there doesn't appear to be any online tutorials about how to use it to cut stony meteorites. So, please forgive the stupid nature of these questions - 1) How do I lubricate with this saw? It doesn't appear to be a "wet saw" - I see no place to add lubricant or no tank to hold it. What am I supposed to do in this respect? Am I missing something? 2) I have a very thin "Lapcraft Laser Dia Blade" that is .006 thickness. It seems impossibly thin and "floppy" - how is it possible to cut a straight line using something like this? Doesn't it wander all over the place while cutting? I assume that this blade is only useful for friable specimens that would offer little cutting resistance? 3) What lubricant should I use? I have heard to use pure alcohol and some use distilled water. I bought something called "Dia-Cut" that is a red concentrate to be mixed with water. But I later read that lubricants like this should be avoided. 4) What kind of blade is recommended for general cutting of H and L type chondrites? I have the blade that came with the saw (not sure what it is exactly), the .006 blade I mentioned above, and a "Meteorite" blade that is .012 thickness. The meteorite blade is a Johnson Brothers that I bought from Graves. Here is a link to the saw I have - http://www.therockshed.com/equipment/modj6.jpg (I didn't buy from that vendor, it's just the first photo of it that I saw) Thanks in advance! MikeG -- . Michael Gilmer (Louisiana, USA) Member of the Meteoritical Society. Member of the Bayou Region Stargazers Network. Websites - http://www.galactic-stone.com and http://www.glassthrower.com .. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD 130kg Campo
Hello List- I have a very nice, large Campo for sale. If you wish to view it, simply go to http://www.meteoritebiz.com/campo130kg.html Cheers, Bob __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] WG: Meteorites and Moroccans and the List
Tanmirt Nels, I perfectly agree with you and I respect you. I advice every collector to buy as much great stones as he can directly from Moroccans, and if you are ripped off we Moroccans will unite to help you to get your money back. I hope my Moroccans friends accept this idea, this is a good plan to protect our reputation and business. My best Aziz --- On Wed, 5/20/09, Martin Altmann wrote: > From: Martin Altmann > Subject: [meteorite-list] WG: Meteorites and Moroccans and the List > To: meteorite-list@meteoritecentral.com > Date: Wednesday, May 20, 2009, 1:38 AM > >From Nels > > -Ursprüngliche Nachricht- > Von: pinwalla [mailto:pinwa...@nep.net] > > Gesendet: Dienstag, 19. Mai 2009 23:57 > An: Martin Altmann > Betreff: Re: [meteorite-list] Meteorites and Moroccans and > the List > > > Martin, Please pass this on for me! I have dealt with and > met many > Moroccans in the meteorite field. To a person they were all > honest and > perfectly trustworthy. If they were to actually "cheat" > someone, they would > soon have no business at all. Are people dishonest? > Yes-it's in varying > degrees in every one of us, no matter the color of hair, > eyes or skin. > Generally I do not have trouble with anyone and I have > never had trouble > coming from NWA!! I have sent actually thousands of dollars > to NWA for > specimens-I am very happy with what I have in exchange! If > you trust people > and treat them as you would wish to be treated-with respect > and > consideration you normally will not be disappointed. I am > sure someone has > had a "difficult" deal with someone, somewhere-but those of > you who > have-can you before your own self say it was always "the > other guys fault"? > I think we all share in the burden of being gentlemen and > women to each > other. I think this thread of trashing someone else, > blaming everyone else > is demeaning and shows the true character of those few who > continually do > it! If we do not learn to trust and get along we may never > survive as a > species! Azule, Nels > > > > > > __ > http://www.meteoritecentral.com > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Question about cutting stones on a small saw
Hi List! I have a question for the cutting gurus and saw experts. Recently I purchased a new Lortone Rock Rascal 6" lapidary trimsaw, primarily for cutting small UNWA stones. I also bought all of the accessory goodies - the clamp vise, 3 blades of varying thicknesses and some lubricant. Admittedly, I am a total idiot when it comes to cutting - I know nothing other than what I have read. Since I have no firsthand experience cutting stones, I am wondering about a few things that I can't seem to find easy answers to. I do have experience with power tools and cutting wood with a variety of saws, so I know the fundamentals of cutting and saws in general, but lapidary saws and cutting stones is alien to me. The saw owner's manual is not targeted towards a newbie and there doesn't appear to be any online tutorials about how to use it to cut stony meteorites. So, please forgive the stupid nature of these questions - 1) How do I lubricate with this saw? It doesn't appear to be a "wet saw" - I see no place to add lubricant or no tank to hold it. What am I supposed to do in this respect? Am I missing something? 2) I have a very thin "Lapcraft Laser Dia Blade" that is .006 thickness. It seems impossibly thin and "floppy" - how is it possible to cut a straight line using something like this? Doesn't it wander all over the place while cutting? I assume that this blade is only useful for friable specimens that would offer little cutting resistance? 3) What lubricant should I use? I have heard to use pure alcohol and some use distilled water. I bought something called "Dia-Cut" that is a red concentrate to be mixed with water. But I later read that lubricants like this should be avoided. 4) What kind of blade is recommended for general cutting of H and L type chondrites? I have the blade that came with the saw (not sure what it is exactly), the .006 blade I mentioned above, and a "Meteorite" blade that is .012 thickness. The meteorite blade is a Johnson Brothers that I bought from Graves. Here is a link to the saw I have - http://www.therockshed.com/equipment/modj6.jpg (I didn't buy from that vendor, it's just the first photo of it that I saw) Thanks in advance! MikeG -- . Michael Gilmer (Louisiana, USA) Member of the Meteoritical Society. Member of the Bayou Region Stargazers Network. Websites - http://www.galactic-stone.com and http://www.glassthrower.com .. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite or Meteorwrong?
Mark, Carl, List, I've scoured the web looking for photographs of andesite and see "some" resemblance but not something conclusive for identification of this stone. Though it does looking similar. I'm not asking if this is a metoerite, I'm asking if it's NOT a meteorite, what is it? As we know fusion crust is one of the biggest identification factors considered in the ID of meteorites. (I can see where this is going) and there are literally hundreds of examples of different textures, and thicknesses, and visual variances in fusion crust that it's not funny. Which is why we have other tests we use to properly identify a rock as a meteorite. Now before all you guys jump on me for asking the dreaded "Is this a meteorite?" question or yell at me about how to identify a meteorite, I'd like to clarify a few things. This is a "ROCK" to me, nothing more. I've examined literally thousands of meteorites and thrown away tens of kilos of terrestrial stones that somehow got mixed into batches of meteorites I've purchased. So the probability of this ROCK being a meteorwrong is there. When you consider the sheer numbers of meteorites that I've examined, it's no wonder that from time to time I will come across a stone like this that perplexes me and makes me say "What the heck is that?". I have two good sized drawers FULL of meteorwrongs that I look through every now and then just to see if I can pull out a few real meteorites as my knowledge of meteorites grows. Here's a NICE meteorite I recently found in my meteorwrong drawer: EXTERIOR: http://www.meteoritesusa.com/images/odd/odd-1e.jpg INTERIOR: http://www.meteoritesusa.com/images/odd/odd-1a.jpg I get a whole bunch of odd rocks, and only post to the list when I can't find an answer myself. Believe me I look for answers long before I post any photos of meteorwrongs. Here's some examples of some that I've either never posted and/or only asked privately for advice on. SAMPLES OF ODD ROCKS: http://www.meteoritesusa.com/odd/meteorwrongs.htm The point is this new ODD ROCK is just that. Odd. If anyone can tell me what it is, or perhaps show me some comparable photos that would be great. This stone http://www.meteoritesusa.com/odd/ was in a batch of meteorites I purchased. I can guarantee that if you were to hold this stone in your hand and look at the "crust" that seems to on this piece, you'd say "Hmmm" too. The photos though good, do not do justice to it, and I imagine that' why people don't go around identifying meteorites from photos... ;) Regards, Eric Wichman Meteorites USA cdtuc...@cox.net wrote: -Mark, This is one of the things I miss most about David Kring being out of the Biz of classifications. He was the one that was always willing to take the time to show you and explain exactly what you were looking at. He is with NASA now But he used to frequent the Tucson show when he lived here. To your other points; It seems to me the question was "is this a meteorite"? IMHO I see a rock that could be one if it came from space. So, is that fusion crust or not? David showed me multiple examples of Desert varnish It actually looks very little like fusion crust. Desert varnish is very thin and being just a residue of manganese it is very dull or flat black and rarely shiny. Whereas fusion crust always has some heft to it. you can easily see real thickness on a cut section. It is always a measurable thickness where Desert varnish requires a microscope to see it's thickness. Another imposter is Magma stuck to the outside of the rock. Magma is usually too thick to be fusion crust but again fairly easy to recognize once a you have seen the difference in person. To this point I wish Science would recognize that some of us do know this and would never confront them unless we had considered these factors. So, I ask is this fusion crust I see? Where was it found? Was it on the living room floor under a big hole in the roof or was it in a field with no other rocks around? Mars for example has plenty of basalt and andesite. IMy 2 cents. Carl Esparza IMCA 5829 --- Mark Bowling wrote: I was mostly going by color. Basalts tend to be darker, and granitic rocks are very light in color. But it's really hard to look at photos... Having it in hand would be much easier (a necessity really). I would be interested in learning what a professional would consider when faced with such a rock... It would be cool if someday the IMCA could host an ID workshop, maybe one year at Tucson or one of the European shows (where you're guaranteed a group of possible participants). Mark --- On Wed, 5/20/09, Michael Fowler wrote: From: Michael Fowler Subject: Re: [meteorite-list] Meteorite or Meteorwrong? To: meteorite-list@meteoritecentral.com Cc: "Michael Fowler" Date: Wednesday, May 20, 2009, 7:20 AM Most andesites have phenocrysts. This one doesn't. Still could be andesite, but maybe not. Mike Fowler Chicago
Re: [meteorite-list] Moroccan fraudsters were even pictured - WHO?
" Tell us who the Moroccan fraudsters are." Very important question Aziz --- On Tue, 5/19/09, Timothy Heitz wrote: > From: Timothy Heitz > Subject: [meteorite-list] Moroccan fraudsters were even pictured - WHO? > To: Meteorite-list@meteoritecentral.com, "Adam Hupe" > , "Adam Hupe" > Cc: "Norbert Classen" > Date: Tuesday, May 19, 2009, 2:03 PM > Hello Adam, > > Don't you think you should tell IMCA who it was the rip you > off, so someone else don't make the same mistake? > > I thought thats what IMCA was about, protecting the > collector. > > Tell us who the Moroccan fraudsters are. > > > Best Regards, > Tim Heitz > > > > > > > > > > - Original Message - From: "Abdelaziz Alhyane" > > To: > Sent: Tuesday, May 19, 2009 12:21 PM > Subject: [meteorite-list] Meteorites and Moroccans > > > > > > """ > > > > The Moroccans, on the other hand, are becoming > > increasingly sneaky. They will send a sample of > a > > real Martian meteorite and then send a load of crap > > which you will never see a refund on. A couple > of > > Moroccan fraudsters were even pictured at the last > > meteorite show as can bee seen by the postings to the > > List. > > > > I now refuse to buy from either one! > > > > Best Regards, > > > > Adam > > > > List, > > This is an example of what I was talking about, Is > that happened to Adam or he just want to hurt our business > which handereds of nomads get their bread from after sending > months on the high desert for a few dollars. > > The message is clear, it is for collectors to not > buying from Moroccans after we can sell directly to > collectors. > > Adam does not stop buying from Moroccans, hes a liar, > After this message we all know he bought NWA5000 and this > 'ROCK" is another story. > > All I want and most of us, from the is to make things > clear, if I'm ripped off by someone, I would tell his name > after many times trying to get paid or get my stone(s) back, > and then everybody must talk to him, if he does not fix the > problem, everybody shoud STOP dealling with him. > > I hope we will not read negative comments about > Moroccans based on nothing than competition and > selfeshness. > > Just my opinion > > > > Thanks > > Aziz > > > > > > > > > > __ > > http://www.meteoritecentral.com > > Meteorite-list mailing list > > Meteorite-list@meteoritecentral.com > > http://six.pairlist.net/mailman/listinfo/meteorite-list > > > __ > http://www.meteoritecentral.com > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite or Meteorwrong?
-Mark, This is one of the things I miss most about David Kring being out of the Biz of classifications. He was the one that was always willing to take the time to show you and explain exactly what you were looking at. He is with NASA now But he used to frequent the Tucson show when he lived here. To your other points; It seems to me the question was "is this a meteorite"? IMHO I see a rock that could be one if it came from space. So, is that fusion crust or not? David showed me multiple examples of Desert varnish It actually looks very little like fusion crust. Desert varnish is very thin and being just a residue of manganese it is very dull or flat black and rarely shiny. Whereas fusion crust always has some heft to it. you can easily see real thickness on a cut section. It is always a measurable thickness where Desert varnish requires a microscope to see it's thickness. Another imposter is Magma stuck to the outside of the rock. Magma is usually too thick to be fusion crust but again fairly easy to recognize once a you have seen the difference in person. To this point I wish Science would recognize that some of us do know this and would never confront them unless we had considered these factors. So, I ask is this fusion crust I see? Where was it found? Was it on the living room floor under a big hole in the roof or was it in a field with no other rocks around? Mars for example has plenty of basalt and andesite. IMy 2 cents. Carl Esparza IMCA 5829 --- Mark Bowling wrote: > > I was mostly going by color. Basalts tend to be darker, and granitic rocks > are very light in color. But it's really hard to look at photos... Having > it in hand would be much easier (a necessity really). > > I would be interested in learning what a professional would consider when > faced with such a rock... It would be cool if someday the IMCA could host an > ID workshop, maybe one year at Tucson or one of the European shows (where > you're guaranteed a group of possible participants). > > Mark > > --- On Wed, 5/20/09, Michael Fowler wrote: > > > From: Michael Fowler > > Subject: Re: [meteorite-list] Meteorite or Meteorwrong? > > To: meteorite-list@meteoritecentral.com > > Cc: "Michael Fowler" > > Date: Wednesday, May 20, 2009, 7:20 AM > > Most andesites have > > phenocrysts. This one doesn't. Still could be > > andesite, but maybe not. > > > > Mike Fowler > > Chicago > > > > > > > Mark B.>>I'd have to say andesite (definitely > > not granite). << > > > > > > Well...after some page turning and googling etc, I > > have to now agree with > > > Mark that this rock is probably some sort of > > andesite...and definitely not > > > granite. I've never seen so many different rocks that > > I formerly simply > > > referred to as granite. :O) I haven't found a totally > > matching photo of > > > andesite to the photo eric referred to, but the > > literature gave me the impression > > > that andesite is what he has or is at least a good > > guess. > > > GeoZay > > > > > >> Looks like a fine grained basalt covered with > > desert varnish. > > >> > > >> I see no fusion crust (flow lines etc.) and no > > regamaglypts. In the > > >> cut surface, no metal, no chondrules, and no heat > > affected zone. > > >> > > >> Mike Fowler > > >> Chicago > > __ > > http://www.meteoritecentral.com > > Meteorite-list mailing list > > Meteorite-list@meteoritecentral.com > > http://six.pairlist.net/mailman/listinfo/meteorite-list > > > __ > http://www.meteoritecentral.com > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite or Meteorwrong?
I was mostly going by color. Basalts tend to be darker, and granitic rocks are very light in color. But it's really hard to look at photos... Having it in hand would be much easier (a necessity really). I would be interested in learning what a professional would consider when faced with such a rock... It would be cool if someday the IMCA could host an ID workshop, maybe one year at Tucson or one of the European shows (where you're guaranteed a group of possible participants). Mark --- On Wed, 5/20/09, Michael Fowler wrote: > From: Michael Fowler > Subject: Re: [meteorite-list] Meteorite or Meteorwrong? > To: meteorite-list@meteoritecentral.com > Cc: "Michael Fowler" > Date: Wednesday, May 20, 2009, 7:20 AM > Most andesites have > phenocrysts. This one doesn't. Still could be > andesite, but maybe not. > > Mike Fowler > Chicago > > > > Mark B.>>I'd have to say andesite (definitely > not granite). << > > > > Well...after some page turning and googling etc, I > have to now agree with > > Mark that this rock is probably some sort of > andesite...and definitely not > > granite. I've never seen so many different rocks that > I formerly simply > > referred to as granite. :O) I haven't found a totally > matching photo of > > andesite to the photo eric referred to, but the > literature gave me the impression > > that andesite is what he has or is at least a good > guess. > > GeoZay > > > >> Looks like a fine grained basalt covered with > desert varnish. > >> > >> I see no fusion crust (flow lines etc.) and no > regamaglypts. In the > >> cut surface, no metal, no chondrules, and no heat > affected zone. > >> > >> Mike Fowler > >> Chicago > __ > http://www.meteoritecentral.com > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite or Meteorwrong?
Most andesites have phenocrysts. This one doesn't. Still could be andesite, but maybe not. Mike Fowler Chicago Mark B.>>I'd have to say andesite (definitely not granite). << Well...after some page turning and googling etc, I have to now agree with Mark that this rock is probably some sort of andesite...and definitely not granite. I've never seen so many different rocks that I formerly simply referred to as granite. :O) I haven't found a totally matching photo of andesite to the photo eric referred to, but the literature gave me the impression that andesite is what he has or is at least a good guess. GeoZay Looks like a fine grained basalt covered with desert varnish. I see no fusion crust (flow lines etc.) and no regamaglypts. In the cut surface, no metal, no chondrules, and no heat affected zone. Mike Fowler Chicago __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite or Meteorwrong?
Mark B.>>I'd have to say andesite (definitely not granite). << Well...after some page turning and googling etc, I have to now agree with Mark that this rock is probably some sort of andesite...and definitely not granite. I've never seen so many different rocks that I formerly simply referred to as granite. :O) I haven't found a totally matching photo of andesite to the photo eric referred to, but the literature gave me the impression that andesite is what he has or is at least a good guess. GeoZay **An Excellent Credit Score is 750. See Yours in Just 2 Easy Steps! (http://pr.atwola.com/promoclk/100126575x1221823248x1201398651/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072&hmpgID=62&bcd=May Excfooter51609NO62) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] SkyRock down?
Hi List, Has anyone else noticed that Joe K's SkyRock Cafe is down? Does anytone know what happened? Best regards, MikeG -- . Michael Gilmer (Louisiana, USA) Member of the Meteoritical Society. Member of the Bayou Region Stargazers Network. Websites - http://www.galactic-stone.com and http://www.glassthrower.com .. __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks from Space Picture of the Day - May 20, 2009
http://www.rocksfromspace.org/May_20_2009.html __ **Dell Inspiron 15 Laptop: Now in 6 vibrant colors! Shop Dell’s full line of laptops. (http://pr.atwola.com/promoclk/100126575x1222399266x1201456865/aol?redir=http:%2F%2Fad.doubleclick.net%2Fclk%3B215073777%3B3703434 3%3Bf) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] WG: Meteorites and Moroccans and the List
That sounds pretty good I guess. Thank you, Nels! I agree completely and my own experiences on this field coincides perfectly. Never had problems with our Moroccan colleagues and friends - in contrary it was always a pleasure to interchanging with them. Best, Matthias - Original Message - From: "Martin Altmann" To: Sent: Wednesday, May 20, 2009 10:38 AM Subject: [meteorite-list] WG: Meteorites and Moroccans and the List From Nels -Ursprüngliche Nachricht- Von: pinwalla [mailto:pinwa...@nep.net] Gesendet: Dienstag, 19. Mai 2009 23:57 An: Martin Altmann Betreff: Re: [meteorite-list] Meteorites and Moroccans and the List Martin, Please pass this on for me! I have dealt with and met many Moroccans in the meteorite field. To a person they were all honest and perfectly trustworthy. If they were to actually "cheat" someone, they would soon have no business at all. Are people dishonest? Yes-it's in varying degrees in every one of us, no matter the color of hair, eyes or skin. Generally I do not have trouble with anyone and I have never had trouble coming from NWA!! I have sent actually thousands of dollars to NWA for specimens-I am very happy with what I have in exchange! If you trust people and treat them as you would wish to be treated-with respect and consideration you normally will not be disappointed. I am sure someone has had a "difficult" deal with someone, somewhere-but those of you who have-can you before your own self say it was always "the other guys fault"? I think we all share in the burden of being gentlemen and women to each other. I think this thread of trashing someone else, blaming everyone else is demeaning and shows the true character of those few who continually do it! If we do not learn to trust and get along we may never survive as a species! Azule, Nels __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites and Moroccans and the List
Hi Martin and all, Well put. To post without thinking is to shoot without aiming. All the negativities are what drive people to other hobbies or not getting involved in this hobby. The idea of a hobby is to take you away from everyday problems and stress. People see the infighting and think why would I want to be a part of all that. Nuff said and I thought about this post :-) --AL Mitterling Mitterling Meteorites 1) Is that all really so interesting, that so much bandwidth has to be used for that or is it really the right place here to dump such things here? 2) When will we ever learn...lalala...that with meteorites we're all in the same small boat and that it is not conducive to chop holes in the hull. Well, as said, maybe I err, I'd wish only that some would sometimes sleep on their answers before they type their posts... __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] WG: Meteorites and Moroccans and the List
>From Nels -Ursprüngliche Nachricht- Von: pinwalla [mailto:pinwa...@nep.net] Gesendet: Dienstag, 19. Mai 2009 23:57 An: Martin Altmann Betreff: Re: [meteorite-list] Meteorites and Moroccans and the List Martin, Please pass this on for me! I have dealt with and met many Moroccans in the meteorite field. To a person they were all honest and perfectly trustworthy. If they were to actually "cheat" someone, they would soon have no business at all. Are people dishonest? Yes-it's in varying degrees in every one of us, no matter the color of hair, eyes or skin. Generally I do not have trouble with anyone and I have never had trouble coming from NWA!! I have sent actually thousands of dollars to NWA for specimens-I am very happy with what I have in exchange! If you trust people and treat them as you would wish to be treated-with respect and consideration you normally will not be disappointed. I am sure someone has had a "difficult" deal with someone, somewhere-but those of you who have-can you before your own self say it was always "the other guys fault"? I think we all share in the burden of being gentlemen and women to each other. I think this thread of trashing someone else, blaming everyone else is demeaning and shows the true character of those few who continually do it! If we do not learn to trust and get along we may never survive as a species! Azule, Nels __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
