[meteorite-list] organics in Muchison.....
From: Felipe Guajardo <felipeg36_at_meteoritecentral.com>
Date: Tue, 16 Feb 2010 22:50:37 -0500 Message-ID: <18fdccaa1002161950s62a29b3ap42833d89473a5601_at_mail.gmail.com> LOL... that has to be the funniest thing I've heard today! On Tue, Feb 16, 2010 at 10:48 PM, Galactic Stone & Ironworks <meteoritemike at gmail.com> wrote: > Hi Folks! > > So it's true about the aroma of Murchison? ?I wish I had a piece big > enough to smell without actually inhaling it. > > If I try to sniff my current Murchison, it will fly up my nose. LOL > > Best regards, > > MikeG > > > > On 2/16/10, Gary Fujihara <fujmon at mac.com> wrote: >> Ha ha! ?I concur, and must confess that I too love the smell of >> Murchison in the morning. >> >> Sent from Gary's iPhone >> >> On Feb 16, 2010, at 4:31 PM, Greg Redfern <gredfern at earthlink.net> >> wrote: >> >>> My pristine Jim Strope 80g Murchison is kept under a bell jar. I >>> LOVE the smell of all the aromatic compounds. Smells like a fine >>> cognac. >>> >>> This meteorite is a joy to behold both visually and by inhaling ;-) >>> >>> Greg >>> >>> >>> -----Original Message----- >>>> From: Greg Catterton <star_wars_collector at yahoo.com> >>>> Sent: Feb 16, 2010 6:01 PM >>>> To: meteorite-list at meteoritecentral.com >>>> Subject: Re: [meteorite-list] organics in Muchison..... >>>> >>>> I have to agree, this has been an awesome discussion. >>>> Murchison is one of my favorite samples in my collection. >>>> When information comes out like this, it always adds something even >>>> more special to it. >>>> >>>> Not an ad for me but, if anyone following this does not currently >>>> have a sample, Gary has some really nice samples at very good >>>> prices on ebay: >>>> http://search.ebay.com/_W0QQsassZfujmonQQhtZ-1 >>>> >>>> Its a must have for collectors, and this recent news just goes to >>>> show that the study of this is ongoing. >>>> >>>> Any other links to information on this meteorite would be great! >>>> >>>> Greg Catterton >>>> www.wanderingstarmeteorites.com >>>> IMCA member 4682 >>>> On Ebay: http://stores.shop.ebay.com/wanderingstarmeteorites >>>> >>>> >>>> --- On Tue, 2/16/10, Matthias B?rmann <majbaermann at web.de> wrote: >>>> >>>>> From: Matthias B?rmann <majbaermann at web.de> >>>>> Subject: Re: [meteorite-list] organics in Muchison..... >>>>> To: Zelimir.Gabelica at uha.fr, meteorite-list at meteoritecentral.com >>>>> Date: Tuesday, February 16, 2010, 4:39 PM >>>>> Hello Zelimir & Murchisionados, >>>>> >>>>> highly interesting indeed: thanks so much for informing us >>>>> about your and your colleagues scientific work and giving us >>>>> so the feeling of being privileged enough to sit in the very >>>>> first row. >>>>> >>>>> If I understand your approach correct, your non-targeted >>>>> focus of investigation leads directly to a highly diverse >>>>> pattern. >>>>> >>>>> The last sentence of the abstract reads: "This molecular >>>>> complexity, which provides hints on heteroatoms >>>>> chronological assembly, suggests that the extraterrestrial >>>>> chemodiversity is high compared to terrestrial relevant >>>>> biological- and biogeochemical-driven chemical space." The >>>>> high level of extraterrestrial chemodiversity vs. the less >>>>> diverse terrestrial "chemical space" - could that mean that >>>>> development of life could depend on a kind of reduction of >>>>> diversity? Caused by selection (= "targetting"?)? Life would >>>>> be essentially linked to a process of picking up elements >>>>> out of the construction kit? But than it begins to play by >>>>> combining them? Wouldn't that point to the necessity to make >>>>> a strong distinction between diversity and complexity? Could >>>>> that mean that the complexity of terrestrial biological and >>>>> biochemical "space" is a result of reduction of (initial) >>>>> diversity? >>>>> >>>>> Perhaps six (crazy) questions too much from a non-natural >>>>> scientist ... >>>>> >>>>> Best regards, >>>>> >>>>> Matthias B. >>>>> >>>>> >>>>> ----- Original Message ----- From: <Zelimir.Gabelica at uha.fr> >>>>> To: <meteorite-list at meteoritecentral.com> >>>>> Sent: Tuesday, February 16, 2010 9:58 PM >>>>> Subject: [meteorite-list] organics in Muchison..... >>>>> >>>>> >>>>> >>>>> Darren, list, >>>>> >>>>> >>>>> The media info Darren is speaking about refers to the >>>>> research we (a >>>>> group of scientists) are being conducting since several >>>>> months on >>>>> Murchison, namely a non targeted analysis of its >>>>> extraterrestrial >>>>> organic contents. >>>>> >>>>> In a post I sent by end of last September, I had notified >>>>> the list of >>>>> that work by just mentioning the keywords "Murchison" and >>>>> "organic >>>>> contant". >>>>> >>>>> The paper, that was submitted for publication in due time >>>>> (right in >>>>> time for the 40th anniversary of Murchison fall), was just >>>>> anounced >>>>> released out of press a couple of hours ago. >>>>> >>>>> Here is the reference: PNAS, 107 (7), 2763 -2768 (2010). >>>>> >>>>> Abstract can be read here: >>>>> >>>>> http://www.pnas.org/content/107/7/2763 >>>>> >>>>> >>>>> More discussions are available through various media press >>>>> comments >>>>> (easily found by Googling with keys: "Murchison, Phillippe >>>>> Schmitt-Kopplin"). >>>>> >>>>> May I just insist that the incredible number of molecules >>>>> we had found >>>>> originated from the fact that the screening was not >>>>> targeted. >>>>> >>>>> Also we never claimed that any of the hundreds of thousands >>>>> of >>>>> molecules we detected had a pre-biotic origin, something >>>>> that seems to >>>>> provoke debate in the media. >>>>> Our work just shows there's no shortage of molecules on >>>>> meteorites in >>>>> general, and in Murchison, taken as reference in >>>>> particular, that >>>>> origin-of-life researchers could investigate... >>>>> >>>>> Those familtar with Ensisheim shows might remember that >>>>> Philippe >>>>> (Phil) was our new enthroned Ensisheim meteorite guardian >>>>> in 2008. >>>>> >>>>> Phil is the head of the lab in Neuherberg (Munich) where >>>>> all the >>>>> measurements (combined FTICR-MS,NMR & GC) were run. >>>>> We all, co-authors, are deeply indebted to him for his >>>>> discern and >>>>> faith in initiating that challenging research and for his >>>>> expertise >>>>> that caused its success beyond any of our initial >>>>> expectations. >>>>> >>>>> So far we have recorded tons of other data on "many more" >>>>> other >>>>> meteorites. More exciting and weird results are coming >>>>> continuously; >>>>> thay will be published in the months to come. >>>>> >>>>> My best wishes, >>>>> >>>>> Zelimir >>>>> >>>>> >>>>> Shawn Alan <photophlow at yahoo.com> >>>>> a ??crit? : >>>>> >>>>>> Darren and List >>>>>> >>>>>> Thank you for the read up on Murchison meteorite on >>>>> how scientist ?have identified over 14,000 compounds >>>>> and counting. While we are on ?the topic of Murchison >>>>> meteorite, I came across an article on line ?that >>>>> points out these interesting facts and finds on the >>>>> Murchison ?as quoted from the article as follows.... >>>>>> "Presolar grains are the oldest materials in the solar >>>>> system," says Philipp Heck of the University of Chicago. >>>>>> "The ages of the grains clearly indicate that they are >>>>> older than ?the solar system." >>>>>> But just how old? >>>>>> Heck and his colleagues isolated 22 grains from the >>>>> Murchison ?meteorite, which is well-known for the >>>>>> organic material it contains, and measured how long >>>>> the grains spent ?in interstellar space before winding >>>>> up >>>>>> in our nascent solar system. The implied grain ages, >>>>> reported in a ?recent paper of the Astrophysical >>>>> Journal, >>>>>> appear to support a hypothesis that our solar system >>>>> formed after a smaller satellite galaxy crashed into the >>>>>> Milky Way around 6 billion years ago."...... >>>>>> >>>>>> "From the isotope abundances, the researchers estimate >>>>> that the ?majority of grains spent between 3 >>>>>> and 200 million years in interstellar space before >>>>> falling into our molecular cloud some 4.6 billion >>>>>> years ago." >>>>>> >>>>>> >>>>>> Here is the link to the article I found on line. >>>>>> http://www.astrobio.net/pdffiles/news_3202.pdf >>>>>> >>>>>> and if your up for a read, here is an article on the >>>>> age of presolar ?SiC grains found in Murchison >>>>> meteorite. >>>>>> >>>>>> http://presolar.wustl.edu/ref/Gyngard09b.pdf >>>>>> >>>>>> Enjoy >>>>>> Shawn Alan >>>>>> >>>>>> >>>>>> >>>>>> [meteorite-list] Murchison-- chock full o' stuffDarren >>>>> Garrison ?cynapse at charter.net >>>>>> Tue Feb 16 00:25:30 EST 2010 >>>>>> >>>>>> >>>>>> Previous message: [meteorite-list] West Texas >>>>> Meteorite Hunt - ?February 15, 2009 >>>>>> Next message: [meteorite-list] West Texas Meteorite >>>>> Hunt - February 15, 2009 >>>>>> Messages sorted by: [ date ] [ thread ] [ subject ] [ >>>>> author ] >>>>>> >>>>>> http://news.discovery.com/space/meteorite-crammed-with-millions-of-organic-compounds.html >>>>>> >>>>>> Meteorite Crammed with 'Millions' of Organic >>>>> Compounds >>>>>> >>>>>> By Ian O'Neill | Mon Feb 15, 2010 04:52 PM ET >>>>>> >>>>>> A meteorite that hit the town of Murchison, Australia, >>>>> hasn't quit ?giving up its >>>>>> secrets. >>>>>> >>>>>> The Murchison meteorite is one of the most studied >>>>> space rocks because many >>>>>> pieces were recovered after it was seen breaking up as >>>>> it fell through the >>>>>> atmosphere in 1969. Approximately 100 kg of the >>>>> carbonaceous chondrite was >>>>>> recovered. >>>>>> >>>>>> Carbonaceous chondrites are extremely important to >>>>> scientists as they were >>>>>> formed from material that existed in the solar >>>>> system's ?planet-forming disk of >>>>>> gas and dust. They are, quite literally, time capsules >>>>> holding onto ?a 4 billion >>>>>> year old record of the birth of our solar system. >>>>>> >>>>>> In this case, the Murchison meteorite has given us >>>>> another clue as to the >>>>>> abundance of organic chemicals that existed before the >>>>> Earth had formed. In >>>>>> fact, this particular meteorite may have originated >>>>> from material ?older than our >>>>>> sun. >>>>>> >>>>>> "We are really excited. When I first studied it and >>>>> saw the ?complexity I was so >>>>>> amazed," said Dr Phillipe Schmitt-Kopplin, of the >>>>> Institute for Ecological >>>>>> Chemistry in Neuherberg, Germany. >>>>>> >>>>>> "Meteorites are like some kind of fossil. When you try >>>>> to understand them you >>>>>> are looking back in time." >>>>>> >>>>>> This new research made use of high resolution >>>>> spectroscopic tools to identify >>>>>> the various compounds inside. Although this meteorite >>>>> has provided scientists >>>>>> with vast amounts of information about specific >>>>> carbon-based organics before, >>>>>> this was the first non-targeted study. In other words, >>>>> the ?researchers weren't >>>>>> tracking down just one type of chemical, they did a >>>>> broad analysis ?for all the >>>>>> chemicals it might contain. >>>>>> >>>>>> And what they found came as a shock, it appears that >>>>> the primordial ?solar system >>>>>> probably had a higher chemical diversity than >>>>> present-day Earth. >>>>>> >>>>>> In this study, 14,000 specific compounds including 70 >>>>> amino acids were >>>>>> identified. But this number appears to be the tip of >>>>> the iceberg; ?the meteorite >>>>>> probably contains millions of different organic >>>>> compounds. More detailed >>>>>> analysis will now be carried out. >>>>>> >>>>>> But why is this important? To understand the diversity >>>>> of organic chemicals that >>>>>> were floating around a primordial solar system will >>>>> help us ?understand how life >>>>>> may have appeared on Earth. This particular chunk of >>>>> carbonaceous chondrite >>>>>> drifted through the gas and dust of the early solar >>>>> system, ?collecting all the >>>>>> basic organic chemistry from around that time, does >>>>> that mean diverse organic >>>>>> chemistry is the "norm" for proto-planetary star >>>>> systems? >>>>>> >>>>>> These organic compounds are known to exist on comets, >>>>> asteroids and other >>>>>> planetary bodies, so what makes Earth the hothouse of >>>>> life when everywhere else >>>>>> seems to be lifeless? >>>>>> >>>>>> If organic chemistry is ubiquitous, perhaps planning >>>>> to "seed" young star >>>>>> systems with Earth-based life isn't such a good idea. >>>>> The conditions for life >>>>>> may not be that rare after all. >>>>>> >>>>>> ______________________________________________ >>>>>> Visit the Archives at >>>>>> http://www.meteoritecentral.com/mailing-list-archives.html >>>>>> Meteorite-list mailing list >>>>>> Meteorite-list at 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 at 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 at 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 at 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 at 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 at meteoritecentral.com >> http://six.pairlist.net/mailman/listinfo/meteorite-list >> > > > -- > ------------------------------------------------------------ > Mike Gilmer > http://www.galactic-stone.com > http://www.facebook.com/galacticstone > ------------------------------------------------------------ > ______________________________________________ > Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html > Meteorite-list mailing list > Meteorite-list at meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > Received on Tue 16 Feb 2010 10:50:37 PM PST |
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