Re: [meteorite-list] Park Forest strewnfield map
Hi again, Please excuse the PK typo. I meant Park Forest strewnfield. I must have had LP mud on my mind. Sincerely, Bill Kieskowski > Hi all, > > I understand that since last March a number of people have been working on a > definitive map of the PK srewnfield. Can anyone direct me to a source? > > Thanks, > Bill Kieskowski > > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Norwegian Meteorites
Does anyone know what the rules governing the exportation of meteorites from Norway? Thanks, Fred Olsen, Denver __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Planet definition
Hi Rosemary and List, > I have always considered if it had an orbit around a star it was > called a planet. While your definition is succinct, it fails in four cases: asteroids, comets, dust and man-made satellites. (I won't muddy things further with multiple-star systems). All of these objects orbit our star, so you see size has to be part of the definition. If it weren't for all the other plutinos that have been discovered, I would be happy to call Pluto a planet. Likewise, if Ceres were the only asteroid, I would promote it to planetary status. Instead, Ceres and Pluto are simply the largest examples of their respective types. By choosing the requirement that a planet have a greater mass than the sum of all other bodies in a similar orbit, you avoid ambiguity over the minor planets, and in particular the Trojan asteroids of Mars and Jupiter). The definition correctly handles all the planetary satellites as well, without the necessity of addressing the bodies they orbit. The only problem case I can imagine is if two nearly equally sized bodies were orbiting the sun in nearly the same orbit. But for the most part I think this is a non-problem, since two moderately- sized planetoids cannot ordinarily coexist in a similar orbit, unless they are orbiting each other (double-planet). Not sure what happens if you put another earth 60 degrees ahead of or behind earth in the same orbit (Lagrange points). There's probably a mass limit on the second earth, beyond which L4 and L5 are no longer stable. --Rob __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Pluto - Part 2 of 2
Sharky. Whatever floats your boat. Rosie - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] ; [EMAIL PROTECTED] Sent: Tuesday, March 16, 2004 8:20 PM Subject: Re: [meteorite-list] Pluto - Part 2 of 2 [EMAIL PROTECTED] writes: if it had an orbit around a star it was called aplanet. If it orbited anything else, like a planet, I would consider it amoon. But by that definition (as opposed to a size/mass-based definition), wouldn't a comet also be considered a planet? GregoryJ. Gregory Wilson2118 Wilshire Blvd. #918Santa Monica, CA 90403
[meteorite-list] Pluto a Planet: A POem
I am really asking for it, but here goes: PLUTO TO EARTH "Have you heard the news from Earth?" Asked the Plutonians (For all it's worth Although they were used to the cryogenic A little heat was loved; and made them phrenetic Increasing their thoughts; yea, near perihelion Their best of sages could count to a billion.) "The scoundrels on that blue dot near the Sun Count eight planets now, and we're not one!" Another Plutonian retorted, "It must be the glare, Of the Sun that maddens them. It's not fair! To pronounce this judgement is mere sophistry When I doubt they even know our geography." "And what of our atmosphere, whose pressure is felt, Is that like an asteroid of the Kuiper Belt?" "And our moon," said another,"Who's tidally locked; If we're not a planet, whys not Mercury defrocked?" "In lieu of this," cried another, "Let the planets begin With Jupiter; and those rocks further in Are the Sun's satellites; to be pedantic The Earth's a double moon--how's that for semantic!?" Yet one more Plutonian, of a psychological bent Said, "Consider where Earth's spacecraft were sent. To all orbs but ours. But in their spacefaring nations The rulers defunded planetary explorations. So like Aesop's fable, 'The Grapes and the Fox' What man cannot conquer, he demotes and mocks!" And so the wise subzero Plutonians agreed Their lower status was from a cold human need To conquer all; failing that, what is left Is from what is worthy to conquer cleft. No doubt if Pluto had an American probe Visiting; each Congressional ear lobe Would be told the expensive spacecraft hurled To a major planet, not some trivial world. Said one more Plutonian, twice as cynical, "Thus even planetology has gotten political." Francis __ Do you Yahoo!? Yahoo! Mail - More reliable, more storage, less spam http://mail.yahoo.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Worden Micromount On Ebay
Good Evening List, I just finished listing an auction on Ebay for a very nice 1.4g part-slice of the Worden (MI) garage/ car smasher. Please take a look if you want a piece of this awesome meteorite for your collection. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2232831654&category=3239&sspagename=STRK%3AMESSE%3AIT&rd=1 Thank you and G'nite! -Ryan __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Pluto - Part 2 of 2
[EMAIL PROTECTED] writes: if it had an orbit around a star it was called aplanet. If it orbited anything else, like a planet, I would consider it amoon. But by that definition (as opposed to a size/mass-based definition), wouldn't a comet also be considered a planet? GregoryJ. Gregory Wilson2118 Wilshire Blvd. #918Santa Monica, CA 90403
Re: [meteorite-list] Pluto - Part 2 of 2
I have always considered if it had an orbit around a star it was called a planet. If it orbited anything else, like a planet, I would consider it a moon. Not that I am an expert.. but it seems to be it would depend on the body it orbited. Satellite of a star = planet Satellite of planet or other body = moon Even the asteroid belt is considered the remnants of a planet either that did not form or exploded. My 2 cents worth. Rosie - Original Message - From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, March 16, 2004 10:43 AM Subject: [meteorite-list] Pluto - Part 2 of 2 > Sky & Telescope, March 1990, pp. 295-296: > A Far Out Planet, George Lovi, excerpt: > > Finally, a rather interesting astronomical issue has surfaced as to whether > Pluto should legitimately be included in the roster of nine major planets. Its > decidedly small size (some 2,280 km across) makes it considerably smaller > than any other planet, even smaller than several planetary satellites (including > our own Moon). It also has a most unplanetary, asteroid-like orbit. > > For sometime people have suggested that Pluto is an escaped satellite of > Neptune, one resembling Triton. Others have proposed that Pluto might be > some sort of condensed clumping of icy cometary nuclei, or the material that > makes up these bodies. > > It's really too bad that we cannot look forward anytime soon to a probe answering > some of our questions about this "neither fish nor fowl" planet - or whatever it happens > to be. > > > CRUIKSHANK D.P. (1999) Pluto and Charon edited by S. Alan > Stern and David Tholen (MAPS 34-4, 1999, 682, excerpt): > > While this book is at least a wonderful compilation of our best understanding of Pluto and > Charon, it also represents a window on the other small bodies of the outer solar system, > notably Triton, a few other outer planet satellites, and the newly revealed population of icy > bodies constituting the Kuiper Disk. > > Many Kuiper Disk objects share Pluto's orbital resonance with Neptune; vastly more lie > beyond Pluto and form a distribution that may extend to 200 AU or more. Indeed, Pluto > and Charon appear to be only the largest known representatives of this new-found > component of the solar system. Although the exploration of the Kuiper Disk is in its > infancy, this book about the properties of Pluto and Charon in its broader context helps > to establish the importance of primitive icy bodies and is a kind of guidebook toward the > understanding of their physical properties. > > This excellent book is a credit to the Arizona series, to its editors, and to the chapter authors. > I recommended it to investigators in the field, advanced students, and science libraries without > reservation. (D.P. Cruikshank) > > > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list > __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - A few meteorites for sale
Hello all - I just got done taking a few pictures for some eBay auctions and thought I would make them available to the list first. Some nice unclassified chondrites $0.35 per gram http://makeashorterlink.com/?X4AE25EB7 and some complete LL3 slices $4.00 per gram http://makeashorterlink.com/?O2CE12EB7 Give the links a moment to find the site, Yahoo loves to make URL's that are two full lines across. Feel free to browse the other photos, including the riker mount frames, ready to download and snazz up your micros. Payment can be made via PayPal to: [EMAIL PROTECTED] or mail to: Robert Wesel 2941 N.E. 1st Court Hillsboro, Oregon 97124 USA Rob Wesel -- We are the music makers... and we are the dreamers of the dreams. Willy Wonka, 1971 __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Park Forest Impacts
I just talked to a guy who hunts PF with me and we both agree that all the ground impacts that were found by us were on an angle from the north to the south. The biggest one found was 1.2 Kilo and the angle of impact was consistent with the others. Does anyone have any knowlege of other ground impact finds? and if they also impacted the soil on an angle , coming in from the north. This is consistent with the winslow street impact also. It hit the street and sprayed the houses on the south side of the street Thanks Bob Evans
Re: [meteorite-list] Interesting asteroid names
> > Ron & all, > > I would have to add Sudbury to the list. Done! 7610 Sudbury Ron B. __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Interesting asteroid names
Ron & all, I would have to add Sudbury to the list. This event, involving a gigantic nine kilometer diameter rock traveling at 30 kilometers per second, slamming into the earth with an impact force equivalent to the detonation of several billion tons of TNT! Be ready, if that sized impactor ever hits again, we may be doomed! I'm sure we all hope someone is watching our collective human asses. Roman - Original Message - From: "Ron Baalke" <[EMAIL PROTECTED]> To: "Meteorite Mailing List" <[EMAIL PROTECTED]> Sent: Tuesday, March 16, 2004 3:57 PM Subject: [meteorite-list] Interesting asteroid names > Here are some interesting asteroid names: > > 1691 Oort > 1776 Kuiper > 2224 Tucson > 2404 Antarctica > 2421 Nininger > 2606 Odessa > 3581 Alvarez > 3693 Barringer > 5071 Shoemaker > 5471 Tunguska > 10799 Yucatan > 18725 Atacama > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list > __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] New LL3.7 meteorite
http://www.meteoriteguy.com/nwa3126.htm Hi everyone, I have just listed a beautiful new meteorite. I have had it in UCLA for the last two years, I just got the classification data, so it is now up for sale. This is a very nice but weathered LL3.7, lots of multi-colored chondrules. Check it out even if not buying just to see a very nice new meteorite. Mike Farmer I only have small pieces as it was fractured and would not cut well.
Re: [meteorite-list] Mesosiderite types
Rob, A full description is in: Reviews in Mineralogy Volume 36 Planetary Materials, J.J. Papike, editor Publisher: Mineralogical Society of America, 1998 "The mesosiderites are divided into three petrologic groups based on the orthopyroxene content (Hewins 1984, 1988: see Fig. 53). Compositional class A mesosiderite silicates are relatively basaltic in composition, containing more plagioclase and clinopyroxene. The compositional class B mesosiderite silicates contain a greater proportion of orthopyroxene, and are therefore more ultramafic. A unique mesosiderite from Antarctica, RKPA79015, contains almost exclusively orthopyroxene as its silicate phase (Prinz et al. 1982a), and is the sole member of compositional class C (Hewins 1988)." ect(pg 4-143) This is from 1998, and at least one more C type has come out of Morocco so the definition of class C might be better refined, ect. Devin Schrader - Original Message - From: "Rob Wesel" <[EMAIL PROTECTED]> To: "Meteorite List" <[EMAIL PROTECTED]> Sent: Tuesday, March 16, 2004 3:40 PM Subject: [meteorite-list] Mesosiderite types > Hello all- > Can anyone out there point me in the right direction as to the differences > between type A, B, and C mesosiderites...and what those differences mean? > Thanks in advance, > > Rob Wesel > -- > We are the music makers... > and we are the dreamers of the dreams. > Willy Wonka, 1971 > > > > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Park Forest strewnfield map
Hi all, I understand that since last March a number of people have been working on a definitive map of the PK srewnfield. Can anyone direct me to a source? Thanks, Bill Kieskowski __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Mesosiderite types
Hello all- Can anyone out there point me in the right direction as to the differences between type A, B, and C mesosiderites...and what those differences mean? Thanks in advance, Rob Wesel -- We are the music makers... and we are the dreamers of the dreams. Willy Wonka, 1971 __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Interesting asteroid names
As a finn I have to add Rosettas first planned target, 46P/Wirtanen, which is named after Carl A. Wirtanen, whos parents was from Finland; http://www.eso.org/outreach/press-rel/pr-1999/phot-27-99.html the final target is 67P/Churyumov-Gerasimenko, but a good try anyway...;- http://www.universetoday.com/am/publish/rosetta_asteroid_targets_decided.html?1132004 best, pekka s Ron Baalke wrote: Here are some interesting asteroid names: 1691 Oort 1776 Kuiper 2224 Tucson 2404 Antarctica 2421 Nininger 2606 Odessa 3581 Alvarez 3693 Barringer 5071 Shoemaker 5471 Tunguska 10799 Yucatan 18725 Atacama __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list -- Pekka Savolainen Jokiharjuntie 4 FIN-71330 Rasala FINLAND + 358 400 818 912 Group Home Page: http://www.smartgroups.com/groups/eurocoin Group Email Address: [EMAIL PROTECTED] __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Color Image of Bonneville Crater
Take a look at this full-resolution color image of Bonneville crater: http://marsrovers.jpl.nasa.gov/gallery/press/spirit/20040315a.html Download the highest-resolution image (26.4 MB). You can see the heat shield rather clearly on the far rim of the crater. Also, look closely at the rocks in the foreground close to the rover. I could swear, it looks like some of the rocks have fusion crust. Ron Baalke __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Interesting asteroid names
Here are some interesting asteroid names: 1691 Oort 1776 Kuiper 2224 Tucson 2404 Antarctica 2421 Nininger 2606 Odessa 3581 Alvarez 3693 Barringer 5071 Shoemaker 5471 Tunguska 10799 Yucatan 18725 Atacama __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Most Distant Object In Solar System Discovered
MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011 http://www.jpl.nasa.gov Jane Platt (818) 354-0880 Jet Propulsion Laboratory, Pasadena, Calif. Donald Savage/Dwayne Brown (202) 358-1547/1726 NASA Headquarters, Washington NEWS RELEASE: 2004-085 March 15, 2004 Most Distant Object In Solar System Discovered NASA-funded researchers have discovered the most distant object orbiting Earth's Sun. The object is a mysterious planet-like body three times farther from Earth than Pluto. "The Sun appears so small from that distance that you could completely block it out with the head of a pin," said Dr. Mike Brown, California Institute of Technology, Pasadena, Calif., associate professor of planetary astronomy and leader of the research team. The object, called "Sedna" for the Inuit goddess of the ocean, is 13 billion kilometers (8 billion miles) away, in the farthest reaches of the solar system. This is likely the first detection of the long-hypothesized "Oort cloud," a faraway repository of small icy bodies that supplies the comets that streak by Earth. Other notable features of Sedna include its size and reddish color. After Mars, it is the second reddest object in the solar system. It is estimated Sedna is approximately three-fourths the size of Pluto. Sedna is likely the largest object found in the solar system since Pluto was discovered in 1930. Brown, along with Drs. Chad Trujillo of the Gemini Observatory, Hawaii, and David Rabinowitz of Yale University, New Haven, Conn., found the planet-like object, or planetoid, on Nov. 14, 2003. The researchers used the 48-inch Samuel Oschin Telescope at Caltech's Palomar Observatory near San Diego. Within days, telescopes in Chile, Spain, Arizona and Hawaii observed the object. NASA's new Spitzer Space Telescope also looked for it. Sedna is extremely far from the Sun, in the coldest know region of our solar system, where temperatures never rise above minus 240 degrees Celsius (minus 400 degrees Fahrenheit). The planetoid is usually even colder, because it approaches the Sun only briefly during its 10,500-year solar orbit. At its most distant, Sedna is 130 billion kilometers (84 billion miles) from the Sun, which is 900 times Earth's solar distance. Scientists used the fact that even the Spitzer telescope was unable to detect the heat of the extremely distant, cold object to determine it must be less than 1,700 kilometers (about 1,000 miles) in diameter, which is smaller than Pluto. By combining available data, Brown estimated Sedna's size at about halfway between Pluto and Quaoar, the planetoid discovered by the same team in 2002. The elliptical orbit of Sedna is unlike anything previously seen by astronomers. However, it resembles that of objects predicted to lie in the hypothetical Oort cloud. The cloud is thought to explain the existence of certain comets. It is believed to surround the Sun and extend outward halfway to the star closest to the Sun. But Sedna is 10 times closer than the predicted distance of the Oort cloud. Brown said this "inner Oort cloud" may have been formed by gravity from a rogue star near the Sun in the solar system's early days. "The star would have been close enough to be brighter than the full moon, and it would have been visible in the daytime sky for 20,000 years," Brown explained. Worse, it would have dislodged comets farther out in the Oort cloud, leading to an intense comet shower that could have wiped out some or all forms of life that existed on Earth at the time. Rabinowitz said there is indirect evidence that Sedna may have a moon. The researchers hope to check this possibility with NASA's Hubble Space Telescope. Trujillo has begun to examine the object's surface with one of the world's largest optical/infrared telescopes, the 8-meter (26-foot) Frederick C. Gillett Gemini Telescope on Mauna Kea, Hawaii. "We still don't understand what is on the surface of this body. It is nothing like what we would have predicted or what we can explain," he said. Sedna will become closer and brighter over the next 72 years, before it begins its 10,500-year trip to the far reaches of the solar system. "The last time Sedna was this close to the Sun, Earth was just coming out of the last ice age. The next time it comes back, the world might again be a completely different place," Brown said. NASA's Jet Propulsion Laboratory, Pasadena, Calif, manages the Spitzer Space Telescope. For more information about the research and images on the Internet, visit http://www.spitzer.caltech.edu/Media/releases/ssc2004-05/ For information about NASA on the Internet, visit http://www.nasa.gov -end- __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
RE: [meteorite-list] New Solar system planet discovered
Hi Some Sedna info at : http://news.bbc.co.uk/2/hi/science/nature/3511678.stm and http://www.nasa.gov/vision/universe/solarsystem/planet_like_body.html Regards Ken O'Neill -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Rafael B. Torres Sent: 15 March 2004 17:53 To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: [meteorite-list] New Solar system planet discovered Hello List can anyone send more informtion about this new planet found? _ Help STOP SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Amgala versus Zag versus DJERMAIA
Dear list I have identified a new individual of the historic fall Djermaia, 25 feb 1961, Chad. Only 2 meteorites are known from this country. And only one Fall, Djermaia. It is a H xenolitic Gas rich chondrite, in pristine state of conservation. regmaglypts, fusion crust of course and flow lines . The new individual is 2947 g see: www.caillou-noir.com/Djermaia.html I have sliced off a end cut 95 g and showed it at MNHN in Paris where is stored the type Specimen of this fall. Michèle Bourot Denise has examined carfully my end cut and the Djermaia specimen: she is formal about the new individual I have ( for sale ) it is a new Djermaia Fall stone. She asked me to make a declaration with her comments at the Nom Com, what I did today. The Djermaia Fall declared TKW is 1 kg but Bob Haag has a 3.7 kg stone of Djermaia according his catalog. I have left a 2835 g individual for sale. With TKW estimated below 8 kg and prices according what I ready on the list: I may expect offers above $ 7 per gram. If anyone is tented, I will consider them, I am entitled to sell this meteorite by its owner, Michel Husson. Best regards. Michel FRANCO - Original Message - From: "Adam Hupe" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, March 14, 2004 10:11 AM Subject: Re: [meteorite-list] Amgala versus Zag > Hello All, > > At first glance Amgala is somewhat similar looking to Zag. I do not believe > it is going to classify as a regolith breccia but rather a polymict breccia. > Unlike Zag, no type 3 areas have been identified. Two laboratories are > currently studying Amgala and neither one has observed water bearing > minerals although some interesting clasts have been found which we will > report on later. Another party suggested halite because ~10% of the most > recently collected broken stones show some oxidation and this would help to > explain this. This was mentioned to a scientists who felt there maybe some > water bearing halite but none was found thus far. > > As far as the price dropping into the $5.00 to $7.00 a gram range it is very > doubtful because there is less than 12 kilograms TKW, fully which half has > already been sold to collectors for between $7.50 a gram for fragments and > $12.00 a gram for fully crusted specimens. Add the fact the seventh and > final trip to the area by our Moroccan partners only produced five stones > making it less than cost effective to return to the region. The last trip > did not produce enough material to cover the rental rig or diesel costs. > All indications are that this is a very small fall with precious little more > material coming out. After all, nomads avoid this area and soldiers have > been methodically searching it for four months now. Only the soldiers know > which areas are safe and which are not and they are done searching because > of the lack of new finds associated with this fall. > > We incurred communication, transportation, purchase material, sample > material, supplies, shipping and lab fee costs making this a very expensive > undertaking. The fact that 26% of the recovered stones which we paid the > high field price for turned out to be a black chondrite not related to this > fall increased our acquisition costs by nearly the same percentage. Add all > of this together and it was a costly ordeal chasing this one down. > > We will update as lab results come in which promise to be interesting. > > All the best, > > Adam > > > - Original Message - > From: <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Saturday, March 13, 2004 6:23 PM > Subject: [meteorite-list] Amgala versus Zag > > > > Hello All, > > > > Yesterday I received a small individual of Amgala from the Hupes that was > probably an individual broken in half. While most of the piece has a > beautiful black crust, the broken face was quite oxidized, so I decided to > cut that end off today to see the inside. As stated by Mike and Adam, Amgala > is a nice breccia with lots of metal. To me it looks a lot like a fresh > piece of Zag with it's lightened H6 areas in contrast with the darker veined > H4 +/- areas. The darker areas have that same blueish grey look to it as Zag > does with lighter chunks and chondrules mixed in. Is Amgala a water bearing > meteorite too? The metal I've seen in Zag is more homogeneous, while the > piece of Amgala I have has more patches of metal in it, especially in the > lighter H6 like parts. Amgala's crust is little better than the nicer > pieces of Zag I have. > > > > The amazing thing to me is that they fell in the exact same region of > Africa... and look very similar...IMHO. > > > > All in all Amgala is very nice, but I can see this meteorite eventually > falling into the $5 to $7 range like most other falls these days...except > Park Forest that is. The present pricing of $8 to 12/g seems too high to > me...but then again I bought a piece for $10/g while it is still new to us > all. :) > > > > Reporting in on Amgala,
Re: [meteorite-list] OT: Pluto planet/planetoid
Hi Robert, Bernd, Tom and all, Regardless of efforts trying to redefine Pluto's status, it was a Planet by definition for 60 some years. I have little doubt that it is a KB object. I know that Clyde Tombaugh felt it should remain in a planetary status, grand fathered in. I think it would be respectful to keep it that way but name new found objects as KB's from here on out. Sort of a contradiction but how a lot of people feel. Clyde mentioned to me one time (and it is in his book I think) that because of world war II a percentage of the sky was not surveyed like they had hoped to and even though those areas of sky were away from the planetary plane there could certainly be lurking an undiscovered planet. Initially when the size of Pluto was measured it was thought to be smaller than 4,000 miles or about 6,300 km across. Perhaps Pluto's moon Charon played a part in this. When Charon was discovered some different models were applied and a smaller diameter computed. I believe the measurements of Pluto were done at the Hale Telescope (Mt. Polarmar Observatory) by Gerald Kuiper ironically. --AL Mitterling __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: AW: [meteorite-list] Amgala, Tsarev and Zag
Joern, Thanx for the clarification on regolith versus the basic breccia types. As far as chondrites go...is a genomict breccia with a regolith history like Zag more or less unusual when compared to a polymict breccia for chondrites, as in the supposed case for Amgala? I ask this since you did point out that achondrites are the ones that usually have the polymict breccias, and not chondrites. Does this make NWA 1955 (H/L 3-4) a polymict breccia also? Or does its classification as being unequilibrated chondrite make it different than a breccia per say? John > Tsarev noble gas data data: > > he_3 he_4ne_20 ne_21 ne_22 ar_36 ar_38 ar_40 > 1,58 121 0,540,540,600,420,11575 > 2,07 108 0,780,820,880,830,201635 > all values: x 10E-8 cc STP/g > > Reference: Herzog G. F., Vogt S., Albrecht A., Xue S., Fink D., Klein J., > Middleton R., Weber H. W. and Schultz L. (1997) Complex exposure histories for > meteorites with "short" exposure ages. Meteoritics 32, 413-422. > > According to this, Tsarev isn't a regolith breccia. > > BTW: A regolith breccia can be either polymict (different source types of > clasts, e.g., H3 + L6), xenolithic (some minor exotic (non-host type) clasts, > e.g. CM clasts in L6 host), genomict (same material type but different > petrologic grades, e.g. H3 + H5), or monomict (e.g. light H3 + dark H3 > (irradiated) lithologies). Usually, regolith breccias are monomict or genomict > breccias. Achondrites are often polymict breccias (e.g. howardites, eucrites, > diogenits, ureilites, lunaites). > > Regards, > Joern > > ___ > Joern Koblitz > MetBase Editor > The MetBase Library of Meteoritics and Planetary Sciences > Benquestrasse 27 > D-28209 Bremen, Germany > phone: +49 421 24 100 24 > fax: +49 421 24 100 99 > email: [EMAIL PROTECTED] > ___ > > > > > -Ursprüngliche Nachricht- > > Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > > Gesendet: Montag, 15. März 2004 21:20 > > An: [EMAIL PROTECTED] > > Betreff: [meteorite-list] Amgala, Tsarev and Zag > > > > > > Adam wrote: > > > > > I do not believe it is going to classify as a > > > regolith breccia but rather a polymict breccia. > > > > Adam also wrote: > > > > > I thought one distinction made for a regolith breccia is that > > > there are signs of crystal damage caused by the solar wind > > > > Martin A. chirped: > > > > > Tsarev which is brecciated but not polymict > > > is also altered by solar winds, isn't it? > > > > Hello Adam, Martin, and List, > > > > There are 3 types of inert and/or noble gases in some meteorites: > > > > (1) those produced by cosmic ray bombardment (cosmogenic); > > (2) those resulting from radioactive decay of elements (radiogenic) > > in the meteorite; > > (3) those present originally (= trapped or primordial gases). > > > > No. (3) is what we are interested in to find out if Amgala, Tsarev > > and Zag have or have not been altered by solar wind particles. > > > > These gases are 4^He, 20^Ne, 36^Ar, 84^Kr, 132^Xe. > > > > There are two different sources for these inert/noble gases: > > > > (a) solar-type gas > > (b) planetary-type gas > > > > To find out "what is what" and "which is which", meteoriticists > > consider the relative amounts and, above all, ratios of a number > > of isotopes. > > > > J.T. Wasson proposed the following arbitrary > > definition of a solar gas-rich meteorite: > > > > - The 20^Ne/22^Ne ratio should be greater than 2.5 > > - Ne isotopic data should plot above the dashed line > > you find on p. 102 and on p. 111 of Wasson's and > > Sears' books (see: Reference) > > - The 4^He content should exceed 2 x 10^-5 cm^3 g^-1 > > - The 20^Ne / 36^Ar ratio should be greater than 0.3 > > > > Unfortunately, I don't have any of these isotope data handy for > > Tsarev :-( What I do have are some 3^He and 21^Ne data from > > the MPI Mainz but they are of little help at the moment). > > > > There is an abstract paper by Honda et al. but they only discuss > > cosmogenic nuclides (see: Reference) - again of little help. > > > > Anyway, Tsarev is a special case and as such mentioned in a > > research article by S.K. Vogt et al. The authors group Tsarev > > with a number of other H and L chondrites that underwent a > > complex "two-stage exposure history": > > > > t1 = 8 million years, radius ca. 200 cm > > t2 = ca. 0.3 million years, radius ca. 140 cm > > > > > > Best wishes, > > > > Bernd > > > > > > References: > > > > VOGT S.K. et al. (1993) On the Bur Ghelulai H5 chondrite and other > > meteorites with complex exposure histories (Meteoritics 28, > > 1993, 71-85). > > > > HONDA M. et al. (1992) Cosmogenic nuclides in the > > Tsarev chondrite (Meteoritics 27-3, 1992, 234-235). > > > > WASSON J.T. (1974) Meteorites Classification
[meteorite-list] OT: Pluto planet/planetoid
My 2 cents on the Pluto planet/planetoid debate: There is one commonality shared by Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune -- and NO other known solar system bodies. They each represent more than 50% of the total mass of all other bodies in a similar orbit. Note that Ceres would not be part of this group -- it is not more massive than the sum of all other asteroids in a similar orbit. Pluto, likewise, would not meet this requirement -- like Ceres, it is the largest body in its type of orbit, but the sum of the masses of all other bodies in similar orbits exceeds that of Pluto. The nice thing about this definition is that it is simple and unambiguous. --Rob
[meteorite-list] Ebay auctions ending tonight.
http://members.ebay.com/ws2/eBayISAPI.dll?ViewUserPage&userid=meteoritehunters http://members.ebay.com/ws2/eBayISAPI.dll?ViewUserPage&userid=meteorite-hunter I have alot of meteorite auctions ending tonight. Some nice pieces up for grabs. Mike Farmer
[meteorite-list] NP, 11-1936 University of Texas collecting Texas meteorites
Paper: Monessen Daily Independent City: Monessen, Pennsylvania Date: Wednesday, November 18, 1936 Page: 5 Records in Texas Show Fall of 38 Meteorites Austin, Texas. - Stars have fallen on Alabama, but meteorites are known to have fallen 38 times on Texas. Dr. H. B. Stenzel, supervisor of the division of geology of the museum, being established by the University of Texas, is gathering samples of the meteorite falls for permanent display. Twelve already are in possession of the university. Three more have been left for display purposes. The largest, lent for centennial display, weighs more than 200 pounds. It was found in 1850 in an Indian reservation on the upper Brazos river. A depression near Odessa, Texas is believed by scientists to have been caused by the largest meteor to strike within the state. Please visit, www.MeteoriteArticles.com, a free on-line archive of meteor and meteorite articles.
AW: [meteorite-list] Amgala, Tsarev and Zag
Tsarev noble gas data data: he_3he_4ne_20 ne_21 ne_22 ar_36 ar_38 ar_40 1,58121 0,540,540,600,420,11575 2,07108 0,780,820,880,830,201635 all values: x 10E-8 cc STP/g Reference: Herzog G. F., Vogt S., Albrecht A., Xue S., Fink D., Klein J., Middleton R., Weber H. W. and Schultz L. (1997) Complex exposure histories for meteorites with "short" exposure ages. Meteoritics 32, 413-422. According to this, Tsarev isn't a regolith breccia. BTW: A regolith breccia can be either polymict (different source types of clasts, e.g., H3 + L6), xenolithic (some minor exotic (non-host type) clasts, e.g. CM clasts in L6 host), genomict (same material type but different petrologic grades, e.g. H3 + H5), or monomict (e.g. light H3 + dark H3 (irradiated) lithologies). Usually, regolith breccias are monomict or genomict breccias. Achondrites are often polymict breccias (e.g. howardites, eucrites, diogenits, ureilites, lunaites). Regards, Joern ___ Joern Koblitz MetBase Editor The MetBase Library of Meteoritics and Planetary Sciences Benquestrasse 27 D-28209 Bremen, Germany phone: +49 421 24 100 24 fax: +49 421 24 100 99 email: [EMAIL PROTECTED] ___ > -Ursprüngliche Nachricht- > Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Gesendet: Montag, 15. März 2004 21:20 > An: [EMAIL PROTECTED] > Betreff: [meteorite-list] Amgala, Tsarev and Zag > > > Adam wrote: > > > I do not believe it is going to classify as a > > regolith breccia but rather a polymict breccia. > > Adam also wrote: > > > I thought one distinction made for a regolith breccia is that > > there are signs of crystal damage caused by the solar wind > > Martin A. chirped: > > > Tsarev which is brecciated but not polymict > > is also altered by solar winds, isn't it? > > Hello Adam, Martin, and List, > > There are 3 types of inert and/or noble gases in some meteorites: > > (1) those produced by cosmic ray bombardment (cosmogenic); > (2) those resulting from radioactive decay of elements (radiogenic) > in the meteorite; > (3) those present originally (= trapped or primordial gases). > > No. (3) is what we are interested in to find out if Amgala, Tsarev > and Zag have or have not been altered by solar wind particles. > > These gases are 4^He, 20^Ne, 36^Ar, 84^Kr, 132^Xe. > > There are two different sources for these inert/noble gases: > > (a) solar-type gas > (b) planetary-type gas > > To find out "what is what" and "which is which", meteoriticists > consider the relative amounts and, above all, ratios of a number > of isotopes. > > J.T. Wasson proposed the following arbitrary > definition of a solar gas-rich meteorite: > > - The 20^Ne/22^Ne ratio should be greater than 2.5 > - Ne isotopic data should plot above the dashed line > you find on p. 102 and on p. 111 of Wasson's and > Sears' books (see: Reference) > - The 4^He content should exceed 2 x 10^-5 cm^3 g^-1 > - The 20^Ne / 36^Ar ratio should be greater than 0.3 > > Unfortunately, I don't have any of these isotope data handy for > Tsarev :-( What I do have are some 3^He and 21^Ne data from > the MPI Mainz but they are of little help at the moment). > > There is an abstract paper by Honda et al. but they only discuss > cosmogenic nuclides (see: Reference) - again of little help. > > Anyway, Tsarev is a special case and as such mentioned in a > research article by S.K. Vogt et al. The authors group Tsarev > with a number of other H and L chondrites that underwent a > complex "two-stage exposure history": > > t1 = 8 million years, radius ca. 200 cm > t2 = ca. 0.3 million years, radius ca. 140 cm > > > Best wishes, > > Bernd > > > References: > > VOGT S.K. et al. (1993) On the Bur Ghelulai H5 chondrite and other > meteorites with complex exposure histories (Meteoritics 28, > 1993, 71-85). > > HONDA M. et al. (1992) Cosmogenic nuclides in the > Tsarev chondrite (Meteoritics 27-3, 1992, 234-235). > > WASSON J.T. (1974) Meteorites Classification and Properties > (Springer-Verlag, Berlin, Heidelberg, New York, pp. 97-109). > > SEARS D.W. (1978) The Nature and Origin of > Meteorites (Adam Hilger Ltd. Bristol, pp. 110-115). > > McSWEEN H.Y. (1999) Meteorites and Their Parent Planets > (Cambridge University Press, Glossary, pp. 41-44, 111-112, 244-248). > > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list > __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Bring the Paragould Meteorite home
http://www.paragoulddailypress.com/articles/2004/03/15/news/news01.txt Residents attempting to bring the 'Paragould Meteorite' home PARAGOULD -- If the efforts of the community are successful, Paragould could once again be home to the phenomenal 800-pound "Paragould Meteorite." Larry Hancock, a lifelong resident of Paragould, recently became interested in bringing the cosmic artifact back to northeast Arkansas. The meteorite, which crashed a few miles southwest of Finch at 4:08 a.m. on Feb. 17, 1930, is the third largest meteorite ever discovered. W.H. Hodges, a farmer, discovered the meteorite in a hole that measured 8-feet deep. After its discovery, meteorite collector Harvey Nininger purchased the meteorite before selling it for profit to the Field Museum of Natural History in Chicago. Today, the meteorite resides at the University of Arkansas in Fayetteville, where it is being kept on loan from the Field Museum. Hancock stated he has contacted both UA faculty member Dr. Derek Sears --who has been instrumental in the displaying of the meteorite at UA-- and Meenakshi Wadhwa, Field Museum meteorite curator, about the possibility of bringing the Paragould Meteorite home for public display. However, the current dilemma resides in the fact that, according to Hancock, UA officials have not been in violation of the loan requirements, and therefore, will remain in possession of the meteorite until the Field Museum determines them to be unsuitable keepers of the relic. According to Hancock, Sears has not been willing to relinquish possession of the meteorite, which is being used for scientific purposes at UA. "If God would've wanted that thing in Fayetteville, he would've landed it there," Hancock said. With support from the public, Hancock believes that the Paragould Meteorite could be brought back to northeast Arkansas. Paragould Mayor Mike Gaskill stated that he supports the effort, but also added that Paragould needs a place to house the meteorite during its displaying in northeast Arkansas. "The problem is, we don't have anywhere to put it," Gaskill said. Main Street Paragould Director Sherry Cunningham expressed much of the same sentiment. "I believe that this is where it belongs," Cunningham said. "But my question is 'where do you store it?'" According to Cunningham, the Greene County Historical Preservation Society is currently looking into the possibility of finding a home for a Greene County/Paragould Museum. Cunningham also added that such an attraction would be a great opportunity for Greene County and the state, as the Crowley's Ridge Scenic Byway -- Arkansas' only national scenic byway -- passes through downtown Paragould. "I think we're well overdue for a museum here," Cunningham said. "I think we need something to show off here in Greene County." Bettye Busby, president of the Greene County Historical Preservation Society, stated that the organization would be extremely interested in displaying the meteorite once the goal of finding a home for a county museum has been accomplished. "I think this is where it should be," Busby said, "especially if we do succeed in getting a museum." "If it turns out that there are more people interested in it, I would like to see it come to Paragould," Hancock said. "There's only one 'Paragould Meteorite,' really. This is a historical thing for us, and it would be a historical justice for the meteorite to return to Paragould." At 7 p.m. on April 8, a public meeting will be hosted by the Greene County Historical Preservation Society at First Presbyterian Church. According to Busby, this initial meeting will determine the amount of interest the community has in housing a museum. "We'd have to have the support of the community to begin, or there'd be no reason to pursue it," Busby said. "It's going to be an uphill battle," Hancock said. "Without the support of the people, it probably will not happen." According to Hancock, after the meeting on April 8, the next step will entail gathering support and sending a packet to the Field Museum to request that the meteorite be sent to Paragould. "The key," Hancock said, "is getting support." __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Pluto - Part 2 of 2
Sky & Telescope, March 1990, pp. 295-296: A Far Out Planet, George Lovi, excerpt: Finally, a rather interesting astronomical issue has surfaced as to whether Pluto should legitimately be included in the roster of nine major planets. Its decidedly small size (some 2,280 km across) makes it considerably smaller than any other planet, even smaller than several planetary satellites (including our own Moon). It also has a most unplanetary, asteroid-like orbit. For sometime people have suggested that Pluto is an escaped satellite of Neptune, one resembling Triton. Others have proposed that Pluto might be some sort of condensed clumping of icy cometary nuclei, or the material that makes up these bodies. It's really too bad that we cannot look forward anytime soon to a probe answering some of our questions about this "neither fish nor fowl" planet - or whatever it happens to be. CRUIKSHANK D.P. (1999) Pluto and Charon edited by S. Alan Stern and David Tholen (MAPS 34-4, 1999, 682, excerpt): While this book is at least a wonderful compilation of our best understanding of Pluto and Charon, it also represents a window on the other small bodies of the outer solar system, notably Triton, a few other outer planet satellites, and the newly revealed population of icy bodies constituting the Kuiper Disk. Many Kuiper Disk objects share Pluto's orbital resonance with Neptune; vastly more lie beyond Pluto and form a distribution that may extend to 200 AU or more. Indeed, Pluto and Charon appear to be only the largest known representatives of this new-found component of the solar system. Although the exploration of the Kuiper Disk is in its infancy, this book about the properties of Pluto and Charon in its broader context helps to establish the importance of primitive icy bodies and is a kind of guidebook toward the understanding of their physical properties. This excellent book is a credit to the Arizona series, to its editors, and to the chapter authors. I recommended it to investigators in the field, advanced students, and science libraries without reservation. (D.P. Cruikshank) __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Pluto - Part 1 of 2
Hi Tom, AL, and List, > I have a book that I recommend her to read or do research from, it is > called "Out Of The Darkness" The Planet Pluto by Tombaugh and Moore The articles Ron posted on Sedna also contain several interesting passages with regard to Pluto's present status as a planet or a KB (Kuiper Belt) object, for example: "Is it a planet? The new discovery will reignite the debate about what constitutes a planet. One group of astronomers believe that Pluto is not a true planet but merely one of the largest of a vast number of minor objects in the outer Solar System. The alternative standpoint is that Pluto is a planet and those who believe that will have to classify Sedna as the 10th planet." or: "Is Sedna a planet? NO, at least not by our definition. Astronomers have been unable to agree on a precise definition of planet, but we have a suggestion for a definition below. By our definition, Sedna is not a planet. Nor is Pluto ..." Here is a review of the book AL mentions: Sky & Telescope, March 1981, pp. 244-245 Out of the darkness: The planet Pluto C.W. Tombaugh and Patrick Moore Stackpole Books, Harrisburg, Pa., 1980, 221 pages - $14.95. The year 1980, being the 50th anniversary of Pluto's discovery, saw at least three books devoted to this intriguing little planet. Fortunately, the best has been saved for last. This modest volume captures the drama of the planet's detection as only its discoverer could; much of it reads more like a novel than a scientific account of a series of events. There is relatively little science (see the other books if you want much of that). Rather, here unfolds the story of the events leading up to the search, the personalities involved, the project itself, and what happened after the excitement died down. The second author's contribution is basically to supply background material and to summarize present knowledge of Pluto. Since there is not very much known about this small world, this book is almost exclusively a history of its discovery - as all books on this subject more or less are. There are 16 chapters, 11 being by Clyde Tombaugh. An early autobiographical sketch by Tombaugh leads to four chapters by Patrick Moore that discuss the discovery of Uranus, the asteroids, and the prediction and identification of Neptune (which sets the stage for the Pluto story). These chapters are quite brief yet cover all the important people and events. Tombaugh follows with nine more extensive chapters covering the early searches, the acquisition of the 13-inch astrograph at Lowell Observatory, the photographic program, the discovery itself, subsequent developments, our knowledge of Pluto since 1930, and the discovery of its satellite in 1978. Details of the latter event are also elaborated by the discoverer, James W. Christy, in a very nice foreword. Next is a too short chapter by Moore on Pluto as we now know it, followed by the final one by Tombaugh discussing the possibilities that there might still be something else out there, for which claims have already been made. This reviewer suspects that Tombaugh might be a bit pessimistic here, but it is probably the caution of experience. There are also four appendixes, a helpful glossary, and a rather brief index. The first appendix describes the 50th anniversary celebration in Las Cruces, New Mexico, on February 18, 1980, a spectacular affair primarily honoring Tombaugh. It also included a scientific symposium devoted to our present understanding of Pluto, and it is unfortunate that this book has no real discussion of the results. Other appendixes contain pertinent numerical data and important dates in the Pluto story. Finally, there is a mildly interesting but somewhat irrelevant descriptive scale model of the solar system. The book follows a generally narrative style with relatively few technical details. There are no equations, a few numbers where needed, a variety of good photographs, and a few diagrams of which some, unfortunately, are virtually incomprehensible. This volume provides generally fascinating reading for anyone with even a mild interest in astronomy, and especially for those interested in planetary astronomy or the history of science. It could even be recommended as supplemental background reading for a general astronomy course, as a good example of how seemingly dull routine work can be made quite interesting. I would certainly recommend this work to anyone who is interested enough to read the book reviews in Sky And Telescope. ROBERT S. HARRINGTON (U.S. Naval Observatory) To: [EMAIL PROTECTED] [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] OT, Book Recommendation, Pluto
Asunto: Re: [meteorite-list] OT, Book Recommendation, Pluto Fecha: 03/16/2004 8:10:37 AM Mexico Standard Time De: MexicoDoug Para: [EMAIL PROTECTED] Tom, Well it sound like you are looking for resources although the title says ... book. The best bet might actually be a combination of dictionary and internet. Whether it is pro or con, she will need to start in the dictionary - a trusty reference book. The term planet is not an astronomical nor technical term. It has its roots in concept of "wanderers" against the "fixed" stars of the ancient ones. So the negative that your daughter would like to support could be argued by saying the planets are only the wanderers believed to be recognized by the ancient ones, I don't think that will even include Uranus, definitely not the gas giant Neptune, nor the moon sized Pluto, so there are only six planets. While one might claim Neptune had been theoretically visible on a clear ancient night to the naked eye to a person with telescopic vision, that would be impossible with Pluto. If she chooses the technical route, she can search on the internet for orbital eccentricity and inclination of orbit in the solar plane and compare the planets. (Note planets go through the Zodiac, although the Zodiac actually changes, check the constellation Pluto was in last year). Then she can search it for formation of the inner and outer planets and why is Pluto not a gas giant if the other outer "planets" are. Addressing of course whether we have a double standard for the outer and inner planets regarding gas giants and rocks. Then she can also ignore or the fact that the dictionary sometimes defines asteroids as minor planets. The wander, have fixed orbits ... and as we know have even differentiated cores in some cases. That is a two edged axe so maybe she can consider it, as although minor planet has the word planet in it, we are not really taught by our expert kindergarten and primary school teachers that Ceres for example is a planet. Probably it is a much more persuasive argument that Ceres is a planet. Hope she has fun. Saludos Doug Dawn Mexico En un mensaje con fecha 03/16/2004 12:24:05 AM Mexico Standard Time, [EMAIL PROTECTED] escribe: Asunto: [meteorite-list] OT, Book Recommendation, Pluto Fecha: 03/16/2004 12:24:05 AM Mexico Standard Time De: [EMAIL PROTECTED] Para: [EMAIL PROTECTED] Enviado por Internet Hello List, I was wondering if I could get your help. My daughter is doing persuasive-research essay. Her topic of choice is: Pluto should not be considered a planet. Does anybody know of any resources that could help her justify her argument? Thanks, Tom peregrineflier <>< Proudest member of the YMCA # OU812
Re: [meteorite-list] OT, Book Recommendation, Pluto
Hi Tom and all, I have a book that I recommend her to read or do research from, it is called "Out Of The Darkness" The Planet Pluto by Tombaugh and Moore. Stackpole Books, Harrisonburg, Pa. Lutterworth Press copyright is 1980. Book has a dark cover with white title and a artist rendering of Pluto and Charon on the cover. My copy is signed by the author. Best. --AL Mitterling __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
RE: [meteorite-list] OT: bacteria & ferromanganese nodules
Hi List, be sure when you click on the URL to scroll down. At first it only comes up that it needs the latest version of the simplified Chinese language support package installed and I almost thought it didn't work. Well, at least on my computer. Otherwise you will find the article and images quite interesting. Thanks! Sternengruss, Moni From: Robert Verish <[EMAIL PROTECTED]> To: Meteorite-list Meteoritecentral <[EMAIL PROTECTED]> Subject: [meteorite-list] OT: bacteria & ferromanganese nodules Date: Mon, 15 Mar 2004 23:37:20 -0800 (PST) http://www.scienceinchina.com/yk/yd/0002/yd0187.pdf On Page 188 in: SCIENCE IN CHINA (Series D) Vol. 43 Moreover, a combined theory called biology-chemistry mechanism has been put forward. Therefore, to find microbe bodies acting as constructors of the ferromanganese nodules is the key work to prove the microbe origin theory. For the reasons above, a high-precision fluoroscope study was systematically conducted on the ferromanganese nodules collected from the East Pacific Ocean in 1997, as well as EPMA research. The result of the study is that a lot of microbe bodies were discovered in these ferromanganese nodules and microbic fluorescent microstructures can be seen in them. The work shows that the living activities of microbes are closely related to the origin of the ferromanganese nodules. 1 Samples and study methods -- 1.1 Samples - The studied ferromanganese nodules were collected from the East Pacific deep sea floor by a scientific investigation ship of the State Oceanic Administration in late 1997. Two types of samples were selected from two sites. No. 161 is an irregular cauliflorate ferromanganese nodule with a rough surface and a growing root, collected from the muddy sediments at the depth of 4,862 m, 11 45.3 N, 139 31.86 W. The other, No.23562, is a potato-shaped one with a relatively smooth surface, collected at the depth of 5,107 m, 10 07.50 N, 154 07.50 W. 1.2 Sample treating - Since the nodules have high porosity and a high water content, before slicing, the samples must be consolidated by a special reagent to fill in the pore space. According to the analytic requirements of the fluorescence microscope and EPMA, the glue 502 was selected as the reagent because it is less fluorescing and high temperature-resistant. After being onsolidated the samples are sliced along both the perpendicular and parallel directions of growing. Bob V. __ Do you Yahoo!? Yahoo! Mail - More reliable, more storage, less spam http://mail.yahoo.com __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list _ Find things fast with the new MSN Toolbar includes FREE pop-up blocking! http://clk.atdmt.com/AVE/go/onm00200414ave/direct/01/ __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
