Re: [meteorite-list] Global Warming on MARS

Hi, meteorite lovers - I've been following the Mars global warming story, and am giving a talk on it Wednesday. Here's my take. Mars does appear to be warming, based on some erosion of the south polar (dry) ice cap, at least from 1999 thru 2003. The two papers on it are Malin et al.

Re: [meteorite-list] Global Warming - 'Facts'

Hi, meteorite-lovers – Too much heat and not enough fact on global warming! Your politics are your own, but I want to correct a few fact issues in Harlan Trammel’s email. Not to dump on Harlan – at least he went beyond name-calling and based his letter on data as he understands

Re: [meteorite-list] Mica in meteorites.

Hi, list - I've had the great opportunity to work on a chondrite with phlogopite - the R chondrite LAP 04840. This weirdo has ~ 15% of amphibole, and about 1% phlogopite along with the usual olivine and pyroxene. http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1309.pdf Funny things are

[meteorite-list] New Jersey 'Fusion Crust'

Hi, listers - What matters (to me) for the New Jersey hole-in- the-roof rock is its color. If its a fresh meteorite, I think it should be covered in black stuff, whatever you want to call it. Unless the rock is a aubrite or from the lunar highlands. Happy New Year!! Allan

RE: [meteorite-list] dhofar 025

Who has real Dho 025 for sale? aht Allan H. Treiman Senior Staff Scientist Lunar and Planetary Institute 3600 Bay Area Boulevard Houston, TX 77058-1113 281-486-2117 281-486-2162 (FAX) __ Meteorite-list mailing list

RE: [meteorite-list] Kansas Legal Debate: Creation, Evolution andIntelligent Design

Hi, all -- Here's my two cents on Intellegent Design. It adopts the worst aspects of science and religion, and ends up being bad science, bad theology, and bad engineering. Intellegent Design is bad science, because it makes no testable predictions about how the universe does or did

[meteorite-list] New Hampshire Mars rock

Hi, list - I was one of the unhelpful scientist with this supposed Mars Rock from New Hampshire. Years ago, I got emails with photos of this rock, requesting that I look at it. But the condition was, if I decided it was not Martian, that I must prove exactly where on Earth it came from.

RE: [meteorite-list] Re: New Lunar? New Continent

Hi, Meteorite list -- From the data in that abstract, I'd be very cautious this rock. First, the data in the abstract are not consistent with themselves. For isntance the rock is cited as 45% anorthite, but only 3.7% Al2O3. Anorthite contains ~36% Al2O3, so a rock that is 45%

RE: [meteorite-list] Dunite

Also Brachina, which was originally thought to be a chassignite. aht Allan H. Treiman Senior Staff Scientist Lunar and Planetary Institute 3600 Bay Area Boulevard Houston, TX 77058-1113 281-486-2117 281-486-2162 (FAX) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL

RE: [meteorite-list] New Mars Rock Hints At Past Water (NWA 1950)

Hi, list -- This article, and ones like it, have been going round for a couple months, and need a bit of clarification. This meteorite, NWA1950, seems very similar to the Martian lherzolites, like ALHA77005, LEW88516, Y-793605, YA-1075 (and possibly GRV 9927). It is great to see, but

[meteorite-list] Nakhlites

Hi, List -- Any idea how many Nakhla stones have been collected? Grady's catalog says about 40 were collected soon after the fall. I wonder how many have been found since? ? Allan Allan H. Treiman Senior Staff Scientist Lunar and Planetary Institute 3600 Bay Area Boulevard Houston,

RE: [meteorite-list] Lherzolites -- expand SNC to SNCL?

Dont forget ALH84001! Call them SNACL. Or better, just Martian meteorites. aht Allan H. Treiman Senior Staff Scientist Lunar and Planetary Institute 3600 Bay Area Boulevard Houston, TX 77058-1113 281-486-2117 281-486-2162 (FAX) -Original Message- From: Matson, Robert

RE: [meteorite-list] Chassigny Chondrules

Hi, all. Chassigny contains no chondrules.It does have spherical and ellipsoidal inclusions in its olivine crystals. The inclusions contain silica-rich glass, pryoxene sprays, amphibole, whitlockite, and biotite. Their textures look a bit like chondrules, but that only represents the

RE: [meteorite-list] Ringwoodite

Hi, James - I've seen ringwoodite in shock veins in the Martian meteorite EETA79001. Have not seen it in any other Martian, nor inthe lunars. Allan = Original Message From Tom aka James Knudson SMTP:[EMAIL PROTECTED] = Hello List, Is Ringwoodite found in Lunar or Martian

RE: [meteorite-list] Red Circles

Hello, Yousef and List - Your rock with the red circles appears to be a vesicular basalt, with calcite or another carbonate mineral filling the vesicles. The carbonate minerals grow from water solutions, like groundwater. The carbonate minerals start as a little tuft of crystals, on the

RE: [meteorite-list] Missing Ureilite.

that the NomCom voted to give it a name without a place. The name Utopia 001 was considered but rejected. Allan Treiman Allan H. Treiman Senior Staff Scientist Lunar and Planetary Institute 3600 Bay Area Boulevard Houston, TX 77058-1113 281-486-2117 281-486-2162 (FAX) -Original Message

RE: [meteorite-list] Re: Mercury Meteorite Puzzle

Hi, all -- Here's my two cents on NWA 011. I think Mercury is unlikely. Reflection spectra of Mercury seem to say that its crust is nearly free of iron in its minerals, except perhaps as iron metal. That would rule out NWA 011. Some folks have suggested that aubrites might be from

RE: [meteorite-list] Unique Martian Meteorites Found In Africa (NWA 998 and NWA 1195)

Hi, All -- Water on Mars is nothing new, despite the frantic pronoucements nearly every week. The nakhlite meteorites all (?) contain veinlets of clay and other water-bearing minerals that formed before the meteorites arrived on Earth. The veinlets are pre-terrestrial because they

RE: [meteorite-list] Any evidence salt water

Yes, at least some water on Mars was salty. In Nakhla, halite (NaCl) is found in cavities, associated with iron carbonate (siderite) and calcium sulfate (gypsum). It seems pretty sure that the salt is Martian. Bridges J.C. and Grady M.M. (2000) Evaporite mineral assemblages in the

RE: [meteorite-list] Strange Martian Surface Feature

Well, IMHO, Hoagland is not a nut case. He is a clever cynical expert in public relations, who has made a nice living on the credibility of others. He has found a constituency who wants to believe in life-on-Mars, and thinks that anyone who disagrees is part of the Vast Government Conspiracy.

RE: [meteorite-list] Black Inclusions in Howardites

Also, howardites commonly contain clasts of carbonaceous chondrite material, nearly all lik CM and CR chondrites. Zolensky ME, Weisberg MK, Buchanan PC, Mittlefehldt DW (1996) Mineralogy of carbonaceous chondrite clasts in HED achondrites and the moon. Meteorite. Planet. Sci. 31, 518-537.

[meteorite-list] FW: A Tektite Shower?

Hi, List -- A Russian friend sent me this www site reporting on a shower of tektites in Russia. Here is the english abstract A RAINFALL OF TEKTITES IN NIZHIJ NOVGOROD REGION IN WINTER 1996/1997, by Dmitriev E.V. Prezented is data concerning the area of dispersed glasses that,

RE: [meteorite-list] New Finds

Rock 1 looks like a granite or granitic gneiss. The pink/orange stuff would be alkali feldspar and the dark material would be amphibole or pyroxene (difficult to tell from the photos) and magnetite. Rock 2 is impossible to tell, partly because the photos are fuzzy. I've seen terrestrial

RE: [meteorite-list] New paradigm for analyzing SNC's

Thanks for this interesting site. It's headed: Water on Mars? Who do they think they're kidding? and goes on to explain Hoffman's carbon-dioxide model. There must be some water around, though. You can't make the iddingsite in the nakhlites with carbon dioxide! Allan Allan H. Treiman

[meteorite-list] New Lunar Meteorites

Plus a herd of new lunar meteorite! http://www.lpi.usra.edu/meetings/lpsc2002/pdf/2064.pdf http://www.lpi.usra.edu/meetings/lpsc2002/pdf/1958.pdf http://www.lpi.usra.edu/meetings/lpsc2002/pdf/1635.pdf Cheers Allan H. Treiman Lunar and Planetary Institute 3600 Bay Area Boulevard Houston