[meteorite-list] Glassface found the 33rd Mars Rock
From: Sharkkb8_at_aol.com <Sharkkb8_at_meteoritecentral.com>
Date: Thu Apr 22 10:31:25 2004 Message-ID: <1c0.156b618c.2d6a8853_at_aol.com> -------------------------------1077489235 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en mlblood_at_cox.net writes: I don't get it, you guys.... not misleading unless you don't read.....I don'= t=20 get it... =20 I don't get YOU, Michael ;-) - where here do you read that he's NOT=20 selling this stuff as Martian? (You sure you're not just re-reading John D= .'s=20 retaliatory fake-Martian-auction spoof?!) NWA Mars Basaltic Achondrite just got here !=20 "This stone was purchased in Rissani, Morocco, november 2002. Trapped melt=20 inclusions in olivine contain Al-pigeonite, Al-diopside, pleonaste and glass= .=20 Large opx phenocrysts show preferred orientation; olivine phenocrysts are we= akly=20 oriented and tend to occur in clusters. The stone has a 1=E2=80=932 mm weath= ering=20 rind; interior is very fresh. The nomade that sold it to me said he saw it w= hile=20 walking through the desert. Twelve unusual meteorites are almost certainly=20 pieces of Mars that were blasted off the red planet by meteoroid impact. The= y=20 have been called SNC meteorites after the three type samples, Shergotty, Nak= hla,=20 and Chassigny, or now simply martian meteorites. All twelve meteorites are=20 igneous rocks crystallized from lava in the crust of a parent body. They are= ,=20 however, distinct from typical igneous meteorites from asteroids in ways tha= t=20 suggest that the SNC meteorites come from a much larger body, a planet. All=20= but=20 one of these meteorites are very young (1.3 Ga or less) compared to ancient=20 ages for other igneous meteorites (about 4.5 Ga). They also have higher oxyg= en=20 fugacities and contents of water and other volatiles, contain minerals with=20 ferric iron, and form a distinct trend in oxygen isotopic composition. The=20 conclusive evidence that SNC meteorites are from Mars is the analysis of gas= es=20 trapped in glass inclusions in EETA79001, which chemically and isotopically=20= match=20 gases measured in the unique martian atmosphere by the Viking lander spacecr= aft=20 desert early morning. " Gregory J. Gregory Wilson 2118 Wilshire Blvd. #918 Santa Monica, CA 90403 -------------------------------1077489235 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en <HTML><HEAD> <META charset=3DUTF-8 http-equiv=3DContent-Type content=3D"text/html; charse= t=3DUTF-8"> <META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR></HEAD> <BODY style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial; BACKGROUND-COLOR: #fffff= f"> <DIV> <DIV> <DIV> <A title=3Dmailto:mlblood_at_cox.net href=3D"mailto:mlblood@cox.net"= >mlblood_at_cox.net</A> writes:</DIV> <BLOCKQUOTE style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue=20= 2px solid"><FONT face=3DArial>I don't get it, you guys.... not misleading un= less you don't read.....I don't get it... </FONT></BLOCKQUOTE></DIV> <DIV>I don't get YOU, Michael ;-) - where her= e do you read that he's NOT selling this stuff as Martian? &n= bsp; (You sure you're not just re-reading John D.'s retaliatory fake-Martian= -auction spoof?!)</DIV> <DIV> </DIV> <DIV> </DIV> <DIV> <TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" border=3D0> <TBODY> <TR bgColor=3D#d6dcfe> <TD><IMG title=3D"" height=3D1 alt=3D"" src=3D"http://pics.ebaystatic.com/aw= /pics/x.gif" width=3D6></TD> <TD width=3D"100%"><FONT face=3DArial size=3D4><B>NWA Mars Basaltic Achondri= te just got here !</B></FONT> </TD></TR></TBODY></TABLE></DIV> <DIV> </DIV> <DIV>"This stone was purchased in Rissani, Morocco, november 2002. Trapped m= elt inclusions in olivine contain Al-pigeonite, Al-diopside, pleonaste and g= lass. Large opx phenocrysts show preferred orientation; olivine phenocrysts=20= are weakly oriented and tend to occur in clusters. The stone has a 1=E2=80= =932 mm weathering rind; interior is very fresh. The nomade that sold it to=20= me said he saw it while walking through the desert. Twelve unusual meteorite= s are almost certainly pieces of Mars that were blasted off the red planet b= y meteoroid impact. They have been called SNC meteorites after the three typ= e samples, Shergotty, Nakhla, and Chassigny, or now simply martian meteorite= s. All twelve meteorites are igneous rocks crystallized from lava in the cru= st of a parent body. They are, however, distinct from typical igneous meteor= ites from asteroids in ways that suggest that the SNC meteorites come from a= much larger body, a planet. All but one of these meteorites are very young=20= (1.3 Ga or less) compared to ancient ages for other igneous meteorites (abou= t 4.5 Ga). They also have higher oxygen fugacities and contents of water and= other volatiles, contain minerals with ferric iron, and form a distinct tre= nd in oxygen isotopic composition. The conclusive evidence that SNC meteorit= es are from Mars is the analysis of gases trapped in glass inclusions in EET= A79001, which chemically and isotopically match gases measured in the unique= martian atmosphere by the Viking lander spacecraft desert early morning. "<= !-- End Description --></DIV></DIV> <DIV> </DIV> <DIV><FONT lang=3D0 face=3DArial size=3D2 FAMILY=3D"SANSSERIF" PTSIZE=3D"10"= ></FONT><FONT lang=3D0 face=3DArial color=3D#ff0000 size=3D3 FAMILY=3D"SANSS= ERIF" PTSIZE=3D"12"></FONT><FONT lang=3D0 face=3D"Comic Sans MS" color=3D#ff= 0000 size=3D3 FAMILY=3D"SCRIPT" PTSIZE=3D"12">Gregory</FONT><FONT lang=3D0 f= ace=3DArial color=3D#000000 size=3D2 FAMILY=3D"SANSSERIF" PTSIZE=3D"10"><BR>= <BR>J. Gregory Wilson<BR>2118 Wilshire Blvd. #918<BR>Santa Monica, CA 90403<= /FONT></DIV></BODY></HTML> -------------------------------1077489235-- Received on Sun 22 Feb 2004 05:33:55 PM PST |
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