[meteorite-list] Interesting meteorites- Portales and Sahara 98362
From: John Divelbiss <j.divelbiss_at_meteoritecentral.com>
Date: Thu Apr 22 10:01:32 2004 Message-ID: <000a01c20e9d$90f49e80$7f155a0c_at_0m824> This is a multi-part message in MIME format. ------=_NextPart_000_0007_01C20E7C.08934D00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello all, The list has recently discussed the Portales Valley meteorite with more = to be said I'm sure. I have a wonderful piece that has a nice mix of = metal vein and stone...including a few large chondrules right next to a = metal vein. Very strange...you would think such an impact would alter = the stone greatly...but it doesn't look like it at first glance. Also = the crust over the metal portion is black and not thick. The crust over = the stone portion is similar but has the look of having more minerals in = it. With my small 5g piece, I cannot make too many observations. That brings me to a different meteorite. It is Sahara 98362, which is = supposedly a H6, impact melt breccia (IMB). My first question is "Has it = been thoroughly studied, and where can I find results?" The second issue...what is difference between an impact melt and what = happended to the Portales stone material? One hit by stone and the other = hit by an iron? It must be more than that, because the 98362 material is = glass-like when viewing a fractured surface. It is loaded with metal. I = seen no other meteorite like it. It looks almost like the sulphur slag = that has been discussed lately. Help...will someone please provide more insight into this very strange = meteorite? Thanx in advance, John Divelbiss ------=_NextPart_000_0007_01C20E7C.08934D00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type> <META content=3D"MSHTML 5.00.3314.2100" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT size=3D2>Hello all,</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>The list has recently discussed the Portales Valley = meteorite=20 with more to be said I'm sure. I have a wonderful piece that has a = nice mix=20 of metal vein and stone...including a few large chondrules right = next to a=20 metal vein. Very strange...you would think such an impact would alter = the stone=20 greatly...but it doesn't look like it at first glance. Also the crust = over the=20 metal portion is black and not thick. The crust over the stone portion = is=20 similar but has the look of having more minerals in it. With my small 5g = piece,=20 I cannot make too many observations.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>That brings me to a different meteorite. It is = Sahara 98362,=20 which is supposedly a H6, impact melt breccia (IMB). My first question=20 is "Has it been thoroughly studied, and where can I find=20 results?"</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>The second issue...what is difference between = an impact=20 melt and what happended to the Portales stone = material?</FONT> <FONT=20 size=3D2>One hit by stone and the other hit by an iron? It must be more = than that,=20 because the 98362 material is glass-like when viewing a fractured = surface. It is=20 loaded with metal. I seen no other meteorite like it. It looks = almost like=20 the sulphur slag that has been discussed lately.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>Help...will someone please provide more insight into = this very=20 strange meteorite?</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>Thanx in advance,</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>John Divelbiss</FONT></DIV> <DIV> </DIV> <DIV> </DIV></BODY></HTML> ------=_NextPart_000_0007_01C20E7C.08934D00-- Received on Fri 07 Jun 2002 11:35:40 PM PDT |
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