[meteorite-list] "Flaming rocks"???
From: MeteorHntr_at_aol.com <MeteorHntr_at_meteoritecentral.com>
Date: Thu Apr 22 09:41:08 2004 Message-ID: <cd.23464c7.27b71b75_at_aol.com> --part1_cd.23464c7.27b71b75_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 2/10/01 3:10:49 PM Central Standard Time, fprochas_at_premier1.net writes: > Question for those with experience performing microhardness measurements on > meteorites. Are metal flakes in chondrites typically of a size large enough > to do this analysis. If so, and if the flakes are relatively homogenous, > might it be possible to measure the microhardness of flakes at the fusion > crust and then further toward the center to develop a curve similar to those > done for irons? > > Hello Frank et al., I might suggest such an experiment on a slice of Portales Valley. I have some slices that have huge portions of metal as well as large stone portions right up against the edges. The crust is unusual as it is not too thick. I know many experts call PV just an ordinary chondrite, but there could some interesting stone verses metal melting/ablation comparisons since both portions experienced the identical circumstances during the fall. I would imagine that some Mesosiderite Falls (such as Estherville) might be good for such an experiment too. Steve Arnold --part1_cd.23464c7.27b71b75_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit <HTML><FONT FACE=arial,helvetica><FONT SIZE=2>In a message dated 2/10/01 3:10:49 PM Central Standard Time, <BR>fprochas_at_premier1.net writes: <BR> <BR> <BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Question for those with experience performing microhardness measurements on <BR>meteorites. Are metal flakes in chondrites typically of a size large enough <BR>to do this analysis. If so, and if the flakes are relatively homogenous, <BR>might it be possible to measure the microhardness of flakes at the fusion <BR>crust and then further toward the center to develop a curve similar to those <BR>done for irons? <BR> <BR></BLOCKQUOTE> <BR> <BR>Hello Frank et al., <BR> <BR>I might suggest such an experiment on a slice of Portales Valley. I have <BR>some slices that have huge portions of metal as well as large stone portions <BR>right up against the edges. The crust is unusual as it is not too thick. I <BR>know many experts call PV just an ordinary chondrite, but there could some <BR>interesting stone verses metal melting/ablation comparisons since both <BR>portions experienced the identical circumstances during the fall. <BR> <BR>I would imagine that some Mesosiderite Falls (such as Estherville) might be <BR>good for such an experiment too. <BR> <BR>Steve Arnold</FONT></HTML> --part1_cd.23464c7.27b71b75_boundary-- Received on Sat 10 Feb 2001 05:32:21 PM PST |
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