[meteorite-list] Black inclusions in NWA R-Chondrites?
From: Darren Garrison <cynapse_at_meteoritecentral.com>
Date: Mon Jul 24 14:20:59 2006 Message-ID: <jl3ac2hp2vrm4f64fgfsm88j00qavu87au_at_4ax.com> On Mon, 24 Jul 2006 12:55:32 -0400, you wrote: >Hi, all, > >Interesting inclusions - they sure do look carbonaceous, eh? > >I recall coming across a photo of a NWA 869 with a similar inclusion (quite >a while ago now, sorry - no link!), and the accompanying suggestion was that >it was either carbon or graphite based. Here's a couple of examples of the black areas in NWA 869 from my collection: http://webpages.charter.net/garrison6328/nwa_869_micromount.jpg http://webpages.charter.net/garrison6328/nwa869clast_03.jpg Note that the black areas in 869 are pretty much flat and featuress, but the black areas in the R chondrites are filled with chondrules. http://webpages.charter.net/garrison6328/nwa2943_black_detail.jpg The significance of that, I could only guess at. Received on Mon 24 Jul 2006 02:21:46 PM PDT |
StumbleUpon del.icio.us Yahoo MyWeb |