[meteorite-list] Thin Section images - NWA xxxx 165g

From: Dave Gheesling <dave_at_meteoritecentral.com>
Date: Fri, 15 Jan 2010 22:52:34 -0500
Message-ID: <3D505EFC2C3F45939FA2ED39843F8147_at_meteorroom>

Thanks for the images Greg. This is a killer specimen, and it was a
pleasure to see under a loupe at the last MAG meeting!
Thanks again,
Dave
www.fallingrocks.com

-----Original Message-----
From: meteorite-list-bounces at meteoritecentral.com
[mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of Greg
Catterton
Sent: Friday, January 15, 2010 10:00 PM
To: meteorite-list at meteoritecentral.com
Subject: [meteorite-list] Thin Section images - NWA xxxx 165g

Hi to all, I know some of you enjoy thin section images, here is a series
from what is likely to be an LL5-LL6 genomict breccia.
This is the neat 165g stone with multiple inclusions that I am getting
classified.

Stone prior to cutting:
http://i27.photobucket.com/albums/c165/jedisdiamond/165gNWAxxxx.jpg

Here is the main mass:
http://i27.photobucket.com/albums/c165/jedisdiamond/165gNWAxxxx616gmainmass.
jpg

Detail of clasts:
http://i27.photobucket.com/albums/c165/jedisdiamond/LithologyMap.jpg

What is the preliminary results?

LL5-LL6 genomict breccia containing clasts of:
-type 4 or type 5 LL chondrite
-type 6 LL chondrite
-fine-grained microbreccia clasts
-shock darkened clasts
-and impact melt litholies ranging from partially melted to totally melted
equigranular and vitrophyiric objects (some of which show evidence of
multiple heating events) set w/in a fine grained accretionary matrix
containing sparse, but well-defined chondrules.

And here are the tin section images - they are very nice, enjoy!

http://i27.photobucket.com/albums/c165/jedisdiamond/Chond_125xPL.jpg
http://i27.photobucket.com/albums/c165/jedisdiamond/Clast_1225xXP.jpg
http://i27.photobucket.com/albums/c165/jedisdiamond/Clast_1325xXP.jpg
http://i27.photobucket.com/albums/c165/jedisdiamond/Clast_225xPL.jpg
http://i27.photobucket.com/albums/c165/jedisdiamond/Clast_3125xXP.jpg
http://i27.photobucket.com/albums/c165/jedisdiamond/Clast_4125xXP.jpg
http://i27.photobucket.com/albums/c165/jedisdiamond/Clast_5125xXP.jpg


Hope you enjoy the pics,

Greg C.



      
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Received on Fri 15 Jan 2010 10:52:34 PM PST