[meteorite-list] Nice Chondrules

From: Treiman, Allan <Treiman_at_meteoritecentral.com>
Date: Thu Apr 22 09:55:56 2004
Message-ID: <9CBE44BF7DE9D511960300500424D7D0111FCF_at_cassnt2>

Beautiful and educational meteor-wrongs!

The first rock is an oolitic limestone, partially silicified.
The silicified stuff is more resistant to weathering, stands
up above the limestone itself, and is commonly stained reddish.

The second rock appears to be a greenish (glauconitic?) sandstone.
The rind is probably case-hardened with desert varnish. Case-
hardening is pretty common in desert rocks -- the rind becomes
cemented (carbonate or silica) while the interior turns sandy.

The third rocks are ventifacts, carved by windblown sand. By their
color, they are probably limestone. Behind the rocks is a nice
desert pavement, which is consistent with lots of wind.

   Geologically yours
   Allan

Allan H. Treiman
Lunar and Planetary Institute
3600 Bay Area Boulevard
Houston TX 77058-1113
   281-486-2117
   281-486-2162 FAX
  treiman_at_lpi.usra.edu


-----Original Message-----
From: DiamondMeteor [mailto:DiamondMeteor_at_hotmail.com]
Sent: Thursday, January 31, 2002 1:22 AM
To: meteorite-list_at_meteoritecentral.com
Subject: [meteorite-list] Nice Chondrules


Dear List;

Please have a look at these nice chonrules.
http://pages.britishlibrary.net/mhy10/meteor/chnd.htm

Also these nice fusion crust:
http://pages.britishlibrary.net/mhy10/meteor/fc.htm

Also these nice flow lines:
http://pages.britishlibrary.net/mhy10/meteor/fl.htm

Cheers
Mohamed
-------------------------------------------------------------------------


______________________________________________
Meteorite-list mailing list
Meteorite-list_at_meteoritecentral.com
http://www.pairlist.net/mailman/listinfo/meteorite-list
Received on Thu 31 Jan 2002 09:18:19 AM PST