[meteorite-list] Tamdakht classification

From: Philippe Thomas <thomasmeteorites_at_meteoritecentral.com>
Date: Sun, 1 Feb 2009 07:49:27 +0100 (CET)
Message-ID: <11820061.168317.1233470967477.JavaMail.www_at_wwinf1b36>

For those who are interested, I updated my page on Tamdakht and added a Back Scattered Electrons (BSE) image supplied by Albert Jambon.

- We know that it is an H according to:
1) The magnetic susceptibility (= quantity of metal)
2) the composition of minerals (olivine + pyroxene)

- The metamorphic type 5 (to verify) depends on the degree of equilibration between minerals and (in the second order) of the texture (not only chondrules, but also size of feldspars and metal-sulphide areas).
Here it is certain that it is neither a type 3 nor a type 6.

A preliminary declaration was sent to the MetSoc, result of the French-Moroccan cooperation.

Best wishes,
Philippe
http://www.meteoritica.com/tamdaght.html
Received on Sun 01 Feb 2009 01:49:27 AM PST