Russian Mineralogical Society
XI RMS General Meeting “Modern mineralogy: from theory to practice” combined with the Fedorov Session 2010
Orbicular Fe-cordierite genesis from the Temaguessine pluton (Central Hoggar, Algeria)

RMS-DPI code:  2010-1-49-1
Scientific session:  M2. Minerals as indicators of ore- and rock formation.
Author listing:  Abdallah N., Ouabadi A., Liégeois J.P., Fezaa N., De Waele B.
Principal author:  Abdallah Nachida
Language:  English
Abstract - Summary 
(short description):
The Temaguessine high-level subcircular pluton contains remarkable Fe-cordierite (#Fe = 0.87) orbicules. These later have a core rich in cordierite (40%) and a leucocratic quartz–feldspar rim. The orbicules have a core rich in cordierite (40%) and a leucocratic quartz–feldspar rim. They are interpreted as resulting from the incongruent melting of the meta-wacke xenoliths collapsed into the magma: the breakdown of the biotite + quartz assemblage produced the cordierite and a quartz–feldspar minimum melt that is expelled, forming the leucocratic rim. Their generation occurred at T < 850_ and P < 0.3 GPa.
Date of presentation:  12/10/2010
Time of presentation:  17:00
Presentation Place:  Mining University, Hall 1164
RMS-DPI code:  2010-1-49-1
Proceeedings volume 
in the RMS catalogue:
Modern mineralogy: from theory to practice
Pages:  135
File of proceedings 
 231 K
Status:  printed
Accepted:  14/07/2010
Published on-line:  21/11/2010
Permanent address of publication:
Contact author(s):  Abdallah, Nachida

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printed on 22/09/2020