5z6 SHORT COMMUNICATIONS

• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Greenland
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.603.7034; http://www.minersoc.org/pages/Archive-MM/Volume_40/40-313-526.pdf

implication is that the rocks had not been previously involved in metamorphism or else they would have been previously dehydrated and this would not promote a high P1a,o- I f the Sittampundi complex is Archaean in emplacement and part of an early anorthositic episode as seen in Greenland, the Limpopo orogenic belt of Africa, Malagasy, and elsewhere (Windley, I973) then it becomes important o date the age of the metamorphism asit will enable the time by which the crust in this part of India had assumed a minimum thickness of about 3o km to be estimated. Acknowledgements. This work commenced in the Department of Geology, University of Bristol, while the second author was supported by a Commonwealth Academic Staff Fellow-ship and the first author was Reader in Geology. We thank Professor Dineley for his en-