Eastern Ghats (Indien)

Collaborators: Sumit Chakraborty, Bochum, Germany Aniruddha De, Calcutta, India Somnath Dasgupta, Pulak Sengupta, Calcutta, India Rocks of the Eastern Ghats belt, exposed along the eastern coast of India, comprise of a series of multiply metamorphosed granulites of pre-cambrian age. These rocks are of particular interest from a tectonic as well as purely metamorphic petrological standpoint. Tectonically, these show certain similarities to rocks found in Antarctica and are expected to provide clues to the evolution and exhumation of the lower crust in the Indo-Antarctic region before these two blocks of continental crust drifted apart from each other. Petrologically, at least one of the multiple metamorphic events has been shown to be under the extreme conditions of Ultra High Temperature metamorphism, where temperatures as high as 1100 �C were attained. The collaborative work in this region is aimed at addressing three issues: origin of magmatic suites in this granulite belt time scales of metamorphism and uplift deduced from thermal and kinetic modelling studies and use of trace elements to study melt generation and migration processes in the lower crust through modelling of melt transport.