Proterozoic Tectonics: An Indian Perspective

Abstract

Significant advances have been achieved over the last five years in our understanding of the nature of Proterozoic tectonothermal events in India. This was possible because of (a) proper understanding of the pressure-temperature paths of evolution (both prograde and retrograde) of metamorphic rocks and better constraint on peak thermal and baric conditions of metamorphism, (b) better understanding of the correlation of P-T paths with tectonics, and thereby obtaining information on crustal evolution, (c) availability of well-constrained geochronological data on metamorphic and magmatic events, (d) availability of geophysical and structural data, and, (e) development of new ideas on transcontinental correlation of orogenic belts and formation/break-up of supercontinents.