Crustal Evolution and Orogeny

The processes of crustal evolution and orogeny have attracted the earth scientist since the beginning of the last century. Crustal evolution deals with the development of the Earths crust since the primeval stage of the planets formation. Orogeny represents the period of mountain-building, whereas the orogenesis comprises the processes controlling the development of mountain belts. This text looks at crustal evolution and terrestrial plate tectonics operation from the early Archean to the present day, development of ideas pertaining to accumulations of tectonic models, accounts of structural development in rock of the early Proterozoic age in the northwestern peninsular Indian shield.