An Encyclopaedia of Indian Archaeology v2.c40.251

v2.c40.251

The trough nature of the c. Narmada valley formed by the tectonic processes favoured the massive accumulations of sediments, at places reaching over 150 m in thickness. The occurrence of sites of Mesolithic [4.5], Chalcolithic [4.14.5] and historical periods besides those of the Palaeolithic [4.2-4] show that the region provided suitable environment throughout the Quaternary. This mighty river forms a sort of barrier between n. and s. India but since it is fordable at some points it did not cause hindrance to n.-s. movements of animals and human beings at any time.