The Personality of India: Pre- and Proto-historic Foundation of India and Pakistan c13.s1.t1.4

c13.s1.t1.4

The conditions necessary for the formation of this rock are : tropical heat, rain and thick vegetation, alternating wet and dry seasons ( each of several months duration ), imperfectly drained elevated level or gently sloping surface, and a subsoil that will retain moisture for long periods. Since these conditions do not exist on the east coast today, a hypothesis of three former wet or pluvial periods separated by dry periods was put forward on the basis of their investigation of a number of sites. As we will see a little later, these periods were correlated with human industries.