The Geography of the Puranas c13.s7.3

c13.s7.3

After the fifth 'recorded' revolution, known as the charnian (date uncertain), the history of the evolution of the earth's surface is rather complete, since the sediments begin to contain fossils of different primitive animals in steadily increasing numbers. As before, the uplifted continents slowly began to sink back into the plastic mass below and the incessant pouring of rain washed away the rocky material of the mountains and high plateaus. Ocean water crept inland and covered large areas over the continents. This extensive inundation was the most characteristic feature of the Early Palaeozoic chapter of the earth's history and lasted for about 160 million years. Meanwhile the stresses in the earth's crust were slowly gathering their forces for the major outbreak that finally took place in the year 280,000,000 B.C.