3. The Cuddapah System

The Cuddapah formations (Andhra Pradesh) occupies the deep basins of: (i) the lower valleys of Penganga and Godavari, (ii) the Talcher Series between Mahanadi and Brahmani (Odisha), the upper courses of the Narmada and Son rivers, and (iii) west of Aravallis near Jodhpur. These rocks are rich in building material, shales, limestone, and sandstone. Some inferior quality of iron ore, manganese, copper, and asbestos are also found in these formations.