|
Geologically, the State forms a part of peninsular India and is one of the
most ancient land masses. The geological formations of Andhra Pradesh range from
the most ancient to the recent. The State consists of Igneous, Sedimentary &
Metamorphic formations. The Peninsular Gneissic Complex consists of Archaean
group covered by a complex group of Gneisses and Schists. The Precambrian
sedimentary formation of the Kadapa Super Group and Kurnool Group are found in
Kurnool, Kadapa, Ananthapur, Chittoor, Guntur, Prakasam and Krishna districts.
The Deccan traps are found in East and West Godavari districts. Outcrops
Tertiary formations are found in East and West Godavari and Visakhapatnam
districts and the Quaternary sediments occurring as thick blankets of alluvium
are found in the river valleys, deltas and along the East coast.
Figure 1: Geological and mineral map of Andhra Pradesh
|