What is Dharwar system..??

• These rocks have been formed as a result of the erosion and sedimentation of the rocks of the Archaean system.

• These are the oldest sedimentary rocks.

• No fossil is found here. It is so because either there was no origin of species during their formation or the forms of the fossils got destroyed with the passage of time.

• The Aravali mountain range which is the oldest fold mountain of the world has been made with these rocks.

• The rocks of this system are found in the districts of Dharwar and Shimoga in Karnataka.

• The rocks of this system are found in the southern Deccan region from Karnataka to the Kaveri valley, districts of Bellary, Shimoga, Sasar mountain range in Jabalpur and Nagpur and the Champaner mountain range in Gujarat.

• In north India the rocks of this system are found in the Himalayan ranges of Ladakh, Zaskar, Garhwal and Kumaon, and the long range of Assam plateau.

• The rocks of this system are economically very important.  All prominent metallic minerals (iron, gold, manganese etc) are found in these rocks.