Which one among the following systems contains the oldest rock formation of India?
Aravalli System
Archean System
Cuddapah System
Vindhyan System
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2013
The Archean System represents the oldest geological era (approximately 4 billion to 2.5 billion years ago) and comprises the basement complex of India. It includes highly metamorphosed rocks like gneisses, schists, and charnockites, often referred to as the “Archean Gneiss Complex”. These rocks form the core of the Indian Peninsular block. Younger rock systems like Dharwar (part of Archean/Proterozoic), Cuddapah (Purana), and Vindhyan (Purana) were deposited or formed upon this ancient base.