Question
Consider the following events in the geological history
of India: 1. Formation of Gondwana coal 2. Formation of Himalayas 3. Marine transgression in western India 4. Formation of Deccan traps What is the correct chronological order of the above events, starting from the earliest time?Solution
Some of the important events in the recent geological history of India from earliest to latest time are: 1. Formation of ‘basement complex’ (Pre-Cambrian) – formation of the stable shield like region that forms the base of Indian land mass. 2. Formation of Gondwana rock system 3. Marine transgression in western India (Jurassic) –It led to deposition of thick series of shallow water deposits in Rajasthan and Gujarat. 4. Formation of Deccan traps (Cretaceous) – Series of basaltic lava fl ows took place when Indian plate passed over a volcanic hotspot. 5. Formation of Himalayas (Tertiary) due to collision of Indian plate with Eurasian plate. 6. Formation of Indo-Gangetic plains (Quaternary)
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