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India is home to a diverse range of metamorphic rocks found across various geological regions. These rocks have undergone transformation due to heat, pressure, and chemical processes over millions of years. The distribution of metamorphic rocks provides insights into the country’s geological history and tectonic activity.
Deccan Plateau
The Deccan Plateau is rich in metamorphic rocks such as schists, gneisses, and marbles. These rocks are primarily part of the Dharwar Craton, which is one of the oldest geological formations in India. The region’s metamorphic rocks date back to the Precambrian era and are associated with ancient volcanic activity.
Western Ghats
The Western Ghats feature metamorphic rocks like gneisses and schists. These rocks have been subjected to regional metamorphism due to tectonic movements. The area is also known for its mineral deposits, including garnets and sapphires, which are found in metamorphic rocks.
Himalayas
The Himalayan region contains some of the most significant metamorphic rocks in India, including schists, gneisses, and marbles. These rocks have formed due to the collision of the Indian Plate with the Eurasian Plate, resulting in intense pressure and heat. The Himalayas continue to be a dynamic zone for metamorphic processes.
Other Notable Regions
- Aravalli Range
- Vindhya Range
- Eastern Ghats