NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Indian Geography Evolution

Doorsteptutor material for competitive exams is prepared by world's top subject experts: get questions, notes, tests, video lectures and more- for all subjects of your exam.

Get video tutorials on geography @ YouTube Examrace Channel

Geological Time Scale with reference to India - 4 Eras & 10 Periods Explained

Geological Evolution

  • PreCambrian (600 Million Years ago) : Archaean Gneissic and Granites. Igneous Activities, subsequent Metamorphism andfolding of the Arrival. Dharwarian Group (Bijawars) Igneous activities and intrusions.
  • Cambrian. Calcareous and Arenaceous deposits (Cuddapah and Vindhvanbasins) . Gondwana system (carboniferous) permacarboniferous glaciation and extensive glaciofluvial deposition.
  • MidMesozoic. Fracturing of Gondwanaland, further uplift of Vindhyan sediments formation of western ghats.
  • Cretaceous. Lava flow and formation of Deccan Trap.
  • Tertiary. Collision of the Indian plate with Eurasian plate leading to Himalayan orogeny.
  • Oligocene. Himadri (Greater Himalayas) Rajmahal Garo gap or the Malda gap and upheaval of IndoGanga divide (Potwar Plateau) .

Manishika