BhedaghatLametaghat in Narmada Valley
Bhedaghat is the only site where Marble, Phyllite, BIF, Quartzite of the Mahakoshal group of Proterozoic age rocks have been recorded togeather. Tectonically, the Narmada Valley is a graben, a layered block of the Earth's crust that dropped down relative to the blocks on either side due to the ancient spreading of the Earth's crust.