Stratigraphie Position of the Tirodi Gneiss in the Precalnbrian Terrane of Central India: Evidence from the Mansar Area, Nagpur District, Maharashtra

In the Precambrian terrane of central India the question of the relation between different gneiss and schist belts has not been solved. Eventhough the Tirodi gneiss is generally considered to be the basement of the Sausar Group, unequivocal sedimentological criteria are not supplemented to confirm this view. A conglomerate which belongs to the Sausar Group has been mapped at the contact of a gneissic roc in the Mansar area of Nagpur district, Maharashtra, during the present investigation. Occurrence of gneiss pebbles in this conglomerate suggests that the gneissic unit was the source of the pebbles and acted as the basement to the Sausar Group.