Ganges Delta - Geology

Geology

The Ganges Delta lies at the junction of three tectonic plates: the Indian Plate, the Eurasian Plate, and the Burma Plate. Enormous sediment supply since the Himalayan collision made ~400 km progragation of the shelf edge since Eocene. The edge of the paleoshelf in Eocene runs approximately from Calcutta to the edge of the Shilong Plateau. The edge of the paleoshelf marks the transition from the thick continental crust in the northwest to the thin continental and oceanic crust in the southeast. The sediment thickness southeast of the edge of the paleoshelf beneath the Ganges Delta can exceed 16 km.