Steckler, Michael S.; Humayun, S. Akhter; Seeber, Leonardo Earth and Planetary Science Letters, 273, 3–4, 15-09-2008. DOI: 10.1016/j.epsl.2008.07.009 [Consulta: 22 abril 2013]. «The edge of the pre-delta Eocene paleoshelf is marked by the shallow-water Sylhet Limestone, which runs NNE from near Calcutta to the edge of the Shillong Plateau ... The Sylhet Limestone drops ... indicating the presence of thick continental crust. East of the hinge zone the great thickness of sediments indicates that the crust is greatly thinned or oceanic ... The enormous supply of sediments provided by the Himalayan collision fed the [Ganges-Brahmaputra Delta (GBD)] and has produced ~400 km of progradation of the shelf edge since the Eocene ... Total sediment thickness beneath the GBD southeast of the hinge zone exceeds 16 km.»