Microstructural Evidence of Palaeo-Coastal Landform from Westernmost Fringe of Lower Ganga–Brahmaputra Delta

摘要: The largest delta of the world, i.e. Ganga–Brahmaputra (G-B) has been characterized by ample evidences regional morphogenetic variations. westernmost fringe this G-B long influenced both Chottonagpur upland as well recent alluvium plain between Cretaceous to early Quaternary period. Successively, undulating Rarh topography that separates these two morphogenic units evolved one relict terrains having dominancy ferrallitic soils. In area, most sedimentary formations and pedogenesis processes have performed during post-Pleistocene epoch. Here, all features residual directed through hydro-morphogenetic origins had over remnant ocean basin, which are also treated a product Palaeo-marine deposition. Alterations modifications ferrallitic–lateritic micro-features continuing changes various hydro-meteorological components. present chapter concentrates on studies deposited microstructure in lateritic pockets Paschim Medinipur district, West Bengal. Few soil samples from Palaeo-coastal tracks gully dominated badland collected thin sectioning done for assessment prevailed process Palaeo-coast development its associated events. snaps microscopic view along with digital colour analysis depict cross-bedding, ripple marks shoreline retreat mechanism study area.