Sedimentary landforms associated with abandoned channels of Sankosh River in India

Abandoned channels are a geomorphologic testimony of channel movement in the river valleys. They are recognized as depression in the landscape and located at the position of a formerly active channel, though typically of considerably reduced width and depth. An abandoned channel is an inactive channel, defined as a former stream channel through which water no longer flows. Abandoned channels are the result of meander neck and chute cut-off and channel avulsion. In this regard, it is said that channel infilling is considered a more useful record of channel abandonment processes. The investigator mainly focuses on the study of various channels abandonment style and associated sedimentary landforms with them in the study area. In the study area, some important resultant landforms such as meander cut-off, ox-bow lake, plug bar, point bar etc. are identified at the time of field study in different reaches of River Sankosh.