Controls on sediment provenance in the Baghmati river catchment, Central Himalaya, India

Show simple item record Jain, Vikrant Wasson, Robert McCulloch, Malcolm Kaushal, Rahul K. Singhvi, Ashok K.
dc.coverage.spatial United Kingdom 2022-01-28T07:49:26Z 2022-01-28T07:49:26Z 2022-03
dc.identifier.citation Jain, Vikrant; Wasson, Robert; McCulloch, Malcolm; Kaushal, Rahul K. and Singhvi, Ashok K., "Controls on sediment provenance in the Baghmati river catchment, Central Himalaya, India", Journal of Earth System Science, DOI: 10.1007/s12040-021-01759-z, vol. 131, no. 1, Mar. 2022. en_US
dc.identifier.issn 0253-4126
dc.identifier.issn 0973-774X
dc.description.abstract Rapidly uplifting Himalaya contributes a huge sediment load that governs the morphological characteristics of the rivers draining it and the flood hazards associated with them. Sediment budgeting of the Himalayan rivers has been a challenge in geomorphology due to complex lithotectonic terrains, varied tectonic activity and rainfall distribution, and extremely diverse topography. Such a situation calls for studies of individual catchments where sediment contributions from different lithotectonic and topographic units can be estimated and controls on sediment yield can be determined to inform understanding of local-scale geomorphic processes and hazard management. This study of Baghmati river determines the sediment contributions of the Nepal Himalaya from the Lesser Himalaya (LH) (with crystalline rocks, high relief and low tectonic activity), and the Siwaliks (with soft rocks, low relief and intense tectonic activity). The sediment contributions from the two lithotectonic terrains through time were determined using: (i) geochemical tracers of optically dated alluvial sediments; (ii) an empirical model based on physical processes, and (iii) a decade long record of hydrological data downstream of the mountain front. The key results are: the low-relief (Siwaliks) terrain provides more sediment compared to the LH because of lithology and tectonics and implies that in tectonically active terrains, relief acts as a secondary control on sediment delivery. The contribution of the Siwaliks to the sediments in Himalayan rivers can be significant and should not be ignored.
dc.description.statementofresponsibility by Vikrant Jain, Robert Wasson, Malcolm McCulloch, Rahul K. Kaushal and Ashok K. Singhvi
dc.format.extent vol. 131, no. 1
dc.language.iso en_US en_US
dc.publisher Springer en_US
dc.subject Himalaya en_US
dc.subject India en_US
dc.subject Baghmati river en_US
dc.subject Sediment provenance en_US
dc.subject Siwaliks en_US
dc.title Controls on sediment provenance in the Baghmati river catchment, Central Himalaya, India en_US
dc.type Article en_US
dc.relation.journal Journal of Earth System Science

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