Multi-Proxy Records of Late Holocene Flood Events From the Lower Reaches of the Narmada River, Western India

摘要: Analyses of a fluvial sedimentary sequence from the lower reaches Narmada River establish record rhythmic cycles sediment facies that represent floods during late Holocene. The south-west Indian monsoon strongly influences study area, and heavy rainfall or cyclones which originate either Bay Bengal Arabian Sea, also affect region. Optically stimulated luminescence dating places 8 m thick in climate transition phase ranges Medieval Warm Period to Little Ice Age. Multi-proxy analyses including high-resolution granulometry, magnetic susceptibility, ferromagnetic mineral concentration, major oxide geochemistry, micro-fossil records (from two units) are used these Holocene flood events. latter characterized by multiple facies, depositional events, changes channel morphology, distinctive signatures. Integration enables identify distinct aggradations viz. I II, as well relative change morphology. describes eleven flooding events their imprints over multi-proxy records. Historic documents instrumental town Bharuch referring floods, movement sand, shallowing, dysfunction ancient port further validate inferences drawn sequence. exemplifies need use high resolution studies interpret paleoflood signatures order build archives monsoonal rivers.