Geochemical and Sr–Nd isotopic variations in palaeoflood deposits at mainstem–tributary junction, western India: Implications on late Holocene flood events

Sridhar, Alpa; Bhushan, Ravi; Balaji, D.; Band, Shraddha; Chamyal, L. S.

doi:10.1016/j.catena.2015.12.004

Cited by 8 publications

(8 citation statements)

References 55 publications

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“…Slackwater deposits have been reported from the alluvial reaches of the mainland Gujarat rivers (Fig. 1b) (Sridhar, 2007a(Sridhar, , 2009Sridhar et al, 2014Sridhar et al, , 2016 where large magnitude flood events were observed to cluster at climatic transitions or periods of aridity during the mid-late Holocene Period (Sridhar & Chamyal, 2018). The palaeoflood records from the Himalayan rivers have suggested that changes of flood frequency were caused by variations of monsoon rainfall and large floods occurred during warm and wet climatic phases which may or may not be related to the glacial lake outbursts/ landslide lake outbursts (Wasson et al, 2013;Srivastava et al, 2017;Sharma et al, 2017Sharma et al, , 2021.…”

Section: Palaeoflood Studies In Indiamentioning

confidence: 98%

“…It is well established that the continental fluvial records of western India signify the role of monsoon variability during the late Pleistocene-Holocene (Juyal et al, 2006). Since alluvial sedimentary records are the archives of river response to periods of higher and lower discharge, palaeohydrological interpretations concerned with the reconstruction of pastriver flows, average flows of low to moderate magnitude and frequency, or infrequent high magnitude events have been attempted in past decade or so (Sridhar, 2007a, b;Sridhar & Chamyal, 2010, 2018Sridhar et al, 2013Sridhar et al, , 2014Sridhar et al, , 2015Sridhar et al, , 2016.…”

Section: Fluvial Records Of Western Indiamentioning

confidence: 99%

“…The slackwater flood deposits (SWDs) are vertically stacked sequences occurring at peculiar geomorphic sites where flow velocity decreases and form an important natural Table 2-Palaeoflood characteristics of important sites in the alluvial reach (modified after Sridhar, 2007a;Sridhar et al, 2014Sridhar et al, , 2016. Kale, 2008).…”

Section: Slackwater Palaeoflood Depositsmentioning

confidence: 99%

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Palaeoflood hydrology of the fluvial continental records of western India: A synthesis

Chamyal

Sridhar

2021

JPS

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Palaeoflood hydrology has emerged as an important tool to infer quantitative and qualitative aspects of ungauged floods based on their physical evidence. Palaeoflood studies in India have largely been undertaken in the rivers of Peninsular India, western India, Ganga plains and the Himalayas to determine the magnitude and age of extreme floods and their connection to variations in the monsoon intensity. Usually, the alluvial domains are unfavourable for the occurrence and preservation of flood deposits and related discharge estimation. However, the alluvial rivers of western India owing to their semi–confined banks comprising late Pleistocene sediments provide an opportunity for investigating both, the high magnitude flood events as well as average flow conditions. In this synthesis we concisely review the recent palaeohydrological studies in western India in terms of flood magnitude, occurrence of extreme events and its relation to the southwest monsoon variability over various time scales. Based on palaeo–fluvial reconstructions, the sedimentation pattern during late Pleistocene appears to be related to changes in channel gradient and the water surface width rather than to discharge variability. On the other hand, the aggradation in channels during early Holocene was largely controlled by the huge sediment influx and the incision that followed was in response to the increase in the discharge and competence of the river flow. The slackwater records from the bedrock channels have revealed that the large magnitude flood events occurred during wet climate phases during the last two millennia. A clustering of high magnitude events at climatic transitions and arid periods during mid–late Holocene has been surmised. Further the flood associated deposits delimited within Quaternary fluvial landforms and channel morphology are vital as these allow quantification of past flood discharges, velocities and stage levels and thus improve the future flood predictions.

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Section: Palaeoflood Studies In Indiamentioning

confidence: 98%

Section: Fluvial Records Of Western Indiamentioning

confidence: 99%

Section: Slackwater Palaeoflood Depositsmentioning

confidence: 99%

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Palaeoflood hydrology of the fluvial continental records of western India: A synthesis

Chamyal

Sridhar

2021

JPS

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“…In last few years, considerable progress has been made towards Quaternary terrestrial sedimentation and palaeoclimatic reconstruction (Raj et al, 2015;Sridhar et al, 2016;Sridhar and Chamyal, 2018;Khonde et al, 2017a, b;Prizomwala et al, 2018). Contribution have also been made on calcrete profilling (Srivastava and Basand, 2019), palaeosol geochemistry and nature, occurrence, lithological and depositional set-up of Youngest Toba Tuff (YRR) ash (Srivastava and Singh, 2019b) that are preserved in Quaternary alluvial sediments of Purna basin, Central India.…”

Section: Quaternary Sedimentation and Palaeoclimaticre Constructionmentioning

confidence: 99%

“…Khonde et al (2017b) indicated that the lost Saraswati River mentioned in the ancient Indian tradition is postulated to have flown independently of the Indus River into the Arabian Sea, perhaps along courses of now-defunct rivers such as Ghaggar, Hakra and Nara. Sridhar et al (2016) documented the record of the Little Ice Age based on the temporal variations in the major and trace elements and the Sr and Nd isotopic composition of the silicate component of palaeoflood deposits. Their study demonstrates that the geochemical signatures of the flood sediment are largely controlled by the weathering intensity in the catchments, the river discharge and mineral sorting.…”

Section: Quaternary Sedimentation and Palaeoclimaticre Constructionmentioning

confidence: 99%

Marine and Fluvial Sedimentation Including Erosion and Sediment Flux in Peninsular Indian Phanerozoic Basins

Banerjee¹,

Ghosh²,

Nagendra³

et al. 2020

PINSA

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This review presents a brief appraisal of the present understanding regarding marine and fluvial sedimentation in peninsular India in the background of global tectono-thermal events and relative sea level changes during the Phanerozoic. Sedimentary basins hosting the Phanerozoic deposits of peninsular India can be broadly categorized into two viz. Gondwana related half grabensand Meso-Cenozoic passive margins. Recent investigations document marine incursions in the former category of basins based on careful analysis of trace fossil assemblage and tide-and wave-originated sedimentary structures. The study of continental carbonates in the Upper Gondwana reveals widespread microbially mediated carbonate formation in freshwater systems, while the mud-dominated fluvial deposits in these basins show unique characteristics of the channel to overbank sediment transfer, related to a balance between sediment flux and erosion.The application of sequence stratigraphy provides a high-resolution analysis of passive continental margin sedimentary succession in Kutch, Cauvery and Jaisalmer basins. The origin of authigenic minerals has been integrated with the sequence stratigraphic framework in several Mesozoic and Cenozoic basins. A thorough biostratigraphic investigation reveals different order of sea-level cycles in the sedimentary deposits of Cauvery and Kutch basins and hyperthermal events in the Cenozoic of Kutch. Distinct ichnological assemblages characterize the transgressive and regressive deposits in Kutch and Jaisalmer basins. Quaternary terrestrial sedimentary records provide a high-resolution palaeoclimatic reconstruction.

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Indicators of Holocene high-stage flood events and tributary confluence migration in the lower Narmada Basin, western India

2022

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Geochemical and Sr–Nd isotopic variations in palaeoflood deposits at mainstem–tributary junction, western India: Implications on late Holocene flood events

Cited by 8 publications

References 55 publications

Palaeoflood hydrology of the fluvial continental records of western India: A synthesis

Palaeoflood hydrology of the fluvial continental records of western India: A synthesis

Marine and Fluvial Sedimentation Including Erosion and Sediment Flux in Peninsular Indian Phanerozoic Basins

Indicators of Holocene high-stage flood events and tributary confluence migration in the lower Narmada Basin, western India

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