Sedimentary records and luminescence chronology of Late Holocene palaeofloods in the Luni River, Thar Desert, northwest India

Kale, Vivek; Singhvi, A. K.; Mishra, Praveen K.; Banerjee, Debabrata

doi:10.1016/s0341-8162(00)00091-6

Cited by 103 publications

(60 citation statements)

References 12 publications

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“…25 yr. This latest arid phase is in agreement with the general trend of monsoon weakness observed elsewhere in the Indian subcontinent (Nigam and Khare, 1994;Kale, 1999a;Kale et al, 2000).…”

Section: Discussionsupporting

confidence: 89%

“…In dryland regions, rivers are among the important geomorphic agents and a river's fluvial dynamics, flood histories, water budget and sediment fluxes are determined by the climate. In conjunction with lacustrine and aeolian deposits, fluvial sequences provide great potential for a detailed palaeoenvironmental reconstruction in dryland areas (Reid, 1994;Reid and Frostick, 1997;Nanson and Tooth, 1999;Singhvi and Derbyshire, 1999;Juyal et al, 2000;Kale et al, 2000). Given the scenarios for anticipated global change, such palaeoenvironmental reconstructions are crucial for devising appropriate land use planning and adaptation strategies in arid zones.…”

Section: Introductionmentioning

confidence: 99%

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Luminescence chronology of late Holocene extreme hydrological events in the upper Penner River basin, South India

Thomas

Juyal

Kale

et al. 2007

J Quaternary Science

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Field stratigraphy, sedimentology and optically stimulated luminescence (OSL) dating have been used to reconstruct the southwest monsoon variability in the semi-arid region of southern India during the late Holocene. Facies architecture and OSL dating of the water-lain sediment suggest prevalence of a weak hydrological regime around 3 ka. Following this, a progressive strengthening of monsoon occurred till 2 ka. After 2 ka and until 1 ka fluvial activity was nearly dormant, indicating weakening of the monsoon. Presence of high-magnitude flood deposits, overbank sedimentation and pedogenesis during 1-0.6 ka indicate intensification of the southwest monsoon in the basin. The onset of aridity was associated with episodic storm surge events that are manifested in the pond sedimentation and localised aeolian accretion. This phase is bracketed between 0.5 ka and 0.2 ka. A renewed phase of monsoonal activity was observed in the form of floodplain aggradation between 180 and 90 years ago. In the past 70 years no significant change in the monsoon performance has been observed.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Luminescence chronology of late Holocene extreme hydrological events in the upper Penner River basin, South India

Thomas

Juyal

Kale

et al. 2007

J Quaternary Science

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“…Ganges) and fluvial systems (e.g. Luni River) in India have been studied in the past using luminescence dating method (Kale et al, 2000;Srivastava et al, 2003a, b;Juyal et al, 2000Juyal et al, , 2006Jain et al, 2005;Thomas et al, 2005;Chandra et al, 2007;Sinha et al, 2007;Gibling et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Chronology of Cauvery Delta Sediments from Shallow Subsurface Cores Using Elevated-Temperature Post-IR IRSL Dating of Feldspar

et al. 2010

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Abstract:We present the results of luminescence dating of sediments from two cores from the Cauvery Delta in south-east India. Since all natural quartz OSL signals except one sample were in saturation, the elevated temperature post-IR IRSL protocol for K-feldspar was applied to establish a chronology. Internal dose rates of K-feldspar grains were calculated from the measured internal content of potassium, uranium, thorium and rubidium in the bulk of K-feldspar grains using solution ICP-OES and ICP-MS analysis. A substantial scatter in single-aliquot D e values was observed which is most probably due to the effect of incomplete bleaching of fluvial sediments before burial. A minimum age model was applied to extract possible depositional ages. The study revealed that except an upper layer of Holocene sediments (< 5m), the majority of the upper ~50m of Cauvery delta sediments were deposited between marine isotope stage MIS-5 and MIS-10 or older. The feldspar luminescence ages also indicate the existence of a period of non deposition or erosion in the upper part of the cores.

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“…Deposition occurs in areas like backflooded tributaries, eddy zones or along the irregularities in the channel margin (Baker et al, 1988). A typical SWDs corresponding to one flood event would constitute the bottom sand followed by silt and invariably capped by clay drape (Kale et al, 2000;Kale et al, 2003). The vertical stacking of such units would imply that each flood event was higher than the preceding one.…”

Section: Introductionmentioning

confidence: 99%

Residual Luminescence in Quartz from Slack Water Deposits in Kaveri Basin, South India: A Single Aliquot Approach

Jaiswal¹,

Chen²,

Kale³

et al. 2009

Geochronometria

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Abstract:Optical bleaching of quartz may be incomplete due to decreased daylight intensity and narrower wavelength spectrum in water column, leading to age overestimation in young fluvial sediments. This hypothesis was tested on a low energy slack water deposits from Kaveri Basin in south India using the SAR protocol. Various tests suggest successful application of SAR on quartz from the study area despite low sensitivity and few numbers of bright grains. Partial bleaching can be ruled out if using SAR on small aliquots. The results suggest a uniform residual luminescence and a common sedimentary condition in this area. Due to partial bleaching, the lowest values of palaeodoses should be considered in preference to the average values.

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Sedimentary records and luminescence chronology of Late Holocene palaeofloods in the Luni River, Thar Desert, northwest India

Cited by 103 publications

References 12 publications

Luminescence chronology of late Holocene extreme hydrological events in the upper Penner River basin, South India

Luminescence chronology of late Holocene extreme hydrological events in the upper Penner River basin, South India

Chronology of Cauvery Delta Sediments from Shallow Subsurface Cores Using Elevated-Temperature Post-IR IRSL Dating of Feldspar

Residual Luminescence in Quartz from Slack Water Deposits in Kaveri Basin, South India: A Single Aliquot Approach

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