Thermoluminescence dating of sand dunes in Rajasthan, India

Singhvi, A. K.; Sharma, Y. P.; Agrawal, D. P.

doi:10.1038/295313a0

Cited by 235 publications

(94 citation statements)

References 5 publications

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“…3). The OSL ages of sand dunes in this study are fairly consistent with the results reported by Singhvi et al (1982), Chawla et al (1992), Juyal et al (2003), and Saini and Mujtaba (2010). Results show that dunebuilding activity in the Thar Desert had already started at ca.…”

Section: Resultssupporting

confidence: 82%

“…Since then, sand mobilization decreased because of the proliferation of moisture during 13-6 ka. Singhvi et al (1982) measured the ages of stabilized sand dunes in the southern margin of the Thar Desert, Rajasthan, using TL, considering the residual TL level. The ages of the greatest depth of sand dunes were indicated as 16,190 a and 20,280 a. Juyal et al (2003) used blue-green light-stimulated luminescence with the multiple aliquot protocol to measure aeolian deposits in the southern margin of the Thar Desert, eastern Gujarat.…”

Section: Introductionmentioning

confidence: 99%

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Quartz OSL dating of sand dunes in Ghaggar Basin, northwestern India

2012

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Several studies have used luminescence dating to investigate sand mobilization activity in extreme western areas and the southern margin of the Thar Desert, India. However, room exists for a chronology of sand profiles for the northern margins of the Thar Desert. The Ghaggar River flood plain at Rajasthan, northwestern India, in the northern margin of the Thar Desert, is bordered by sand dunes. Elucidation of the environmental changes of the Ghaggar Basin requires knowledge of many aspects of sand dune formation. We measured optically stimulated luminescence (OSL) using the single aliquot regenerative-dose (SAR) protocol for sand of eight palaeo-dunes and two flood silts of both sides of the present Ghaggar Basin and Chautang Basin flood plains. Their OSL ages were obtained respectively, as 15-10 ka or 5 ka, and 9-8 ka. Results of this study reinforce the hypothesis that sand dune deposition had started or had already been completed by 15-10 ka. Aeolian deposition was subdued by enhanced moisture during 9-8 ka. Our interpretation is that, at least since 5 ka, the scale of the flood plain of the Ghaggar River has remained equivalent to that of the present day.

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Section: Resultssupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Quartz OSL dating of sand dunes in Ghaggar Basin, northwestern India

2012

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“…The multiple-aliquot regeneration (MAR) method (Singhvi et al, 1982;Jain et al, 2003) was used on the 100-200 mm quartz fractions. All samples consisted of well-sorted fine to medium sand, composed of 480% quartz.…”

Section: Article In Pressmentioning

confidence: 99%

Severnaya Zemlya, Arctic Russia: a nucleation area for Kara Sea ice sheets during the Middle to Late Quaternary

Möller

Lubinski

Inǵólfsson

et al. 2006

Quaternary Science Reviews

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Quaternary glacial stratigraphy and relative sea-level changes reveal at least four expansions of the Kara Sea ice sheet over the Severnaya Zemlya Archipelago at 791N in the Russian Arctic, as indicated from tills interbedded with marine sediments, exposed in stratigraphic superposition, and from raised-beach sequences that occur at altitudes up to 140 m a.s.l. Chronologic control is provided by AMS 14 C, electron-spin resonance, green-stimulated luminescence, and aspartic-acid geochronology. Major glaciations followed by deglaciation and marine inundation occurred during MIS 10-9, MIS 8-7, MIS 6-5e and MIS 5d-3. The MIS 6-5e event, associated with the high marine limit, implies ice-sheet thickness of 42000 m only 200 km from the deep Arctic Ocean, consistent with published evidence of ice grounding at $1000 m water depth in the central Arctic Ocean. Till fabrics and glacial tectonics record repeated expansions of local ice caps exclusively, suggesting wet-based ice cap advance followed by cold-based regional ice-sheet expansion. Local ice caps over highland sites along the perimeter of the shallow Kara Sea, including the Byrranga Mountains, appear to have repeatedly fostered initiation of a large Kara Sea ice sheet, with exception of the Last Glacial Maximum (MIS 2), when Kara Sea ice did not impact Severnaya Zemlya and barely graced northernmost Taymyr Peninsula. r

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“…The equivalent dose was determined by the totalbleach method described by Singhvi et al (1982). All sample preparation was carried out under red light conditions with use Kaiser spectral 590 lamp.…”

Section: Dating Methodsmentioning

confidence: 99%

The results of thermoluminescence dating in the Halych IIC (Ukraine) profile as the expression of the conditions of mineral material deposition

et al. 2012

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Many studies conducted in the last few years in Poland indicate that the results of thermoluminescence dating of loess are reliable and correspond well to their geological ages. They can form the basis for determination of the chronology of changes of palaeoenvironmental conditions. In this paper we report dating results from the Halych IIC profile (Halych Prydnistrov'ja region, Ukraine). Thermoluminescence dating of this profile gives new information about the influence of local conditions on the results of TL analysis. As much as 75% of the obtained results are distinctly overestimated, even by several hundred per cent, that is untypical of regional loess profiles. However, in the Halych Prydnistrov'ja region it is the second loess site in which such incompatibility of the expected age and thermoluminescence age is found. This fact indicates how this region is unique among the loess areas of SE Poland and NW Ukraine in respect of the conditions of mineral material transport and deposition. Further investigations are necessary to identify the reasons for regular overestimating of the TL results obtained for loess deposits of the Halych Prydnistrov'ja region.

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Thermoluminescence dating of sand dunes in Rajasthan, India

Cited by 235 publications

References 5 publications

Quartz OSL dating of sand dunes in Ghaggar Basin, northwestern India

Quartz OSL dating of sand dunes in Ghaggar Basin, northwestern India

Severnaya Zemlya, Arctic Russia: a nucleation area for Kara Sea ice sheets during the Middle to Late Quaternary

The results of thermoluminescence dating in the Halych IIC (Ukraine) profile as the expression of the conditions of mineral material deposition

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