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Mid-late Holocene monsoonal variations from mainland Gujarat, India : A multi-proxy study for evaluating climate culture relationship

Prasad, V and Farooqui, A and Sharma, A and Phartiyal, B and Chakraborty, S and Bhandari, S and Raj, R and Singh, A (2014) Mid-late Holocene monsoonal variations from mainland Gujarat, India : A multi-proxy study for evaluating climate culture relationship. Palaeogeography, Palaeoclimatology, Palaeoecology, 397. pp. 38-51.

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Abstract

A multi-proxy study involving palynology, phytoliths, sedimentology, clay mineralogy, carbon isotopes and magnetic mineralogy was carried out on Wadhwana Lake sediments from sub-humid zone of mainland Gujarat to determine the mid-Holocene climatic fluctuations, and its possible impact on the Harappan culture. The 1.03 m sediment profile of Wadhwana Lake shows five paleoclimatic phases. The study reveals high lake stand during Phase I (~ 7500–5560 cal yr BP). A considerable cool and moist climatic condition during Phase I is inferred due to the presence of pollen belonging to wet evergreen taxa and high phytolith climatic index ‘Ic’. Later part of Phase I show gradual replacement of evergreen to deciduous pollen taxa, decrease in Ic value and dominance of smectite over kaolinite, indicating a reduction in wet climatic condition due to decline in the precipitation and prevalence of seasonally dry climate.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 10 Aug 2015 06:52
Last Modified: 10 Aug 2015 06:52
URI: http://moeseprints.incois.gov.in/id/eprint/2785

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