Journal
QUATERNARY RESEARCH
Volume 66, Issue 3, Pages 442-453Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1016/j.yqres.2006.05.008
Keywords
India; lakes; Holocene; pollens; dunes; palaeoclimate; events; Indus valley civilisation
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We present a comprehensive summary of the available palaeoclimate records from India and compare the results from different proxies. The results indicate (i) fluctuating lake levels during the early Holocene. The period of relatively higher lake levels from increased precipitation efficiency was reached only similar to 7.2-6.0 cal kyr BP, possibly due to increased contribution from winter rainfall; (ii) the onset of aridity in NW India could have begun as early as similar to 5.3 cal kyr BP. Subsequently, there were multiple wet events but of shorter duration and smaller magnitude than during the mid Holocene; (iii) there is evidence of several short term climate events in the proxy record. However, in the absence of a rigorous chronological framework a detailed regional correlation is not possible at this stage. Finally, a comparison between marine and terrestrial records indicates that episodes of strongest and weakest monsoon winds were not always associated with wettest and driest episodes respectively in the NW Indian lakes. (c) 2006 University of Washington. All rights reserved.
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