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A. Bhattacharyya P. S. Ranhotra J. T. Gergan 《Journal of the Geological Society of India》2011,77(5):401-408
Palynological analysis from a 10 m deep sediment profile from Dokriani valley, Garhwal Himalaya, provides temporal variation
of vegetation vis-à-vis climate and glacier history of the region. This study reveals that between 12,406 and 10,633 cal yr
BP vegetation was sparse when the climate was cool-dry and the glacier snout might had been located at lower elevations in
comparison to its present position. Subsequently around 10,633 cal yr BP, an increase in the growth of diversified taxa close
to the site, indicates the early Holocene climatic amelioration when glacier might have retreated at faster rate. Further,
within Holocene some intermittent cool-dry episodes were recorded around 9,670 to 9,000 cal yr BP and 7,100 cal yr BP when
glacier might have shown reduction in retreat rate or came to stagnation. 相似文献
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The Spiti basin together with the Zanskar basin forms the largest basin among the Tethyan Himalayan successions and forms one of the best-developed sec-tions in the Tethyan Tibetan belt. The basin is one of the classical areas, which depicts a continuous fos-siliferous Palaeozoic - Mesozoic successions. The present studies are focused on the Ordovician and Si-lurian successions of the Pin valley of the Spiti basin. Pin valley exposes richly fossiliferous lithological successions from Neoproterozoic to Cretaceous; therefore, it is an ideal section for the detail paleobi-ological and geological studies. 相似文献
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