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Bajpai, R./ Singh, C.P./ Shukla, P./ Upreti, D.K. 2016: Preliminary lichenometric studies in Eastern and North-Western Himalaya. - Journal of the Geological Society of India 87(5): 535-538. [RLL List # 244 / Rec.# 38160]
Abstract: Lichenometry is an extremely useful technique in dating moraine ridge and recent glacier retreat in polar and alpine regions. The study relates the size of the lichen thallus to the minimum age of the exposure of the surface on which it grows which consequently helps in assessment of the age of the boulders. The Lichenometric studies are carried out in Kupup and Thangu area of eastern Himalaya in Sikkim and Thajiwas glacier in Ganderbal district of north western Himalaya of Jammu and Kashmir with the help of diameters of a common crustose lichen Rhizocarpon geographicum growing luxuriantly on exposed boulder. The Thajiwas glacier showed retreat of 200 m in 279 years while in Thangu and Kupup area of eastern Himalaya the retreat was estimated as 200 m in 100 and 91 years respectively. The rate of retreat was slightly more faster in eastern Himalayan (20 mm/century) than the north-western Himalaya region (18.5mm/century).
URL: http://link.springer.com/article/10.1007/s12594-016-0427-4
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