Stable isotope systematics of surface water bodies in the Himalayan and Trans-Himalayan (Kashmir) region

被引：6
作者：
Pande K. [1 ]
Padia J.T. [1 ]
Ramesh R. [1 ]
Sharma K.K. [2 ]
机构：
[1] Physical Research Laboratory
[2] Wadia Institute of Himalayan Geology
来源：
Journal of Earth System Science | 2000年 / 109卷 / 1期
关键词：
Altitude effect; Himalaya; Springs; Stable isotopes;
D O I：
10.1007/BF02719154
中图分类号：
学科分类号：
摘要：
Stable hydrogen (δD) and oxygen (δ18O) isotope ratios of the headwaters of the Indus and its tributaries, surface ice in glaciers, saline and fresh water lakes and thermal springs in the Himalayan and Trans-Himalayan (Kashmir) region are reported. The δD-δ18O relationship for the river samples shows a slope of 9.12 ± 0.29 which agrees well with the estimate of 8.99 ± 0.33 based on a simple Rayleigh fractionation model. The unique signature of a higher deuterium excess (d) of the 'Western Disturbance' is preserved in these samples. An altitude effect of -0.9 per mil/km is observed in the δ18O of Indus waters. At a lower altitude (Beas) the altitude effect is almost double, indicating that the altitude effect decreases with elevation in this region.
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页码：109 / 115
页数：6
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