| 四川牟尼沟水体的同位素地球化学特征 |
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| 关键词:Munigou water circulating system isotope deuterium excess parameters (d-excess) |
| 基金项目:四川省黄龙国家风景名胜管理局研究 |
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| Isotopic Geochemical Characteristics of Water Bodies in Munigou, Sichuan Province |
| Munigou is a part of the Huanglong-Jiuzhaigou national scenic spot in northern Sichuan Province. Based on analyzing the data of δD,δ 18O,tritium contents, deuterium excess parameters (d-excess) and element chemical compostion by the isotope geochemical technique of natural water, the authors discuss the recharge, runoff, discharge and the hydraulic relationship between the precipitation, terrain surface water, groundwater and main springs in Munigou area. The Pearl Spring and the Jadeite Spring are major spring resources in this spot. The Pearl spring is a hot spring recharged by the precipitation derived from an elevation of over 3 700 m. A part of precipitation infiltrates underground and returns to the earth's surface after it exchanges quantities of heat with deep hot fluids. The Pearl spring can therefore be exploited as a hot spring. The Jadeite spring is a typical acidic karst water cold spring. The velocity of water flow in the aquifer of the Jadeite spring is slower than that of the Pearl spring and the water has longer detained time. The spring water has a good quality and an important economic value as natural mineral water. The runoff in Munigou is mostly recharged by precipitation and shallow groundwater. This recharge shows seasonal variation and plays an important role in maintaining the landscape of the scenic spot. The problems discussed in this paper have far-reaching significance in the evaluation of the exploitation potential of the Pearl Spring and the Jadeite Spring and also in the protection and sustainable development of the precious natural resources in Munigou area. |
| LI Hong-ye,YIN Guan,YANG Jun-yi,FAN Xiao.2003.Isotopic Geochemical Characteristics of Water Bodies in Munigou, Sichuan Province[J].Acta Geoscientica Sinica,24(6):529-534. |
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