| 四川牟尼沟水体的同位素地球化学特征 |
| 点此下载全文 |
| 引用本文：李宏业,尹观,杨俊义,范晓.2005.四川牟尼沟水体的同位素地球化学特征[J].地球学报,26(3):255-258. |
| DOI：10.3975/cagsb.2005.03.10 |
| 摘要点击次数: 2765 |
| 全文下载次数: 2201 |
|
| 基金项目:四川黄龙国家风景名胜管理局研究项目 |
|
| 中文摘要:运用同位素地球化学的方法，对牟尼沟各水体中的δD、δ^18O、T值、氘过量参数(d)和元素化学分析数据进行研究，基本查明牟尼沟内大气降水、地表水、地下水以及主要泉水之间的循环和补、径、排关系。珍珠泉和翡翠泉为沟内出露的主要泉水：二道海沟珍珠泉系地下深循环热水的露头，是由补给高度在3700m以上的大气降水渗入地下，再通过深大断裂循环至地下深部，与深部热流进行热交换后，返回地表出露。作为天然温泉开发具有较大的潜力；矿泉水厂沟的翡翠泉是典型的酸性岩溶冷泉，含水层水的径流较珍珠泉慢且滞留时间相对长些，含有一定的CO2，系一深部含水层地下水的露头。它源自补给高度全区最高(3800m以上)的大气降水。泉水流量大而且稳定，水质好，作为矿泉饮用水开发具有重要的经济价值；沟内大多数地表径流来源于大气降水和浅层地下水补给，夏季以大气降水为主，冬季浅层地下水补入到地表径流中的比例相对增加。这种对地表径流的调节作用，对于保持风景区内的景观具有重要作用。 |
| 中文关键词:牟尼沟 水循环系统 同位素 氘过量参数（d） |
| |
| Isotopic Hydrogeochemical Characteristics of Water Bodies in Munigou, Sichuan |
|
|
| Abstract:Munigou is a part of Huanglong-Jiuzhaigou national scenic spot in northern Sichuan Province. Isotope geochemical technique of natural water was used to analyze the data of δD, δ18O and tritium contents, deuterium excess parameters (d-excess) and (element) chemical compositions. On such a basis, the authors discuss the recharge, runoff, discharge and hydraulic relationship between the meteoric water, terrain surface water, groundwater and main springs in the 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 meteoric water derived from an elevation of more than 3 700 m. A part of meteoric water infiltrates underground and returns to the earth′s surface after it exchanges quantities of heat with deep hot fluids. So the Pearl Spring can be exploited as a hot spring. The Jadeite Spring is a typical acidic karst water cold spring. The flow velocity of the water in the Jadeite Spring aquifer is slower than that in the Pearl spring, and its water hence has relatively long detained time. The spring water, as natural mineral water, has a good quality and important economic value. Most of runoff in Munigou is recharged by meteoric water and shallow groundwater. This recharge shows seasonal variation and is important in keeping 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 are important in protecting and developing the precious natural resources in Munigou area. The results obtained can also serve as reference materials for similar researches. |
| keywords:Munigou water circulatory system isotope deuterium excess parameters (d-excess) |
| 查看全文 查看/发表评论 下载PDF阅读器 |
