深层地下水氢氧稳定同位素组成与水循环示踪  

Composing characteristic of hydrogen and oxygen stable isotopes and tracing of hydrological cycle

作　　者：陈陆望[1] 桂和荣[2] 殷晓曦[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009 [2]宿州学院地理科学与环境科学系

出　　处：《煤炭学报》2008年第10期1107-1111,共5页Journal of China Coal Society

基　　金：安徽省自然科学基金资助项目(070414168)

摘　　要：利用任楼井田及所在临涣矿区地表水与生产矿井的长观孔、矿井出水点,从上而下分别取第四系第四含水层、二叠系煤系砂岩含水层、石炭系太原组岩溶含水层及奥陶系岩溶含水层30个水样,测试δD与δ18O,分析D与18O组成并对含水层水循环进行示踪.研究表明:临涣矿区深部地下水样点δ值在δD-1δ8O关系图上绝大部分均落在中国大气降水线和矿区地表水线下部,大气降水或地表水为各类含水层的补给主体.任楼井田煤炭采动影响第四系第四含水层明显,地表水补给第四系第四含水层速度快;临涣矿区的临涣、海孜与童亭四含水与大气降水未构成良好的水力联系.煤系砂岩地下水就整个临涣矿区来说,任楼井田埋藏相对较新.石炭系太原组岩溶含水层及奥陶系岩溶含水层在临涣矿区地下水径流速度相对较快,18O或D漂移不明显.Through surface water and the long-observation bores and mine streaming water in Renlou Colliery and local Linhuan coal district, 30 samples belonging to the fourth aquifer of the Quarternary, the coal and sandstone aquifer, the Taiyuan limestone aquifer and the Ordovician limestone aquifer from the top down were gained and tested δD and δ^18O of groundwater. With those samples, composing characteristic of hydrogen and oxygen stable iso- topes and tracing of hydrological cycle were analyzed. Research results show that the deep groundwater δ values of Linhuan coal district are mostly below precipitation line of China and surface water line of the coal district and precipitation and surface water is major replenishment of these aquifers, and mining influences the fourth aquifer of the Quarternary distinctly in Renlou, so that surface water supplies the aquifer rapidly. Groundwater and precipitation don＇ t form nicer hydraulic contact in the fourth aquifer of Linhuan, Haizi and Tongting. The groundwater of coal and sandstone aquifer in Renlou is youthy in total Linhuan coal district, and the groundwater of Taiyuan limestone aquifer and Ordovician limestone aquifer flows rapidly and ^18O or D excursion is inapparent.

关 键 词：深层地下水 氢氧稳定同位素 水循环 示踪 含水层 

分 类 号：P597[天文地球—地球化学]