氢氧同位素组成对阜新煤矿区矿井水来源的解释  

Explain about the source of mine water by oxygen and hydrogen isotope composition in Fuxin coalmine area

作　　者：刘俊杰[1] 赵峰 王大国[1] 

机构地区：[1]大连大学建筑工程学院,辽宁大连116622 [2]阜新露源水业集团有限责任公司,辽宁阜新123000

出　　处：《煤炭学报》2009年第1期39-43,共5页Journal of China Coal Society

基　　金：辽宁省教育厅科学研究基金(A类)示范市服务计划(2004B004)

摘　　要：为确定阜新煤矿区矿井水来源,2007年2月份(冬季)、5—6月份(春、夏季)先后2次采样测定了阜新煤矿区不同类的自然水体(雨水、河水和矿井水)的氢氧同位素(δD,1δ8O)值,得到了当地大气降水线和矿井水的δD-1δ8O组成关系.通过与全球、中国东部和黄河三角洲地区大气降水的雨水线方程对比,结果表明:①前后2次采样测定的δD,1δ8O值几无差异,显示各类水中δD-1δ8O组成稳定,不受季节、时间和分布区域影响的特征,说明阜新煤矿区水源单一,河水及地下水/矿井水来源即为大气降水;②阜新煤矿区水体的δD-1δ8O组成关系偏离Craig线,呈轻微的正向漂移,相关性不明显,这种情况往往出现在干燥气候下或封闭的盆地中,较强的蒸发作用是导致样品δD-1δ8O关系偏离正常雨水线的主要原因,该结论非常符合阜新煤矿区的半干旱气候特征和内陆盆地地理特征;③采动裂隙网络构造了大气降水与矿井水之间直接的水力联系,有利于当地大气降水的δD-1δ8O组成关系保持稳定,并使矿井水的δD-1δ8O组成关系与之相当.In order to confirm the sources of mine water in Fuxin coal mining area, the δD and δ^18O values in different types of natural water in the area, including meteoric water, river water and mine water, were collected in February （winter） and May--June （spring-summer） of 2007, and the meteoric water line and the δD-δ^18O relationship were obtained. Comparison with the global, Eastern China and Yellow River Delta precipitation line equa- tion, it is shown that ： （1） The δD andδ^18O values in different types of water are very stable and are not affected by seasons, times and distributive areas, which shows that meteoric water is the only source of river water, ground water and mine water; （2） There is slightly positive shift and no obvious correlation between the δD-δ^18O relationship curves and the Craig line, which mainly results from the stronger effect of evaporation and is in good agreement with semi-arid climate and inland basin geographic characters of Fuxin coal mining area; （3） The direct waterpower relation between meteoric water and mine water is generated by the induced fracture of mining, which the δD-δ^18O of meteoric water hold stable relationship and can make the δD-δ^18O of mine water have the same relationship with that of the meteoric water.

关 键 词：氢氧同位素 阜新煤矿区 矿井水 蒸发作用 

分 类 号：TD745.21[矿业工程—矿井通风与安全]