氢氧同位素对淮南潘集矿区地下水的指示作用
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摘要
地下水是淮南潘集矿区的重要水源,为了查清淮南潘集矿区各含水层组相互关系,分别在孔隙、裂隙含水层组中相应的长观孔、水源井及井下出水点取水样测试氢氧同位素。结合淮北平原现代水和古水分界线,利用氢氧同位素针对性地分析孔隙水和裂隙水受采煤活动的影响。分析结果表明:天然状态下,潘集矿区深部水、煤系水、太灰水和奥灰水都属于古水;在开采影响下,开采区域深部水接受浅部水和地表水补给,部分煤系水接受上覆现代水补给;潘集矿区新生界浅部水和奥灰水发生了δ~(18)O漂移,潘北矿存在明显的δD漂移。
Groundwater is an important water resource in Huainan Panji mine area. In order to find out the relationship of aquifers in Panji mine area, samples from the observation wells, water wells and inrush water in the mine corresponding to the pore and fracture aquifers were taken to determine the hydrogen and oxygen isotope. Combining the boundary of modern water and ancient water in Huaibei plain, the pore water and fracture water influenced by coal mining were analyzed. The analysis results show that deep water, coal measure water, Taiyuan formation limestone water and Ordovician limestone water belong to ancient water in the natural state; deep water accepts shallow water and surface water supplies under the influence of mining, and part of coal measure water accepts the modern water supply; δ~(18)O of Cenozoic shallow water and Ordovician limestone water in Panji mine area has shifted, δD of Taiyuan formation limestone water of Panbei mine has shifted.
Groundwater is an important water resource in Huainan Panji mine area. In order to find out the relationship of aquifers in Panji mine area, samples from the observation wells, water wells and inrush water in the mine corresponding to the pore and fracture aquifers were taken to determine the hydrogen and oxygen isotope. Combining the boundary of modern water and ancient water in Huaibei plain, the pore water and fracture water influenced by coal mining were analyzed. The analysis results show that deep water, coal measure water, Taiyuan formation limestone water and Ordovician limestone water belong to ancient water in the natural state; deep water accepts shallow water and surface water supplies under the influence of mining, and part of coal measure water accepts the modern water supply; δ~(18)O of Cenozoic shallow water and Ordovician limestone water in Panji mine area has shifted, δD of Taiyuan formation limestone water of Panbei mine has shifted.
引文
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[16] 淮南矿区三下一上采煤试验研究成果汇编编委会.淮南矿区水体下采煤试验研究成果汇编[M].北京:煤炭工业出版社,2002:380.
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[2] CRAIG H.Isotopic variations in meteoric waters[J].Science,1961,133:1702-1703.
[3] CLARK I D,FRITZ P.水文地质学中的环境同位素[M].张慧,张新基,译.郑州:黄河水利出版社,2006:28.
[4] 聂振龙,陈宗宇,申建梅,等.应用环境同位素方法研究黑河源区水文循环特征[J].地理与地理信息科学,2005,21(1):104-108.
[5] 文冬光.用环境同位素论区域地下水资源属性[J].地球科学,2002,27(2):141-147.
[6] 薛忠歧,余秋生,于艳青,等.银川平原地下水同位素特征分析[J].合肥工业大学学报(自然科学版),2006,29(5):591-596.
[7] 陈陆望,桂和荣,许光泉,等.皖北矿区煤层底板岩溶水氢氧稳定同位素特征[J].合肥工业大学学报(自然科学版),2003,26(3):374-378.
[8] 桂和荣,陈陆望.皖北矿区深部地下水环境同位素混合模式研究[J].煤炭科学技术,2005,33(9):68-71.
[9] 卞惠瑛,王双明,杨泽元,等.固市凹陷地下热水水动力条件分析[J].煤田地质与勘探,2014(3):50-54.
[10] 王坤,王东升.应用环境同位素研究地热水起源和补给机制[J].地质论评,2002,48(增刊1):203-209.
[11] 周小平,张春雷,马济国,等.淮南巨厚新生界多含水层组地下水系统特征[J].合肥工业大学学报(自然科学版),2016,39(12):1693-1697.
[12] 葛涛,储婷婷,刘桂建,等.淮南煤田潘谢矿区深层地下水氢氧同位素特征分析[J].中国科学技术大学学报,2014,44(2):112-118.
[13] 彭玉怀,陈伟.安徽省淮北平原地下水环境演变调查评价报告[R].合肥:安徽省地质调查院,2010.
[14] DANSGAARD W.Stable isotopes in precipitation[J].Tellus,1964,16(4):436-468.
[15] 蒋先淑.贵州纳朵洞洞穴系统氢氧同位素运移特征研究[D].重庆:西南大学,2016.
[16] 淮南矿区三下一上采煤试验研究成果汇编编委会.淮南矿区水体下采煤试验研究成果汇编[M].北京:煤炭工业出版社,2002:380.
[17] 许光泉,朱代双,喻希乐,等.潘北矿-580 m水平出水点H2S成因分析及处理试验[J].煤田地质与勘探,2014(6):59-63.