| 郑长金,李磊,屈晓明,贾乾明.基于硫同位素的陈家河、尖岩河地表水与地下水转化关系[J].矿产勘查,2024,15(S2):171-178 |
| 基于硫同位素的陈家河、尖岩河地表水与地下水转化关系 |
| Transformation relationship between surface water and groundwater in Chenjiahe and Jianyan rivers based on sulfur isotope |
| 投稿时间：2024-07-24 |
| DOI：10.20008/j.kckc.2024s2023 |
| 中文关键词: 地表水 地下水 硫同位素 陈家河 尖岩河 |
| 英文关键词: surface water groundwater sulfur isotope Chenjia River Jianyan River |
| 基金项目: |
|
| 摘要点击次数: 2 |
| 全文下载次数: 0 |
| 中文摘要: |
| 2017年，松宜矿区内各煤矿均已陆续停产闭坑。在煤矿的长期开采过程中，山体内部形成了大面积采空区，严重破坏了区内原始水文、工程、环境地质条件，致使在现有地质条件中产生了一系列新的环境问题。本研究通过分析陈家河，尖岩河地表水与地下水硫同位素组成特征及分布规律，探讨不同水体之间的补给关系。结果表明:(1)陈家河，尖岩河水体 δ34S值较大，均偏正，表现为大气沉降来源，显示出该区域水体主要由大气降水补给。(2)地下水的 δ34S值相对偏负，表明地下水来源与含煤地层发生过充分的水 -岩相互作用或者受含煤地层所在含水系统的地下水混合影响。(3)干流的岩溶水表现出与矿洞排放的酸性废水相近的性质，例如 SZ04～06地下水样品均具有较低的 δ34S值，说明地下水与含水介质中的煤层或硫铁矿发生了水 -岩相互作用。(4)陈家河干流下游主要受酸性废水影响，尖岩河地表水主要受矿洞排水与岩溶地下水的影响，而大气降水对尖岩河水体的整体影响较小。 |
| 英文摘要: |
| In 2017，all coal mines in the Songyi mining area have been gradually shut down and closed. Dur. ing the long-term mining process of coal mines，a large area of goaf was formed inside the mountain，which seri. ously damaged the original hydrological，engineering and environmental geological conditions in the area，resulting in a series of new environmental problems in the existing geological conditions. In this study，the characteristics and distribution of sulfur isotope composition of surface water and groundwater in Chenjia River and Jianyan River were analyzed to explore the recharge relationship between different water bodies. The results show that:(1) Chenjia River and Jianyan River water bodies δ34S numerical value is large and positive，which is the source of atmospheric sedimentation，indicating that the water in this area is mainly supplied by atmospheric precipitation.(2)Groundwater δ34S numerical value is relatively negative，indicating that the groundwater source and the coal-bearing strata have had sufficient water-rock interaction or are affected by the mixing of groundwater in the water-bearing system where the coal-bearing strata are located.(3)The karst water in the main stream shows similar properties to the acid wastewater discharged from the mine，for example，the SZ04～06 groundwater sample has a low δ34S numerical value，indicating that water-rock interaction occurred between groundwater and coal seams or pyrite in water-bearing medium.(4)The downstream of the main stream of Chenjia River is mainly affected by acid wastewater，and the surface water of Jianyan River is mainly affected by mine drainage and karst groundwater， while the overall impact of atmospheric precipitation on the water body of Jianyan River is small. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |