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DOI:
有色金属(矿山部分):2021,73(3):88-97
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冀中坳陷典型地热田前缘晕元素特征及对其地热学意义
苏 航 ,陈功新1,邢林啸2,孙占学1,岑 丽1,陈诗峰1
((1.东华理工大学 水资源与环境工程学院,南昌330013; 2.中国地质调查局水文地质环境地质研究所,石家庄050061))
The characteristics of the front halo elements of typical geothermal fields in Jizhong Depression and their geothermal significance
SU Hang1 , CHEN Gongxin1, XING Linxiao2, SUN Zhanxue1, CEN Li1 , CHEN Shifeng1
((1. East China Institute of Technology, School of Water Resources & Environmental Engineering, Nanchang 330013, China; 2. Institute of Hydrogeology and Environment Geology, Chinese Academy of Geological Science, Shijiazhuang 050061, China))
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投稿时间:2020-12-14    修订日期:2020-12-24
中文摘要: As、Sb、Bi、Li、Be、Rb、Hg等前缘晕元素可作为地热田勘探的重要指标。本文基于冀中坳陷北部典型地热田深层土壤样品检测数据,计算了背景值与异常下限以及相关性系数,绘制了长剖面图与平面等值线图,同时利用归一化方法绘制了元素叠加等值线图,并对照元素异常位置得到元素分布特征为“南部地热田高,北部凸起区、中部凹陷处低;断层处高,构造单元内低”,并简析了元素异常富集机理,预测地热异常区,为地热田勘探提供理论依据。
中文关键词: 背景值  元素异常  断裂  富集模式
Abstract:The front halo elements, such as As, Sb, Bi, Li, Be, Rb, and Hg, can be used as important indexes in geothermal field exploration. Based on typical geothermal field in Jizhong Depression deep soil sample testing data, this article calculated the background, threshold and correlation coefficient, mapped the long profile and contour map, using the normalization method superimposed the element contour map, and controlled element anomaly location known element distribution characteristics of "High in south geothermal field, low in north convex area and central cavity; high on the fault layer, low in the structure unit”. Ultimately, this article briefly analyzed the mechanism of elements anomaly enrichment, predicted geothermal anomaly areas, which can provide a theoretical basis for geothermal field exploration.
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基金项目:中国地质调查项目(ZR2019000017);江西省自然科学基金项目(20202BABL203033);江西省博士后项目(2015KY48);放射性地质与勘探技术国防重点学科实验室开放基金项目(RGET1807);核资源与环境国家重点实验室开放基金资助项目(NRE1929)
引用文本:
苏 航,陈功新,邢林啸,孙占学,岑 丽,陈诗峰.冀中坳陷典型地热田前缘晕元素特征及对其地热学意义[J].有色金属(矿山部分),2021,73(3):88-97.
SU Hang,CHEN Gongxin,XING Linxiao,SUN Zhanxue,CEN Li,CHEN Shifeng.The characteristics of the front halo elements of typical geothermal fields in Jizhong Depression and their geothermal significance[J].NONFERROUS METALS(Mining Section),2021,73(3):88-97.

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