江西夏家铺地区地球化学异常特征及找矿方向
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摘要
江西夏家铺地区位于江西省北部,为典型的南方湿润半湿润中低山景观区。江西省地质调查研究院于2013—2015年主要采用化探方法在该地区开展了矿产远景调查工作,圈出了多个地球化学异常。主要发育3种元素组合的综合异常,可分为以Sn为主成矿元素的Sn、Pb、Zn、Cu、As、Sb、F、W、Mo、Bi组合、以F为主要成矿元素的F、Pb、Zn、As、Bi组合,以Sb、Au、As元素的为主的Au、Ag、As、Mo、Bi组合,前二者为受地层+构造+隐伏花岗质岩体控制的类异常,后者为可为受地层+构造+煌绿岩、辉绿玢岩脉(墙)共同控制的异常,反映出不同的成矿作用、矿化空间、分布规律。
The Xiajiapu area in Jiangxi Province is located in the north of Jiangxi Province. It is a typical southern humid to sub-humid low-middle mountain landscape area~([1]). From 2013 to 2015,Geological Survey of Jiangxi Province mainly used geochemical exploration methods to conduct mineral prospective investigations in the region,and circled out a number of geochemical anomalies.There are three comprehensive anomalies with their main element assemblages: Sn,Pb,Zn,Cu,As,Sb,F,W,Mo,Bi assemblages; F,Pb,Zn,As,Bi assemblages; Au,Ag,As,Mo,Bi assemblages with Sb,Au,As as the dominant elements. The first two anomalies are controlled by stratigraphic + tectonic + concealed granitic rocks,while the third anomaly could be controlled by strata +tectonics + lamprophyrite,diabase-porphyrite veins( dykes). Those anomalies reflect different metallogenesis,spatial mineralization and distribution pattern.
The Xiajiapu area in Jiangxi Province is located in the north of Jiangxi Province. It is a typical southern humid to sub-humid low-middle mountain landscape area~([1]). From 2013 to 2015,Geological Survey of Jiangxi Province mainly used geochemical exploration methods to conduct mineral prospective investigations in the region,and circled out a number of geochemical anomalies.There are three comprehensive anomalies with their main element assemblages: Sn,Pb,Zn,Cu,As,Sb,F,W,Mo,Bi assemblages; F,Pb,Zn,As,Bi assemblages; Au,Ag,As,Mo,Bi assemblages with Sb,Au,As as the dominant elements. The first two anomalies are controlled by stratigraphic + tectonic + concealed granitic rocks,while the third anomaly could be controlled by strata +tectonics + lamprophyrite,diabase-porphyrite veins( dykes). Those anomalies reflect different metallogenesis,spatial mineralization and distribution pattern.
引文
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