安徽滁州地区金矿化地质特征及找矿前景分析
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摘要
安徽滁州地区地处郯庐深大断裂的中段东侧 ,管店—龙王尖主干断裂及其次级的NNE、NW向断裂较为发育 ,后者为主要的赋矿构造 ;燕山早期的管店岩体与前震旦纪张八岭群变质岩系广泛接触 ,有利于成矿元素的活化与富集。区内金矿化类型主要有蚀变岩型和石英脉型 ,前者规模较大 ,后者较小。 1∶5万水系沉积物测量表明 ,金异常主要分布于岩体与地层的内外接触带上 ,并且有明显的浓集中心和浓度分带。地质和地球化学特征表明 ,本区具有一定的找矿前景
The Chuzhou district is located on the east side of the middle part of the Tanlu deep large fault,the major fault(Guandian Longwangjian fault) and the secondary NNE and NW faults develop well and crosscut the district,the later is the main gold preserving structure of gold deposits.The Guandian orebody of the early Yanshan period contact well with the Zhangbaling group metamorphic rock series of the Presinian,it is helpful for the activization and enrichment of ore forming elements.There are two main types of gold mineralization in the district:altered rock type and quartz vein type,the former is in large scale and the later is in small scale.The stream sediment survey of 1 50 000 shows that gold anomaly mainly distribute on inner and external contact zones between orebodies and strata,and there are apparent concentration center and concentration zoning in this area.Geological and geochemical features show that there are great prospective exploration in the district.
The Chuzhou district is located on the east side of the middle part of the Tanlu deep large fault,the major fault(Guandian Longwangjian fault) and the secondary NNE and NW faults develop well and crosscut the district,the later is the main gold preserving structure of gold deposits.The Guandian orebody of the early Yanshan period contact well with the Zhangbaling group metamorphic rock series of the Presinian,it is helpful for the activization and enrichment of ore forming elements.There are two main types of gold mineralization in the district:altered rock type and quartz vein type,the former is in large scale and the later is in small scale.The stream sediment survey of 1 50 000 shows that gold anomaly mainly distribute on inner and external contact zones between orebodies and strata,and there are apparent concentration center and concentration zoning in this area.Geological and geochemical features show that there are great prospective exploration in the district.
引文
[1]赵利青,陈祥,肖力,等.皖东—苏北地区物化探异常圈定及盲矿预测研究[R].山东烟台:武警黄金第十支队,1999.
[2]高池兴,赵新峰,于爱军,等.安徽省张八岭地区水系沉积物测量工作报告[R].山东烟台:武警黄金第十支队,2000
[2]高池兴,赵新峰,于爱军,等.安徽省张八岭地区水系沉积物测量工作报告[R].山东烟台:武警黄金第十支队,2000
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