粤北大东山地区地球化学特征与找矿前景  

GEOCHEMICAL CHARACTERISTICS AND ORE-PROSPECTING VISTA OF DADONGSHAN AREA,NORTHERN GUANGDONG PROVINCE

作　　者：张忠进 方敬文 李国平[2] 邵立波 

机构地区：[1]广东省佛山地质局,广东佛山528000 [2]江苏省地质矿产局第四地质大队,江苏苏州215000

出　　处：《物探与化探》2006年第3期220-223,共4页Geophysical and Geochemical Exploration

基　　金：中国地质调查局国土资源大调查项目(200110200024)资助

摘　　要：1∶20万水系沉积物测量结果表明,粤北大东山地区富集Sn、W、B i、Pb、Ag、F、B,且分布不均匀,叠加富集程度高,圈出的综合异常规模巨大,出现多个浓集中心。选择分析了潭岭、称架浓集中心的异常特征和所处的地质背景,认为成矿条件好,具较好的找矿潜力,以寻找云英岩型、蚀变构造带型、蚀变岩体型、石英脉型锡钨矿为主。1： 200000 stream sediment survey shows that Dadongshan area of Guangdong Province is enriched in Sn, W, Bi, Pb, Ag, F and B, which are characterized by uneven distribution and high degree of superimposed enrichment. The delineated composite anomalies are large in size and show quite a few concentration centers. In this paper, Tanling and Chengjia concentration centers were chosen to analyze the anomaly characteristics and geological settings. It is held that these centers have favorable ore-forming conditions and ore-prospecting potential, and hence are suitable places in search for greisen type, altered tectonic belt type, altered rock body type and quartz vein type Sn and W deposits.

关 键 词：粤北大东山地区 地球化学特征 找矿前景 

分 类 号：P632[天文地球—地质矿产勘探]