广西珊瑚钨锡矿田地球化学异常特征及预测模式

根据地表原生异常的特征元素Ｗ／Ｓｎ，Ｚｎ／Ｃｄ和Ｃｕ．Ｐｂ．ＺＮ．ｃＤ／ｗ．ｓＮ．Ｂｉ；地表岩石热释汞的异常规模，浓度分带和异常中心值；地表热释卤素的异常规模和强度建立了钨锡型，钨锑型和角砾型３种矿床类型地球化学判别模式。根据矿床不同垂直分带矿脉，单矿物中微量元素含量及其比值和原生异常的分带指标建立了钨锡型矿床剥蚀深度和深部规模的地球化学预测模式。

THE CHARACTER OF GEOCHEMICAL ANOMALY AND PROSPECTING AND PROGNOSTIC MODEL IN SHANHU W-Sn MINING AREA, GUANGXI

According to the characteristic element association: W / Sn,Zn / Cd,and Cu. Pb.Zn. Cd / W. Sn. Bi of primary anomaly, the anomaly dimension, the concentration zoning and the anomaly centre value of rock-thermolysis mercury, and the anomaly dimension and intensity of rock-thermolysis halogen, the geochemical discriminant model of the W-Sn quartz vein, the W-Sbfluorite-quartz vein and the W-quartz breccia vein and types have been established. Based on the content of trace elements and their ratio in vein and monomineral, and the zoning indicator of primary anomaly for different vertical zonation of W-Sn-quartz vein type, the geochemical prognostic model for the denudatic depth and the deep dimention of this deposit type have been established.