东秦岭竹园沟钼矿床次生晕异常特征及其找矿意义

东秦岭（河南）汝阳竹园钼矿床是近年来新发现并探明的中型（近大型）斑岩型钼矿床。矿床的发现主要依赖于1∶5万分散流测量成果,而地质勘查则是根据1∶1万次生晕异常的指示作用进行部署;矿区次生晕异常组合元素Cu、Pb、Zn、Ag、Mo、Ba等,而真正具找找矿意义的元素则为Mo、Ag次为Cu、Zn。Mo异常具规则椭圆状,具三级梯级带,浓集中心相对清楚;异常强度最高为40×10-6,＂高原＂与＂低洼＂差别明显,Ag异常与Mo导常有一定套合度,矿床勘查结束所圈空的主要工业钼矿体分布范围与Mo异常基本吻合,说明,次生晕测量作为寻找斑岩型钼矿床的手段是必要的。

ANOMALY CHARACTERISTICS OF THE SECONDARY HALO ANOMALY AND PROSPECTING SIGNIFICANCE OF ZHUYUANGOU MOLYBDENUM DEPOSIT IN EAST QINLING MOUNTAIN

Zhuyuangou molybdenum deposit in East Qinling mountain（ henan）,as a medium（ near large） porphyry molybdenum deposit,is newly discovered and proved in recent years. Deposit discovery mainly depends on the 1 ∶ 50000 dispersed flow measurement results,the geological exploration is based on secondary halo anomaly indicator of 1 ∶ 1 million to deploy,mine secondary halo anomaly combination elements Cu,Pb,zinc,Ag,Mo,Ba, etc,and is of real significance for ore elements to Mo,Cu,Ag and zinc. Mo abnormal has rule elliptical and three-level ladder zone. Strong concentration of heart is relatively clear; abnormal strength up to 40 × 10-6,＂plateau＂ and ＂low-lying＂difference is obvious,Ag and Mo anomalies often has certain set of degree,deposit exploration over the delineation of main industrial molybdenum anomalies with basic consistent,secondary halo measurement as a means of finding porphyry molybdenum deposit is necessary.