浙江庆元苍岱银多金属矿成矿模式探讨与找矿方向

作者通过对浙江庆元苍岱矿区成矿地质背景和矿床地质特征的分析,参照区域典型矿床的勘查研究成果,建立了适合本区的受中生代火山机构控制的火山-次火山热液型银铅锌多金属矿成矿模式,对指导矿区下一步找矿具有重要意义。通过深入研究,指出放弃浅部金银,主攻深部铅锌多金属的找矿思路。提出在物探、化探和地质高精度综合剖面测量基础上,采用钻探进行深部验证的工作方法,对于指导矿区及区域内火山岩覆盖区的矿产勘查具用重要意义。

Discussion on metallogenetic model and ore prospecting direction of Cangdai Silver-polymetallic mineral district,Qingyuan,Zhejiang province

Based on analyzing the metallogenetic geological background and geological characters of Cangdai mineral district,Qingyuan,Zhejiang province,this paper established the metallogenetic model of volcanic-subvolcanic hydrothermal silver-lead-zinc deposits controlled by Mesozoic volcanic apparatus in consideration of the research achievement of regional typical deposits,which has important significance to guide the future ore-prospecting in this mineral district.The thorough studies on this area indicate that the attention of ore prospecting should be focused on the lead-zinc polymetallic deposits in deep parts instead of goldsilver deposits in shallow parts.In addition,basing on the accurately geophysical,geochemical and geological profile surveys,the working method of verifying deep-seated deposits by drilling has important significance to guide the exploration of mineral resources in the district and region covered by volcanic rocks.