九瑞铜多金属矿集区“层-体耦合”多位一体成矿模式与深部找矿

"Layer-body coupling"multinity metallogenic model and deep prospecting in Jiurui copper polymetallic high ore concentration area

九瑞铜多金属矿集区内生金属矿床属于与燕山期同熔型中酸性斑岩体有关的广义矽卡岩成矿系列。通过对同熔型中酸性斑岩体为成矿必要条件、赋矿层系为重要条件、构造为充分条件,以及矿床组合与矿化分带进行整体研究分析,建立了九瑞铜多金属矿集区“层-体耦合”多位一体成矿模式,就深部找矿提出以“脉”找“体”、以“层”找“体”、以“体”找“层”和由“铅锌银”找铜的思路。经进一步探矿,在邓家山铜金矿区、南港铜矿区、武山铜矿区等深部探获了新矿体,取得了良好的找矿效果。

The endogenic metallic deposits in the Jiurui copper polymetallic high ore concentration area belong to the generalized skarn metallogenic series related to the Yanshanian syntectic intermediate-acidic porphyry mass.Based on comprehensive analysis of syntectic intermediate-acidic porphyry mass as a necessary condition for mineralization,ore-bearing strata as an important condition,tectonism as a sufficient condition,as well as ore deposit association and mineralization zoning,the"layer-body coupling"multinity metallogenic model in the Jiurui copper polymetallic high ore concentration area is established,and the idea of finding"body"by"vein","body"by"layer","layer"by"body",and finding copper by"lead-zinc-silver"for deep prospecting is put forward.Further prospecting in the deep part of Dengjiashan Copper Gold District,Nangang Copper District and Wushan Copper District finds new ore bodies,showing good prospecting effect.