浙江诸暨上山坞地区地质地球化学特征及找矿远景研究

Geological and geochemical characteristics and prospecting perspective of Shangshanwu area in Zhuji of Zhejiang

上山坞地区位于江绍拼接带的北东端,芙蓉山破火山构造东部。区内出露陈蔡群徐岸组变质岩、上侏罗统西山头组中-酸性火山碎屑岩,环状、放射状断裂发育,徐岸组与西山头组地层为断层接触,接触带两侧共圈定四个综合异常区,区内发现多条矿化带,其中上山坞村综合异常区是寻找铜矿床的良好靶区;王坞坑综合异常区是寻找锌、铅的良好靶区,经深部钻探王坞坑综合异常区已发现含铅、锌矿段。

Shangshanwu area is located at the NE end of Jiangshao suture zone and in the east part of Furong mountain caldera structure. There are metamorphic rocks of Xu＇an formation Chencai group, intermediate felsic volcaniclastic rocks of Upper Jurassic Xishantou group, and ringlike and radial rifts developed in the ar ea. The contact between Xu＇an group and Xishantou group was fault contact, and four integrated anomaly ar eas are blocked on both sides of the contact. Several mineralized zones are found in the area; among them, Shangshanwu integrated anomaly is a good target area of Cu deposits, and Wangwukeng integrated anomaly area is a good target area of Zn-Pb deposits where Zn-Pb ore segments are found by deep drilling.