沂水县前王家庄金矿地质特征及找矿意义

前王家庄金矿是在沂沭断裂带内新发现的金矿床。通过对该金矿成矿地质特征、矿化类型的研究,在总结区内金矿勘查成果的基础上,按矿体产出的构造样式划分为产于韧性剪切带、脆/韧性构造带、碎裂岩带3类金矿赋矿类型,以产于沂水岩群与新太古代花岗岩接触部位的第二期中浅层脆/韧性构造带内的金矿类型为主,并对不同类型的矿化特征进行了较为详细的描述。结合沂沭断裂带内典型矿床特征,探讨了该金矿床的成因,指出了今后的勘查思路,为在汞丹山凸起中部开展金矿勘查提供了新的找矿方向。

Geological Characteristics and Prospecting Significance of Qianwangjiazhuang Gold Deposit in Yishui County

Qianwangjiazhuang gold deposit is a newly discovered gold deposit in Yishu fault zone. Through study on gold metallogenic geological characteristics and mineralization types, on the basis of summarizing exploration achievements, and according to the structural style, ore bodies can be divided into three types, they are ductile shear zone, brittle/ductile tectonic zone and cataclastic rock zone. the main type, on a middleshallow level in the second phase and located at the contact zone of Yishui rock group and Neoarchean granite and (3) cataclasite zone. The characteristics of different types of mineralization are discussed in detail. Based on the characteristics of typical deposits in Yishu Fault Zone, the genesis of this gold deposit is discussed, and the basic idea of further exploration is pointed out, which provides a new prospecting direction for the gold exploration in the midland of the Gongdanshan bulge.