山东海阳土堆金矿床地质特征

GEOLOGICAL CHARACTERISTICS OF TUDUI GOLD DEPOSIT (No.1 Exploration Institute of Geology and Mineral Resources of Shandong)

山东海阳县土堆金矿床位于郭城断裂带以东，赋存在荆山群野头组大理岩与燕山期闪长玢岩接触带内侧。金矿体受ＮＥ向次级构造裂隙控制，多呈脉状、似层状产出。矿石矿物成分复杂，具夕卡岩化、黄铁矿化、硅化及碳酸盐化等蚀变，成矿过程曾发生接触交代作用。该矿床具有含金夕卡岩型矿床的一般特征，在胶东地区属于一种新的金矿类型。

Tudui gold deposit located in the east part of Guocheng fault zone,occurs in the inner contact zone formed by marble(Yetou formation of Jingshan group)and diorite