烟台市牟平区尺坎金矿床地质特征

Geological Characteristics of Chikan Gold Deposit in Mouping Area of Yantai City

摘要:

尺坎金矿床地处胶东东部著名的牟平〖CD*2〗乳山金成矿带中，区内金矿主要受区域性牟平〖CD*2〗海阳断裂上盘的NNE向断裂控制，沿走向、倾向均具膨胀狭缩现象，中生代燕山早期的岩浆侵入活动为成矿提供了热源，古元古代荆山群变质岩系是金矿的原始矿源层。矿床成因为中温热液充填交代型。

Abstract:

Chikan gold deposit locates in Mouping-Rushan gold ore-forming belt in east part of Jiaodong area. Gold deposits are controlled by regional fault with the trend of NNE, and has expanding and pinching phenomenon along strike and trend. Magmatic intrusion movement in Mesozoic Yanshan period provides thermal source for ore-forming, while metamorphic rocks in Paleoproterozoic Jingshan period are original gold source bed. The orgin of deposit belongs to medium thermal filling type.