天宝山东风北山钼矿床地质特征及成因探讨

天宝山矿区位于中朝准地台辽东台隆之和龙断块与吉黑褶皱系延边优地槽褶皱带接触处之槽区一侧。该矿床产于印支期花岗闪长岩和火山岩与斑状二长花岗岩接触带,并受北西向和近东西向构造控制。通过对矿床地质特征、成矿物质来源、物理化学环境等方面的研究,认为成矿物质主要来自深部物源区或上地幔,成矿热液则是大气降水和岩浆水组成的混合水。矿床成因为岩浆期后中—高温热液充填石英脉型钼矿床。

Geological features and genesis of Dongfengbeishan molybdenum deposit in Tianbaoshan

Tianbaoshan mine is located at the side of HeLong block in Korea – China Long platform of the station standard and Yanbian fold system of Jilin-Heilongjiang Variscan fold belt.Hosted in the Indo-Chinese granodiorite and Volcanic rocks contacted with porphyritic monzogranite,molybdenum ore is by the north west and near east-west structural control.According to the study on geological characteristics.Ore sources Physical and chemical environment the conclusion can be drawn that ore-forming materials is from deep source area or upper mantle and Mineralizing hydrotherm is the mixture of meteoric water and magmatic water.Thus,the mineralization of Dongfengbeishan molybdenum deposit is mid-high temperature hydrotherm and quartz vein filling type.