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辽西台里金矿床地质特征及矿床成因

Geological characteristics and deposit genesis of Taili Gold Deposit in west Liaoning

  • 摘要: 台里金矿床位于华北板块北缘燕山沉降带山海关古隆起的东段,是近年来在阜新—台里韧性剪切型金成矿带南西段发现的新矿床。台里金矿床矿(化)体产于新太古代花岗质片麻岩中,沿韧性剪切带的次级脆性断裂分布,受韧性剪切带控制明显,具有多阶段、多期次的成矿特征,其最终成矿期为燕山中晚期,矿床成因类型属于太古宙绿岩建造后韧性剪切带破碎蚀变岩型金矿床。

     

    Abstract: Taili Gold Deposit is located in the east of Shanhaiguan paleo uplift of Yanshan subsidence zone of North China Plate,and is a newly found deposit in the south end of Fuxin-Taili ductile shear gold metallogenic belt.The ore(mineralization)body of Taili Gold Deposit occurs in the Archaean granitic gneiss and is distributed along the secondary brittle fracture of ductile shear zone and is evidently controlled by ductile shear zone,possessing the feature of multiphase and multistage metallogenesis.The final oreforming period is the middle and late Yanshanian.The deposit genesis belongs to Archaean green stone construction post ductile shear zone fractured alteration rock type gold deposit.

     

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