TECTONIC CHARACTERISTICS OF THE BAIYANGPING-HUACHANGSHAN ORE BELT,YUNNAN PROVINCE AND ITS ORE-CONTROLLING EFFECT
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摘要: 云南白秧坪-华昌山成矿带位于兰坪-思茅印支燕山、喜马拉雅期成矿带的北段,成矿以中生代海相过渡到陆相的碳酸盐岩建造、碎屑岩建造夹火山岩建造为基础,喜马拉雅期构造推覆及热液改造为主导作用。对矿带内矿田地质和控矿构造的调查表明,本区的层控加热液改造型矿床与成矿构造关系密切。Abstract: The Baiyangping ore belt is located in the northern segment of the Lanping-Simao Indosinian-Yanshanian-Himalayan metallogenic belt.The mi neralization occurred on the basis of the Mesozoic marine to continental carbonate formation and clastic formation intercalated with the volcanic formation,and the Himalayan tectonic overthrusting and hydrothermal modification played a dominant role.Study of the ore-field geology and ore-controlling structure in the ore belt indicates that the stratabound plus hydrothermally modified deposits in the area is closely related to ore-controlling structure.
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