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克鲁-冲木达矽卡岩成矿亚带位于冈底斯—念青唐古拉板片次级构造单元冈底斯火山—岩浆弧的东段南缘,属冈底斯铜多金属成矿带的重要组成部分,双布结热矿区位于冈底斯成矿带东段泽当矿田,地处西藏自治区山南地区乃东县境内,雅鲁藏布江北侧,是典型的矽卡岩型矿床。本文通过野外地质调研、岩相分带以及LA-ICP-MS锆石U-Pb年代学研究,探讨其产出的构造背景,不仅可以深入研究南亚带的成矿机制,同时为研究冈底斯成矿带各亚带的时空关系、冈底斯成矿带与板块俯冲-碰撞构造
The Kruh-Chongmuda skarn metallogenic belt is located in the southern margin of the eastern section of the Gangdese-Nyainqentanglt plate secondary structural unit in the Gangdese volcano-magmatic arc and belongs to the Gangdese copper polymetallic metallogenic belt An important component of the Shuangbu junction is located in the eastern part of the Gangdese metallogenic belt Ze Dang ore field, located in the Autonomous Region Shannan Naidong County, north of the Yarlung Zangbo River, is a typical skarn deposits. In this paper, through field geologic investigation, lithofacies zoning and zircon U-Pb dating of LA-ICP-MS, the tectonic setting of its output is discussed. It not only can deeply study the metallogenetic mechanism of South Asia belt, Spatiotemporal relationships among subbands in the metallogenic belt, the Gangduse metallogenic belt and plate subduction-collision structures