福建武夷山仙店—浦城渔梁逆冲构造带控矿作用

The Ore-controlling Process of the Xiandian-Yuliang Thrust Tectonic Belt in Fujian Province

武夷山仙店—浦城渔梁逆冲构造带发育于崇安火山盆地东缘,呈北东向展布,由盆缘逆断层为主体,局部具推覆特征。断裂下盘以中新生代中酸性火山岩系为主,上盘主要分布前震旦系变质岩系和南北向中酸性侵入岩,构造性质与地层岩性的差异导致其成矿作用不同,逆冲断裂与火山岩系控制铀成矿作用,推覆构造与变质岩系影响铅锌多金属成矿作用。

The thrust tectonic belt, situated in Xiandian, Wuyishan City and Yuliang, Pucheng County, is distributed over the east party of the Chongan volcanic basin and makes the NE- trending distribution. The reverse slip faults in the edge of the Chongan volcanic basin are the principal part and have nappecharacteristics in a local. The lower wall of the fault consists mainly of middle Cenozoic intermediate and acidic volcanic rocks and the top wall of the fault is mostly made up of Presinian metamorphic rocks and SN-trending intermediate and acidic intrusive rocks. The difference of tectonic characters and formation characteristics results in the different ore-forming process. The mineralization of uranium ores is controlled by the thrust faults and the volcanic rocks. The metallogenesis of lead and zinc polymetal ores is affected by the nappe structure and the metamorphic rocks.