江西主要推覆构造的基本特征形成机制及控矿作用

    THE BASIC CHARACTERISTICS, FORMATION MECHANISM AND ORE-CONTROLLING ROLE OF THE MAIN NAPPE STRUCTURES IN JIANGXI PROVINCE

    • 摘要: 缓倾斜断裂及推覆构造,广泛发育于江西各地的不同构造单元中。按其形成的力源或驱动力,可分为挤压型和重力型两大类。挤压型主要有:宜丰—新建西山、上高七宝山及信丰大桥等推覆构造;重力型主要有:新余铁山,分宜杨桥、贵溪及安福等推覆构造。推覆构造的研究,对能源发现(油、气和煤)、矿床评价(煤和金属矿床)、工程指导等方面,均有着重要的实际意义和经济价值。

       

      Abstract: Gentle-dipping faults and nappe structures are widely developed in different tectonic units in various areas of Jiangxi. According to the dynamic source or driving force for forming them, they may fall into the compression type and gravity type. The former mainlyinoludes nappe struetures in Yifeng-Xishan of Xinjian, Qibaoshan of Shanggao and Daqiao of Xinfeng. The latter mainly comprises nappe structures in Jiesnan of Xinyu, Yangqiao of Fengi, Guixi and Anfu, study of nappe structures is of important practical sigaificance and economic value in discovery of energy resources(petroleum and coal), evaluation of mineral deposits(coal and metal deposits)and engineering guidance.

       

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