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金属矿山 ›› 2010, Vol. 39 ›› Issue (02): 96-99+144.

• 地质与测量 • 上一篇    下一篇

对福建马坑铁矿床控矿构造特征的新认识

陈跃升   

  1. 1.中国地质大学(武汉);2.福建马坑矿业股份有限公司
  • 出版日期:2010-02-15 发布日期:2010-11-09

New Understanding of Ore-control Structure Feature of Fujian Makeng Iron Mine

 CHEN  Yue-Sheng   

  1. 1.China University of Geosciences(Wuhan);2.Fujian Makeng Mining Co., Ltd.
  • Online:2010-02-15 Published:2010-11-09

摘要: 通过对马坑铁矿矿区控矿构造的剖析及开采过程对矿床成因的新认识,认为马坑铁矿为典型的矽卡岩构造控矿矿床。矿床发育着一套海进式的沉积建造地层,该套地层受后期热液蚀变改造从而形成此矿床。矿床层控构造的标志较为明显,并且受区内褶皱、断裂构造的控制。矿床在海西早期的构造动力条件与整个闽西南区域性的主体构造动力条件不同,并且经历过明显的同沉积构造变动。

关键词: 层控构造, 矽卡岩热液交代, 热液蚀变改造, 沉积建造

Abstract: In light of the analysis of ore-control structure in the mining area and new understanding to the ore genesis, it is concluded that Makeng iron mine is a typical skarn structure ore-control deposit.A transgression sedimentary strata comes into the deposit through the transformation of hydro-thermal alternation.The ore-control structure in Makeng owns an obvious symbol and is controlled by folds and faults.The tectonic dynamic condition of Makeng, which is different from the regional tectonic dynamic condition of southwestern Fujian, experienced an alternation with an obvious syndepositional structure.

Key words: Ore-control structure, Hydrothermal metasomatism of skarn, Transformation of hydrothermal alteration, Sedimentary formation