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地质学报  2003 

内蒙古北山及邻区金属矿床类型及其时空分布

, PP. 367-378

Keywords: 内蒙古北山金属矿床时空分布容矿围岩地质特征

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Abstract:

依据金属矿床围岩岩性组合和成矿作用特征,将内蒙古北山及邻区分布的各类金属矿床(点)划分为6种类型,即①斑岩型钼―金和铜矿床(点);②夕卡岩型铁―铜矿床(点);③火山气液型铁和锑矿床(点);④热液脉型钨、锡和稀有金属矿床(点);⑤岩浆岩型铬和钒―钛―铁矿床(点)和⑥变质热液型金和铁矿床(点)。在较详细剖析各类金属矿床(点)基本地质特征的基础上,划分了4个成矿带和9个矿化集中区,并且讨论了区域地壳演化与金属成矿作用的关系。研究结果表明:尽管本区金属矿床(点)成矿作用分别发生在前寒武纪和晚古生代,但是大规模成矿作用发生的时间与海西期板块活动高峰期相吻合,是地壳特定演化阶段构造―岩浆活动的产物。

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