基于矿床的成矿系列理论构建吉南地区成矿作用演化轨迹图

    Minerogenetic evolution path in southern Jilin Province based on minerogenetic series theory of deposits

    • 摘要: 运用矿床的成矿系列理论, 在吉林南部地区划分矿床成矿系列, 构建成矿作用演化轨迹图, 总结吉南地区不同构造演化时期成矿构造环境及成矿作用的时空演化规律.研究表明, 吉南地区可建立从新太古代至新生代不同地质历史时期的4个矿床成矿系列组、3个矿床成矿系列组合、3个矿床成矿系列类型、12个矿床成矿系列、16个矿床成矿亚系列、27个矿床式.以构造演化阶段为横坐标, 构造演化旋回为纵坐标, 构建成矿作用演化轨迹图, 每一个矿床成矿系列组(组合、类型)、矿床成矿系列、矿床成矿亚系列、矿床式在图中都有自己特定的位置.轨迹图反映了吉南地区构造演化的旋回性与成矿作用的规律性存在的内在联系, 揭示了矿床成矿系列各序次的属性内涵及其之间的相互关系, 体现了吉南地区构造演化和成矿过程的历史, 是吉南地区构造演化不同旋回成矿作用的客观记录.

       

      Abstract: The study adopts the minerogenetic series theory of mineral deposits to divide the minerogenetic series, construct the minerogenetic evolution path, and summarize the metallogenic environment and spatiotemporal evolution regularity of mineralization in southern Jilin Province in different tectonic evolution periods. The result establishes 4 deposit minerogenetic series groups, 3 minerogenetic series combinations, 3 minerogenetic series types, 12 minerogenetic series, 16 minerogenetic subseries and 27 deposit types in different geological periods from Neoarchean to Cenozoic. Taking the tectonic evolution stage as abscissa axis and the evolution cycle as ordinate axis, the evolution path diagram of mineralization is completed, with each minerogenetic series group (combination, type), minerogenetic series, minerogenetic subseries and deposit type at a specific position. The diagram reflects the interrelation between the cyclicity of tectonic evolution and regularity of mineralization, the attribute connotation of each sequence of metallogenic series and their mutual relations, as well as the history of tectonic evolution and metallogenic process in southern Jilin Province, which is an objective record of mineralization in different tectonic evolution cycles in the area.

       

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