摘要
文章以小秦岭金矿区为例，研究了中基性脉岩与金矿床成因的关系。研究表明，中基性脉岩的产出反映了区域性地壳拉张构造环境，此环境有利于构成富矿化剂的热液体系。只有当富矿化剂的热液体系在时间和空间上与金等成矿元素的矿源层（体）配合得当，才可能在适宜的地质地球化学条件下形成相应的矿床。即中基性脉岩对金成矿的制约关系主要在于矿化剂而非金源。
As exampled for Xiaoqinling,this paper discusses the relationship between meso-basic dyke rocks and gold mineralization. The research shows that the model of Lamprophyres Carry Gold is not suitable for gold-quartz vein deposits in China,especially in Xiaoqinling. A new point put forward in this paper indicates that the intruding of the meso-basic dyke rocks is a sign of the regional crustal extension. The hydrothermal system rich in mineralizer is easier to be formed under these circumstances.It is when the hydrothermal system comes across gold sourec bed(or other metals source bed) that gold (or the other metals)deposits can form in a suitable environment. What the meso-basic dyke rocks carry is not gold but mineralirer.
出处
《成都理工学院学报》
CSCD
1994年第3期70-78,共9页
Journal of Chengdu University of Technology
基金
中国科学院矿床地球化学开放研究实验室资助
关键词
金矿床
矿化
脉岩
diabase, lamprophyre, gold deposit, mineralizer
