摘要
厘定了广西大厂矿田岩浆岩的侵入期次 ,并在花岗岩岩石学研究的基础上 ,通过岩石主量元素稀土元素及微量元素成分分析 ,运用岩石主量元素及微量元素构造环境判别图解结合岩体产出的地质条件 ,对区内花岗岩形成的构造环境进行了综合判别。提出大厂矿田不同期次花岗岩形成于后造山向板内环境的转化阶段 ,区内成岩的主体构造环境为较稳定的区域拉张环境 。
This paper has discussed the intrusion stages of the magmatic rocks of Dachang ore field in Guangxi.The petrographic study and the composition test of the main elements,rare earth elements and trace elements of the Dachang granites and the distinction of the tectonic settings and granite formation have revealed the different stages of granites in the ore field.The formation stage is found to be related to tectonic tranformation from post-orogenic to intraplate tectonic setting.While the major tectonic for granite formation is a steadly pull-apart,which is most beneficial for the formation of the super large deposit in Dachang orefield.
出处
《地质科技情报》
CAS
CSCD
北大核心
2004年第2期57-62,共6页
Geological Science and Technology Information
基金
广西柳州华锡集团有限责任公司博士后科研站科研项目"丹池成矿带构造控矿规律研究"
关键词
花岗岩
地球化学
构造环境
大厂矿田
广西
granite
geochemistry
tectonic setting
Dachang ore field
Guangxi
