摘要
洪水河地区侵入岩形成于中三叠世,该区大地构造位置属秦祁昆造山系,东昆仑弧盆系,北昆仑岩浆弧带,洪水河古元古代基底残块。通过对该区中三叠侵入岩的主量元素、微量元素、稀土元素等岩石地球化学特征的探究,认为洪水河地区的侵入岩属于Ⅰ型花岗岩,是在板块碰撞前俯冲的构造环境中形成的。
The intrusive rocks in Hongshuihe river area are formed in middle Triassic fold, which belong to Qinqi orogeny, including the eastern Kunlun arc basin system, the northern Kunlun magma arc zone and the Paleoproterozoic basement residual block in Hongshui River. Through the study of geochemical characteristics in main elements, we have found the trace elements and rare earth elements of the middle Triassic intrusive rocks in this area. It is concluded that the intrusive rocks of the Hongshui River area belong to No. 1 Type granite, as forms a tectonic setting of subduction before the plate collision.
作者
李萌
肖渊甫
张俊柯
杨秋平
谭韬
LI Meng;XIAO Yuanfu;ZHANG Junke;YANG Qiuping;TAN Tao(Chengdu University of Technology,Chengdu,Sichuan 610059,China)
出处
《中国锰业》
2018年第5期117-120,共4页
China Manganese Industry
基金
中国地质调查局区域地质调查子项目(121201004000150017-38)
关键词
红水河地区
地球化学特征
构造环境
Ⅰ型花岗岩
Hongshuihe area
Geochemical characteristics
Tectonic environment
No. 1 type granite
