摘要
陕西宁陕—户县地区商丹构造带北侧发现的花岗质片麻岩为古老侵入体 ,主要由黑云斜长片麻岩、黑云角闪斜长片麻岩、角闪斜长片麻岩等类型岩石组成 ,具有TTG岩系的组成特征 。
The granite gneiss found in the north side of the Shangxian Danfeng structural zone is a paleo intrusive in Ningshan Huxian area of Shaanxi Province. This paleo intrusive is mainly composed of the rocks of biotite anorthosite gneiss, biotite amphibole plagiogneiss and hornblende plagiogtneiss. It has the composition features of the TTG rock system. The element geochemical features indicate that it formed in a structural environment like to island arc.
出处
《陕西地质》
2001年第1期24-29,共6页
Geology of Shaanxi
关键词
花岗质片麻岩
地球化学
构造环境
灰色片麻岩
稀土元素
Granite gneiss
geochemistry
structural environment
Shangxian Danfeng zone
Ningshan Huxian district
