摘要
首次报道云开隆起低压麻粒岩９５０Ｍａ左右的变质作用年龄，结合麻粒岩的岩相学以及区域地质特征，指出晋宁期云开地区处于拉张的构造环境。
About 950Ma age of the low pressure granulite fades metamorphism in the Yunkai uplift is first reported in the paper,the petrographic features of the low pressure granulite and the regional geologlcal feattlres suggest that Yunkal area was situated in the eXtended tectonic environment during the Jinning stage.
出处
《地质科技情报》
CAS
CSCD
北大核心
1994年第3期23-26,共4页
Geological Science and Technology Information
基金
地矿部"八五"攻关项目
关键词
变质年龄
麻粒岩
变质作用
low pressure granulite, metamorphic age,extension,Yunkai uplift
