区域低温动力变质作用
- 网络Regional low-temperature dynamic metamorphism;regional low temperature dynamo metamorphism
区域低温动力变质作用
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川西高原广泛分布的西康群,原视为区域低温动力变质作用低绿片岩相变质岩。
Xikang Group is widely exposed on the West Sichuan Plateau and was considered to be a low greenschist facies metamorphic rock due to regional low-temperature dynamometamorphism .
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第一期变质作用属于区域低温动力变质作用类型,以形成低绿片岩相矿物组合为特征,变质温度较低,而应力作用较强,是造山作用初期热流活动较弱,构造变形强烈环境下的产物。
The first stage belongs to regional low-temperature dynamic metamorphic type and is characterized by typical metamorphic mineral assemblage of low greenschist facies with low metamorphic temperature and strong stress-induced recrystallization which represents weak crustal heat flow and strong structural deformation during early stage of an orogeny .