| 内蒙古苏布格塔蓝闪石片岩基本特征及成因分析 |
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| 引用本文： | 张庆奎 邵学峰 关培彦 杨 宾 赵明远 李安楠,吕凤祥.内蒙古苏布格塔蓝闪石片岩基本特征及成因分析[J].中国地质,2014,41(4):1205-1214. |
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| 作者姓名： | 张庆奎 邵学峰 关培彦 杨 宾 赵明远 李安楠 吕凤祥 |
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| 作者单位： | 辽宁省地质勘查院; |
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| 基金项目： | 中国地质调查局地质调查项目(1212011120668)资助 |
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| 摘 要： | 苏布格塔蓝闪石片岩赋存于奥陶纪哈拉哈河组地层中,岩石组合类型多样,据蓝闪石光学特征及电子探针分析结果,认为本区的蓝闪石属铁蓝闪石。蓝闪石片岩的标型矿物组合以蓝闪石+绿帘石+阳起石+多硅白云母+榍石为特点,由泥质碎屑岩变质重结晶形成,原岩形成环境为大陆边缘海盆地。其变质成因,属于与板块运动有关的区域低温中高压动力变质作用形成。
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| 关 键 词： | 蓝闪石片岩 电子探针 标型矿物组合 边缘海盆地 板块运动 |
Basic characteristics and genetic analysis of glaucophane schist in Subugeta, Inner Mongolia |
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| ZHANG Qing-kui,SHAO Xue-feng,GUAN Pei-yan,YANG Bin,ZHAO Ming-yuan,LI An-nan,LV Feng-xiang.Basic characteristics and genetic analysis of glaucophane schist in Subugeta, Inner Mongolia[J].Chinese Geology,2014,41(4):1205-1214. |
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| Authors: | ZHANG Qing-kui SHAO Xue-feng GUAN Pei-yan YANG Bin ZHAO Ming-yuan LI An-nan LV Feng-xiang |
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| Institution: | 1 Liaoning Institute of Geological Exploration, Dalian 116100, Liaoning, China |
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| Abstract: | Abstract: The studied glaucophane schist is in the Ordovician Halahahe Formation of Subugeta, Inner Mongolia, and there are a variety of rock assemblage types. According to the optical characteristics and EMP analysis, the authors have come to the conclusion that the glaucophane schist is a kind of ferriglaucophane in the study area. The topomineral assemblage of glaucophane schist is characterized by glaucophane + epidote + actinolite + phengite + sphene. The schist was cemented and recrystallized by shaly clasolite, and the formation environment of native rock was the marginal-sea basin of the continent. The metamorphic origin belonged to the regional low-temperature/middle-high pressure dynamic metamorphism related to plate movement. |
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| Keywords: | glaucophane schist EMP topomineral assemblage marginal-sea basin plate movement |
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