蓝闪石 硬柱石片岩相
又称蓝闪石片岩相(glaucophane schist facies)、蓝片岩相(glancophane schist facies，blueschist facies)。一种低温、高压的区域变质相。主要分布于环太平洋和阿尔卑斯等中、新生代褶皱带内，一般认为它们是大洋板块俯冲带的标志。它们常与绿片岩相伴生，且有过渡性组合。这一变质相的特征矿物为蓝闪石、硬柱石、硬玉和文石。在不同压力条件下的典型变质矿物组合如下：①硬柱石+钠长石+绿泥石(±石英±方解石±多硅白云母)；②硬柱石+蓝闪石+钠长石+文石(无石英时可出现硬玉)；③硬柱石+蓝闪石+硬玉+石英。这一变质相的温度为250～350℃，压力在0.6～1.2吉帕之间。
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Contributor
contributed at 2011-10-11
Classification(s)
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Earth System(in Chinese) Igneous petrology
Detailed Description
| English |
|---|
| Name | glaucophane lawsonite schist facies |
| Chinese |
|---|
| Name | 蓝闪石 硬柱石片岩相 |
| Description | 又称蓝闪石片岩相(glaucophane schist facies)、蓝片岩相(glancophane schist facies，blueschist facies)。一种低温、高压的区域变质相。主要分布于环太平洋和阿尔卑斯等中、新生代褶皱带内，一般认为它们是大洋板块俯冲带的标志。它们常与绿片岩相伴生，且有过渡性组合。这一变质相的特征矿物为蓝闪石、硬柱石、硬玉和文石。在不同压力条件下的典型变质矿物组合如下：①硬柱石+钠长石+绿泥石(±石英±方解石±多硅白云母)；②硬柱石+蓝闪石+钠长石+文石(无石英时可出现硬玉)；③硬柱石+蓝闪石+硬玉+石英。这一变质相的温度为250～350℃，压力在0.6～1.2吉帕之间。 |
How to Cite
NNU_Group (2011). 蓝闪石 硬柱石片岩相, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/9d0f7126-8781-44d5-aeef-2f5d24cd85a2
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