蓝闪石
- 网络glaucophane
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电子探针分析表明,蓝闪石主要为铁蓝闪石和青铝闪石,硬柱石为较典型的硬柱石。
Microprobe analysis suggests that glaucophane is mainly ferroglaucophane and crossite , while lawsonite is relatively typical one .
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变质作用过程可分为三个阶段:拉张环境中的中低压细碧岩化变质作用→挤压造山环境的中高压区域变质作用→局部地区的高压蓝闪石绿片岩相变质作用。
The whole process of metamorphism can be divided into three parts : spilitization metamorphism of mid low pressure in extension situation → regional metamorphism of mid high pressure in compressional structure → metamorphism of high pressure glaucophane greenschist facies in partial areas .
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阿尔泰伟晶岩区锂蓝闪石的发现
Discovery of HOLMQUISTITE in Altai pegmatite area
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绿片岩中发现较多蓝闪石高压变质矿物;
A lot of high pressure metamorphic mineral glaucophanes have been discovered in the green schist .
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硬玉-蓝闪石型相系
Jadeite-glaucophane type facies series
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在白云母钠长(二长)片岩和片麻岩中为石榴石+多硅白云母+钠长石+石英+绿帘石/黝帘石±冻蓝闪石;
Garnet + phengite + albite + quartz + epidote / zoisite ± barroisite in the muscovite albite ( monzo ) schist and gneiss ;
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晚期韧性剪切变形与区域D3变形幕有关,伴随有绿泥石、冻蓝闪石等的出现和石英、方解石的动态重结晶作用。
The late ductile shearing ( DF_2 ) formed in D_3 deformation phase is accompanied by the appearance of chlorite and barroisite etc. and dynamic recrystallization of albite , quartz and calcite .
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方解石+青铝闪石-绿帘石:(4)绿泥石-透闪石+蓝透闪石(±单斜辉石残晶)。
Calcite + crossite + epidote ; and ( 4 ) chlorite + actinolite + winchite ( iclinopyroxene relict ) .
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中国蓝片岩中闪石族矿物的研究
Study of Amphiboles from blueschists in China
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其中早期韧性剪切变形(DF1)与区域D2变形幕有关,蓝闪片岩相矿物(蓝闪石、石榴子石、绿帘石和多硅白云母)是伴随变形叶理生长的同构造产物。
The early ductile shearing ( DF_1 ), which is associated with regional D_2 deformation , is accompanied by the growth of synkinematic blueschist-facies minerals including glaucophane , garnet , epidote and phengite etc. with the development of a transposition foliation .
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最近在南天山中段库米什地区发现了蓝片岩,作为蛇绿混杂体的一种基质产出,含有蓝闪石和青铝闪石。
The blueschist found recently in Kumux in the central sector of the south Tianshan Mountains occurs as a kind of matrix of ophiolitic melange , containing glaucophane and crossite .
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在含蓝闪石岩分布区,岩石的变质相有葡萄石-绿纤石相、蓝闪石绿片岩相、绿帘石-角闪岩相、铁铝榴石角闪岩相等,未发现高压低温矿物组合。
In the glaucophane-bearing rocks there distributed some sections , in which the metamorphic facies of the rocks are mainly of prehnite-pumpellyite facies , glaucophane-greenschist facies , and epidote ( almandine ) - amphibolite facies etc , but the high temperature-low pressure mineral associations are not discovered .