greenschist facies

However , Ti , Al and ( K + Na ) decreasing likely indicate another retrogressive evolution from amphibolite-granulite or amphibolite to low greenschist facies .

相反，角闪石环带从核部到边部钛、铝和（钾+钠）含量减少，则暗示了角闪岩-麻粒岩相或角闪岩相到（亚）绿片岩相的退变质演化。

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 .

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。

Low - grade metamorphic rocks of greenschist facies .

低级区域变质带，多数是中压绿片岩相。

And the late one is high-pressure greenschist facies to eclogite facies metamorphism .

晚期为高压绿片岩相榴辉岩相变质作用。

The second period of deformation formed common mylonite , whose deformation environment belongs to greenschist facies on the whole .

第二期变形形成具一般特征的糜棱岩，变形环境大体属绿片岩相。

The discovery of glaucophane greenschist facies rock mass in Lianyungang , northern Jiangsu

苏北连云港地区蓝闪绿片岩相岩块的发现

XRD analysis of the Banxi Group slate in the northern Xuefeng Uplift suggest a lower greenschist facies metamorphism .

雪峰隆起北部板溪群板岩伊利石X射线衍射分析显示其经历了低绿片岩相区域变质作用。

Evidences for an extensional event , formed in retrograde greenschist facies conditions , are recognized in the HP metapelites .

在退变质的绿片岩相石英岩中还发现了向南滑脱的运动学标志，代表一期伸展作用。

The earlier ductile deformation took place under the condition of amphibolite facies and the later transitional ductile-brittle deformation under the condition of greenschist facies .

早期的韧性变形发生在角闪岩相变质作用条件下，晚期的脆韧性变形发生在绿片岩相变质作用条件下。

Newly-formed mineral assemblages and mineral deformation behaviors demonstrate that the ductile shear belt was developed under a condition of mid-high-grade greenschist facies .

糜棱岩中变形矿物组合与矿物变形行为指示该韧性剪切带形成于中&高绿片岩相环境。

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 .

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。

Illite crystallinity of the buried hill is 122 ~ 150 , bo-value is 9.030 ~ 9.066 , showing low metamorphic greenschist facies .

潜山地层中的伊利石结晶度为122～150，b0值为9030～9066，变质程度为浅变质绿片岩相，而邻近区域只有中元古界具有这样的特征；

The early stage deformation was marked by nearly E W directed dextral shear accompanied by low greenschist facies metamorphism , while the late stage one by SE directed sinistral shear .

早期为伴生低绿片岩相变质作用的近东西向右行剪切，晚期为北西&南东向的左行剪切。

There are low-grade metamorphic rocks which underwent greenschist facies metamorphism in the middle and north margin of the Dabie ultrahigh pressure ( UHP ) metamorphic belt .

大别造山带超高压变质带内部及其北缘，出露仅经过绿片岩相变质作用的浅变质岩系。

The nappe structure was formed at depths of about 5-10km , largely in the Oligocene , and the formation environment did not exceed the low greenschist facies .

形成深度约510km，形成环境不超过绿片岩相。大体生成于渐新世时期，约4020Ma之间。

Orogenic lode gold deposits sited along brittle ductile shear zones occur throughout the central zone within greenschist facies , highly-deformed , Devonian and younger clastic rocks .

造山型脉状金矿床主要分布于西秦岭造山带中的脆韧性剪切带内。

During the middle-later Proterozoic , regional dynamothermal metamorphism formed a northward progressive metamorphic zone , such as lower greenschist facies higher greenschist facies lower amphibolite facies .

因主要经受中晚元古期中压区域动力热流变质作用，形成自南向北递增变质带，即低绿片岩相高绿片岩相低角闪岩相。

Newly-formed syntectonic mineral assemblage along cleavage plane and clastic grain deformation characteristics indicates that the cleavages were formed at the low greenschist facies conditions in the middle-upper crustal level and were featured by ductile-brittle deformation .

沿着劈理面同构造新生矿物组合和碎屑颗粒变形特征表明，劈理形成于地壳中浅部构造层次上的低绿片岩相条件下，以韧脆性变形机制为主。

The upper crust is mainly composed of slates , phyllites , schists , granulite of greenschist facies ( partly low-amphibolite facies ) and granite intrusions , and sedimentary rocks at the top .

上地壳主要为绿片岩相（部分低角闪岩相）的板岩、千枚岩、片岩、变粒岩以及花岗岩组成，顶部为沉积盖层。

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 .

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。

Dachang gold deposit is located in the North Bayan Har orogenic belt . All the gold ore bodies are hosted in Middle Triassic sandstone interbedded with slate of the Bayan Har Mountain Group , the ore-bearing wall rocks reached greenschist facies .

大场金矿位于北巴颜喀拉造山带中段，含矿地层为三叠系巴颜喀拉群砂岩板岩互层组，赋矿围岩绿片岩相变质、变形现象普遍。

The metamorphism of the Susong Complex is intermediate between that of the southern glaucophane greenschist facies belt and that of the northern eclogite facies belt , three of which represent the products of the different subduction depths of the Yangtze plate under the North China plate .

宿松杂岩的变质条件介于其南部的蓝闪绿片岩相和北部的榴辉岩相之间，三者是扬子板块向华北板块之下俯冲到不同深度的产物。