动力变质作用

动力变质作用对金矿有直接的成矿意义。

The dynamic metamorphism has a direct association with the gold mineralization .

在实验基础上进一步探讨了构造煤的动力变质作用和自由基浓度在煤和瓦斯突出预测中的作用。

The dynamic metamorphism of disturbed coals and the effect of radical density on coal gas outburst prediction are discussed .

浅析构造煤动力变质作用的生烃问题

Preliminary Study on Hydrocarbon Gas Generation of Tectonic Coal Dynamometamorphism

构造煤的动力变质作用及其演化规津

Tectonic coal dynamometamorphism and evolutionary process

在晚元古代以前该地区至少发生过两次热动力变质作用。

Before Later Proterozoic era , in this area more than two times of thermodynamic metamorphism took place .

该片麻岩系由太古宙侵入岩经动力变质作用、静态重结晶作用而形成的构造片麻岩类。

The gneiss series was formed by the tectonic gneisses of the Archean intrusive rocks through dynamic metamorphism and static recrystallization .

矿化蚀变由于受不同成矿作用和不同性质流体的影响，并存在区域变质和动力变质作用，故蚀

The altered minerals tend to occur around the dacite-porphyry domes and spatially display alteration zoning as a conduit in the upper p

动力变质作用所形成的烃气对瓦斯含量、瓦斯压力的增加起着重要作用；

The hydrocarbon gas produced by dynamic metamorphism is found to be considerably responsible for the increase in gas content and in gas pressure ;

变质作用类型以区域性动力变质作用为主，局部地段受岩浆活动的影响，显示了区域动热力变质作用的特点。

The types of metamorphism are mainly regional dynamometamorphism . Some of strata made a feature of regional dynamothermal metamorphism under the influence of magmatic activity .

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 .

角闪岩相变质后续有重熔型混合岩化。五台&吕梁期变质尾声又叠加区域动力变质作用。

It was found that the amphibolite facies metamorphism occurred before the remelting type migmatization and that the regional dynamometamorphism arose in the end of the Wutai Luliang Stage metamorphism .

现有资料支持华夏和扬子两地块在晚元古代碰撞拼合的解释。在晚元古代以前该地区至少发生过两次热动力变质作用。

The data offered here favor that the collision between the Yangtze and Cathysia blocks happened in the late Proterozoic era . Before Later Proterozoic era , in this area more than two times of thermodynamic metamorphism took place .

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 .

断裂破碎带岩石在先存的五台期角闪岩相变质岩之上，叠加了绿片岩相动力退变质作用，普遍出现绿泥石、直闪石、绢云母、堇青石等新生的变质矿物。

The pre-exist amphibolite facies rocks in the fracture belt have been superimposed by retrograde green-schist facies with neoformation of chlorite , anthophyllite , sericite and cordierite .

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。

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 .

贡山地区存在两类特殊的区域动力热流变质作用&低压热轴型、减压增温型。

There are two types of special regional dynamothermal metamorphism in the Gongshan Mountain area , ie , low P hot axis type and P decrease T increase type .

早元古代星子群遭受吕梁期以低角闪岩相为主的区域动力热流变质作用，变质温度约为530－600℃，压力约为400－570MPa。

The early Proterozoic Xingzi Group was subjected to regional dynamothermal metamorphism of Luliang period , dominated by low amphibolite factes with temperature 530-600 ℃ and pressure 400 - 570 MPa .