low-grade metamorphism是什么意思

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Further discussion of mapping method in South China outcroppedareas of pre-Sinian low-grade metamorphic rocks;

再论华南前震旦纪浅变质岩区区调方法

Microflora and its age in the low-grade metamorphic rocks in She county,Anhui province;

安徽歙县浅变质岩系微古植物化石及其形成时代讨论

A number of controversial low-grade metamorphic rocks in the.

在总结大洋板块俯冲形成加积楔的基础上,对大别—苏鲁造山带内部及北缘浅变质岩进行了系统的研究,指出它们是扬子大陆板块俯冲的构造加积楔。

Organic geochemistry of epimetamorphic rock in basement of the Songliao Basin;

松辽盆地基底浅变质岩的有机地球化学特征

Considering several problems on geological mapping in Presinian epimetamorphic rock region of south China;

关于华南前震旦纪浅变质岩区地质填图中某些问题的思考

According to the index fossil of Late Devonian, the age of the epimetamorphic rocks on the southwestern margin of the Tarim Basin is interpreted as Late Devonian, contradictory to previous assertion that they are Proterozoic, Silurian—Middle Devonian, or Late Cambrian—Middle Ordovician in age.

根据新发现的晚泥盆世标准化石,把塔里木盆地西南缘原归属于元古界、志留系—中泥盆统、上寒武统—中奥陶统的一套浅变质岩的原岩时代重新确定为晚泥盆世。

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。

According to the geological occurrences of low-grade metamorphic rocks and high to ultrahigh pressure metamorphic rocks(UHP) in the Sulu orogenic belt, There are the low-grade metamorphic rocks which underwent greenschist facies metamorphism in the middle Dabie ultrahigh pressure(UHP) metamorphic belt and at the north edge of the UHP metamorphic belt.

苏鲁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。

Investigation showed that the low-grade metamorphic rocks at Shiqiao contact structurally (as structural schists) with UHP metamorphic rocks.

　苏鲁造山带超高压变质带内部出露仅经过绿片岩相变质作用的浅变质岩系,地质调查显示,石桥浅变质岩与周边超高压变质岩呈构造接触(构造片岩);地球化学研究证实,该浅变质岩形成于扬子板块北缘大陆边缘厚地壳上裂陷或沉积盆地的构造背景;单矿物电子探针分析结果显示,其部分浅变质岩发育多硅白云母,形成于中-高压相变质环境,说明这些浅变质岩曾经历大陆板块俯冲的动力变质作用过程。

The relationship of Mesozoic epimetamorphic rock series and the gold mineralization in Bangong Lake to Nujiang River mineralized belt, northern Tibet, China;

藏北班—怒成矿带中生代浅变质岩系与金矿成矿

The epimetamorphic rock series were outcropped at different degrees from Devonian to Permian of Jixi area.

鸡西地区晚古生代浅变质岩系从泥盆纪至二叠纪均有不同程度出露,岩石地球化学特征显示富硅(SiO2一般为71。

A set of metamorphic strata of low-greenschist fades is exposed along the northern side of Tiekelike fault in the southern Tarim basin, which was previously called as epimetamorphic rock series due to different viewpoints about its sedimentary time, metamorphic age and genesis, etc.

塔里木盆地南缘和田地区,沿西昆仑北缘的铁克力克断裂北侧断续出露一套低绿片岩相变质地层,由于长期以来对其原岩时代、变质时代及成因等存在不同认识,人们常称其为浅变质岩系。