| 1. | Hornblende bearing varieties bridge the gap over to amphibolites which are in bands and dikes . 含角闪石的变种填补了带状和脉状角闪岩的中间相。 |
| 2. | Albite - epidote - amphibolite facies 钠长帘闪岩相 |
| 3. | The metamorphic process in the formation of garnet amphibolite along the china - pakistan highway profile , west kunlun orogenic belt 西昆仑造山带中巴公路段石榴角闪岩形成的变质地质过程 |
| 4. | Lots of information suggest that the metamorphism process of this area are from granulite facies to amphibolite facies and the retrograded metamorphic path is basically a cw nearly isothermal decompressional evolvement trend 各种信息表明本区的变质作用是由麻粒岩相退变到角闪岩相。退变质轨迹基本上是一个顺时针近等温减压型演化趋势。 |
| 5. | Based on the 1 : 50000 regional geological survey , the sertengshan rock group is revised , involving the schist and marble of low - amphibolite to high - greenschist facies , which are distributed in middle and west inner mongolia 摘要根据近年完成的1 : 5万区域地质调查成果及综合研究,将分布于内蒙古中部色尔腾山、大青山、西部乌拉特后旗以及阿拉坦敖包、叠布斯格等地的低角闪岩相高绿片岩相的片岩、大理岩系厘定为色尔腾山岩群。 |
| 6. | Subordinate are plagioclase granite dike , layered tonalite , tonalitic conglomeration dispersed in amphibolite , ultramafic rock and metabasalt etc . . plenty of igneous accumulated banding were discovered in amphibolite from nujinshan and bujing area some residual clinopyroxene also were found in a few of sample 超镁铁岩多为构造透镜体分布于断裂带中,多蚀变为蛇纹石岩,在牛井山及布京一带已发现并圈定了9个岩体(块) 。 |
| 7. | All these rocks aforementioned are mainly parametamorphic rocks . milan , kaqiang and alamasi group underwent high - grade metamorphism of amphibolite facies , together with weak migmatism . they share the same geochemistry and total ree and many other chracters 二者主要为副变质岩石,米兰岩群和卡羌岩群、阿拉玛斯岩群变质较深为角闪岩相,普遍弱混合岩化,它们具有非常相似的地球化学特征,稀土元素总量及其它特点一致或相近。 |
| 8. | According to representative section , tectono - stratigraphic unite , rock association character , beidahe group is divided a , b , c petrofabrics . the lithology of a petrofabric is amphibolite , gneiss interlated with schist , accidental marble . the lithology of b petrofabric is schist interlated with marble , quartzite 根据代表性剖面的研究,在构造岩石地层单位序列划分变质地层的原则指导下,按变质岩石组合特征划分了a 、 b 、 c三个岩组。 |
| 9. | Based on the studies of petrotexture , structural deformation and the relevant metamorphism , this paper indicates that this peridotite massif is the product of ultramafic magma cumulated at the crust - mantle transtion zone and has undergone the early stage of plastic deformation under the condition of granulite facies ( 800 ) and late ductile shearing at amphibolite and greenschist facies in relevance to uplifting 本文通过岩体的结构、构造变形及相应的变质作用研究,提出了该橄榄岩体是由超基性岩浆在壳幔过渡带结晶而成,并经历了与围岩一致的麻粒岩相( 800 )条件下的早期塑性变形以及角闪岩相和绿片岩相退化变质条件下与逆冲上升有关的韧性剪切变形。 |
| 10. | Detail mapping shows that the yagan mcc consists of crystallized metamorphic core ( low plate ) , detachment zone and upper plate . the metamorphic core consists of can be further subdivided into two level parts low - level high metamorphic and upper - level shallow metamorphic structural slice and between them there exists a ductile shear zone . thus the whole texture of the mcc is characterized by " three layers and tow zones " this reveals a process of extensional uplift of poly - level slices by poly ductile shear zones , a characteristics of poly - level extensional structural systems . the deformational environments change vertically in a sequence of high amphibolite facies 亚干变质核杂岩由下盘结晶岩系变质核、拆离带和上盘岩系构成,其中,变质核由四个单位及许多花岗岩体(脉)组成,可进一步分为中深和中浅变质两个构造单位(岩片) ,之间发育次级韧性拆离带(花岗质糜棱岩带) ,加上上盘总体构成“三层两带”的结构特点。 |