方岩

They are different in the evolution of mineral, and microfabrics, which provides possibility to identify the origin of chert.

在夏鲁硅质岩中生物化石残骸内存在方英石和玉髓，为反演生物成因硅质岩的矿物演变序列提供了很好的证据。

The coutry rock is banded kynite-eclogite and its protolith is believed to be cumulate gabbro.

斜方辉石残晶的成分具有高Al 和Ca 的特征，与大洋地幔橄榄岩中斜方辉石的成分一致。

The mineral assemblages of the granulite are clinopyroxene, orthophyroxe, biotite, plagioclase, amphibole, quartz. According to the results of mineral electron probe analyses, the formation conditions of granulite are discussed and P-T conditions are calculated.

根据麻粒岩的主要组成矿物单斜辉石、斜方辉石、黑云母、斜长石、角闪石的电子探针分析结果，重点讨论了各主要造岩矿物的形成条件，并对麻粒岩形成的温压条件进行了初步计算。

This suggests that the secondary orthopyroxene formed at the expense of olivine and clinopyroxene during the metasomatism by an evolved Tirich melt.

与含石榴石橄榄岩中的斜方辉石相比，这种次生的斜方辉石以高TiO2、中等含量的Al2O3以及低Mg＃为特征，表明它是在一种高度分异演化的富Ti熔体交代作用下通过消耗橄榄石和单斜辉石方式形成的。

Through analysis of the experimental data about ultrapotassic rocks, typeI ultrapotassic rocks came from the source region of phlogopite harzburgite that had undergone metasomatism of fluid enriched in silica and potassium; while the source region of typeⅢ potassicultrapotassic volcanics is carbonated peridotite mantle bearing potassic amphibole.

综合超钾质岩石的实验资料，可知区内I型超钾质岩的源区以富硅、富钾流体交代形成的金云母方辉橄榄岩为主；Ⅲ型钾质超钾质岩浆源区则以斜辉橄榄岩地幔为主。

The pillow lava, with affinity of MORB, plots in the field of MORB and IAT, suggesting that the Yushigou ophiolite formed in a tectonic setting like the Middle Ocean Ridge and then were changed by volcanic arc magmatism.

地幔橄榄岩主要是方辉橄榄岩，其主要氧化物成分较为单一，具LREE富集、Eu亏损的U形REE配分模式，亏损强不相容元素；枕状熔岩具典型MORB特征，在构造判别图解上位于MORB和IAT区域，指示蛇绿岩可能形成于类似于洋中脊的构造环境，并受到火山弧岩浆作用的影响。

Orthopyroxenites commonly contain Tirich minerals and also relict grains of olivine and clinopyroxene occurring as inclusions in secondary orthopyroxene.

这种斜方辉石岩既作为独立的捕掳体存在又以细脉的形式穿插于橄榄岩捕掳体中。

This paper employs clay stone analysis to Permian-Triassic boundary strata from three deep water sections, Duanshan, Nashui and Liuqiao, located in Guangxi and Guizhou region, southwestern China. The result shows that clay stones from the three localities are composed of illite-montmorillonite mixed layer, montmorillonite and kaolinglite. There are rock fragments such as bipyramid quartz and zircon which are related to volcanic process found in all the sections except in Nashui section.

对贵州断杉、纳水以及广西柳桥3条深水相剖面上的二叠系－三叠系界线附近黏土岩的研究结果表明，在断杉、柳桥剖面黏土岩中的私土矿物主要由伊－蒙混层、蒙脱石和高岭石组成，碎屑物质中存在六方双锥石英、锆石等与火山活动有关的矿物；在纳水剖面黏土岩中未发现与火山活动有关的迹象。

The Pl-lherzolite differs from the cumulates in having blastic texture and high-temperature deformed fabric of Ng[100] characteristic of the mantle peridotite and yielding orthopyroxene.

含长二辉橄榄岩以其具有地幔橄榄岩特有的变晶结构和Ng(100)高温变形组构，以及含斜方辉石等特点而区别于堆晶岩。

Abundant peridotitic xenoliths had been found in the Dashihe Cenozoic basalts in Jiaohe of Jilin Province, northeastern China.

吉林省蛟河市境内大石河新生代玄武岩中含有丰富的地幔橄榄岩包体，详细的岩石学与矿物学研究显示，这些包体的主要岩石类型为尖晶石二辉橄榄岩-方辉橄榄岩，未发现石榴石橄榄岩。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了