查询词典 petrological

This, combined with petrological and regional geological data, has led the authors to believe that Shexian ophiolites were formed in a back-arc basin environment.

结合岩石及区域地质资料，歙县蛇绿岩应形成于弧后盆地环境。

This paper discusses the merits and shortcomings of the estimation methods previously used for the degree and mass of magma degassing in the volcanic eruption. On the basis of these methods, the authors propose a new petrological method for the estimation performed at various stages in the process of volcanism, and illustrate the detailed steps as exemplified by the Jingpohu Holocene volcanic eruption.

本文对前人使用的火山喷发过程中岩浆脱气率和脱气量的估算方法进行了评述，并介绍了如何利用岩石学方法估算火山喷发不同阶段岩浆脱气率和脱气量的具体步骤，同时以镜泊湖地区全新世火山为例说明利用该方法估算的具体过程。

In this section, the distributions of trace elements among vitrinite, inertinite and minerals, as well as their organic affinities are calculated by the introduction of Solari method and by the petrological analysis to all fractions obtained in the sink-float experiments.

通过浮沉试验，结合煤岩学分析，运用Solari方法，首次计算了不同地质背景煤中各种微量元素在镜质组、惰质组及矿物中的分配比例，并计算了微量元素的有机亲和性。

In order to know the conditions of shallow tight sand gas reservoir formation,the gas-source rock was studied in Dongliang district in the Fuxin basin on the basis of organic petrological and geochemical study.

为了解阜新盆地浅层致密砂岩气成藏条件，应用有机岩石学和有机地球化学方法，对气源岩特征开展研究。

Besides, the samples' petrological characteristics are compatible with those of the Xia'ertai Group of the neighboring Daheishan Horst and we suggest that the samples are probably the extent of the Daheishan Hurst.

另外，样品的岩石学特征和临近大黑山条垒下二台群具有一定的可比性，推测文中样品可能是大黑山条垒在盆地内的延伸。

Recent studies of abyssal peridotites show that they are not melt residues of batching or fractional melting of pyrolite directly after melt extraction of MORB. Petrological studies of peridotites from Luobusa ophiolite massif also indicate that the mantle peridotites are not simple residues of primary pyrolite either.

罗布落蛇绿岩橄的镜下观察和岩石化学资料也证明，它不是原始地幔岩经局部熔化后的残余物，而且由来自更深层的地幔过渡带的硅酸盐超高压矿物底辟上升经熔取出玄武质熔体后，再次局部熔化后的残余物。

The presence of thinned lithosphere in the Central and Western NCC together with petrological and geochemical data suggest that lithospheric remobilization and thinning may have affected the NCC much further to the west than previously thought.

岩石圈薄于100 km的中、西部裂陷区可能与先前存在于岩石圈中的局部构造薄弱带相联系。

During the 1∶200 000 regional geological survey of the Songleng and Zhuwagen Sheets, Tibet, the author studied the geological mineral deposit, petrological, mineralogical, geochemical characteristics of serpentinic jade in the Guiyala area, Zogang county, which indicates that serpentinic jade was formed by the action of magmatic hydrothermal solutions on the Xiongen Co Formation dolomite.

在西藏1∶20万松冷幅、竹瓦根幅区域地质调查中，对左贡县桂亚拉地区发现的岫玉矿的地质特征、矿床特征、岩石、矿物和地球化学特征研究表明，雄恩错组的白云岩受岩浆热液作用形成的岫玉，为研究西藏非金属矿床成矿规律和构造演化及寻找玉石提供了新的基础资料。

For Southwestern Margin of Aqikekule Lake ophiolite, their field geological, petrological, minerological, petrochemical and geochemical characteristics show that:① it outcropped as tectonic slices along the near west-to-east strike Kunzhong fault and is composed of metamorphic perodotties, cumulates and volcanic rocks, in which, chromites are distributed in the upper part of metamorphic peridotites as pods, or in the lower part of cumulates as near-strata;② metamorphic peridotites include serpentinites, chromite-bearing serpentinites, chlorite-epidote schists and chromitites, of which, chromitites have nodular and orbicular structure, and cumulates include pyroxenits, serpentinites, chromite-bearing serpentinites, chromites and metamorphically mafic rocks and only basalts are seen in volcanic rocks;③ Cr# of chromites suggest that they formed in the SSZ and Al〓O〓 and TiO〓 of metamorphic peridotites also suggest SSZ environment;④ metamorphic peridotites have V type and enriched LREE patterns, cumulates have from strongly depleted LREE, flat REE to enriched LREE patterns with universally striking positive Eu anomalies and basalts show flat REE or slight enriched LREE patterns with no Eu anomalies;⑤ trace element and Sm-Nd isotope characteristics of metamorphic peridotites imply their strikingly heterogeneous mantle character ε〓(t+4.39～+26.20 and later Nb, Ta fertilization;⑥ trace element characteristics of basalts and their tectonic diagrams show they probably formed in the rifted island arc or back-arc basin environment.

对阿其克库勒湖西南缘蛇绿岩，野外地质、岩石学、矿物学、岩石化学以及地球化学等特征表明：①该蛇绿岩以近东西向、沿昆中断裂呈构造岩片出露，由变质橄榄岩、堆晶岩和火山岩三个单元组成，其中见铬铁岩呈豆荚状产于变质橄榄岩的上部，或呈似层状产于堆晶岩的下部；②变质橄榄岩包括蛇纹岩、含铬铁矿蛇纹岩、绿帘绿泥片岩和铬铁岩等类型，其中，豆荚状铬铁矿具有结核状构造和球状构造，堆晶岩包括辉石岩、蛇纹岩、含铬铁矿蛇纹岩、铬铁岩和变质基性岩等类型，火山岩仅见玄武岩；③铬铁矿的Cr#表明其形成在俯冲带，变质橄榄岩的Al〓O〓和TiO〓成分也指示了SSZ环境；④变质橄榄岩的稀土配分型式见V型和LREE富集型两种型式，堆晶岩表现出从LREE强烈亏损、REE平坦分布到LREE富集的配分特征，并且普遍具有醒目的正Eu异常，玄武岩的稀土配分型式表现为平坦型或LREE略富集，无Eu异常；⑤变质橄榄岩的微量元素及Sm-Nd同位素特征指示了其地幔的显著不均一性ε〓(t为+4.39～+26.20以及Nb、Ta在后期的富集；⑥玄武岩的微量元素特征及构造图解表明其可能形成在裂谷岛弧或不成熟的弧后盆地环境。

Petrological and geochemical characteristics of alkali-rich porphyries suggest that magmas might not be generated from subducted oceanic slab, but likely from the base of thickened crust, corresponding to eclogite-facies.

富碱斑岩产出的地质背景及岩石学和地球化学特征表明，富碱斑岩并非起源于俯冲的大洋板片，而是源于加厚地壳的底部，源区为榴辉岩相岩石。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。