查询词典 magmas

The collision and orogenesis, the intrusion of magmas and the formation of ore deposits were occurred sequentially.

两者在时间上的连续性，进一步说明了成矿作用与构造时间的耦合，碰撞造山-岩浆侵位-矿床的形成是一统一的连续过程。

The mineraliztion is later than the activity of the magmas. And the deposits are formed in early Yanshan epoch, just after the collision of the continents and the orogenesis.

综合矿床的成矿年龄和与其有空间关系的岩体的成岩年龄可以看出，成矿年龄不同程度地小于成岩年龄，表明矿床形成于燕山早期，稍滞后于造山带陆-陆碰撞和陆内造山作用。

The intrusion of granitic magmas accompanied by the orogeny is an essential condition for the forming of this type of gold deposits.

因此，该地区的金矿找矿方向也应该是在区域性的逆冲推覆构造带、蚀积岩系及同碰撞花岗质岩石"三位一体"的交接部位及其附近。

The petrogenesis of both the HT and LT magmas was further complicated by contamination of crust and lithospheric mantle.

HT和LT岩浆的岩石成因又进一步为地壳和岩石圈地幔的混染作用所复杂化。

They have A/CNK values of 0.9～1.2, suggesting aluminum saturation or ersaturation, and are enriched in LREE and LILEs and depleted in HFSEs. Their δEu values are 0.11～0.32, evidently indicating plagioclase fractional crystallization.(87Sr/86Sr)i ratios and εNdvalues are 0.707?9～0.716?1 and -6.90～-7.70 for volcanic rocks, and 0.7086～0.7098 and -7.10～-7.68 for quartz syenitic porphyrite, respectively, implying that all the igneous rocks from the Yandang Mountain were evolutional products of co-magmas, and derived mainly from the crust, mixed however with mantle components.

岩石富集轻稀土元素和大离子亲石元素，相对亏损高场强元素；δEu值为0.11～0.32，表明岩浆经历了以斜长石为主的强烈结晶分异作用；火山岩(87Sr/86Sr)i为0.707 9～0.716 1，εNd为-6.90～-7.70，中央侵入体石英正长斑岩(87Sr/86Sr)i为0.708 6～0.709 8，εNd为-7.10～-7.68，表明它们是同源岩浆不同阶段分异演化的产物，物质来源主要为陆壳，但也有地幔物质参与。

Its volcanic geological formation is complicated, varying from hard lava magmas to weathering pyroclastic debris.

火山形成的地层非常复杂，从坚硬的火山熔岩到松软风化的火山碎屑堆积物都有存在。

In this study, EPMA and LA-ICP-MS were used to determine the major and trace element concentrations, respectively, of apatites from Transhimalayan granitoids. The results indicate that F, Mn, Sr and REEs in apatites generally show good correlations with compositions of their host magmas and thus have high potential to be utilized as petrogenetic tracers. More specifically, F and Mn contents in apatites are covariant with the aluminosity of the host rocks so that can be used as an indicator for magma differentiation. Combining with Sr and REE data, which show significant variations in apatites from different rock types, these elements may be furthermore used to construct "discrimination diagrams" for more detailed investigations of complex petrogenetic processes such as magma mixing and compositional heterogeneity.

本研究中，电子微探以及雷射烧蚀感应耦合电浆质谱术分别被用以量测藏南火成岩中磷灰石的主量与微量元素含量，微区分析的结果显示，磷灰石的氟、锰、锶以及稀土元素均与岩浆源成分展现良好的对比关系，揭示了它们应用在岩石成因示踪上的优秀潜力：其中，磷灰石氟、锰含量的变化与原岩的铝饱和情形息息相关，因此可以作为岩浆分异程度的指标；而锶以及稀土元素则在不同岩石类型来源的磷灰石中展现了明显的丰度变化，因此综合这些元素将有机会进一步建立岩浆来源的「鉴别图」，甚而以此讨论岩石成因，例如：岩浆混合与源区组成的不均一性。

The disintergration of the Tekesi Daban batholith provides important constraints on the magmatic evolution of the Paleozoic granitic magmas and the related ore formation.

且具有不同的成矿专属性，并在新解体出的早石炭世浅成斑岩-玢岩组合中发现了良好的钼矿体，因而具有重要的研究和找矿意义。1区域地质概况特克斯达坂一带属

The content of major elements, such as Fe, Mg, Ca and Al, and trace elements, such as Ti, Sr, Ni, Cr and Co, is linearly correlated to that of SiO2, which suggests that the different volcanic rocks in the basin should be the product of fractional crystallization of congenetic magmas. The parental magma may be generated by the partial melting of an enriched mantle wedge formed by the metasomatism of slab-derived fluids in an active continental margin tectonic setting.

FeO、MgO、CaO、Al2O3、TiO2等主元素和Sr、Ni、Cr、Co等微量元素的含量与SiO2含量呈明显的线性相关关系，表明该区火山岩可能是同源岩浆分异的产物，岩石形成於活动大陆边缘的构造环境，并由遭受消减板块流体交代的富集地幔楔部分熔融而形成。

Neoproterozoic Baoxing Complex in middle to lower metamorphic grade, located in western margin of Yangtze Craton, consists mainly of metamorphic gabbroic, dioritic gneisses, tonalitic and granodioritic gneisses, and massive monzogranites The studies of petrochemistry and SmNd isotopes of Baoxing Complex reveal that the gabbroic and dioritic magmas came from a congenetic magma derived from the partial melting of spinel lherzolites in depletive mantle, and that the magma was intensively contaminated by crustal materials during its emplacement The tonalitic and granodioritic magma were derived from the partial melting of metamorphic basalts in the lower crust And the monzogranitic magma was formed from partial melting of metagreywacks Integrating the lithological association, their trace elements, SmNd isotopic characteristics and petrogenesis, the Baoxing Complex must likely have been emplaced in an island arc tectonic background at the Neoproterozoic active continental margin of Yangtze Craton

位于扬子克拉通西缘的新元古代宝兴杂岩主要由中低级变质的辉长质片麻岩、闪长质片麻岩、英云闪长质到花岗闪长质片麻岩和块状二长花岗岩组成。岩石地球化学和SmNd同位素特征表明，辉长质片麻岩和闪长质片麻岩为同源岩浆演化序列，原始岩浆起源于亏损地幔尖晶石橄榄岩的部分熔融，在上升和侵位过程中受到了地壳岩石强烈混染。英云闪长质和花岗闪长质岩浆形成于下地壳玄武质岩石部分熔融，而二长花岗质岩浆形成于杂砂岩的部分熔融。综合分析宝兴杂岩的岩石组合、微量元素和同位素特征，该杂岩体最有可能形成于新元古代活动大陆边缘火山弧构造背景，并可能经历了碰撞过程。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。