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岩浆

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The hypo-volcanic crytoexplosion Breccia rock body is formed of granite magma, which is rise to the lower of the earth s crust along the east-western shear zone and exploded below the Archean fundus rock. The felstone vein and the hypo-volcanic crytoexplosion Breccia rock are from the same magma source, and are formed in the different evolution stages.

香炉碗子金矿区分布的次火山隐爆角砾岩体是由花岗质岩浆沿东西向脆~韧性剪切带上升到地壳浅部隐爆太古代基底岩石所形成,霏细岩脉与次火山隐爆角砾岩来自同一岩浆源,为同一岩浆活动不同演化阶段所形成的。

Magma source original from remelting of the Dabie gneissic complex-magma intrusion and condensation stage under the extension system-potassic alternation and initial magmatic hydrothermal mineralization stage-meteoric water adding into the middle and latter mineralizing stages.

大别片麻杂岩重熔形成岩浆源—伸展体制下岩浆侵入冷凝阶段—钾化及初始岩浆热液成矿阶段—大气降水加入的中后期成矿阶段。

The comparative studies of lithogeochemistry for the volcano-intrusive complexes both from Jiulongzhang and from xiangshan reveal that the chemical compositions of the volcano intrusive complexes in the two areas are very close, and the trace element spidergrams and REE patterns basically coincide with each other. It is also shown that the two volcano-intrusive complexes have the same source features and the active continental margin tectonic settings. At the same time, it is found that, from early volcanic magma activities to later intrusive magma activities, the content of SiO2 and the Rb/Sr ratio decreased, on the contrary, the content of MgO and the ratios of K/Rb, Ba/Rb and LREE/HREE increased. It is shown that the hypabyssal or ultra-hypabyssal intrusives are not the products of the volcanic magmatic differentiation.

两地区的火山-侵入杂岩的岩石化学成分及其变化特点极为相近,微量元素蛛网图和稀土配分型式也基本一致,它们具有相似的岩浆过程和统一的活动陆缘构造背景;同时,从早期火山岩浆活动到晚期浅成-超浅成岩浆侵入活动,其w(SiO2)和w/w的值降低,而w以及w/w、w/w和w/w的值增高,晚期浅成-超浅成侵入岩与早期火山岩没有直接的分异演化关系。

Following evidences indicate that lherzolite and garnet pyroxenite xenoliths in basalts are captures of mantle fragments when host magma ascending: crystallizing temperatures and pressures of cpx megacrysts and some phenocrysts in host magmas are greater than equilibrium temperatures and pressures of xenoliths; calculated REE partition pattern of assumed equilibrium melts is not comparable with that of studied host basalt rocks; olivine in xenoliths is not in equilibrium with basalt rocks.

寄主玄武岩的单斜辉石斑晶—熔体平衡温度高于石榴石二辉橄榄岩和石榴石辉石岩包体的平衡温度,单斜辉石巨晶和部分斑晶—熔体平衡压力大于包体平衡压力,寄主碱性玄武岩的稀土配分型式和所计算的与尖晶石二辉橄榄岩包体平衡的熔体的稀土配分型式不同,包体橄榄石与寄主岩浆之间的Fe-Mg交换系数低于0.30,均表明包体与寄主玄武岩浆之间不存在平衡关系,因此,包体是被寄主玄武岩浆捕虏的上地幔碎块。

There is a long standing debate about the magma origin of Lutao. Two different models of crust contamination and source contamination are proposed. Combining helium results with strontium ratios of Lutao lavas, it shows that Lutao arc magma has experienced approximately 5% of crust contamination.

绿岛岩浆成因长久以来存在有地壳混染或是源区混染的争论,本研究利用绿岛斜辉石及堇青石巨晶的3He/4He比值及其母岩浆的87Sr/86Sr比值,得到了绿岛岩浆经历过5%左右地壳混染的结果。

The late bearing-ore magma formed by the differentiation and immiseibility of magma may form the intrusive iron body, but more iron deposits attribute to skarn type resulted from the metasomatic reaction between intrusive magma and stratum.

岩浆分异或不混溶作用形成的晚期含矿岩浆可以形成矿浆贯入型铁矿,更多的是侵入岩浆与地层发生交代反应形成的矽卡岩型铁矿。

Petrographic and petrologic characters of granitoids and its mafic microgranular enclaves in middle Gangdis〓 belt show that both of them are of magma origin, coexisting marie and felsic magmas, which may be represented by microgranular enclaves and granitoids respeetely, favour magma mixing model.

冈底斯带中段花岗岩及其中铁镁质微粒包体的岩相学、岩石学特征表明花岗岩及其中的包体都是岩浆成因的,两者所代表的长英质、镁铁质岩浆表现为岩浆混合关系。

By study of the medium-acid plutonic rock and its maric microgranular enclaves of the middle Gangdis〓 belt, this dissertation will discuss the characteristics of the Gangdis〓 medium-acid plutonie magmatism and the crust/mantle dynamics during uplifting of Tibetan Plateau from the sight of material and energy, and use'lithoprobe'to connect crust and mantle interaction and other geologic events.

中、新生代青藏高原岩浆活动强烈,沿雅鲁藏布江缝合带形成了著名的冈底斯构造—岩浆带,本篇博士论文以冈底斯带中酸性侵入岩及其中铁镁质微粒包体为研究重点,探讨冈底斯带中酸性侵入岩浆活动特征,从物质和能量的角度论述了高原隆升过程中的壳/幔动力学过程,利用&岩石探针&将壳/幔之间的相互作用和地质事件有机地结合起来。

The comparison of petrology, lithofacies, petro-geochemistry and tectonic environment of the rapakivi granite both from Qinling-Kunlun and world shows that the rapakivi granite has same or consistent characteristics: rapakivi structure, sub-aluminous, high-potassic, alkali-rich magma, two-peak magma assemblage and formed in post-collision environment. However, there are some certain differences in some geochemical index, forming age of magma, and geotectonic position of outcropping.

通过秦岭-昆仑造山带中的环斑花岗岩同世界元古宙环斑花岗岩的岩石学、岩相学、岩石地球化学和构造环境等方面的对比研究发现,二者具有相同或一致的特征:具环斑结构,属准铝、高钾、富碱岩浆,具双峰式岩浆组合,形成于后碰撞环境,但其地球化学的某些指标、岩浆形成时代和出露的大地构造位置等有一定差异。

Magma (Plurals: magmas and magmata ) is molten rock located beneath the surface of the Earth (or any other terrestrial planet ) that often collects in a magma chamber .

岩浆(复数:岩浆和magmata )是熔融岩位于下方的地球表面表示,经常收集在一个岩浆房。

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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。

The lawyer's case blew up because he had no proof.

律师的辩护失败,因为他没有证据。