查询词典 mafic

The reddish thin film is observed around the margin of mafic minerals such as biotite, hornblende, and magnetite in parent materials with the microscope analyzing on some soil profiles.

在南极寒漠土壤中，红化作用表现为土壤剖面中游离铁含量的相对集中，土壤越老，土壤剖面染色的深度和程度也越强。

Meanwhile, they show high abundances of Sr and Ba and high Sr/Y and La/Yb. The volcanic rocks have varied and enriched Nd isotopic compositions ε(subscript Nd=-11~-17, which plot intermediately between the field of the ancient continental crust and the field of the enriched subcontinental lithospheric mantle. These geochemical signatures indicate that the volcanic rocks of the Tiaojishan and Donglingtai Formations were originated from a process of hybridization between the enriched mantle-derived mafic magma and the lower continental crust.

火山岩的钕同位素成分变化大，且相当富集ε(下标 Nd=-11~-17，都分布在古老下地壳和富集地幔之间，因此推断北京西山地区髫髻山组火山岩和东岭台组火山岩的形成与富集地幔起源的基性岩浆与古老下地壳组分相互作用有关。

The strong deformation gneisses and mafic rocks have the stretching lineation, the ultra-plastic flow mechanisms of the hornblendes and plagioclases.

强变形的片麻岩和镁铁质岩石发育拉伸线理，角闪石和斜长石表现出的动态重结晶、超塑性流动变形机制。

The Huashan—Guposhan granitoid belt consists of Tong'an, Huashan, Niumiao, Jinziling, Wuyangshan, Lisong and Guposhan granitoid bodies. Petrographycally, they are diorite, quartz monzonite, monzonitic granite and syenogranite. Dark mafic enclaves are very common. Their major emplacement ages are 160～163 Ma.

花山-姑婆山花岗质杂岩带由同安、花山、牛庙、金子岭、乌羊山、里松和姑婆山等岩体所组成，岩性为闪长岩、石英二长岩、二长花岗岩和正长花岗岩等，富含中基性暗色包体，主要侵位时代为160～163 Ma。

And the late Triassic bimodal association reflects the characteristics of intracontinental rift setting, the early Jurassic Raohe ultramafic - mafic rock - pillow lava association represent the environmental characteristics of oceanic island, magmatic arc association represent the characteristics of island arc and active continental margin with the background of the plate subduction, middle Jurassic syn-orogenic granodiorite-granite association reflects characteristics of matching and orogensis after continental accretion.

其中晚三叠世双峰式组合反映了板内裂谷成因特征，早侏罗世饶河超镁铁质-镁铁质岩-枕状熔岩组合代表了洋岛环境特征，岩浆弧火成岩组合代表了板块俯冲背景下岛弧和活动大陆边缘特征，中侏罗世同造山花岗闪长岩-二长花岗岩组合反映了陆缘增生后拼贴造山的成因特点，它们总体上代表了由被动陆缘裂向活动陆缘转化并最终发生陆缘增生带拼贴造山的一个演化过程，其间伴随有被动陆缘深海盆地沉积、活动陆缘弧后前陆盆地沉积和陆相类磨拉石建造

The Dabie Mountains are unique among ultrahigh pressure metamorphic terranes in having the most profound post collisional plutonism The Mesozoic shoshonitic and calc alkaline intrusive rocks can be divided into three groups with different isotopic ages, rock assemblages and chemical features Group I consists of late Triassic (~ 210 Ma) mafic monzodiorites It could have been generated by partial melting of enriched subcontinental lithosphere mantle due to slab breakoff Group II consists ma...

第 I组，主要由晚三叠世（约210 Ma）二长闪长岩辉长岩体组成，它可能是在板片断离过程中富集的大陆岩石圈地幔部分熔融的产物；第I I组，由中侏罗世－早白垩世（160～120 Ma）的角闪石英二长岩、黑云母二长花岗岩和正长花岗岩组成，主要是由幔源岩浆的分离结晶与地壳混染共同作用的产物；第II I组，以白垩纪（125～95 Ma）的花岗岩和花岗斑岩为代表，是在热穹窿作用过程中大别杂岩深熔作用和高度演化的产物。

The parental magma of the mafic dykes is probably derived from EMI, DM-PREMA and subcontinental mantle sources.

同位素和微量元素研究显示，岩浆源区主要与富集Ⅰ型地幔，弱亏损的常规地幔以及陆下岩石圈地幔有关。

The Indosinian granitoid belt in South Qinling, Central China, is lithologically composed of diorite, monzodiorite, tonalite, granodiorite and granite, as well as widely distributed mafic microgranular enclaves and dykes within the intrusions.

南秦岭印支期花岗岩带的岩石组合包括闪长岩、二长闪长岩、英云闪长岩、花岗闪长岩和花岗岩等，岩体内广泛存在镁铁质微粒包体和脉体。

This paper describs the spectral effects in deeply-weatherad Mafic, Ultrabasic, and Felsic Rocks in arid terrains of the central Western Australia.

本文以西澳大利亚中部依尔干地区为例，研究了该地区深度风化的镁铁质、超基性岩和长英质岩石对光谱的影响。

There are high-velocity density layers in the lower crust, which would be represent crust-mantle mixing layer formed by mantle material upwell The model of lithosphere subduction and underplating of mafic magma is supported by all geophysic data

在下地壳下部存在高速致密物质层，可能代表了上地幔物质上涌形成的壳-幔混合层，上述地球物理资料均支持岩石圈消减作用和玄武岩浆底侵作用。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。