由于靠近地核，地幔底部的岩石比上地幔岩石的温度高得多。
Because of its proximity to Earth's core, the rock at the base of the mantle is much hotter than rock in the upper mantle.
当储层足够大时，这种炽热岩石的一个球体强行通过上地幔上升到地球表面，在地形上形成一个宽阔的隆起。
When a reservoir is sufficiently large, a sphere of this hot rock forces its way up through the upper mantle to Earth's surface, creating a broad bulge in the topography.
角闪石的出现反映上地幔流体的渗透及交代作用。
The occurrence of pargasite reflects the participation of the upper mantle fluids and the metasomatism.
最后，着重讨论了上地幔与全地幔对流的论争。
The issue of upper vs whole mantle convection is critically discussed.
板块运动是地壳和上地幔变形的主要动力来源之一。
Plate motion is one of the major dynamic sources for crustal and mantle deformation.
本文讨论了地壳和上地幔中韧性剪切带及其中的变形岩石。
This paper deals with the ductile shear zones and their deformed rocks in the crust and upper mantle.
地壳上地幔密度不均匀性特征在纵向和横向上都是很明显的。
In the crust and upper mantle, the density is characterized by lateral and vertical heterogeneity.
古地温线特征表明，断裂带之下的上地幔具有高的大地热流值。
Paleogeotherm indicates high thermal flow of the upper mantle below the Tan Lu fault zone.
结果表明，该剖面的地壳-上地幔密度分布具有明显的不均匀性。
The result shows that the density distribution of the crust and upper mantle along this profile is evidently heterogeneous.
结果表明，地壳上地幔结构在纵向和横向上具有明显的不均匀性。
The results show that the crust and upper mantle structures present obvious lateral and vertical inhomogeneity.
地幔上升流起源于核幔边界，主要表现在地幔中部和上地幔下部。
The mantle upwelling is originated from core-mantle boundary and mostly presents in the middle mantle and lower part of upper mantle.
碳质球粒陨石星子被吸积于原始地球上地幔表层，形成原始富碳区。
Carbonaceous chondrite planetesimals were adsorbed on the mantle surface of the primitive earth, forming primitive carbon-rich areas.
文中还提出了在本区继续开展地壳与上地幔细结构研究的任务与设想。
The paper also proposes the tasks and tentative ideas to continuously conduct researches on crustal and upper mantal fine structures in this region.
目前，有关研究认为此类矿床成矿物质主要来源于矿床的围岩或上地幔。
Until now, some studies showed that major source of ore-forming materials come from wall rock or upper mantle.
就像地球的核部一样。地幔也可分为两个同心圆圈层，下地幔和上地幔。
Like the CORE of earth, the mantle can also be divided into two concentric layers, the lower mantle and the upper mantle.
区域地震波携带着大量的信息，可以很好地反映地壳和上地幔结构的变化。
Regional seismic wave carries lots of information about structural variations in the crust and the upper mantle.
岩浆起源于上地幔，属于拉斑玄武岩系列，发生过金属硫化物的熔离作用。
The magma originated from the upper mantle and belongs to the tholeiitic series which has undergone immiscible separation of metal sulfide.
地震发生在距离地表约800公里深处(约500英里)地壳或上地幔处。
Earthquakes occur in the crust or upper mantle, which ranges from the earth's surface to about 800 kilometers deep (about 500 miles).
阳原幔源包体包括二辉橄榄岩和方辉橄榄岩，是华北西部上地幔的直接样品。
The xenoliths in the yangyuan, including iherzolite and harzburgite, represent the direct samples from the upper mantle beneath western north China craton.
研究由玄武岩岩浆携带到地表的幔源橄榄岩包体可以获得上地幔的许多信息。
In North and Northeast China widely developed mantle-derived peridotite xenoliths, which were carried to the surface by alkali basaltic magma.
本文论述了上地幔各向异性的参数描述和主要证据，以及与地球动力学的关系。
The elastic parameters, their main evidences and relevance to the earth's dynamics of the anisotropy of the upper mantle are discussed in this paper.
内地壳和上地幔S波速度结构与强震的关系和强震活动的深部背景进行了探讨。
Study to the relation between strong earthquakes and S-wave velocity structures in the crust and upper mantle in the studied area.
在震源深度附近的介质中，局部水平错动可达4公里左右，上地幔顶部在此隆起。
The local horizontal dislocation reaches about 4 km in the medium at the focal depth, where the upper mantle rises.
本区火山岩应主要来自上地幔，而房身泡组源区相对较浅，可能有下地壳物质混人。
The volcanic rocks resulted from upper mantle in Mesozoic group, and volcanic rocks from lower crust in Palapene system.
本文详细研究了台湾澎湖列岛上地幔幔源包体的变形结构、组构和橄榄石位错构造。
This paper deals with deformation textures, petrofabrics and dislocation microstructures of olivine from the mantle-derived xenoliths in the Penghu Islands, Taiwan.
上述三种类型地壳结构的差异，主要是由上地幔物质向地壳的垂直迁移程度不同造成的。
The difference between different crustal structures may be largely due to the difference in degree of vertical migration of-materials from the uppermost mantle into the crust.
岩石铅同位素构造演化模式判别结果表明，煎茶岭超基性岩石的成岩物质来自亏损上地幔；
Projecting the lead isotope compositions on the Pb tectonic evolution model, the result indicates that the raw material of Jianchaling ultrabasic rock coming from the deplete upper mantle.
这表明岩浆起源于受俯冲组分改造或影响的上地幔，且地幔源区存在明显的化学不均一性。
It shows that the magma was derived from the upper mantle which was altered or affected by subduction composition, and the mantle source was of chemical inhomogeneity.
这表明岩浆起源于受俯冲组分改造或影响的上地幔，且地幔源区存在明显的化学不均一性。
It shows that the magma was derived from the upper mantle which was altered or affected by subduction composition, and the mantle source was of chemical inhomogeneity.
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