It seems possible that a sinking current of cooled mantle material on the upper side of the plate might be the cause of such deep basins.
看来,板块上侧冷却的地幔物质的下沉流可能是造成这种深盆地的原因。
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.
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。
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.
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。
The occurrence of pargasite reflects the participation of the upper mantle fluids and the metasomatism.
角闪石的出现反映上地幔流体的渗透及交代作用。
These levels are comparable to the 500 to 1000 parts per million of water in the Earth's upper mantle.
这一水分含量堪比地球的上层地幔500到1000ppm的水含量。
Serpentinite is a dark green mineral used in decoration and jewelry. In nature, it is formed when sea water infiltrates into Earth's upper mantle, at depths that can reach 200 km in subduction zones.
蛇纹石是一种用来珠宝装饰的深绿色矿物,它形成于俯冲带,当海水渗入到地球上地幔的环境中,形成深度可达200km。
That is one of the possible reasons why there is no "high-conductive layer of the upper mantle" in the MT profile from Yingxian to Shanghe, which images the asthenosphere electrical characters.
这也许正是根据现今应县—商河剖面上大地电磁的探测结果看不出来存在通常所说的反映“软流圈”电性特征的“上地幔高导层”的原因。
The local horizontal dislocation reaches about 4 km in the medium at the focal depth, where the upper mantle rises.
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。
In the crust and upper mantle, the density is characterized by lateral and vertical heterogeneity.
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。
The results show that the crust and upper mantle structures present obvious lateral and vertical inhomogeneity.
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 indicate that the continental crust and upper mantle exhibit significant differences in reflection characteristics, which are related to tectonic units and regions.
研究成果表明,大陆地壳和上地幔的反射特征具有显著的差异,这些差异反映了不同的构造单元和状态。
The volcanic rocks resulted from upper mantle in Mesozoic group, and volcanic rocks from lower crust in Palapene system.
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。
Until now, some studies showed that major source of ore-forming materials come from wall rock or upper mantle.
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。
Earthquakes occur in the crust or upper mantle, which ranges from the earth's surface to about 800 kilometers deep (about 500 miles).
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。
Upper mantle uplift is likely associated with upward migration of mantle material.
地幔上隆可能意味着地幔物质向上运移。
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.
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 upheaval zone in upper mantle is the primary factor controlling the distribution of gulch-gold mines and lode gold mines.
上地幔隆起区是控制砂金矿和岩金矿面式分布的主要因素。
It is a porphyry copper-silver-tin deposit that occurs in the transitional crust and was formed by derivatives of the lower crustal-upper mantle transitional magma.
它是分布于过渡性地壳上的、由起源于下地壳—上地幔的过渡性岩浆的衍生物形成的斑岩型铜银锡矿床。
Deformation events and thermal textures of the upper mantle in this region show that Fujian and the Penghu Islands are characterized by a similar rheological state of the upper mantle.
本区上地幔变形事件和热结构特征表明,福建东部和台湾澎湖列岛一带具有十分相似的上地幔流变学特征。
Scientists call this layer of crust and upper mantle the lithosphere.
科学家称这层地壳和上部地幔为岩石圈。
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。
Like the CORE of earth, the mantle can also be divided into two concentric layers, the lower mantle and the 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。
Regional seismic wave carries lots of information about structural variations in the crust 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。
The upper mantle consists of lherzolite, and it seems that there is a transition zone between spinel and garnet lherzolites.
上地幔由超镁铁质的二辉橄榄岩组成,在尖晶石二辉橄榄岩和石榴石二辉橄榄岩之间有一过渡层。
In the upper mantle, or crust, there is water hiding in the tiny pores of certain "hydrous" minerals - in clay, in mica - and when conditions are right, that water can be squeezed out.
在上地幔或者地壳中,有一些藏身于含水矿物质——黏土和云母——的微孔中的水。一旦条件合适,水就可以释放出来。
Isostatic gravity anomaly shows the character of middle - short wavelength, reflects unbalance of crust and upper mantle and dynamical character of substance adjusting.
均衡重力异常显示出中短波长特性,反映的是地壳上地幔物质分布的失衡和物质调整的动力学特征。
Isostatic gravity anomaly shows the character of middle - short wavelength, reflects unbalance of crust and upper mantle and dynamical character of substance adjusting.
均衡重力异常显示出中短波长特性,反映的是地壳上地幔物质分布的失衡和物质调整的动力学特征。
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