成矿物质来源于上地幔和下地壳。
The metallogenic source material comes from the upper mantle and the lower crust.
由此说明，是下地壳环境的产物。
Thus it is indicated that they are the products of lower crust environment.
认为该岩体为下地壳或上地幔源，属同熔型。
The intrusive is believed to be syntectic type with its diagenetie materials derived from the lower crust and upper mantle.
地壳由多层介质组成，在下地壳中存在着低速层。
The crust is multilayered and there exists a low velocity layer in the lower crust.
最初形成的岩系的母岩浆，起源于麻粒岩相的下地壳。
The parent magma of several rock series formed earliest originated from the lower crust of granulite facies;
造成断裂分期活动的原因是藏东地区下地壳流体的存在。
The faulting might be attributed to the ascending lower crust-derived fluids after the Late Miocene epoch.
上地壳表现为脆性变形，中、下地壳为韧性的流动变形。
The middle crust and the lower crust is in the ductile field.
对地球引力的研究表明，在不寻常的负荷之下地壳和地幔会发生位移。
Studies of thegravity field of the Earth indicate that its crust and mantle yieldwhen unusual weight is placed on them。
中下地壳存在双层低阻构造层，上地幔表现为中、高阻互层。
The crust has two low resistivity and high-conductive, and the upper mantle has the character of normal or high resistivity together.
本文的研究成果再次证实了下地壳流体对大坪金矿成矿的贡献。
The results in this study reconfirmed that the lower crust fluid played an important role in the mineralization of Daping mine.
建立了南北地震带北段下地壳部分熔融几何形状和分布的模型。
Partial melt models in different geometrical configuration and distribution are established.
这种北倾的反射为松潘地块向西秦岭下地壳俯冲提供了地震学证据。
The north-dipping reflection constitutes seismic evidence for the northward subduction of the lower crusts of the Songpan block and West Qinling orogen.
上述资料表明本区的麻粒岩是形成于晚元古代前后的中下地壳产物。
The data mentioned above lead to suggest that the granulites are the representatives of middle to lower crust formed round about late Proterozoic era.
成矿机理是：区域板块运动使本区在侏罗纪末下地壳形成花岗岩浆熔融层。
The metallogenic mechanism is as follows: in the latest Jurassic, the melting layers of granite magma in the lower crust were formed by the regional plate movement.
一般来说，下地壳的成分接近于玄武岩，而上地壳的物质成分与花岗岩相似。
In general, the composition of lower crust is close to basalt and the composition of upper crust is similar to granite.
角闪岩包体来源于下地壳上部-中地壳下部位置，被上升岩浆带至地壳浅部。
The amphibolite xenoliths were from the upper part of lower crust and the lower part of middle crust, bring up to the shallow area of crust .
下地壳岩石的波速测定可以提供有关下地壳物质组成及物理性质的重要信息。
The measurements of the elastic wave velocity of lower crustal rocks may provide valuable information on the composition and physical properties of the lower crust.
我们的研究结果显示，一半的据称深源地震确实始于中部地壳和下地壳地区。
Our results show that half of the purportedly deep earthquakes are indeed originating from depths attributable to middle-crust and lower-crust regions.
岩石主要由幔源岩浆与中下地壳物质部分熔融形成的花岗质岩浆的混合形成的。
They were formed by mixing of the partial melting granitic magma of crust-derived material and mantle-derived basic magma.
多方面的结果表明，地震学方法为当前流行的下地壳流动模型提供了深部证据。
From other researching aspects, the seismological method provides the evidences to support the flowing model of low mantle, which are popular in the researchers.
总体北倾的莫霍面和同样北倾的下地壳结构记录了中生代扬子陆块的向北俯冲。
The North-dipping structure recorded northward subduction of the Yangtze block happened in Mesozoic.
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.
岩石圈具有温度高、强度低和强烈流变分层等特征，且下地壳表现为韧性流动变形。
The lithosphere beneath this area is associated with high temperature, low strength and intensive rheological stratification, and the lower crust is characterized by ductile flow deformation.
复杂的岩石类型和不同的形成条件表明女山的下地壳是由多期岩浆活动的产物组成。
Complex granulite facies xenolith types and distinct formation conditions indicate that the lower crust beneath Nushan was constructed by multi-periodic magmatism in different tectonic Settings.
贵州赤水东西向构造在基底内向东延伸至涟源地区，这种特征可能延深至中下地壳；
The Chishui EW strike structure within basement extends eastward to Lianyuan in Hunan province, which extends probably down to middle-lower crust.
形成晶体的碳质来源不均一，反映了中元古代华北陆台下地壳岩浆成分的不均一性。
Heterogenity of the carbon source implies the magma beneath the North China platform was not homogeneous at Late Mesoproterozoic.
最终判定玉龙矿床成矿物质主要来源于下地壳或上地幔，有少量上地壳围岩物质加入。
The major source comes from the lower or upper mantle, and the minor part from the wall rocks.
本文着重介绍了在中下地壳温度、压力条件下进行的几种岩石半脆性蠕变的实验研究结果。
This paper deals with some results of experimental study on semi-brittle behavior of rocks at the conditions relevant to the middle-lower crust.
本文着重介绍了在中下地壳温度、压力条件下进行的几种岩石半脆性蠕变的实验研究结果。
This paper deals with some results of experimental study on semi-brittle behavior of rocks at the conditions relevant to the middle-lower crust.
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