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lithosphere相关的网络例句

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与 lithosphere 相关的网络例句 [注:此内容来源于网络,仅供参考]

The lower degrees of mantle melting of the HT and LT2 lavas may be the result of a relatively thicker lithosphere and lower geotherm.

HT和LT2熔岩的地幔熔融程度较低,可能是与地幔柱边部的岩石圈相对较厚和地热较低有关。

Yi-Shu fault is a lithosphere fracture belt with a long history, which formed a rift fracture system by the effect of the Kula plate and the Pacific plate movement during Mesozoic.

沂沭断裂带是一条岩石圈断裂,有着悠久的演化历史,在中生代受库拉板块和太平洋板块运动作用,发展成为裂谷式断裂系统。

Fault controlled not only the evolution and the transverse inhomogenity of regional tectonics, but also the laminary structure of the earth crust-lithosphere.

断裂以不同形式产出于地壳~岩石圈的表层、中深层和深层,其规模小到以毫米计或更小尺度,大可到全球范围。

The intense fractionation of REE and the obvious depletion of HREE suggest that these volcanic rocks were derived from garnet lherzolite of the mantle in the continental lithosphere.

稀土元素的强烈分馏以及重稀土元素显著贫化,意味著这些火山岩源自於大陆岩石圈地慢的石榴石二辉橄榄岩。

Bounding in eastern Fenghuang, similar to Te, the crustal thickness can also be divided into two sections: northwest high value section and southeast low value section, and there is roughly a positive correlation between crustal thickness and effective elastic thickness of the lithosphere, namely higher crustal thickness value corresponding to relatively higher Te value and lowerer crustal thickness value to relatively lower Te value, which reflects that the lithospheric strength is directly proportional to the crustal thickness in regional tectonic background.

以凤凰东为界,与Te值类似,地壳厚度也可以宏观分为南东低值段与北西高值段,地壳厚度大体上与Te值呈正相关关系,相应较大地壳厚度对应较高的Te值,较小地壳厚度对应较低的Te值,说明在大的区域构造背景下,岩石圈强度与地壳厚度成正比。

The process and features of environmental change over the last 500yrs are related to the problems of the machinism and tendency among atmosphere,lithosphere, and biasphere.

500年环境变化的过程与特征涉及到大气圈、水圈、岩石圈、生物圈的变化机制和趋向等问题,研究本题目的在于寻求预测环境变化的途径,恢复和重建500年来干旱区自然环境的演变过程。

Kalamaili suture zone is an important plate boundary in north Xinjiang, and there are plenty of Neopaleozoic volcanic rocks around itThese volcanic rocks are enriched in LILEs and relatively depleted in HFSEs, and they are also characterized by high Nb, Zr, TiO2 contents and Zr/Y, Nb/Y ratios, and depleted SrNd isotopesThe characteristics of these volcanic rocks suggest that they were produced in postcollisional periodThe postcollisional volcanic rocks around Kalamaili suture zone become younger from west to east, which indicates that this suture zone entered postcollisional period gradually from west to east, and reflects that the Kalamaili Ocean had been closed gradually from west to eastAs to the Kalamaili suture zone in postcollisional period, the lithosphere extended and thinned, and the asthenosphere materials upwelled and melted partially, and intensive mantle convection occurred, leading to a plenty of mantlederived magmas underplating the suture zoneThe lithospheric mantle metasomatized by fluid in subduction period melted partially under decompression and high temperature, the resulting melts contaminated the underplating asthenospheric materials, and the erupted lavas became the Neopaleozoic postcollisional volcanic rocks

卡拉麦里缝合带是北疆的一条重要界线,沿该带广泛发育晚古生代火山岩。这些火山岩具有LILE相对富集、HFSE相对亏损的特征,且具有较高的Nb、Zr、TiO2含量和Zr/Y、Nb/Y比值,SrNd同位素主要表现出亏损的特征。综合分析表明,这些火山岩形成于后碰撞期。对卡拉麦里缝合带而言,从西向东后碰撞火山岩的时代逐渐变新,表明该缝合带从西向东逐渐演化进入后碰撞期,这从侧面反映了卡拉麦里洋盆是从西向东逐渐关闭的。对卡拉麦里缝合带而言,在后碰撞期,岩石圈伸展减薄,软流圈地幔物质上涌并发生部分熔融,加上地幔对流作用强烈,使得缝合带下产生了大规模的幔源岩浆底垫;先前在洋壳消减期被流体交代提取过的岩石圈地幔也在低压高温下发生部分熔融,形成的熔体混染了底垫的软流圈物质并喷发,形成了晚古生代的后碰撞期火山岩。

We analyzed the tectonic differences and deep geodynamic characteristics based on the tomographic results, which show high velocity anomalies at the uppermost mantle beneath the northeast SCS, and depict the lithospheric mantle extension from South China continent to marginal sea. Because of the low temperature and thick lithosphere beneath the northeast SCS, it seems no magma intruded from mantle, so we inferred that the rift may only occur in the crust rather than extend to the upper mantle, which shows the nature of nonvolcanic continental margin.

结果表明:南海东北部表现出陆架地区的岩石层特性,属于华南大陆向海区的延伸,岩石层厚度较大,现今不存在大规模的地幔热流活动,推测大陆边缘张裂作用仅限于地壳内部而没有延伸进入上地幔,具有非火山型大陆边缘的深部特点。

Then on the basis of study results about regional geology, ophiolite,structure,and seismic depth-sounding in the Qinghai-Tibet plateau and its adjacent areas, this paper promotes a new model to interpret tectonics.This new model thinks that in this large area there was not simple B-type subduction which is accompanied with ocean-floor spreading at mid-ocean ridges to form ocean basins appearing as new oceans and new ocean plates,but intercontinental seas due to ocean-floor spreading,obduction of ophiolite tectonic slice as oceanic crust slabs and complex A-type subduction of continental lithosphere slabs.

而后又以青藏高原及邻区为例,根据区域地质、蛇绿岩和地质构造研究的成果,特别是地震测深研究的成果,详细地论证了本区不存在有大洋中脊扩张成为大洋盆地的新大洋和大洋板块简单的B型俯冲模式,但存在有海底扩张的陆间海和海洋地壳板片的仰冲以及大陆岩石圈板片复杂的A型俯冲新模式。

This orogenetic process is a series of completed tectonic evolution, reflecting the initial orogenic magma underplating and magma mixing, the peak orogenic strong interaction between the crust and mantle, the late orogenic lithosphere started to delaminate and the post—orogenic extensional tectonic setting.

该造山过程为一套完整的演化序列,反映了初始造山的岩浆底侵作用,峰期造山强烈的壳幔相互作用,后期造山岩石圈开始拆沉作用及后造山的伸展构造背景。

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