查询词典 subduction

According to the geochemical data, the formation of mantle peridotite might be: during the spreading of ocean floor, the MOR mantle underwent variable degrees of partial melting and formed the depleted mantle peridotite with podiform chromitite; during the spreading of ocean basin, intra-ocean subduction happened, REE and LILE rich fluids containing water derived from the subduction slab migrated upwards and metasomatism happened to peridotite relic.

康金拉矿区的地幔橄榄岩的地球化学特征反映了其形成过程的复杂性，表现为：洋底扩张期间，扩张脊下的MOR型地幔的经历了不同程度的部分熔融，形成了亏损地幔橄榄岩，该地幔橄榄岩中赋存了来自深部的豆荚状铬铁矿。

Deep lithospheric mantle in the Qinghai-Tibetan plateau and adjacent area, which consists of imbricated dipping-northward multi-lithospheric terrains, is in convergent-subduction regime for sinking of cold lithospheric material. Geoidal anomalies and P/S velocity tomographies show that subduction into beneath Euro-Asian continent by Indian lithosphere not only causes intensive crustal upwelling, thickening and shorting deformation along S-N, but also affects depth of～600km in the plateau and eastern part of the Chinese continent and southern margin of the Siberian block.

大地水准面异常和P/S速度层析成像显示，印度大陆岩石圈向欧亚大陆的俯冲作用，不只是引起地壳的强烈加厚、隆升和南北向缩短变形，纵向上影响到600km深度，横向上波及到了中国东部和西伯利亚南部。

We applied the theoretical results combined with GPS and absolute gravity observation data to study the subduction rate of the India plate to Eurasia subduction, the crustal deformation and gravity changes caused by the co-seismic dislocation of the Lijiang and Tang Gula earthquakes. From this study, the absolute gravity changes at the western Yunnan and Lhasa stations were founded.

通过本项目的研究，我们从重复绝对重力观测结果中发现了滇西地区、青藏高原的拉萨点绝对重力值的变化；研究了丽江7.0地震同震位错与重力变化的关系；印度板块与欧亚大陆俯冲等引起的重力变化。

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。

Subduction of a hot active ridge will significantly affect the thermal state of the subduction zone, and leave tectonic and petrologic signatures.

热的活动海岭俯冲会对岛弧周围岩浆活动、变质作用及地形变化产生影响。

This belt was formed during the Indo-China Stage of intracontinental collision of East Qinling Orogen Belt; 9. Many structural features imply the existence of Wudangshan nappe, which was formed by intracontinental subduction during Indo-China stage; and 10. The evidences of stratigraphy, petrology and structure imply that the collision of the two Paleoplate took place during the last stage of Caledonian, while the intracontinental subduction and the nappe took place during Indo-China stage, and the transcurrent basins took place during Yenshan stage. In the last part of this article, all kinds of favourable mineral forming conditions were analysed.

这条高压变质带是印支期东秦岭造山带陆间碰撞阶段产生的；9、各种构造迹象表明武当山推覆体的存在，它是印支期因陆间俯冲造成的准原地推覆体；10、地层、岩石、构造等各方面的证据表明南北板块的碰撞发生于加里东末期，而海西期至印支期为陆间俯冲和推覆作用阶段，燕山期则是应力松驰和断陷盆地发育的阶段，本文最后对区内各种有利的成矿地质条件作了扼要的分析。

The shearing and E-dip lineations of the plutons near the Shangdan subduction zone proves that the zone underwent thrust→thrust-sinistral shear→sinistral slip, revealing the lateral move and elevation of the core complex from the deep to low levels and a dynamic evolution of oblique subduction-collision.

商丹构造带边缘花岗岩体左行剪切及东倾伏的拉伸线理证实，商丹带经历了逆冲→逆-左行→左行三个阶段的递进演化，为秦岭杂岩相对由深部到浅部向西侧向运移抬升的认识提供了坚实依据，并揭示了一种斜向俯冲—碰撞的运动学、动力学演化过程。

The orogenic strata have following characteristics: During the subduction and intracontinental orogeny, the strata experienced dramatic tectonic migration and mixing, resulting in various tectonic features. A short sequence usually composed of tectonic slices of various origins, times, deformations and metamorphisms, and scales. The original sequence was badly destroyed. The extant fragments of orogenic belt usually took form as melanges, especially the accretion complex wedge generated in subduction zone, which is contrary to the Law of Superposition. The original location of the accretion is also contradicted with the Law of Original Horizonality, because the accretion is oblique with high degree. Marine rocks, volcanic rocks of continental margin and metamorphic rocks were well-developed in the orogenic belt, especially ultra-basic, basic rocks were wide spread and were intensely metamorphosed, accompanied by metamorphic slices returned from hundred kilometers underground with ultra-high pressure and magma movements during syn-orogeny and post-orogeny, thus formed the colorful landscapes.

造山带非史密斯地层构成具如下独特性和复杂性：造山带在俯冲碰撞和陆内造山阶段，发生过强烈的构造搬运和构造混杂，构造形迹多样化，垂直不长的地层体往往是众多不同来源、不同时代，不同变形变质程度，不同大小的各种构造岩片拼贴体，地层原始层序被严重肢解、破坏；尤以产于俯冲带的俯冲增生杂岩楔的原始形成方式与史密斯地层学的&层序叠覆律&老下新上的顺序正好相反，其混杂岩增生方式是老的&片体&在上，新的&片体&阶段性拼贴在老的&增生片体&的斜下方，这种增生片体的原始位置亦与&原始水平律&相悖，即增生片体一般保持较高角度倾斜；在岩石类型和变质程度上，造山带海相和古陆缘火山岩以及变质岩普遍发育，尤其是超基性、基性岩系分布广泛，变质作用较强，伴有从百余公里以下深部超高压变质岩片的折返和同造山期与造山后期岩浆活动，构成极为复杂的地质景观。

These results not only confirm that NAMs are important carrier of water involving in the deep continent subduction, but also reveal the potential of implications of NAMs for dynamics of continental subduction and exhumation.

通过本项目的执行，不仅确切地显示了名义上无水矿物是变质过程中重要的流体载体；而且表明，通过研究它们的水含量和同位素组成在不同尺度和变质阶段的分布特征，可以对板块俯冲－折返的动力学过程提供有效的制约。

The Kuriles subuction zone subducts with an angle of 45°; while the subducting angle of the Japan Sea subduction zone may by smaller 30°; the Ryukyu and Izu-Bonin subduction zones subducts with an angle of over 70° or nearly 90°, providing an evidence for activities in back-arc basins.

千岛群岛俯冲带大约以45°角度俯冲，日本海俯冲带则可能小于30°，琉球群岛俯冲带和伊豆-小笠原俯冲带则以大于70°的角度或近于直立的角度俯冲，从而为弧后盆地的活动性提供了证据。

This is the inheritance of the tribe of the children of Issachar according to their families, the cities and their villages.

19：23 这些城并属城的村庄就是以萨迦支派按着宗族所得的地业。

I've have enough of your garbage.

我听了你的废话。