查询词典 subduction

The evolution of palaeogeography in this region took place under the background of subduction of the Kula-Pacific plate in NNW direction.

古地理演化以库拉－大平洋板块向NNW向消减作用为地质背景。

And that the timing of subduction of the paleo-ocean basin represented by the Guanzizhen ophiolite and formation of the volcanic-magmatic island arc is Late Cambrian to Early Ordovician.

反映以关子镇蛇绿岩为代表的古洋盆的俯冲作用和形成火山-岩浆岛弧的时限可能为晚寒武世或稍早。

In the view of the plate-evolution, orogen is commonly divided into two types: subduction and collision ones.

从板块演化角度看，造山带可以划分为俯冲型造山带和碰撞型造山带。

A profound study on the rock rheology of continental crust and mantle is a key to comprehensively understand of the continental orogenesis and dynamic process of deep subduction and exhumation of the continental crustal rocks.

要深入理解大陆造山带的造山作用和大陆壳岩石的深俯冲和折返动力学过程，必须对大陆地壳及地幔岩石的流变学进行深入研究。

In compressional area, physical modelling has been proved to be a powerful tool for simulating the evolution process of fold-thrust system, and gets great progress in nappe and double thrust structures, thrust belt inversion and basement involvement, compressional orogenesis function and surface process, structure transform zone in compressional area and mantle convection together with collision or subduction of plates etc.

在挤压地区，构造物理模拟已经被证明是一种模拟逆冲褶皱系统演化过程的强有力工具；在推覆体或双冲构造、冲断带的反转与基底卷入、挤压造山作用与表面过程、挤压地区构造转换带及地幔对流与板块碰撞俯冲等方面取得了很大进展。

The early stage of me tamorphism happened before deformation in the upper mantle at about 60-70km. Then metagabbro emplaced rapidly at about 40 km by diapirism and perhaps amalgamated with cool subducted oceanic crust. After that, rapid cooling retrograde metam orphism occurred. Early rapid ocean spreading was constrained because subduction appeared. Therefore, metagabbro continued to uplift under the slow extension. At last, it obducted and thrusted to outcrop on the surface.

变形前的早期变质可能发生在60～70km处的上地幔，然后变质辉长岩快速"底辟"构造侵位，上升至约40km深处，可能与俯冲的冷洋壳并置，发生快速降温退变反应；因俯冲作用的开始，抑制了洋盆快速扩张，变质辉长岩在减速伸展环境下继续抬升减压；后期又由于仰冲推覆，最终出露地表。

Verde Basin is a marginalforeland basin genetically related to the Ouachita overthrust 'belt and its as ociated subduction zone.

佛盆地是marginalforeland盆地Ouachita相关基因的逆冲推覆构造带，其作为美联社俯冲带。

A subduction-related magmatic arc of Paleozoic age (460～430 Ma) was developed.

中国西部陆内前陆盆地大多是由陆内俯冲形成的。

This paper gives a brief review of the characteristics and petrogenesis of mantle peridotite in continental subduction and collision belts, and then discusses in more detail the petrogenesis of peridotites in the North Qaidam ultrahigh pressure metamorphic belt.

论述了大陆俯冲碰撞带中地幔橄榄岩的基本特征和成岩类型，并重点讨论柴北缘超高压变质带中不同性质的橄榄岩及其成因。

And the late Triassic bimodal association reflects the characteristics of intracontinental rift setting, the early Jurassic Raohe ultramafic - mafic rock - pillow lava association represent the environmental characteristics of oceanic island, magmatic arc association represent the characteristics of island arc and active continental margin with the background of the plate subduction, middle Jurassic syn-orogenic granodiorite-granite association reflects characteristics of matching and orogensis after continental accretion.

其中晚三叠世双峰式组合反映了板内裂谷成因特征，早侏罗世饶河超镁铁质-镁铁质岩-枕状熔岩组合代表了洋岛环境特征，岩浆弧火成岩组合代表了板块俯冲背景下岛弧和活动大陆边缘特征，中侏罗世同造山花岗闪长岩-二长花岗岩组合反映了陆缘增生后拼贴造山的成因特点，它们总体上代表了由被动陆缘裂向活动陆缘转化并最终发生陆缘增生带拼贴造山的一个演化过程，其间伴随有被动陆缘深海盆地沉积、活动陆缘弧后前陆盆地沉积和陆相类磨拉石建造

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。