查询词典 subduction

The intermediate-basic volcanic rocks with SiO2 content less than 57.48 wt% are high in Al2O3(20.22-16.34 wt%) and K2O, enriched in large ion lithophile elements, show obvious Nb, Ta negative anomaly, these are same to the basalts which formed in island arc. The andesite, dacite and rhyolite rocks with SiO2 content between 62.11-75.19 wt%, are similar with the I-type granitic rocks formed in island arc in their geochemistry. It is suggested that the Jueluotage area of East Tianshan was in island arc setting during Late Carboniferous, when the subduction of the ancient Asian Ocean was in progress.

其中w(SiO2)小于57.48%的中基性火山岩具有高w(Al2O3)(16.34%~20.22%)，较富钾，富集大离子亲石元素，具明显的Nb、Ta负异常；w(SiO2)介于62.11%~75.19%之间的安山岩、英安岩和流纹岩岩石化学特征与准铝质的Ⅰ型花岗质岩石相似，其地球化学特征也反映出岛弧花岗岩的特点，表明东天山觉罗塔格地区路白山一带在晚石炭世仍处于古亚洲洋向南俯冲的岛弧环境。

The Prydz Belt occurs in the Prydz Bay and Denman Glacier, and is located in the interior of a previously proclaimed unified East Gondwana. The absence of subduction-related rocks, such as ophiolite suite, arc accretionary complex and high-pressure blueschist and eclogite, resulted in the argument that the Prydz Belt represents whether a collisional zone or an intraplate reworking belt.

普里兹造山带主要出露于普里兹湾和登曼冰川，因其位于从前假设的统一东冈瓦纳陆块的内部，加之缺少蛇绿混杂岩、岛弧增生杂岩和高压变质岩等与大洋板块俯冲作用密切相关的岩石，所以当前存在着碰撞造山成因和板内改造成因两种不同的认识。

Assemblage, chemistry and geochemical characteristics of the quartz diorite intrusion show the characteristics of subduction granite.

岩石学、岩石化学、地球化学特征显示石英闪长岩侵入体具有俯冲花岗岩特征。

The research on earthquake doublets of different tectonic zones shows that triggering effect of subduction earthquake doublets is significant.

对全球地震分区研究发现(4)消减带"地震对"的"触发效应"明显。

There are two types of peridotites within this UHP belt.(1) Garnet peridotite consists of garnet lherzolite, garnet-bearing dunite, garnet-free dunite and garnet pyroxenite, which could be considered as one of the critical rock types in a continental-type subduction zone.

根据岩石学特征，我们确定柴北缘超高压带中发育有两种类型的橄榄岩：(1)石榴橄榄岩，岩石类型包括石榴二辉橄榄岩、石榴方辉橄榄岩、纯橄岩和石榴辉石岩，是大陆型俯冲带的标志性岩石。

There are two types of peridotites within this UHP belt.(1) Garnet peridotite consists of garnet lherzolite, garnet-bearing dunite, garnet-free dunite and garnet pyroxenite, which could he considered as one of the critical rock types in a continental-type subduction zone.

根据岩石学特征，我们确定柴北缘超高压带中发育有两种类型的橄榄岩：(1)石榴橄榄岩，岩石类型包括石榴二辉橄榄岩、石榴方辉橄榄岩、纯橄岩和石榴辉石岩，是大陆型俯冲带的标志性岩石。

So the formation of the coesite needn't the plate of the earth subduction.

柯石英的形成并不一定要在地球板块俯冲后才能形成。

Oceanic subduction-type eclogite in the Lhasa block, Tibet, China: Remains of the Paleo-Tethys ocean basin?

青藏高原拉萨地块中的大洋俯冲型榴辉岩：古特提斯洋盆的残留？

Mount Etna, one of Europe's most active volcanoes, was created by the subduction of part of the northward-moving African plate beneath the Eurasian plate.

Etna山，是欧洲最活跃的火山之一，是由俯冲的一部分，向北移动的非洲板块下方的欧亚板块。

The formation and exhumation of the UHP metamorphic rocks is a complex rheological process for the material in deep subduction zone.

岩石流变作用是大陆造山作用的基本特征，超高压岩石的形成和折返过程也是大陆深俯冲带内物质的复杂流变过程。

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。