主要形成于大洋板块洋中脊构造环境，部分为岛弧一洋岛环境下的产物。
They mainly formed at tectonic environment of the middle ridge of the oceanic plate, partial are the products of island arc and oceanic islands.
大洋板块俯冲有俯冲加积和俯冲侵蚀两种不同的构造作用，它可在不同的时间-空间相互转化。
The subduction of oceanic plates has two tectonic actions of subduction accretion and subduction erosion, which ar interconvertible in different time and space.
任何假设的能推动或拉动大洋板块的力，会很快因克服在其下静态的热体地幔上滑动的摩擦力而被消散。
Any hypothetic al force postulated to either push or pull oceanic plates would be quickly dissipated overcoming the friction of sliding over a static fluid mantle beneath.
任何假设的能推动或拉动大洋板块的力，会很快因克服在其下静态的热体地幔上滑动的摩擦力而被消散。
Any hypothetical force postulated to either push or pull oceanic plates would be quickly dissipated overcoming the friction of sliding over a static fluid mantle beneath.
本次工作所发现的弧后大陆边缘伸展方向和大洋板块运动方向相吻合，支持弧后拉张机制应为板片后退模式。
The coupling relation between the directions of the overriding plate extension and oceanic plate motion supports the slab rollback model for the back-arc extension.
这反映华北克拉通东部区域拉伸方向的演变受控于太平洋区大洋板块运动，克拉通破坏的动力学背景应为弧后伸展。
It is suggested therefore that the extensional direction evolution was controlled by the oceanic motion and the craton destruction took place under a back-arc spreading setting.
造成方圆60平方英里菲律宾大洋洲板块断裂并向欧洲板块冲撞，释放了大量地壳热量。
A 60- by 60-mile segment of the Philippine oceanic plate ruptured and thrust itself against the Eurasian continental plate, releasing a massive burst of tectonic energy.
当各大洋重新出现时，新地壳便从各个火山喷涌而出；当构造板块移回到海底深处(这些火山的最终喷发就是源于海底深处)时，旧地壳便被摧毁。
As oceans reopen new crust is pulled forth from volcanoes; old crust is destroyed as tectonic plates return to the depths from which those volcanoes ultimately draw their fire.
印度洋脊是中大洋脊的一部分，中大洋脊是地壳分离的地球板块形成的。这一形成过程被称为海底扩张。
This is part of the system of mid-ocean ridges that form as the tectonic plates of the Earth's crust move apart-a process known as sea floor spreading.
大洋岩石圈与大陆岩石圈之间的多岛弧盆系构造域是板块构造登陆的入门向导。
The rudimental guide of the plate-tectonic theory landing on continent is the archipelagic arc-basin system between the oceanic lithosphere and continental lithosphere.
根据这种学说，大陆和大洋底部都是约30个板块的一部分，这里显示的是其中最大的一块。
According to this theory, the continents and ocean floors are parts of about 30 plates, the largest of which are shown.
与弧背前陆盆地和周缘前陆盆地相并列，并对应于板块构造演化历程中的大洋消减、大陆碰撞和陆内缩短三个不同性质的聚敛阶段。
Therefore they are corresponding to the three different featured convergent stages of ocean subduction, continental collision and intra-continent contraction in the structural evolution of plates.
培面出露较好，岩石化学、地球化学特征显示为大洋岛屿环境，是震旦纪晚期伊犁地块从塔里木板块裂解时的产物。
Rock geochemistry displays an ocean island environment during the late sinian when the yili block broke away from the tarim plate.
这些岩石大部分可能为板块俯冲过程中带入的大洋岩石残片。
Most of the rocks might be originally fragments of oceanic rocks introduced during plate subduction.
东坡（洋坡）缓，是西北菲律宾海板块向琉球岛弧下插的一边，与大洋盆地相连。
The east slope is slow, and is the inserting side from the northwest Philippine Plate into the Ryukyu Island Arc, connecting with the ocean basin.
东坡（洋坡）缓，是西北菲律宾海板块向琉球岛弧下插的一边，与大洋盆地相连。
The east slope is slow, and is the inserting side from the northwest Philippine Plate into the Ryukyu Island Arc, connecting with the ocean basin.
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