The oceanic plate is made of denser and heavier rock, so it begins to sink down under the continental plate and into the mantle.
海洋板块是由密度更大、更重的岩石构成的，所以它开始下沉到大陆板块之下，到地幔之中。
They mainly formed at tectonic environment of the middle ridge of the oceanic plate, partial are the products of island arc and oceanic islands.
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。
The Nanling metallogenic belt is the result of the combination of the Pacific plate and the Indian oceanic plate with the continental plate of China.
南岭成矿带是太平洋及印度洋板块对中国大陆板块联合作用的结果。
They are probably related to the subduction of the Paleo-Asia Oceanic plate, and their intrusion resulted in the contact metamorphism of the Majiajie Group.
它们的形成可能与晚古生代古亚洲洋的消减作用有关，该期花岗岩的就位导致马家街群发生了接触变质作用。
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.
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。
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.
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 oceanic volcanic islands and their hot-spot trails are thus especially useful for geologists because they record the past locations of the plate over a fixed source.
海洋火山岛和它们的热点轨迹对于地质学家尤其有用，因为它们记录了过去的板块在固定地点之上的位置。
The rudimental guide of the plate-tectonic theory landing on continent is the archipelagic arc-basin system between the oceanic lithosphere and continental lithosphere.
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。
These different ophiolite sections actually reflect different dynamic processes beneath oceanic ridges, which are mainly controlled by the plate spreading velocity and the amount of magmatic supply.
不同的蛇绿岩剖面反映了洋脊之下不同的动力学过程，主要受板块扩张速度和岩浆供给的制约。
The rift valley over the axial part of an oceanic ridge is the accreting plate boundary.
洋脊中轴裂谷是板块的创生边界，是与地球内部联系最紧密的地表区域之一。
Most of the rocks might be originally fragments of oceanic rocks introduced during plate subduction.
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。
According to the theory of plate tectonics, China's oceanic earthquakes can be divided into three major levels: (1)Western Pacific Ocean arc-trench strong mobile belt;
将中国海洋地震按板块构造理论划分为三个大的层次：（1）西太平洋岛弧-海沟强活动带；
In subduction zones, where older and colder oceanic crust descends beneath another tectonic plate, Deep focus earthquakes may occur at much greater depths (up to seven hundred kilometers).
在隐没带，当更老的和更冷的海洋地壳下降到另一个构造板块下面时，深震源地震可能会发生在非常深的深度(达到700公里)。
Since the beginning of the upper Triassic epoch, the Indian plate upthrusted to the north over the Tethys oceanic crust and led to the closure of the Tethys in Eocene epoch.
晚三迭世开始，印度板块在特提斯洋壳上向北仰冲，并导致特提斯在始新世的关闭。
Since the beginning of the upper Triassic epoch, the Indian plate upthrusted to the north over the Tethys oceanic crust and led to the closure of the Tethys in Eocene epoch.
晚三迭世开始，印度板块在特提斯洋壳上向北仰冲，并导致特提斯在始新世的关闭。
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