It is difficult to see how this applies to the ridge in the South Atlantic, where neither the African nor the American plate has a sinking part.
很难看出这如何适用于南大西洋的山脊，在那里，非洲板块和美洲板块都没有下沉的部分。
It is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean.
很难看出这个理论如何适用于大西洋中脊和印度洋脊之间的板块。
Here Earth's crust pulls apart, and upwelling magma cools and forms new crust that spreads away from the ridge in the great recycling process known as plate tectonics.
地壳在这里碰撞挤压，上涌的炙热岩浆变冷，又形成了新的地壳，这种伟大的循环过程就是所谓的板块构造。
The ridge is formed primarily from marine sediments scraped off the top of the Australia plate and piled up on top of the leading edge of the Sunda Plate.
洋脊的形成主要是由于从澳大利亚板块顶端刮落的海洋沉积物，在巽他板块的前端表面堆积起来了；
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 divergent Mid-Atlantic Ridge rises above sea level at Thingvellir, with the North American plate to the west and the Eurasian plate to the east.
分歧中大西洋海中脊升起海拔在辛格韦德利，和北美板块在西部和欧亚板块在东部。
The Mid-Atlantic Ridge is an example of a divergent plate boundary and is an area where new seafloor is being created.
中大西洋山脊是一个例子是一个离散板块边界和在这一地区在哪里新的海底正在建立。
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。
Photo Gallery: Plate Tectonics an eelpout fish swims near tube worms at the Mid-Atlantic Ridge in the Atlantic Ocean.
板块构造图片美术馆。一条粘鱼类游近管蠕虫在中大西洋山脊在大西洋。
Photo Gallery: Plate Tectonics an eelpout fish swims near tube worms at the Mid-Atlantic Ridge in the Atlantic Ocean.
板块构造图片美术馆。一条粘鱼类游近管蠕虫在中大西洋山脊在大西洋。
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