No very satisfactory account of the mechanism that caused the formation of the ocean basins has yet been given.

对于造成海洋盆地形成的机制，至今还没有给出非常令人满意的解释。

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Extreme changes in daily and seasonal climates preceded the retreat of the seas back into the major ocean basins.

在海洋退回到主要的海洋盆地之前，每日天气和季节性气候发生了剧烈的变化。

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At the end of the Cretaceous, the geological record shows that these seaways retreated from the continents back into the major ocean basins.

地质记录显示，在白垩纪末期这些航道从大陆撤退，回到主要的海洋盆地。

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The size of habitats needed for their protection, including consideration of MPA networks across ocean basins, will give assistance to many other species as well.

BBC: Saving the seas for marine mammals

But surface temperatures in all six of the ocean basins he examined (the north and south Atlantic, Indian and Pacific oceans) have increased by about half a degree Celsius.

ECONOMIST: Climate change: Oceans apart | The

About 100 million years ago, sea levels were about 300 metres higher than at present because of changes in the volume of ocean basins due to movement by the Earth's techtonic plates.

BBC: Looking for the greenhouse signal