The existence of NW-SE direction mantle flow under the continental crust in the north continental margin of South China Sea made the extension activities migrate from north to south.

南海北部陆缘下NW-SE方向流动的地幔流的存在使得伸展活动具有由北向南发育的机制。

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The oil price could slump again, as it has in each decade since the North Sea fields began to flow.

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The group, which focuses on oil and gas exploration, primarily in the UK and the Norwegian North Sea, reported a dramatic boost to production, proven reserves and cash flow last year.

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