大洋中脊 [海洋] mid-oceanic ridge ; oceanic ridge ; [海洋] mid-ocean ridge ; mid ocean ridge
大洋中脊玄武岩 MORB ; mid-ocean ridge basalt
大西洋洋中脊 Mid-Atlantic Ridge
中大西洋脊 Mid-Atlantic Ridge
中大洋脊 mid-ocean ridges
正常的大洋中脊玄武岩 normal mid-ocean ridge basalts ; N-MORB
大西洋中脊 [海洋] mid-Atlantic ridge
大洋中脊动力学 mid-ocean ridge dynamics
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.
作者认为，投在洋中脊玄武岩区域的玄武岩绝大多数并非来自大洋中脊环境。
The author indicates that all areas of the tectonic setting determined by basalt discri…
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