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题文

下图是某大洋海底示意图,N为板块的边界。据此回答各题。

图中N

A.为大洋中的消亡边界 B.最可能位于欧亚大陆东部沿海
C.两侧岩石年龄呈对称分布 D.为海陆交界地带的海沟

图中N区域表面最常见的岩石类型和岩浆的来源是

A.沉积岩地壳 B.喷出岩软流层
C.侵入岩岩石圈 D.变质岩软流层
科目 地理   题型 选择题   难度 中等
知识点: 地质地貌灾害的产生机制与发生过程
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