海洋火山岛和它们的热点轨迹对于地质学家尤其有用，因为它们记录了过去的板块在固定地点之上的位置。
The oceanic volcanic islands and their hot-spot trails are thus especially useful for geologists because they record the past locations of the plate over a fixed source.
夏威夷岛链的自然历史清楚地显示了太平洋板块在一个固定的羽流上的运动。
The natural history of the Hawaiian island chain clearly shows the movement of the Pacific plate over a fixed plume.
加拿大地球物理学家 Tuzo Wilson 意识到，如果一块在内部固定火山源上移动的表面板块形成了岛屿，就会导致岛屿年龄增加。
Canadian geophysicist Tuzo Wilson realized that this age progression could result if the islands were formed on a surface plate moving over a fixed volcanic source in the interior.
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