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열점

맨틀 심부에 고정되어 있는 열점은 판의 이동에 의해 일렬로 배열된 해산군(海山群)을 만든다.

열점(熱點, hot spot)은 맨틀 심부에 고정된 마그마 근원지를 가지는 화산으로, 지질학적으로는 장기간에 걸쳐 반경 100km 정도 이상의 지형적인 융기부위에 화산활동이 계속되고 있는 장소이다. 또 열점의 흔적을 추적해보면 판의 과거 이동 방향을 알 수 있다. 하와이 제도가 대표적이며 옐로스톤, 갈라파고스, 아이슬란드, 아조레스 등을 들 수 있다.

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열점
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