< p > <强>不同边界发生在板块之间的边界< / >强。不同的边界是两个板块正在积极< em > < / em >推分开。不同边界的土地上创建裂谷山谷,最终在海底山脊,井从地幔热材料,冷却并形成新的地壳。例如,东非大裂谷(发散边界),是非洲板块分开,从大陆分离索马里。最终东非大裂谷将洪水,产生新分裂之间的海洋板块与东非裂谷成为大洋中脊。< / p > < p > < a href = " https://i.stack.imgur.com/m35YH.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/m35YH.png " alt = "在这里输入图像描述" > < / > < / p > < p > <强>热点,或者< em >板块中部< / em >构造活动,发生远离板块之间的边界< /强>。一个热点就是< em >板正在在< / em >固定< em >地幔柱< / em >。热点负责岛屿链,比如那些在夏威夷,形成板幻灯片在羽甚至火山在陆地上,像黄石。夏威夷群岛的谎言数千公里远离太平洋板块的边界,他们坐。一个不错的功能是夏威夷岛链在于north-westerly线相匹配的太平洋板块运动方向。
The main thing to keep in mind is that divergent boundaries occur at the boundaries of plates. Hot-spots occur in the middle of plates, often thousands of kilometres away from the boundaries of the plates.