今天看書看到的 但是原文的 所以不知道是不是我的認知錯誤
以下是原文部分....
A divergent boundary on the sea floor is located on the crest of the
mid-oceanic ridge. If the spreading rate is slow, as it is in the Atlantic
ocean (1cm/year), the crest has a rift valley. Fast spreadind, as in the
Pacific ocean (10cm/year), prevents a rift from forming.
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也就是說 比較緩慢的擴張速度會形成裂谷 (rift valley)
但是擴張速度比較快的話 卻會阻止裂谷的形成？
我實在百思不得其解 為什麼會有這樣的差異 請各位高手指點 謝謝 :)
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