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海岸線曲折港灣多島嶼密布的原因
海岸線曲折港灣多島嶼密布的原因
更新时间:2026-10-26 12:32:58

  1、原因

  地步,地殼變遷。

  2、地處(南極洲闆塊與美洲)交界地帶,地殼運動活躍,岩石斷裂發育,易受侵蝕;安第斯山脈西坡為西風的迎風坡,多地形雨,多冰川侵蝕和流水侵蝕;地處西風帶,沿岸風大浪大,海水侵蝕作用強。

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