自然界10大冰雪奇迹:冰冻瀑布和神秘冰矛(7)
条纹冰山
南极洲的冰山时常出现条纹状结构,这些条纹状冰山是由于不同状态下形成的。最常出现的蓝色条纹是冰架充满冰雪融化的海水,然后其间没有气泡非常快速地冷冻形成。当冰山融化部分进入海水,一层盐海水将在其底部冷冻。如果这一层海水富含水藻,那么将形成绿色条纹,褐色、黑色和黄线条纹是由于不同的海水沉淀物导致的。
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