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                ? ? ? ?因高海拔(4600米左右)而@ 形成的现代冰川,俗称“万年雪”,是现代雪线的标志。冰川表面的断带冰壁,颜色呈〇灰白色,真正的冰川是白色ξ的。为什么这里的冰川是灰白色?因为这里的冰川掺杂了周围岩石的碎砾与尘土。它的厚度约50米,面积约60000平方米。所能看到的只是整个冰川的很小一部分。