阿拉斯加十大冰河奇迹 冰河埋葬火山树林(图)(10)
10、冰河不再是从前的模样
在后退冰川中,许多冰河正在消退。此图中标有日期的红线表明这些冰河终结于1750年至20世纪,这是依据早期地图和旅行家的测量标注的。旅行家约翰·莫尔曾于1879年和1899年走访过冰河,发现冰河变化很大,令人震惊。
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