冰川侵蚀

研究人员发现，越往北越温暖的地方，冰川侵蚀速度较快，而较冷的南方则较慢。

They found that erosion happened faster in the warmer mountains to the north , and more slowly in the colder mountains in the south .

然而冰川侵蚀的迹象——碗状的盆地，即盆地谷——在峡谷的很长一段距离里都神秘消失了。

Yet the telltalesigns of that glacial erosion - bowl-shaped basins known as cirques - are mysteriously absent for a long stretch of the ravine .

来自亚利桑那大学的科学家团队，在南美的巴塔哥尼亚的偏远地区研究了山脉。安第斯山脉正在拔高。滚烫的熔岩冲上顶端，但是冰川的侵蚀又让它们退到一边去。

A team led by scientists from the University of Arizona studied mountains in remote areas of Patagonia in South America.The Andes are actively growing .

北京——多年来，中外冰川学家称，气候变化是导致冰川侵蚀的主要原因，而冰川的退缩危及了许多人的水资源供给。

BEIJING - Glaciologists in China and elsewhere have said for years that climate change is the main cause of glacier erosion , which threatens the water sources of much of humanity .

由于北大山冰川遗迹中的节理裂隙，受到冰川和流水侵蚀，特别是长期强烈的寒冻风化及风蚀等外动力作用，逐渐形成了现今独特的花岗岩石林。

Due to those joints within glacial remains were eroded by glacier and running water action , especial exogenous process of frost weathering and wind abrasion for a long time , the unique granite forest was gradually formed nowadays .