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本文选取南极Nelson站、横断山的海螺沟冰川、喜马拉雅山的达索普冰川、西昆仑的古里雅冰川和天山的托木峰冰川为研究对象,以化学成分作为指标,作了模糊聚类分析。结果表明,在不同水平下分类,冰川之间关系程度不同,反应的气候环境也不同。南极与青藏高原冰川中离子浓度存在差异,尤其是Na+和Ca2+的含量差异显著。Nelson站的Ca2+/Na+之值比青藏高原各冰芯低许多,其与海水中Ca2+/Na+之值相当。Ca2+/Na+之值体现了冰川离海洋的距离,Ca2+/Na+之值越小,则冰川离海洋越近,反之则越大。
In this paper, we selected the Nelson station in the Antarctic, the Hailuogou Glacier in the Hengduan Mountains, the Dasuopu Glacier in the Himalayas, the Guliya Glacier in the West Kunlun Mountains, and the Tuomufeng Glacier in the Tianshan Mountains. Using chemical composition as an index, . The results show that under different levels of classification, glaciers have different degrees of relationship and different climate environments. There are differences in the ion concentrations in the glaciers between Antarctica and Qinghai-Tibet Plateau, especially Na + and Ca2 +. The Ca2 + / Na + values at Nelson Station are much lower than those of the ice cores in the Tibetan Plateau, which is comparable to that of Ca2 + / Na + in seawater. The value of Ca2 + / Na + reflects the glacier's distance from the ocean. The smaller the value of Ca2 + / Na +, the closer the glacier is to the ocean, and vice versa.