季风的发展与冰川的消失──从台湾高山末次冰期冰川发育特征说起  

Monsoon Development and Glacier Disappearance──From the point of view of glacier revolution features during last glaciation in Xueshan, Taiwan

作　　者：崔之久[1] 杨健夫[2] 刘耕年[1] 宋国城 王鑫[2] 

机构地区：[1]北京大学城市与环境学系,北京100871 [2]台湾大学地理系,台湾台北3630231 [3]成功大学地理系,台湾台南2757575

出　　处：《冰川冻土》2000年第1期7-14,共8页Journal of Glaciology and Geocryology

基　　金：国家自然科学基金!49671010;台湾雪霸公园资助

摘　　要：台湾高山有无第四纪冰川之争，经历 ６０ａ后终于得到澄清。此次查明台湾雪山主峰区有３套 不同时期的冰川遗迹，如冰斗湖、冰坎、大型磨光面和擦痕以及冰碛垄等，分别命名为山庄冰阶（末 次冰期早期，４４．２５±３．７２ ｋａ ＢＰ）、黑森林冰阶（本次冰期最盛，１８．２６±１．５２ ｋａ ＢＰ）、雪山冰阶（末次冰 期晚期，１０．６８±０．８４ｋａ　ＢＰ），尤其以早期冰川规模大为特征．澄清了地学界近６５ａ来的怀疑，将为 全球变化研究增添新内容．There were glaciers or not in the high mountains of Taiwan during the Quaternary is an argument for 67 years (1932 -1998), but now it is soluted. It is found at the summer of 1998 that there are many relics of the paleoglaciers in Xueshan of Taiwan above 3 000 m. a.s.l., ranging they are three stages of the Last Glaciation (L.G.).the Shanzhuang stage (early stage of L.G., 44.25± 3.72 ka BP), the Heisenlin stage (Max. L. G., 18.26± 1.52 ka BP) and the Xueshan stage (late stage of L.G.). The main feature of evolution of the Last Glaciation is that the early stage was the Maximum one. The depression of ice erosion of U-shaped Valley No.2 was 7 m lower than the top of tile crosswall, but the original lake sediment in the depression has been covered by the gravel of taluvium, so the height difference from the top of the crosswall to the bottom of the depression is more than 10 m. Polished surface of the broad in scale and striation was discovered in the southern side of the middle of U-shaped Valley No. 1, which is located in the Black Forest 200 m higher than the directory board of the water source and at 3400 m in altitude. It is estimated that this crosswall could be a cirque mouth of the Shanzhuang glacial stage. There are glacial moraine banks corresponding to the above mentioned depression of ice erosion and the crosswall outside of the crosswall of U-shaped Valley No.2, and a lateral moraine bank on the eastern side of this valley. There are moraine materials of three different periods corresponding to the landform of ice erosion on U-shaped Valley No. 1. There is a highland of glacial moraine nearby the Village 369. The length of the glacier was estimated to be about 4 km and the snow line to be 3 400 m in altitude. There are some glacial moraine banks nearby the water source of the black forest. Glacier was estimated to be about 3 km in length, its ancient snow line was estimated to be about 3 500 m in altitude, the same as the upper limit of the forest at present. There is a small lateral moraine ba

关 键 词：雪山主峰 冰川遗迹 末次冰期 冰川 消失 季风 

分 类 号：P343.6[天文地球—水文科学] P532[天文地球—地球物理学]