南迦巴瓦峰西北坡末次冰期以来的冰川变化

本区自晚更新世以来的冰川变化可分为距今25000—10000年的末次冰期、距今3500—1000年的新冰期和距今400—200年的小冰期,冰川面积逐次减小,雪线上升,与气候变化具同步性。

Fluctuations of Glaciers on the Northwest Slope of Mt. Nanjagbarwa Since the Last Glaciation

This section deals with the till stratigraphy, glacial evolution and relationships between glacier variation and climate in the Mt. Nanjabarwa region and some results have been achieved: 1. There were three fluctuations of glaciers since the late Pleistocene in this region, that is the last glaciation with the age of 25000-10000B.P. during the late Pleistocene, the Neoglaciation with the age of 3500-1000 B.P. during the late Holocene, and the Little Ice Age with the age 400-200 B.P. also in the late Holocene. 2. In the above periods, there are clear till stratigraphies and obvious glacial evolation processed. The area of glaciers decreased, the length shortened and the snow line rose gradually since the last glaciation. The climatical fluctuations were in step with those of the glaciers.