摘要
本文主要根据实地考察,发现位于青藏高原东北部边缘的弓嗄岭地区有丰富的第四纪冰川遗迹,以冰碛垄、冰川槽谷、冰碛丘陵、冰斗和冰水阶地等为主。结合环境分析,区内第四纪以来发育有两次冰川作用,分别为末次冰期晚期和晚冰期,古雪线高度分别为3800m和4200m。末次冰期晚期的冰川槽谷分布的最低位置为海拔2800m;古冰川性质属于海洋性冰川.
This paperpresents the discovery we have made on field investigation that there are many Quaternary glaciallandforms in the Gong-galing area, e.g.marginal moraine, lateral moraine, paleocirques, moraine tills, paleotroughs and glacialqueous terraces etc.. There are 2-layer paleosnowline. 3800m and 4200m above sea level, which sdood for 2 glaciations which, according to the proofs on landforms and environmental analysis in the area, can be divided into late time of last glaciation and late glaciation. paleoglacier belongs to maritime glacier.
出处
《重庆师范学院学报（自然科学版）》
1992年第1期33-39,共7页
Journal of Chongqing Normal University(Natural Science Edition)
基金
兰州大学地理系国家教委博士点基金资助课题
