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冰川冻土 ›› 1986, Vol. 8 ›› Issue (4): 333-344.

• 研究论文 • 上一篇    下一篇

喜马拉雅山和喀喇昆仑山冰川的变化

F. 诺特里斯伯格1, M. A. 格依2   

  1. 1. 瑞士;
    2. 联邦德国
  • 出版日期:1987-11-25 发布日期:2012-04-26

Glacier Variations in Himalayas and Karakorum

F. Rothlisberger1, M. A. Geyh2   

  • Online:1987-11-25 Published:2012-04-26

摘要: 利用对冰川侧碛中的各化石土壤层进行14C年代测定,确定了喜马拉雅山和喀喇昆仑山冰川的变化。对巴基斯坦、印度和尼泊尔的16条冰川进行了68次年代测定,表明了下述时期的冰川前进(以距今年数计):19500±1500(1次测定),约12700(1次测定),7400(2次测定),4900—4600(5次测定),3700—3100(12次测定),2700—2100(14次测定,分为两次变动,间断期为距今2500—2300),1700—1500(10次测定),1200—950(2次测定),800(2次测定),550(2次测定)和400—100(7次测定)。相对较小的冰川前进发生在:12700(14000?),7500,7000(?)—5000,4500—3800,3000—2700(间断期为2500—2300),2100—1700,500。在野外没有找到冰川跃动的证据。进行考察的冰川的大小和变化均可与欧洲阿尔卑斯山的冰川进行比较。两地区全新世冰川演变史看来是一致的。

Abstract: Glacier varations in the Himalayas and Karakorum were determined by 14C-dating of fossil soil horizons in lateral moraines. 68 dates from 16 glaciers in Pakistan, India and Nepal describe advances in the following periods (years B.P.): 19500 ? 1500 (1 date), ca.12700 (1 date), 7400(2 dates), 4900-4600 (5 dates), 3700-3100 (12 dates), 2700-2100 (14 dates), 1700-1500 (10 dates), 1200-950 (2 dates), 800 (2 dates), 550 (2 dates) and 400-100 (7 dates). Relatively small glacier extensions occurred before 12700(14000?), before 7500, 7000 (?)-5000, 4500-3800, 3000-2700, 2100-1700 and 500 years B. P.. There is no field-evidence for surge activity. Both the size and variations of the glaciers investigated are comparable to those of the European Alps. The Holocene glacial history of the two regions appears to be synchronous.