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中国沙漠 ›› 1992, Vol. 11 ›› Issue (2): 27-32.

• 论文 • 上一篇    下一篇

青海共和盆地东部晚更新世——全新世地层中元素分布与古气候

贾惠兰, 李保生   

  1. 中国科学院兰州沙漠研究所
  • 出版日期:1991-06-20 发布日期:1991-06-20

Chemical Element Distribution and Palaeoclimate in Late Pleistocene—Holocene Strata in East Gonghe Basin

Jia Huilan, Li Baosheng   

  1. Institute of Desert Research, Academia Sinica, Lanzhou
  • Online:1991-06-20 Published:1991-06-20

摘要: 对青海共和盆地东部上更新统一全新统地层中第一过渡元素分布的研究表明, 该地自晚更新世以来交替经历了四次土壤发育的相对暖湿期和四次风沙堆积的干冷期。

关键词: 共和盆地, 风成沙, 古土壤, 第一过渡元素, 古气候

Abstract: The study on distribution of the first transitional elements from the late Pleistocene-Holocene strata in Gonghe Basin, Qinghai province, shows that since late Pleistocene there occurred four times of relatively warm-wet climate and four times of cold-dry climate, they can be identified by palaeosol and palaeo-aeolian sand respectively. Such climatic conditions appeared alternately.