Holocene Aeolian Deposits and Environmental Evolution in Yili Valley
详细信息
- 责任者：Chen Xiuling (Geography Science College ; Fujian Normal University ; Fuzhou 350007 ; China) ; Li Zhizhong
- 刊名：Marine Geology & Quaternary Geology
- 出版年：2010
- 卷期：30(6)
- 关键词：全新世 ; Holocene ; 古气候 ; paleoclimate ; 伊犁盆地 ; Yili Basin
- 页码：p.35-42
- 图表：5 illus., 3 tables, 36 refs.
- 分类号：1400
- issnNo：ISSN0256-1492
- isbnNo：CN37-1117/P
摘要
This paper discusses the Late Holocene climate evolution in the Yili Valley of Xinjinag, based on the TOC, Fe2O3 and Xfd from the Keledala profile in Takermohur Desert. The result shows that, in the stage of 3.71～1.50 ka B.P., the climate in this area, as a whole, was relatively dry and experienced complicated changes. It was cold and humid during the period of 3.70～3.06 ka B.P.; extremely dry during the period of 3.06～2.63 ka B.P., and relatively humid during the period of 2.63～1.50 ka B.P. The average contents of TOC, Fe2O3 and Xfd reached the peak in 1.50～0.5 ka B.P. It indicates that precipitation in this area was relatively high, and the climate reached the best since 4 kaBP. Since 0.5 ka B.P., the Yili valley has remained in drought.
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