Environmental Changes Inferred from Environmentally Sensitive Grain-Size Component Records in Chaiwopu Lake, Xinjiang
详细信息
- 责任者：Ma Long (Key Laboratory of Desert and Oasis Ecology ; Xinjiang Institute of Ecology and Geography ; Chinese Academy of Sciences ; Urumqi 830011 ; China) ; Wu Jinglu
- 刊名：Acta Sedimentologica Sinica
- 出版年：2012
- 卷期：30(5)
- 关键词：全新世 ; Holocene ; 湖泊沉积物 ; lake sediments ; 新疆 ; Xinjiang
- 页码：p.945-954
- 图表：i4 llus., 3 tables, 31 refs.
- 分类号：1400
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Grain-size analysis of a sediment core CW02 and surface sediments of the drainage area,retrieved from Chaiwopu Lake of Xinjiang,were carried out using a Malvern 2 000 grain-size analyzer.The results indicated that the content/mean-size of sensitive grain-size component (20～209 μm) is sensitive to the regional sand-dust storm events in Chaiwopu lake basin.During the last 150 years,the strong sand-dust storm occurred during 1910～1930 A.D. and 1980～2000 A.D. Historical documents also recorded the strong dust storms around 1910s and 1980s.Based on the analysis of the abrupt change points,the sediment grain-size increased abruptly around 1910 A.D., which indicated an abrupt environmental event.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |