中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Changes in sand content of loess deposits along a north-south transect of the Chinese Loess Plateau and the implications for desert variations

文献类型:期刊论文

作者Ding, ZL; Sun, JM; Rutter, NW; Rokosh, D; Liu, TS
刊名QUATERNARY RESEARCH
出版日期1999-07-01
卷号52期号:1页码:56-62
关键词China loess monsoon climate Loess Plateau Mu Us Desert
ISSN号0033-5894
文献子类Article
英文摘要Geological records have shown that the deserts east of the Helan Mountains in northern China were covered by grass during the Holocene Optimum, whereas during marine oxygen isotope stages 2 and 4 distribution of the deserts was almost the same as at present. The wide advance-retreat cycles of the deserts may have exerted an important control on gram-size changes in the loess of the Loess Plateau by altering the distance between the source and the accumulation zone of the loess. This challenges the widely accepted model that winter monsoon winds were the sole factor responsible for spatial and temporal changes in loess texture. To observe spatial changes in sedimentological characteristics of loess during the last glacial-interglacial cycle, the texture of loess was measured along a north-south transect of the Loess Plateau, This transect consists of nine loess sections, starting at Yulin in the transitional region between the Loess Plateau and the Mu Us Desert and ending at Weinan in the southernmost part of the Loess Plateau. Southward changes in sand (>63 pm) content along the transect suggest that variations in desert extent have indeed played a significant role in loess grain-size distributions, particularly in the northern part of the Loess Plateau. It is proposed that sand content (>63 mu m%) of loess in the loess-desert transitional zone may be used as a proxy indicator for proximity to the desert margin, (C) 1999 University of Washington.
WOS关键词SCALE
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000081449000005
出版者ACADEMIC PRESS INC
源URL[http://ir.iggcas.ac.cn/handle/132A11/75624]  
专题中国科学院地质与地球物理研究所
通讯作者Ding, ZL
作者单位1.Chinese Acad Sci, Inst Geol, Beijing 100029, Peoples R China
2.Xian Lab Loess & Quaternary Geol, Xian 710054, Peoples R China
3.Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada
推荐引用方式
GB/T 7714
Ding, ZL,Sun, JM,Rutter, NW,et al. Changes in sand content of loess deposits along a north-south transect of the Chinese Loess Plateau and the implications for desert variations[J]. QUATERNARY RESEARCH,1999,52(1):56-62.
APA Ding, ZL,Sun, JM,Rutter, NW,Rokosh, D,&Liu, TS.(1999).Changes in sand content of loess deposits along a north-south transect of the Chinese Loess Plateau and the implications for desert variations.QUATERNARY RESEARCH,52(1),56-62.
MLA Ding, ZL,et al."Changes in sand content of loess deposits along a north-south transect of the Chinese Loess Plateau and the implications for desert variations".QUATERNARY RESEARCH 52.1(1999):56-62.

入库方式: OAI收割

来源:地质与地球物理研究所

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