Timing and spatial distribution of mid-Holocene drying over northern China: Response to a southeastward retreat of the East Asian Monsoon | |
Jiang, W. Y.; Liu, T. S. | |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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2007-12-28 | |
卷号 | 112期号:D24 |
ISSN号 | 2169-897X |
DOI | 10.1029/2007JD009050 |
文献子类 | Article |
英文摘要 | [1] To determine the timing and spatial distribution of mid-Holocene drying over northern China, the mineralogical and oxygen isotopic composition of authigenic carbonate from a closed lake at Bayanchagan, southern Inner Mongolia, were measured. Further analysis and synthesis of the spatial geological data were performed. Results from Lake Bayanchagan show a significant drying at 6000 calendar years (cal years) B. P., indicated by dolomite precipitation and a striking rise in delta(18) O values. The synthesis of spatial data reveals a zonal distribution for timing of drying over northern China in the mid-Holocene, which began at 9000-7000 cal years B. P. in deserts of north-central China. At 7000-5500 cal years B. P., drying extended into the desert-steppe transitional zone and at similar to 4500 cal years B. P. into northeastern and south-central China. This pattern indicates that the east Asian summer monsoon has significantly retreated southeastward since the mid-Holocene, which may be related to orbitally induced Northern Hemisphere insolation changes. A retreat of similar to 400-550 km is inferred for the front of the summer monsoon from 6500 to 4500 cal years B. P. |
WOS关键词 | HOLOCENE CLIMATIC-CHANGE ; INNER-MONGOLIA ; LOESS PLATEAU ; ENVIRONMENTAL-CHANGES ; DELTA-O-18 RECORD ; STABLE-ISOTOPE ; RIVER DELTA ; GRAIN-SIZE ; ARID CHINA ; CARBONATES |
WOS研究方向 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000252013700014 |
内容类型 | 期刊论文 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/68456] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Jiang, W. Y. |
作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Jiang, W. Y.,Liu, T. S.. Timing and spatial distribution of mid-Holocene drying over northern China: Response to a southeastward retreat of the East Asian Monsoon[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2007,112(D24). |
APA | Jiang, W. Y.,&Liu, T. S..(2007).Timing and spatial distribution of mid-Holocene drying over northern China: Response to a southeastward retreat of the East Asian Monsoon.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,112(D24). |
MLA | Jiang, W. Y.,et al."Timing and spatial distribution of mid-Holocene drying over northern China: Response to a southeastward retreat of the East Asian Monsoon".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 112.D24(2007). |
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