IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
Speleothem-derived Asian summer monsoon variationsin Central China, 54–46 ka
Zhou,HY(Zhou,Houyun)[1,2,6]ou,; Zhao,JX(Zhao,Jianxin)[3,4]; Wang,Q(Wang,Qing)[5]; Feng,YX(Feng,Yuexing)[3]; Tang,J(Tang,Jing)[1]

The oxygen isotope signature (d18O) of stalagmite SI3 collected from Shizi Cave in north-east Sichuan Province provides an Asian Summer Monsoon (ASM) record in Central China for the period 54–46 ka. The SI3 d18O record clearly shows a negative d18O excursion centred around 49.4 ka, which was reported in Hulu Cave in East China but not identified in the speleothem records from South-west China. As a whole, this record displays a higher coherence with the two Hulu records from East China than with the speleothem d18Orecords from South-west China, suggesting that at 54–46 ka, Central China was influenced more by the East Asian Summer Monsoon than by the Indian Summer Monsoon. It also displays a significant negative d18O excursion at 47.5–46.6 ka, which is not clearly documented in two other speleothem d18Orecords previously reported from South-west China. This suggests that details of the Greenland interstadial 12 warrant further investigations in future in monsoonal China. The SI3 d18O record displays more significant centennial-scale variations than the other four speleothem d18Orecords from East and South-west China, which may be due to the fact that the study site is closer to the north-west boundary of the ASM and more sensitive to variations of the ASM than East and South-west China.

Keywordstalagmite d18O U–Th ages climate change Central China Late Pleistocene
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Document Type期刊论文
Corresponding AuthorZhou,HY(Zhou,Houyun)[1,2,6]ou,
Affiliation1.School of Geography, South China Normal University, Shipai, Tianhe, Guangzhou 510631, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an,China;
3.Radiogenic Isotope Laboratory, Centre for Microscopy and Microanalysis;
4.School of Earth Sciences, the University of Queensland, Brisbane, Australia;
5.Coast Institute, Ludong University, Yantai, China;
6.School of Geographical Science, Southwest University, Chongqing, China
Recommended Citation
GB/T 7714
Zhou,HY(Zhou,Houyun)[1,2,6]ou,,Zhao,JX(Zhao,Jianxin)[3,4],Wang,Q(Wang,Qing)[5],等. Speleothem-derived Asian summer monsoon variationsin Central China, 54–46 ka[J]. JOURNAL OF QUATERNARY SCIENCE,2011,26(8):781-790.
APA Zhou,HY,Zhao,JX,Wang,Q,Feng,YX,&Tang,J.(2011).Speleothem-derived Asian summer monsoon variationsin Central China, 54–46 ka.JOURNAL OF QUATERNARY SCIENCE,26(8),781-790.
MLA Zhou,HY,et al."Speleothem-derived Asian summer monsoon variationsin Central China, 54–46 ka".JOURNAL OF QUATERNARY SCIENCE 26.8(2011):781-790.
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