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ITCZ and ENSO pacing on East Asian winter monsoon variation during the Holocene: Sedimentological evidence from the Okinawa Trough
Zheng, XF; Li, AC; Wan, SM; Jiang, FQ; Kao, SJ; Johnson, C; acli@qdio.ac.cn
2014
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
卷号119期号:7页码:4410-4429
摘要Deep-sea fan sediments provide an excellent geological archive for paleoenvironment reconstruction. Grain size, clay mineral and elemental (Ti, Fe, Ca) compositions were measured for a core retrieved from a submarine fan in the Okinawa Trough. Varimax-rotated Principal Component Analysis (V-PCA) on time-evolution of grain size spectrum reveals that, since the Holocene, sediment was transported mainly by the benthic nepheloid layer (33%) and upper layers (33%) which is driven by the East Asian winter monsoon (EAWM). The intensification of the Kuroshio Current during the Holocene, masks the fluvial signal of the summer monsoon and obstructs clay minerals derived from the Yellow River, a major contributor prior to 12 ka BP. A new grain size index (GSI), which represents the EAWM well, exhibits a negative correlation with the delta O-18 record in Dongge Cave, China during the Holocene when sea level was relatively steady. This anti-correlation suggests the southward migration of the Intertropical Convergence Zone (ITCZ). The consistency among our records and rainfall records in Peru, Ti counts in the Cariaco Basin, monsoon records in Oman and the averaged summer insolation pattern at 30 degrees N further support the ITCZ's impact on monsoon systems globally. Cross-Correlation Analyses for GSI and log(Ti/Ca) against delta O-18 record in Dongge Cave reveal a decoupling between the East Asian winter and summer monsoon during 5500-2500 cal yr BP, with greater complexity in the last 2500 years. This can be attributed to exacerbated ENSO mode fluctuations and possibly anthropogenic interference superimposed on insolation and ITCZ forcing.
部门归属[Zheng, Xufeng ; Li, Anchun ; Wan, Shiming ; Jiang, Fuqing] Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China ; [Zheng, Xufeng] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China ; [Kao, Shuh Ji] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Peoples R China ; [Johnson, Cody] Louisiana State Univ, Dept Civil & Environm Engn, Baton Rouge, LA 70803 USA
学科领域Oceanography
资助者National Natural Science Foundation of China [40776030, 41376057]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030302] ; National Natural Science Foundation of China [40776030, 41376057]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030302] ; National Natural Science Foundation of China [40776030, 41376057]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030302] ; National Natural Science Foundation of China [40776030, 41376057]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030302]
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收录类别sci
资助项目海洋地质
资助者National Natural Science Foundation of China [40776030, 41376057]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030302] ; National Natural Science Foundation of China [40776030, 41376057]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030302] ; National Natural Science Foundation of China [40776030, 41376057]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030302] ; National Natural Science Foundation of China [40776030, 41376057]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030302]
WOS记录号WOS:000340415500024
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被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10613
专题中科院边缘海地质重点实验室
通讯作者acli@qdio.ac.cn
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Zheng, XF,Li, AC,Wan, SM,et al. ITCZ and ENSO pacing on East Asian winter monsoon variation during the Holocene: Sedimentological evidence from the Okinawa Trough[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2014,119(7):4410-4429.
APA Zheng, XF.,Li, AC.,Wan, SM.,Jiang, FQ.,Kao, SJ.,...&acli@qdio.ac.cn.(2014).ITCZ and ENSO pacing on East Asian winter monsoon variation during the Holocene: Sedimentological evidence from the Okinawa Trough.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,119(7),4410-4429.
MLA Zheng, XF,et al."ITCZ and ENSO pacing on East Asian winter monsoon variation during the Holocene: Sedimentological evidence from the Okinawa Trough".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 119.7(2014):4410-4429.
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