DOI: 10.1016/j.quascirev.2015.05.003
Scopus记录号: 2-s2.0-84930208586
论文题名: Cyclic changes of Asian monsoon intensity during the early mid-Holocene from annually-laminated stalagmites, central China
作者: Liu D. ; Wang Y. ; Cheng H. ; Edwards R.L. ; Kong X.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 121 起始页码: 1
结束页码: 10
语种: 英语
英文关键词: Annually-laminated stalagmites
; Cyclic Asian monsoon changes
; Early mid-Holocene
; Qingtian Cave
Scopus关键词: Caves
; Feedback
; Isotopes
; Laminating
; Solar energy
; Wavelet analysis
; Annually-laminated stalagmites
; Asian monsoon
; Continental ice sheet
; Cross-wavelet analysis
; Early Holocene
; Holocenes
; Last deglaciation
; Oxygen isotopes
; Atmospheric thermodynamics
; cave deposit
; climate variation
; cyclicity
; Holocene
; lamination
; last deglaciation
; monsoon
; oxygen isotope
; paleoclimate
; stalagmite
; China
; Qingtian
; Zhejiang
英文摘要: Climate during the early Holocene was highly variable due to the complex interplay of external and internal forcing mechanisms. The relative importance for them on the Asian monsoon (AM) evolution yet remains to be resolved. Here we present two-to six-yr-resolution oxygen isotope (δ18O) records of five stalagmites, four of which are annually-laminated, from Qingtian Cave, central China, revealing detailed AM variability between 10.9 and 6.1kaBP. Over the contemporaneous periods, the δ18O records agree well with each other at multi-decadal to centennial timescales. When pieced together with the previously published isotopic data from the same cave, the final δ18O record reveals detailed AM variability from the last deglaciation to the mid-Holocene, consistent with other cave records. The most striking feature of the δ18O record is the recurrence of centennial-scale oscillations, especially during the annually-counted period (8.8-6.1kaBP). Cross-wavelet analyses between the δ18O record and solar proxies show strong coherence at 200-yr cycle, suggesting that solar output was actively involved as a primary contributor. The AM depression at 8.2kaBP is indistinguishable in amplitude and pattern from a series of weak AM events after 8kaBP. We speculate that these centennial-scale AM changes might be regulated by the positive feedbacks of oceanic/atmospheric interactions to the solar activity under the condition of the retreat of continental ice-sheets. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59894
Appears in Collections: 过去全球变化的重建
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作者单位: College of Geography Science, Nanjing Normal University, Nanjing, China; Jiangsu Key Laboratory of Environmental Change and Ecological Construction, Nanjing, China; Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN, United States; Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China
Recommended Citation:
Liu D.,Wang Y.,Cheng H.,et al. Cyclic changes of Asian monsoon intensity during the early mid-Holocene from annually-laminated stalagmites, central China[J]. Quaternary Science Reviews,2015-01-01,121