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Chinese Academy of Sciences Institutional Repositories Grid
High-resolution sea surface temperature records derived from foraminiferal mg/ca ratios during the last 260 ka in the northern south china sea

文献类型:期刊论文

作者Wei, Gangjian; Deng, Wenfeng; Liu, Ying; Li, Xianhua
刊名Palaeogeography palaeoclimatology palaeoecology
出版日期2007-06-25
卷号250期号:1-4页码:126-138
关键词Globeriginoides sacculifer Mg/ca ratios Sst Northern south china sea
ISSN号0031-0182
DOI10.1016/j.palaeo.2007.03.005
通讯作者Wei, gangjian(gjwei@gig.ac.cn)
英文摘要High-resolution sea surface temperatures (sst) derived from mg/ca ratios of globeriginoides sacculifer at odp site 1144 were reported to reveal the sst changes during the last 260 ka in the northern south china sea (scs). the results indicate an average holocene sst of about 26.7 degrees c, about 3.6 degrees c increase from lgm to the holocene, and higher temperature during mis 5.5 than the holocene. these agree well with other foraminifer mg/ca and u-k (37) sst records in this region. the mg/ca records suggest warmer ssts during mis 3 in the northern scs, compared with those in the eastern pacific. strong east asian summer monsoon during mis 3 indicated by paleoclimate records from nearby continents may account for it. step-wise increases during terminations are shown in our sst record, and the beginning of deglacial warming occurs at about 19 ka, which precedes the change of oxygen isotopes, suggesting a tropical driven forcing for the sst change in the northern scs. this is further supported by a robust semi-precessional cycle centering at similar to 9.1 ka in the spectra of the sst record, which is absent in that of the oxygen isotopes. however, tropical driven forcing seems not to be indicated in another mg/ca sst record in the northern scs [oppo, d.w. and sun, y.b., 2005. amplitude and timing of sea-surface temperature change in the northern south china sea: dynamic link to the east asian monsoon. geology, 33 (10): 785-788]. the discrepancy may be caused by different post-deposition dissolutions of foraminifer tests at these two sites. details about the modification of foraminifer mg/ca ratios after burial, however, are not well known in this region, and further studies are needed. (c) 2007 elsevier b.v. all rights reserved.
WOS关键词EAST-ASIAN MONSOON ; GULIYA ICE CORE ; PLANKTONIC-FORAMINIFERA ; TIBETAN PLATEAU ; WESTERN PACIFIC ; OXYGEN ISOTOPES ; TIME-SERIES ; EQUATORIAL ; MAGNESIUM ; PATTERNS
WOS研究方向Physical Geography ; Geology ; Paleontology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
语种英语
WOS记录号WOS:000247701000008
出版者ELSEVIER SCIENCE BV
URI标识http://www.irgrid.ac.cn/handle/1471x/2380839
专题中国科学院大学
通讯作者Wei, Gangjian
作者单位1.Chinese Acad Sci, Key Lab Isotope Geochronol & Geochem, Inst Geochem, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Wei, Gangjian,Deng, Wenfeng,Liu, Ying,et al. High-resolution sea surface temperature records derived from foraminiferal mg/ca ratios during the last 260 ka in the northern south china sea[J]. Palaeogeography palaeoclimatology palaeoecology,2007,250(1-4):126-138.
APA Wei, Gangjian,Deng, Wenfeng,Liu, Ying,&Li, Xianhua.(2007).High-resolution sea surface temperature records derived from foraminiferal mg/ca ratios during the last 260 ka in the northern south china sea.Palaeogeography palaeoclimatology palaeoecology,250(1-4),126-138.
MLA Wei, Gangjian,et al."High-resolution sea surface temperature records derived from foraminiferal mg/ca ratios during the last 260 ka in the northern south china sea".Palaeogeography palaeoclimatology palaeoecology 250.1-4(2007):126-138.

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来源:中国科学院大学

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