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
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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 |
DOI | 10.1016/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 |
推荐引用方式 GB/T 7714 | 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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