全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

南海北部晚第四纪高分辨率元素比值反映的东亚季风演变

, PP. 207-215

Keywords: 南海北部,Ba/Ti,K/Al,表层生产力,陆地化学风化,东亚夏季风,晚第四纪

Full-Text   Cite this paper   Add to My Lib

Abstract:

选取大洋钻探ODP184航次在南海北部钻取的1144站(20°3.18'N,117°25.14'E;水深2037m)上部岩芯为研究材料,通过Ⅹ荧光光谱(XRF)岩芯扫描仪获取晚第四纪100ka以来时间分辨率高达10年的元素记录,并与德国"太阳号"95航次在同一站位获得的17940-2柱状样(20°07.0'N,117°23.0'E;水深1728m)的相关数据(包括底栖有孔虫Uvigerina+Bulimina的丰度、有机碳通量和粘土含量)进行比较,发现Ba/Ti和K/Al比值可以分别反映表层生产力和陆地化学风化的变化,且都具有明显的岁差和半岁差周期,呈现典型的热带气候特征,可能与东亚夏季风的变化有关。特别是,Ba/Ti和K/Al比值还具有类似D/O事件的千年尺度(1.4~2.0ka)周期和与太阳活动相关的百年尺度(约200a和500a)变化周期,且其千年尺度的变化特征在形态上更接近于南极冰芯中的氧同位素记录,反映了低纬海区与南半球高纬区的古气候联系。

References

[1]  1 Wang P X, Prell W L,Blum P et al.eds.Proceeding of the Ocean Drilling Program,Initial Reports,Texas A & M University,Ocean Drilling Program College Station 184,2000. 495
[2]  2 Wehausen R, Brumsack H J.Astronomical forcing of the East Asian monsoon mirrored by the composition of Pliocene South China Sea sediments. Earth and Planetary Science Letters,2002, 201 :621~636
[3]  3 Wei Gangjian, Li Xianhua,Liu Ying et al.Geochemical record of chemical weathering and monsoon climate change since the Early Miocene in the South China Sea. Paleoceanography,2006, 21 : PA4214,doi: 10.1029/2006PA001300
[4]  4 Clift P D, Hodges K V,Heslop D et al.Correlation of Himalayan exhumation rates and Asian monsoon intensity. Nature Geoscience,2008, 1 :875~880
[5]  5 Schulz M, Mudelsee M.REDFIT: Estimating red-noise spectra directly from unevenly spaced paleoclimatic time series. Computer & Geoscience,2002, 28 :421~426
[6]  6 Bühring C, Sarnthein M,Erlenkeuser H.Toward a high-resolution stable isotope stratigraphy of the last 1.1m.y.: Site1144,South China Sea.In: Prell W L,Wang P,Blum P et al.eds. Proceedings of the Ocean Drilling Program,Scientific Result,184.Available from World Wide Web: http://www_odp.tamu.edu/Publications/184_SR/205/205.htm,2004.1~29
[7]  7 Wang Luejiang, Wang Pinxian.Late Quaternary paleoceanography of the South China Sea: Glacial-interglacial contrasts in an enclosed basin. Paleoceanography,1990, 5 (1):77~90
[8]  8 Jian Zhimin, Huang Baoqi,Kuhnt W et al.Late Quaternary upwelling intensity and East Asian monsoon forcing in the South China Sea. Quaternary Research,2001, 55 :363~370
[9]  9 Wang Rujian, Li Jian.Quaternary high-resolution opal record and its paleoproductivity implication at ODP Site 1143,Southern South China Sea. Chinese Science Bulletin,2003, 48 (4):363~367
[10]  10 黄宝琦,杨文瑜.南海北部氧同位素3期时上部海水结构的变化.第四纪研究,2006, 26 (3):436~441
[11]  Huang Baoqi,Yang Wenyu.Variations of upper water structure in MIS 3 from the Northern South China Sea. Quaternary Sciences,2006, 26 (3):436~441
[12]  11 刘传联,祝幼华,成鑫荣.南海南部第四纪表层海水古生产力变化的钙质超微化石证据.海洋地质与第四纪地质,2001, 21 (4):61~66
[13]  Liu Chuanlian,Zhu Youhua,Cheng Xinrong.Calcareous nannofossil evidence for variations in Quaternary surface water paleoproductivity in the Southern South China Sea. Marine Geology & Quaternary Geology,2001, 21 (4):61~66
[14]  12 Janecek T R. Data report: High-resolution carbonate and bulk grain-size data for sites 803~806(0~2Ma).In: Berger W H,Kroenke L W,Mayer L A et al.eds. Proceedings of the Ocean Drilling Program,Scientific Results 130,1993.761~773
[15]  13 Wei Gangjian, Liu Ying,Li Xianhua et al.Major and trace element variations of the sediments at ODP Site 1144,South China Sea,during the last 230ka and their paleoclimate implications. Palaeogeography,Palaeoclimatology,Palaeoecology,2004, 212 :331~342
[16]  14 Boulay S, Colin C,Trentesaux A et al.Mineralogy and sedimentology of Pleistocene sediment in the South China Sea(ODP Site 1144).In: Prell W L,Wang P,Blum P et al.eds. Proceedings of the Ocean Drilling Program,Scientific Result, 184,2003.1~21
[17]  15 Bishop J K B. The barite-opal-organic carbon association in oceanic particulate matter. Nature,1988, 332 :341~343
[18]  16 Dymond J, Suess E,Lyle M.Barium in deep-seasediment: A geochemical proxy for paleoproductivity. Paleoceanography,1992, 7 (2):163~181
[19]  17 McManus J, Berelson M W,Klinkhammer P G et al.Geochemistry of barium in marine sediments: Implications for its use as a paleoproxy. Geochimica et Cosmochimica Acta,1998, 62 (21~22):3453~3473
[20]  18 Goldberg E, Arrhenius G O S.Chemistry of Pacific pelagic sediments. Geochimica et Cosmochimica Acta,1958, 13 (2~3):153~198
[21]  19 Murray R W, Knowlton C,Leinen M et al.Export production and carbonate dissolution in the central equatorial Pacific Ocean over the past 1Ma. Paleoceanography,2000, 15 (6):570~592
[22]  20 Taylor S R, McLennan S M eds.The Continental Crust: Its Composition and Evolution.Melbourne: Blackwell Scientific Publications,1985.1~312
[23]  21 Norman M D, Deckker P D.Trace metals in lacustrine and marine sediments: A case study from the Gulf of Carpentarra,Northern Australia. Chemical Geology,1990, 82 (3~4):299~318
[24]  22 Wei Gangjian, Liu Ying,Li Xianhua et al.Climatic impact on Al,K,Sc and Ti in marine sediments: Evidence from ODP Site 1144,South China Sea. Geochemical Journal,2003, 37 :593~602
[25]  23 Jian Zhimin, Wang Luejiang,Kienast M et al.Benthic foraminiferal paleoceanography of the South China Sea over the last 40,000 years. Marine Geology,1999, 156 :159~186
[26]  24 Jonkers H A. Pliocene benthic foraminifera from homogeneous and laminated marls on Crete. Utrecht Micropaleontology Bulletins,1984, 31 : 179
[27]  25 翦知湣,王律江,Kienast K.南海晚第四纪表层古生产力与东亚季风变迁.第四纪研究,1999,(1):32~40
[28]  Jian Zhimin,Wang Lüjiang,Kienast K.Late Quaternary surface paleoproductivity and variations of the East Asian monsoon in the South China Sea. Quaternary Sciences,1999,(1):32~40
[29]  28 Wang L, Sarnthein M,Erlenkeuser H et al.East Asian monsoon climate during the Late Pleistocene: High-resolution sediment records from the South China Sea. Marine Geology,1999, 156 :245~284
[30]  29 Ruddiman F W, Guo Zhengtang,Zhou Xin et al.Early rice farming and anomalous methane trends. Quaternary Science Reviews,2008, 27 :1291~1295
[31]  30 Dansgaard W, Johnsen S J,Clausen H B et al.Evidence for general instability of past climate from a 250-kyr ice-core record. Nature,1993, 364 :218~220
[32]  31 Kienast M, Steinke S,Stattegger K et al.Synchronous tropical South China Sea SST change and Greenland warming during deglaciation. Science,2001, 291 :2132~2134
[33]  32 Oppo D W, Sun Youbin.Amplitude and timing of sea-surface temperature change in the Northern South China Sea: Dynamic link to the East Asian monsoon. Geology,2005, 33 (10):785~788
[34]  26 Fang Dianyong, Jian Zhimin,Wang Pinxian.Paleoproductivity records for the past 30ka in the Southern Nansha Area,the South China Sea. Chinese Science Bulletin,2000, 45 (13):1227~1230
[35]  27 Gromet L P, Haskin L A,Korotev R L et al.The North American shale composite: Its compilation,major and trace element characteristics. Geochimica et Cosmochimica Acta,1984, 48 :2469~2482
[36]  33 Zhao Meixun, Huang Chi-Yue,Wang Chia-Chun.A millennial-scale Uk'' 37 sea-surface temperature record from the South China Sea(8°N)over the last 150 kyr: Monsoon and sea-level influence. Palaeogeography,Palaeoclimatology,Palaeoecology,2006, 236 :39~55
[37]  34 翦知湣,王博士,乔培军.南海南部晚第四纪表层海水温度的变化及其与极地冰芯古气候记录的比较.第四纪研究,2008, 28 (3):391~398
[38]  Jian Zhimin,Wang Boshi,Qiao Peijun.Late Quaternary changes of sea surface temperature in the Southern South China Sea and their comparison with the paleoclimatic records of polar ice cores. Quaternary Sciences,2008, 28 (3):391~398
[39]  35 North Greenland Ice Core Project Members. High-resolution record of the Northern Hemisphere climate extending into the last interglacial period. Nature,2004, 431 :147~151
[40]  36 EPICA Community Members. One-to-one coupling of glacial climate variability in Greenland and Antarctica. Nature,2006, 444 :195~198

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133