吴永华, 翦知湣, 石学法, 程振波, 李小艳, 石丰登. 菲律宾海北部19 cal.kaBP以来表层海水温度变化[J]. 海洋地质与第四纪地质, 2012, 32(4): 123-129. DOI: 10.3724/SP.J.1140.2012.04123
引用本文: 吴永华, 翦知湣, 石学法, 程振波, 李小艳, 石丰登. 菲律宾海北部19 cal.kaBP以来表层海水温度变化[J]. 海洋地质与第四纪地质, 2012, 32(4): 123-129. DOI: 10.3724/SP.J.1140.2012.04123
WU Yonghua, JIAN Zhimin, SHI Xuefa, CHENG Zhenbo, LI Xiaoyan, SHI Fengdeng. SEA SURFACE TEMPERATURE VARIATIONS IN THE NORTHERN PHILIPPINE SEA SINCE 19 CAL KABP[J]. Marine Geology & Quaternary Geology, 2012, 32(4): 123-129. DOI: 10.3724/SP.J.1140.2012.04123
Citation: WU Yonghua, JIAN Zhimin, SHI Xuefa, CHENG Zhenbo, LI Xiaoyan, SHI Fengdeng. SEA SURFACE TEMPERATURE VARIATIONS IN THE NORTHERN PHILIPPINE SEA SINCE 19 CAL KABP[J]. Marine Geology & Quaternary Geology, 2012, 32(4): 123-129. DOI: 10.3724/SP.J.1140.2012.04123

菲律宾海北部19 cal.kaBP以来表层海水温度变化

SEA SURFACE TEMPERATURE VARIATIONS IN THE NORTHERN PHILIPPINE SEA SINCE 19 CAL KABP

  • 摘要: 对菲律宾海北部E-2岩心柱(29.62°N、131.14°E,水深3 877 m)进行了浮游有孔虫δ18O分析、AMS14C测年以及U37k表层海水温度(U37k-SST)的测试。结果表明,E-2岩心记录了约19 cal.kaBP以来U37k-SST变化过程,其末次冰消期整体变化过程与北大西洋高纬地区相似,记录了Heinrich 1(H1)、Bølling/Allerød (B/A)和Younger Dryas (YD)等快速气候事件,同时也识别出发生于19.4~19.2和18.5~18.0 cal.kaBP的2次变冷事件,说明了研究区与北大西洋气候存在遥相关;在B/A和YD阶段中发现的百年尺度气候波动及变化过程,可能反映了热带过程对研究区域的影响;E-2岩心柱末次冰消期变暖存在阶段性,其变暖时间开始于19.4 cal.kaBP,而大幅升温阶段则从15.3 cal.kaBP开始。

     

    Abstract: Planktonic foraminiferal δ18O, AMS14C ages and U37k derived sea surface temperature (U37k-SST) were analyzed at the gravity core E-2 from the northern Philippine Sea (29.62°N、131.14°E,water depth 3 877 m, core length 282 cm). The results record the history of U37k-SST variations since 19 cal kaBP. On the whole, the pattern of last deglaciation warming is similar to that in the high-latitude North Atlantic region, implying a climate tele-connection between the northern Philippine Sea and high-latitude North Atlantic. Some climate events are recognized such as Heinrich 1 (H1), Bølling/Allerød (B/A), Younger Dryas (YD), and other two cold events at 19.4~19.2 and 18.5~18.0 cal.kaBP respectively. The centennial-scale U37k-SST variations are superimposed on the B/A and YD periods, probably suggesting a tropical influence on the study area. We also found that the last deglaciation warming probably began at~19.4 cal.kaBP, and the more rapid warming started at~15.3 cal.kaBP.

     

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