Variations and Control Factors of Percent Content of Lower-Photic Calcareous Nannofossil Species-Florisphaera profunda in the Middle of <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place w:st="on">Okinawa</st1:place> Trough since MIS 6 <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

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Variations and Control Factors of Percent Content of Lower-Photic Calcareous Nannofossil Species-Florisphaera profunda in the Middle of Okinawa Trough since MIS 6

详细信息

责任者：Zhao Jingtao （Key Laboratory of Marine Geology and Environment ; Institute of Qceanology ; Chinese Academy of Sciences ; Qingdao 266071 ; China） ; Zhou Liancheng
刊名：Marine Geology & Quaternary Geology
出版年：2009
卷期：29(1)
关键词：第四纪 ; Quaternary ; 超微化石 ; nannofossils ; 冲绳海槽 ; Okinawa Trough
页码：p.67-71
图表：3 illus., 24 refs.
分类号：1101
issnNo：ISSN0256-1492
isbnNo：CN37-1117/P

摘要

Core Z14-6(27°07′N, 127°27′E, and water depth 739 m) retrieved from the central Okinawa Trough was selected for planktonic foraminifera and calcareous nannofossil study. On the comparison with SPECMAP δ¹⁸O the stratigraphy of Z14-6 was established. By contrast with data of three adjacent cores, the variations and control factors of percent content of Florisphaera profunda in this region during the last 150 ka BP were discussed. The results showed that the variations of percent content of F. profunda since MIS 6 were characterized by glacial-interglacial cycles.

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