Nannofossil biostratigraphy of Quaternary to late Neogene sediments of the Nankai Trough (IODP Exp. 315)

该项目将阐述在IODP第315号考察期间从日本南海海槽俯冲带取回的第四纪至晚第三纪沉积序列的超微化石生物地层学。失效期间#315在熊野弧前盆地钻了两个位置，作为将来隔水管钻井的先导孔。建议者应邀作为超微化石生物地层学家参加上述钻探考察，以提供弧前盆地沉积历史的框架。此外，生物地层学信息来自各种化石群，磁性地层学记录和火山碎屑岩地层学将被整合，以重建增生棱柱和弧前盆地演化。此外，还将重点讨论南海海槽地区常见超微化石生物地层事件的评价及其适用性。为此目的，所有现有的生物地层事件的时间和特征的南海海槽将与世界其他地区的已建立的超微化石生物层位进行比较。

This project will elaborate the nannofossil biostratigraphy of the Quaternary to late Neogene sedimentary successions retrieved during IODP Expedition #315 from the Nankai Trough subduction zone off Japan. During Exp. #315 two sites were drilled into the Kumano forearc basin as pilot holes for future riser drilling. The proponent was invited to the mentioned drilling expedition as nannofossil biostratigrapher to provide a framework for sedimentation history of the forearc basin. In addition, biostratigraphic information derived from various fossil groups, magnetostratigraphic records and tephra stratigraphy will be integrated to reconstruct the accretionary prism and forearc basin evolution. Moreover, emphasis will be laid on the evaluation and applicability of common nannofossil biostratigraphic events in the Nankai Trough area. For this purpose the timing and characteristics of all available nannofossil biostratigraphic events from the Nankai Trough will be compared with established nannofossil biohorizons from other areas of the world.