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

该项目将详细阐述在315次IODP探险期间从日本南开海槽俯冲带获取的第四纪至晚第三纪沉积序列的超微化石生物地层学。在Exp期间#315在熊野弧前盆地钻了两个地点，作为未来立管钻探的先导孔。提倡者应邀作为纳米化石生物地层学家参加了上述钻探探险，以提供弧前盆地沉积历史的框架。此外，来自不同化石群的生物地层学信息、磁性地层学记录和特弗拉地层学将被整合，以重建吸积棱柱和弧前盆地演化。此外，还将重点对南开海槽地区常见的纳米化石生物地层学事件进行评价和适用性。为此，将把南开海槽所有可用的纳米化石生物地层学事件的时间和特征与世界其他地区已建立的纳米化石生物地层学事件进行比较。

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.