Bio- and magnetostratigraphic events of ODP holes of the central Kerguelen Plateau@en

Neogene biostratigraphic and magnetostratigraphic data are compiled from Holes 747A, 748B, and 751A drilled on the Southern Kerguelen Plateau during Ocean Drilling Program Leg 120. Neogene sections have excellent to good magnetostratigraphic signatures in many intervals. This, in addition to minimal coring gaps and the occurrence of mixed assemblages of both calcareous and siliceous microfossil assemblages, makes these valuable biostratigraphic reference sections for intra- and extraregional correlations. This paper combines the sequence of biostratigraphic events reported from diatom, radiolarian, planktonic foraminifer, calcareous nannofossil, and silicoflagellate studies of Leg 120 sediments. It correlates microfossil datums with the geomagnetic polarity time scale to test existing age estimates and to refine biostratigraphic age controls for the southern high latitudes. […]本数据集整合了大洋钻探计划（Ocean Drilling Program）第120航次在南凯尔盖朗高原钻取的747A、748B与751A钻孔的新近系生物地层与磁性地层数据。多数层位的新近系剖面均具备优质至良好的磁性地层学特征，加之本次钻探取芯间隙极小，且同时发育钙质与硅质微化石组合的混合沉积，上述钻孔剖面成为区域内外地层对比中极具价值的生物地层学参考剖面。本文整合了第120航次沉积物在硅藻（diatom）、放射虫（radiolarian）、浮游有孔虫（planktonic foraminifer）、钙质超微化石（calcareous nannofossil）以及硅鞭藻（silicoflagellate）研究中所报道的生物地层事件序列，并将微化石基准面与地磁极性年表（geomagnetic polarity time scale）进行对比，以验证现有年龄估算结果，进而优化南极高纬度地区的生物地层年代约束。[…]