Age model for the time between 3.45 and 2.45 Ma of ODP Site 189-1172@en

Calcareous nannoplankton assemblages and benthic d18O isotopes of Pliocene deep-sea sediments of ODP site 1172 (East of Tasmania) have been studied to improve our knowledge of the Southern Ocean paleoceanography. Our study site is located just north of the Subtropical Front (STF), an ideal setting to monitor migrations of the STF during our study period, between 3.45 and 2.45 Ma. […]为深化对南大洋古海洋学的认知，本研究针对塔斯马尼亚以东大洋钻探计划（Ocean Drilling Program，ODP）1172站位的上新世深海沉积物中的钙质超微浮游生物（Calcareous nannoplankton）组合与底栖d18O同位素展开了系统分析。本研究站位恰好位于亚热带锋面（Subtropical Front，STF）北侧，是监测3.45~2.45 Ma研究时段内亚热带锋面迁移的理想区域。[…]