Benthic foraminiferal assemblage response to paleoenvironmental changes in the Benguela upwelling system during the Neogene and Quaternary

上新世和中更新世期间的重要气候变化将改变深海底栖生物环境的许多方面。深海和表层洋流系统中循环系统的改变可对表层生产力产生重大影响，从而对有机通量速率和有机物质(食物)进入海底的类型产生重大影响。对ODP1082和1085站位的沉积物进行了海底有孔虫组合对新近纪和第四纪本格拉上升流系统古环境变化的响应研究。特别令人感兴趣的是(1)古生产力在时间上的波动，(2)本格拉系古生产力的区域变化，(3)底栖有孔虫种群结构的变化和对环流变化的反应，(5)深海有孔虫的演化变化及其与气候变化的关系。

Important climatic changes during the upper Pliocene and middle Pleistocene would have altered many aspects of the benthic environment in the deep sea. Alteration of circulation systems in the deep sea and in surficial current systems can have significant influence on surface productivity and thus on organic flux rates and type of organic matter (food) to the sea floor. Benthic foraminiferal assemblage response to paleoenvironmental changes in the Benguela upwelling system during the Neogene and Quaternary will be studied of sediments of ODP Sites 1082 and 1085. Of special interest are (1) fluctuations in paleoproductivity during time, (2) regional variations in paleoproductivity in the Benguela system, (3) changes in benthic foraminiferal population structures and reactions to circulation changes, (5) evolutionary changes of deep sea foraminifers and the relationship to climatic changes.