Palaeo-ecology of the OAE 2 (Cenomanian-Turonian) and OAE 3 (Coniacian-Santonian) at Tarfaya, NW Africa, as reflected by marine palynology.

将对来自非洲西北部塔尔法亚上白垩纪的5个岩心剖面提供的关键地层单位进行孢粉分析，重点是有机壁藻包囊(甲藻包囊、原生植物、原生藻类)。S 75岩芯涵盖了Cenomian/Turonia边界事件本身(CTBE，大洋缺氧事件2)，一直延伸到下都罗统。摩洛哥大西洋边缘综合盆地分析多学科项目的四个新岩心将恢复OAE 2(塞诺米尼亚/图罗尼亚)至OAE 3(科尼亚/桑托尼亚)。不同藻类群和孢粉学指标对OAE2和OAE3动态的响应将被考虑，并与独立的古环境指标进行比较。主要焦点将放在原生绿藻对光区水域潜在缺氧的反应(生物标记物)。将特别注意这两个事件的古生态边界条件的比较。这种方法是通过将孢粉学数据与包括微古生物学、地球化学和沉积学在内的多学科数据集相结合来提供的，这些数据集已经在S 75岩心中可用，并将在新岩心的多学科项目中可用。将孢粉学结果与独立的代理数据进行对比，将大大加深对两者、海洋孢粉学古生态潜力以及海洋孢粉学起源和演化动力学的认识。

Critical stratigraphic units provided by 5 core sections from the Upper Cretaceous of Tarfaya, NW Africa, are to be analysed palynologically, with emphasis on organic-walled algae cysts (dinoflagellate cysts, prasinophytes, acritarchs). Core S 75 covers the Cenomanian/Turonian boundary Event proper (CTBE, Oceanic Anoxic Event 2) up into the Lower Turonian. Four new cores from the multidisciplinary project Atlantic Margin Integrated Basin Analysis, Morocco , available in late 2009, are to recover the OAE 2 (Cenomanian/Turonian) up to the OAE 3 (Coniacian/Santonian). The response of the various algal groups and palynologic proxies to the dynamic of the OAE 2 and OAE 3 respectively are to be considered and compared with independent palaeo-environmental proxies. A main focus will be on the response of prasinophyte green algae to potential oxygen deficiency in photic zone waters (biomarker). Special attention will be given to the comparison of palaeo-ecologic boundary conditions of the two events. This approach is provided by the integration of palynologic data with multidisciplinary data sets including micropalaeontology, geochemistry and sedimentology, which are available for core S 75 already and will be available from the multidisciplinary project for the new cores. The comparison of the palynologic results with independent proxy data will greatly enhance the knowledge on both, the palaeo-ecological potential of marine palynology as well as thedynamic of OAE origin and evolution.