Biogenic and mineral composition and foraminiferal stratigraphy of sediment c...

The Ratekau boring ended in clays of the so-called Asterigerina-Zone; these clays have shallow-water features in the uppermost samples. The clays are overlain by deep-water...Ratekau钻孔终止于所谓的星轮虫带（Asterigerina-Zone）黏土地层中；该套黏土的最顶部样品呈现浅水沉积特征。该黏土地层之上被深水沉积层覆盖……