The Wunstorf drilling project: Coring a global stratigraphic reference section of OAE 2 for the correlation with ODP Leg 207 records

以黑色页岩沉积（OAE 2）为全球特征的Cenomanian / Turanian （C / T）边界段已经被研究了20多年。目前，为了将这些黑色页岩与其他地方的记录相关联，我们为OOP Leg 207的OAE 2编写了一个高分辨率的53g数据集。然而，高分辨率古温度和碳同位素记录受到地层控制不佳的影响。因此，我们寻找一个可以建立OAE 2地层参考剖面的地点，包括微古生物学、宏观古生物学和稳定同位素的数据。这将通过在德国Wunstorf对OAE 2进行独特的扩展继承来实现。Wunstorf部分包括世界上最广泛的，可接近的中Cenomanian到早期Turanian序列，具有厚的黑色页岩。在附近的采石场发现了大量保存完好的宏观和微观化石，这将使我们能够为C / T边界段建立高分辨率的化学和生物地层学，并将作为国际标准。对Leg 207钻孔和Wunstorf剖面的高分辨率同位素地层对比也将使我们能够了解Leg 207观测到的古海洋变化的精确时间。

The Cenomanian / Turanian (C / T) boundary interval, which is globally characterised by the deposition of black shales (OAE 2), has been studied for more than 20 years. Currently we compile a high-resolution 5l3Corg dataset for the OAE 2 of OOP Leg 207 in order to correlate these black shales to records elsewhere. The high resolution palaeotemperature and carbon isotope records suffer, however, from a poor stratigraphic control. We therefore look for a site which allows us to establish a stratigraphic reference section of the OAE 2, including data from micropalaeontology, macropalaeontology and stable isotopes. This will be achieved by coring a unique and expanded succession of the OAE 2 at Wunstorf, Germany. The Wunstorf section comprises one of the world s most expanded, accessible middle Cenomanian to early Turanian successions with thick black shales. Abundant and welt preserved macro- and microfossils, known from the near by quarry, will enable us to develop a high resolution chemo- and biostratigraphy for the C / T boundary interval which will serve as an international standard. A high-resolution isotope-stratigraphic correlation of Leg 207 holes and the Wunstorf section will also enable us to understand the precise timing of the observed paleoceanographic changes at Leg 207.