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C/T界线段已被研究了20多年。目前，我们为Oop Leg 207的OAE 2编制了一个高分辨率的513Corg数据集，以便将这些黑色页岩与其他地方的记录进行对比。然而，高分辨率的古温度和碳同位素记录受到了较差的地层控制的影响。因此，我们寻找一个地点，使我们能够建立OAE 2的地层参考剖面，包括微古生物学、宏观古生物学和稳定同位素的数据。这将通过在德国温斯托夫取芯OAE 2的独特和扩展继承来实现。旺斯托夫段包括世界上S时代最广泛、最容易接近的塞诺马期中期至早期图尔尼期序列之一，具有厚厚的黑色页岩。大量保存完好的宏观和微观化石将使我们能够为C/T界线段开发高分辨率的化学和生物地层学，这将成为国际标准。207井段和旺斯托夫剖面的高分辨率同位素地层对比也将使我们能够了解207井段观测到的古海洋学变化的准确时间。

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.