The Silurian ''Mulde Event'' on the shelf of the East European Craton: chronology of events and causal relationships

穆尔德事件（文洛克，志留纪）是全球气候，碳循环和海洋状态的重大扰动。相关的灭绝影响CA。95%的笔石物种（所谓的“Große Krise”; Jäger，1991），全球记录的海平面变化是地球历史上最突然的变化之一。该项目的目的是利用波兰和乌克兰的地下和露头数据，通过对东欧大陆架的沉积盆地分析，阐明相关事件的年代。将根据微相、古生物和地球化学分析建立层序地层格架，其中将包括13 C开发和能谱伽马射线测井。将追踪笔石和牙形刺的海洋生态系统变化，这也将提供年代地层控制。该项目的目的是：1）提供独立的相，盆地规模的重建灭绝和随后的碳同位素漂移与精确的生物地层控制，以建立准确的时间和解释这些事件和海平面变化之间的因果关系;和2）确定（？冰川）的气候条件下，在低纬度沉积记录使用穆尔德事件作为一个案例研究。该项目将使许多现有的模型的驱动机制的碳同位素发展，已提出的下古生代进行测试，因此，它将提供重要的洞察古气候和海洋环流在这个时候在地球的历史。

The Mulde Event (Wenlock, Silurian) was a major perturbation in the global climate, carbon cycle, and ocean state. The associated extinction affected ca. 95% of graptolite species (the so-called “Große Krise”; Jäger, 1991), and the globally-recorded sea-level change was among the most abrupt in Earth history. This project aims to elucidate the chronology of associated events through a sedimentary basin analysis of the shelf of the East European Craton, using subsurface and outcrop data from Poland and Ukraine. A sequence stratigraphical framework will be developed based on microfacies, paleontological, and geochemical analyses, which will include 13C development and spectral gamma ray logs. Changes in marine ecosystems will be tracked for graptolites and conodonts, which will also provide chronostratigraphic control. The aims of the project are: 1) to provide facies-independent, basin-scale reconstruction of the extinction and subsequent carbon isotope excursion with precise biostratigraphic control in order to establish accurate timing and explain causal relationships between these events and sea-level change; and 2) to identify (?glacial) climate conditions in the low-latitude sedimentary record using the Mulde Event as a case study. The project will allow many of the existing models of the driving mechanisms of carbon isotope development that have been proposed for the Lower Palaeozoic to be tested, and as a result, it will provide significant insight into palaeoclimate and oceanic circulation at this time in Earth’s history.