Quantitative assessment and palaeoecologic significance of Turonian c-dinocysts assemblages in a high-resolution stratigraphic basin to basin margin transect

对于上白垩统的层序，尚未全面探索c-二胞体组合及其形态特征的统计评估潜力。尽管存在来自欧洲陆架海不同区段的选择性数据，但数据解释几乎完全缺乏高精度的地层格架，阻碍了对隆起盆地断面内真实等时组合的比较和关键的古生态/古海洋学评估。在这个项目中，我们的目标是在一个精确的综合地层格架内，在地层分辨率的限制下，研究一个上吐鲁统高频三级层序(约400Ky)。与成因相关的沉积物包--单个体系域--及其构成石--米兰科维奇引发的泥灰岩/石灰岩蚀变，将从盆地边缘(波希米亚)取样进入完全远洋的海洋环境(白垩相)，代表约1000公里的断面。经过分类处理后，将以最高的地层分辨率分析植物区系组合和形态特征，以阐明其空间关系。时间变化将通过统计方法获得。在有相控制的情况下，数据将设置为与环境变化有关。根据中间扰动假说，讨论了其对古环境重建的可能意义。

The potential of statistical assessment of c-dinocyst assemblages and their morphological traits have not yet been comprehensively explored for Upper Cretaceous successions. Although selective data from various sections of the European shelf sea exist, data interpretation suffers from the almost entire lack of highly precise stratigraphic frameworks, preventing a comparison and critical palaeoecologic/ palaeoceanographic assessment of true isochronous assemblages within a swell-basin transect. In this project, we aim to investigate an Upper Turonian high frequency 3rd order sequence (ca. 400 ky) within a precise integrated stratigraphic framework at the limits of stratigraphic resolution. Genetically related sediment packages – the individual systems tracts – and their building stones, Milankovitch-triggered marl/limestone alternations, will be sampled from the basin margin (Bohemia) into the fully pelagic oceanic setting (Chalk Facies), representing a transect of ca. 1000 km. After taxonomical treatment, floral assemblages and morphological traits will be analysed at the highest stratigraphic resolution in order to elaborate its spatial relations. Temporal changes will be acquired by statistic methods. In context with facies control, data will be set into relation to environmental changes. Its possible significance for palaeoenvironmental reconstructions will be discussed in the light of the intermediate disturbance hypothesis.