Discontinuous sedimentary evolution of the Keuper (Triassic), Central European Basin (Lithostratigraphy, unconformities, cyclic and sequence stratigraphy, paleotectonics)

德国以外地区常用的具有穿时性地层单位的正式的Keuper岩石地层学对于详细的盆地评价几乎是无用的。该项目的主要目标之一是建立一个从波兰到英国的均质、准等渗、岩性（别地层学）单元和相关不整合面的框架，类似于最近在德国建立的框架（Beutler等人，2004年）。此外，将利用露头、岩心和测井曲线中明显的等级旋回模式，建立高分辨率的地层细分。根据旋回性和不整合面的新结果，对Keuper层序地层格架进行了修订。沉降曲线和沉降（等厚线和古构造）图将标出不同的沉降和同沉积断层的时期以及所涉及的可变应力条件。预期成果如下：- 从波兰到英国的均匀化地层细分和横截面，-德国和波兰的高分辨率地层细分，-已知的正确地层位置（和可能未知的）不整合面，-涉及的侵蚀量，-确定与同沉积构造和盐成构造有关的厚度变化，-高沉降区沉积的Keuper盐的地层位置，- 建立空间相变化，-修订层序地层（基准面）格架，-建立可变沉降期和同沉积断层期，以及定义所涉及的可变应力条件。

Formal Keuper lithostratigraphy with diachronous facties units that is commonly used outside of Germany is almost useless for a detailed basin evaluation. One of the main targets of the project is to generate a framework of homogenized, quasi-isochronous, lithological (allo-stratigraphy) units and associated unconformities form Poland to England, similar to the one that has been established recently in Germany (Beutler et al. 2004). In addition the pronounced pattern of hierarchial cycles in outcrops, cores and well logs will be used to establish a high-resolution stratigraphic subdivision of formations. The sequence stratigraphic (baselevel) framework of the Keuper will be revised according to the new results of cyclicity and unconformities. Subsidence curves and subsidence (isopach and paleotectonic) maps will line out periods of different subsidence and sysedimentary faulting as well as the variable stress conditions involved. Expected results are: - Homogenized stratigraphic subdivision and cross sections from Poland to England, - high-resolution stratigraphic subdivision in Germany and Poland, - proper stratigraphic position of known (and possible unknown) unconformities, - amount of erosion involved, - establishment of thickness variations in realtion to synsedimentary tectonics and halotectonics, - stratigraphic positions of Keuper salt deposited in areas of high subsidence, - establishment of spatial facies variations, - revision of sequence stratigraphic (baselevel) framework, - establishment of periods of variable subsidence and sysedimentary faulting as well as definition of variable stress conditions involved.