Paleoethologic and Paleoecologic Significance of Upper Cretaceous Ichnofabrics, Denmark and Sweden

9814255ekdale这是一个为期一年的项目，旨在研究丹麦和瑞典南部上白垩统（马astrichtian）白垩沉积中复合技术结构的古行为学意义、古生态学意义和沉积学意义。技术结构包括沉积物结构、质地和结构的所有方面，以及可归因于底栖生物生物侵蚀活动的早期成岩现象。复合技术结构是由生物成因结构的复合体组成，反映了生物化石群落中动物的分层分布。研究计划包括以下目标：确定和描述丹麦和瑞典粉笔中各种技术织物的变异谱；破译和解释特定技术结构的古行为学和古生态学意义，特别是在极细颗粒底物的垂直划分方面；将白垩单元内的各种沉积微相与反复出现的技术组构联系起来；并制作一幅摄影地图集，揭示粉笔中合成技术织物的细节。

9814255EkdaleThis is a one-year project to investigate the paleoethologic importance, paleoecologic significance and sedimentologic implications of composite ichnofabrics in Upper Cretaceous (Maastrichtian) chalk deposits in Denmark and southern Sweden. An ichnofabric encompasses all aspects of the sediment fabric, texture and structure, as well as early diagenetic phenomena that can be attributed to the bioerosion activities of benthic organisms. A composite ichnofabric consists of a complex of biogenic structures that reflect the tiered arrangement of infaunal animals in a trace fossil community. The research plan includes the following objectives: to determine and describe the spectrum of variation of the diverse ichnofabrics in the Danish and Swedish chalks; to decipher and explain the paleoethologic and paleoecologic significance of particular ichnofabrics, especially in terms of vertical partitioning of the extremely fine-grained substrate; to relate the recurrent ichnofabrics to the various sedimentary microfacies within the chalk units; and to produce a photographic atlas that reveals the details of composite ichnofabrics in the chalks.