CRC806-Database Data Feed (Atom) A new cave site at the limestone hogback of Gebel Duwi: Interdisciplinary approaches to study palaeoenvironmental changes in the central Eastern Desert of Egypt 2019-02-20T19:44:11+01:00 The area in the Central Eastern Desert at the limestone hogback of Gebel Duwi near Wadi Sodmein is currently under investigation in the Collaborative Research Centre 806 “Our Way to Europe”, (University of Cologne) in collaboration with the Egyptian Mineral Resources Authority (EMRA). In a joint fieldtrip in 2017 from CRC 806 and EMRA at Wadi Sodmein, a new cave site at Gebel Duwi is thereby firstly investigated with geoscientific methods. The cave has an approximately site of at least 120m and has heights up to 12-15m. A first mapping of the cave was done by the documentation of the main features of the size measurements of the caves size and extent. Felix Henselowsky The Wadi Sabra - A contextual approach to the Palaeolithic Landscape – Appendix 2019-02-11T15:11:58+01:00 This Appendix contains further information on different topics of Hannah Parow – Souchon's PhD thesis (2019) The Wadi Sabra - A contextual approach to the Palaeolithic Landscape, listed as follows: 1) Methodology 2) Further material on the Wadi Sabra sites 3) Spearmans rs correlations for the diversity index and tool inventory size 4) Type list transformation reference 5) Faunal species used/not used in the calculations 6) Sites represented in the different chapters 7) Typological designation of the sites used in the thesis 8) R-Code for CCA and Postfit (with pers. comm. Georg Roth) 9)- 11) Further material on the CCA 1 -12 calculations 12) Blank counts dataset Plate I – Plate CXXXII Christian Willmes Eastward-moving convection-enhanced modons in shallow water in the equatorial tangent plane 2019-02-05T11:54:27+01:00 We report a discovery of steady long-living slowly eastward moving large-scale coherent twin cyclones, the equatorial modons, in the shallow water model in the equatorial beta-plane, the archetype model of the ocean and atmosphere dynamics in tropics. We start by constructing analytical asymptotic modon solutions in the non-divergent velocity approximation and then show by simulations with a high-resolution numerical scheme that such configurations evolve into steady dipolar solutions of the full model. In the atmospheric context, the modons persist in the presence of moist convection, being accompanied and enhanced by specific patterns of water-vapour condensation. Masoud Rostami Distribution modeling of paleofauna in the Western Mediterranean between the Heinrich events H5 and H4 2019-01-17T11:52:27+01:00 This master’s thesis deals with species distribution modeling (SDM) for eight selected prey animals of the Neanderthals and the anatomically modern human within the framework of the Collaborative Research Center 806 ("Our way to Europe"). This research was realized for three methods in three climatically different time slices during the Late Pleistocene. One profile method, one regression method and one machine learning method were used. A model was developed that performs these three methods in order to obtain a potential distribution of the paleofauna in the Late Pleistocene and to link it to the dispersal of humans in this region. The results show that all three methods predict conditions for the presence of the species which may have hunted from both Neanderthals and anatomically modern humans. However, there are differences in the predicted regions between the individual methods for each species. Another task was to determine the best performing method. Based on this work, MaxEnt, a machine learning method, emerged as the best performing method among the applied methods. Christian Willmes;Michael Holthausen Reconstruction of Late Pleistocene paleoenvironments in southern Germany using two high-resolution loess-paleosol records 2018-12-18T14:04:25+01:00 Two loess-paleosol sequences from the Heilbronn Basin in southwestern Germany, Frankenbach and Talheim, have been investigated to gain information about environmental conditions during the last interglacial-glacial cycle. Since paleoenvironmental research on terrestrial archives is crucial for a better understanding of past climatic and environmental conditions, the profiles were studied using a multi-proxy approach. Applied methods include the analyses of grain-size distribution, element contents, sediment color, rock magnetism, micromorphology, and black carbon (BC) via benzene polycarboxylic acids (BPCA). The data reveal that the two profiles show large variations in conservation due to their different geomorphologic positions. Moreover, the results imply a subarctic climate with stable conditions during the Middle Pleniglacial (MIS 3) in-situ soil formation phase while the Lower Pleniglacial (MIS 4) was characterized by erosion and reworking of Eemian and Early Glacial (MIS 5) material but also by accumulation of aeolian material during the late Lower Pleniglacial (MIS 4) in Frankenbach. The results further suggest that the Rhine River floodplain has been a major source for the accumulated material in the two profiles, which indicates westerly wind directions during the time of accumulation. The low GSI and U-Ratio of Upper Pleniglacial (MIS 2) sediments, supported by the overall high content of fine material, imply a larger distance to the source area. We give an overview of loess in the Heilbronn Basin and place it in a wider context of loess in Western Europe. Jonas Viehweger