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Environmental change indicated by grain-size variations and trace elements: An example from the sandy-loess sediments from the Doroshivtsy site (Ukraine) Spatial

The recently discovered loess section of Doroshivtsy became famous due to archeological findings of the Gravettian. The profile represents a about 9 m sequence of sandy loess, intercalated by more humic horizons. It is situated in a flat gully and at an undercut slope of the Dniester River close to the village Doroshivtsy in the south-western Ukraine. Radiocarbon dating and luminescence ages are conclusive within the expected age range of the Gravettian period (22-28 ka). The loess section is composed...
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Influence of HCl pretreatment on laser diffraction measurements

Sample pretreatment methods in grain size (GS) analyses differ and their influence on GS distributions has been subject of controversial discussions. The standard sample preparation usually comprises the disaggregation into single primary particles. The organic binding material is oxidized by hydrogen peroxide (H2O2) and the containing carbonates are dissolved by hydrochloric acid (HCl). However, laser diffraction measurements of calcified sediment sequences or sediments with high contents of organic matter...
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Environmental change indicated by grain-size variations and trace elements: examples from two different sections - the sandy-loess sediments from the Doroshivtsy site (Ukraine) and the loess section Semlac (Romania) doi

Loess sequences provide important and at least a partial continuous record of Quaternary palaeoenvironmental change; some of the sequences even bury archaeological remains. In addition, loess-palaeosol sequences provide valuable information concerning environmental change and climate evolution. In this study, we compare two sections: (1) The Middle to Late Pleistocene loesspaleosol section of Semlac in western Romania (MIS 10 – 1), and (2) the sandy-loess section of Doroshivtsy in western Ukraine (MIS...
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GIS-Based Automated Landform Classification for Analysis of Archaeological Sites

This poster presents the first results of an attempt to classify archaeological sites by landform analysis of the landscape. To make further use of modelled DEM-derived site catchments, it is possible to classify the relief to be able to compare the sites environment quantitatively. To achieve that goal, we implemented the TPI-based landform classification approach from Weiss (2001) in ArcGIS and applied it to a study area in Andalusia (Spain) to compare the results for various Solutrean sites. The applied...
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Environmental Conditions during the Last Glacial Cycle in the Northern Harz Foreland

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Inverse modelling of systematic and random uncertainty of luminescence data: Applying Bayesian statistics on luminescence data

Bayesian statistics for higher precision luminescence ages requires separation of uncertainty into random and systematic parts. Here we introduce an inverse modelling approach to estimate a probability density function of the two uncertainty parts, based on published datasets. Each input dataset is tested for their random and systematic uncertainty, which explains reported ages and their number of inversions best. Each set of dates comprises a particular number of age inversions, which are assumed to be the...
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Integrating age information from different localities for stratigraphic marker beds: discussion of the Eltville tephra age (Western Europe)

Stratigraphic marker beds are often used in geosciences for regional and global correlation. For various reasons dating those layers directly proves to be difficult sometimes. In such cases ages from above and below such a horizon represent minimum- and maximum-ages. If these ages are determined from more than one location, it is possible to combine these ages, test their consistency and finally derive an age in agreement with the findings from most localities. Several approaches to integrate the age...
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Towards higher precision luminescence ages through including stratigraphic information

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D1: Analysis of Migration Processes due to Environmental Conditions between 40,000 and 14,000 a BP in the Rhine-Meuse-Area, Sedimentology and Geochemistry ‒ Provenience analyses of loess-paleosol sequences

During the Aurignacian (35,000 – 30,000 BP) Homo sapiens arrived for the first time in the Rhineland and recolonized the region after the Last Glacial Maximum (LGM) in the Magdalenian (20,000 – 14,000 BP). The D1 Project is part of the "Collaborative Research Centre 806 (CRC 806) – Our Way To Europe – Culture-Environment Interaction and Human Mobility in the Late Quaternary“ (see Fig.1) and focuses on reconstructing environmental conditions during the last glacial cycle (40,000 -...
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Evaluierung und Verbesserungspotentiale der Geochronologie basierend auf Löss-Paläobodenabfolgen des letzten Glazialzyklus im Rhein-Maas Gebiet

Im Fokus des Teilprojektes D1 des SFB 806 „Unser Weg nach Europa“ steht die Verbesserung des Verständnisses der Klima- und Umweltbedingungen während der ersten Ankunft des Modernen Menschen um 40.000 BP und seiner Rückkehr zwischen 18.000 und 12.000 BP im Westen Zentraleuropas. Zahlreiche Archive aus den Einzugsgebieten von Maas und Rhein ermöglichen anhand von komplexen Löss-Paläobodenabfolgen einen detaillierten Einblick in eine vielseitige Vergangenheit. Der zeitliche Fokus erstreckt sich von den...
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Interdisziplinäre Forschungen zu eiszeitlichen Großsäugern aus der Ziegeleigrube Coenen

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When the Desert Dried Up: Late Prehistoric Cultures and Contacts in Egypt and Northern Sudan

The western hinterland of Lower Nubia and Upper Egypt is desert, an area of extreme character, with little rainfall and sparse vegetation, nearly unpeopled and seemingly endless in its extension. Looking closer at that vast region, one recognizes that the desert is not that barren and simple but offers a diversified landscape and an enormous amount of archaeological traces of past human existence. Interest in prehistoric archaeology of the desert developed very slowly in Egypt and Sudan. Most of our...
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