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Found 456 datasets

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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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Testing feldspar against quartz luminescence dating of the sandy loess sediments from the Doroshivtsy site (Ukraine) doi

Post-infrared infrared stimulated luminescence (pIRIR) dating has reactivated the use of feldspar minerals to date Pleistocene deposits. We compared pIRIR stimulation measured at 290 °C (pIRIR290) of coarse grain feldspar (100–200 μm) and optically stimulated luminescence (OSL) of coarse grain quartz (100–150 μm) with radiocarbon dating. The samples were taken from the lower part of the Doroshivtsy sandy loess sequence, which contains Gravettian artefact layers. The site is one of the very few sections in...
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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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LGM sealevel change (HiRes) Spatial PaleoMaps

Based on the GEBCO 2014 dataset [1], the area between the 0m coastline of today and the -120m coastline of the Last Glacial Maximum (LGM), is derived and provided in this dataset. To achieve a more realistic and higher resoluting coastline, for producing larger scale maps, the gebco dataset was interpolated from the 30 arc seconds original resolution, to a 0,001 degree resoluting raster. [1] http://www.gebco.net/data_and_products/gridded_bathymetry_data/
Keywords: bathymetrie lgm
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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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Integrating age information from different localities for stratigraphic marker beds: discussion of the Eltville Tephra age

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Towards higher precision luminescence ages through including stratigraphic information

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Integrating age information from different localities for stratigraphic marker beds: application to the Eltville tephra (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 those cases ages from above and below such a horizon represent minimum- and maximum-ages. These are often determined from more than one location and this gives the possibility to combine these ages, test their consistency and finally derive an age in agreement with the findings from most localities. We present a novel approach to...
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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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