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Found 50 datasets

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Die Eben-Zone: Fingerabdruck des ausklingenen Last Glacial Maximum am Niederrhein?

Für die Untersuchung quartärer Sedimente ist die Lumineszenzdatierung die wichtigste Methodik, um geowissenschaftliche Befunde mit einer verlässlichen Chronologie auszustatten. Verbesserte Messprotokolle und statistische Verfahren erhöhen zunehmend die Präzision der errechneten Alter. In Kombination mit sedimentologischen und geochemischen Methoden lassen sich umfassende Modelle zur Genese der Landschaft mit der Zeit formulieren. Darüber hinaus bieten sie die Möglichkeit die Ergebnisse und Probleme der...
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Neue Ansätze zur Auswertung und Interpretation von Korngrößendaten

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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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Interdisziplinäre Forschungen zu eiszeitlichen Großsäugern aus der Ziegeleigrube Coenen

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A multi-proxy analysis of two loess-paleosol sequences in the Northern Harz Foreland

Within the second phase of the “Collaborative Research Centre 806 (CRC806) – Our Way to Europe – Culture-Environment Interaction and Human Mobility in the Late Quaternary” two loess-paleosol sections in the northern Harz foreland have been investigated. The region is part of the European loess belt, which closes up to the north with the northern loess boundary where Weichselian silt and sand sized aeolian sediments interlock. To the south the loess belt is limited by central German uplands. Here the...
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