Found 106 datasets

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Impacts of surface boundary conditions on regional climate model simulations of European climate during the Last Glacial Maximum doi Temporal

We examine the influences of North Atlantic sea surface temperatures (SSTs) and vegetation on regional climate simulations over Europe during the Last Glacial Maximum (LGM). Simulated regional temperature and precipitation patterns over Europe are considerably improved when using revised SSTs based on proxy data. Likewise, the simulated permafrost is more accurately reproduced with the SST modifications. These improvements are partially related to the changed regional atmospheric circulation due to the...
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Neandertals or Early Modern Humans? A revised 14C chronology and geoarchaeological study of the Szeletian sequence in Szeleta Cave (Kom. Borsod-Abaúj-Zemplén) in Hungary

Szeleta Cave near Miskolc (Hungary) is the eponymous site for the Szeletian technological group thought to reflect the last occurrence of Neanderthals in Central Europe. Because the Szeletian lithic industry contains both Middle Paleolithic and Upper Paleolithic elements, it is usually regarded as a “transitional” industry. As such, the development of a precise age model for the Szeletian would add substantial information to a period of population replacements in Europe. This concerns the timing of...
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Analyzing two-dimensional effects in central loop transient electromagnetic sounding data using a semi-synthetic tipper approach doi

We present a simple and feasible approach to analyze and identify two dimensional (2D) effects in central loop transient electromagnetic (TEM) sounding data and the correspondingly derived quasi 2D conductivity models. The proposed strategy is particularly useful to minimize interpretation errors. It is based on the calculation of a semi-synthetic TEM-tipper at each sounding and for each observational transient time point. The semi-synthetic TEM-tipper is derived from the measured vertical component of the...

Millenial scale climate oscillations recorded in the Lower Danube loess over the last glacial period doi

In this study we provide a correlative age model for last glacial loess at the Rasova-Valea cu Pietre site in the Lower Danube region, based on the correlation of palaeoenvironmental proxies to independently dated palaeoclimate archives, luminescence dating and independent age control provided by the geochemically confirmed presence of the Campanian Ignimbrite (CI) tephra. The CI tephra, originating in the Phlegrean fields of southern Italy, has been dated elsewhere by 40Ar/39Ar to 39–40 ka BP, and is...
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The early upper paleolithic of the Banat and recent research at the paleolithic site of Tincova


Tracing the Influence of Mediterranean Climate on Southeast Europe during the past 350,000 years doi

Loess-palaeosol sequences are valuable archives of past environmental changes. Although regional palaeoclimatic trends and conditions in Southeastern Europe have been inferred from loess sequences, large scale forcing mechanisms responsible for their formation have yet to be determined. Southeastern Europe is a climatically sensitive region, existing under the strong influence of both Mediterranean and continental climates. Establishment of the spatial and temporal evolution and interaction of these...
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Three climatic cycles recorded in a loess-paleosol sequence at Semlac (Romania) – implications for dust accumulation in south-eastern Europe doi Spatial

Recent investigations of the Semlac loess section in the south-eastern Carpathian Basin, which is situated at an undercut slope position on the right bank of the Mureş River in its lower reaches (Banat region, western Romanian), are presented and discussed. Dating back to marine isotope stage (MIS) 10, the more than 10 m thick loess sequence includes four fossil soil-complexes developed in homogenous and relatively fine silty loess. Because of the good preservation of the sediment, Semlac is regarded as a...
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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 are being investigated. The region is part of the Northern European loess belt. The northern edge of the loess distribution is characterized by an interlocking of Weichselian silt and sand sized aeolian sediments. To the south the Northern European loess belt is limited by the...

Towards a revised stratigraphy for the Middle to Upper Palaeolithic Transition at La Güelga (Narciandi, Asturias, Spain) - Micromorphological investigations and new radiocarbon data Temporal

The archaeological sequence of the Palaeolithic site of La Güelga apparently shows an interstratification of Aurignacian between Mousterian and Châtelperronian layers, a sequence which disagrees with the stratigraphic model for the Middle to Upper Palaeolithic transition in SW-Europe. We analyzed the witness section of the interior sector in archaeological zone D using micromorphology and collected new radiocarbon dates for the Aurignacian and presumably Châtelperronian levels in order to provide...
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Neolithic transition and lithic technology: The Epipalaeolithic and Early Neolithic assemblages of Ifri Oudadane, NE-Morocco Temporal

Ifri Oudadane represents one of the few recently excavated sites in NW-Africa which permits a study of the Neolithic transition. The site is dated by 23 radiocarbon ages suggesting an occupation between 11.0 and 5.7 ka calBP. The well-documented Neolithic transition occurred at about 7.6 ka calBP. This transition is marked by the appearance of pottery, cereals and legumes. Furthermore, geochemistry and micromorphology indicate several changes in the sedimentation milieu. One of the most interesting...
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Hydrogeological investigations of shallow groundwater aquifers in an arid, data-scarce coastal region (El Daba’a area, Northwestern Coast of Egypt) doi Temporal

Hydrogeological investigations in arid regions are particularly important to support sustainable development. The study area, El Daba’a in northwestern Egypt, faces scarce water resources as a result of reported climate change that particularly affects the southern Mediterranean coast and increases stress on the local groundwater reserves. This change in climate affects the area in terms of drought, over-pumping and unregulated exploration ofgroundwater for irrigation purposes. The hydrogeological...

Palaeohydrological evolution and implications for palaeoclimate since the Late Glacial at Laguna de Fuente de Piedra, southern Spain doi

Here, we present a terrestrial multi-proxy record of Late Quaternary environmental changes in the southern Iberian Peninsula covering approximately 30 ka. This sedimentary record originates from a saline playa lake (Laguna de Fuente de Piedra) hosted within a complex geological setting dominated by Triassic claystones and evaporites, Jurassic carbonates and Miocene deposits leading to a complex hydrogeological setting. Dissolution of evaporites in the catchment and intense evaporation are responsible for...