The MIS 3/2 transition in a new loess profile at Krems-Wachtberg East – A multi-methodological approach

Meyer-Heintze, Simon; Sprafke, Tobias; Schulte, Philipp; Terhorst, Birgit; Lomax, Johanna; Fuchs, Markus; Lehmkuhl, Frank; Neugebauer-Maresch, Christine; Einwögerer, Thomas; Händel, Marc; Simon, Ulrich; Castillo, Berenice Solís

doi:10.1016/j.quaint.2017.11.048

Cited by 16 publications

(8 citation statements)

References 60 publications

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“…However, PC abundance in palaeosols appear to be inconsistent with classic concepts of soil formation, which would require complete decalcification prior to subsequent pH-dependent processes like brunification. In contrast, remarkably high PC contents are also reported for initial soil horizons toward the end of MIS 3 at the Krems-Wachtberg site (Lower Austria), where soil formation is assumed to have taken place within an alkaline environment (Meyer-Heintze et al, 2017). Based on our data, the presence of PC in a soil matrix points to an accretionary nature of most observed palaeosols in the Schwalbenberg LPS.…”

Section: Decalcification and Formation Of Palaeosolssupporting

confidence: 53%

Combining Inorganic and Organic Carbon Stable Isotope Signatures in the Schwalbenberg Loess-Palaeosol-Sequence Near Remagen (Middle Rhine Valley, Germany)

et al. 2020

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Western Central European Loess-Palaeosol-Sequences (LPS) provide valuable terrestrial records of palaeoenvironmental conditions, which formed in response to variability in the North Atlantic climate systems. Over the last full glacial cycle (∼130 ka), climate oscillations within these systems are best documented in deep sea-and ice cores; the responses of terrestrial systems are not yet fully understood. A better understanding of metabolism governing input and output variables of organic-and inorganic C pools is, however, crucial for investigating landscape-atmospheric feedback processes and in particularly, for understanding the formation of calcareous LPS as environmental archives. Here we quantify the contributions of primary carbonates (PC) and secondary carbonates (SC) to the overall inorganic carbon pool down a LPS at the Schwalbenberg site, based on the natural abundance ratio of stable carbon isotopes (δ 13 C) and contents of the organic-and inorganic C pools. This facilitates detailed insights into the carbonate metabolism and hence, loessification and percolation processes. PC accumulate predominantly in cold phases during periods of reduced biological activity and become leached during wetter and warmer periods contemporary with higher rates of SC re-precipitation and total organic carbon (TOC) increases due to enhanced biomass production. We find that mineral dust input is most significant during stadials, as well as toward the end of warmer interstadials, characterised by gradual cooling back to stadial conditions. Pedogenesis in the Schwalbenberg LPS kept pace with surface accumulation of mineral dust. This indicates that palaeosols are of accretionary nature, which gives raise to the idea of incorporation of former topsoils in preserved subsoil horizons. Our study decodes fundamental aspects of the link between atmospheric dust circulation and terrestrial records in western Central Europe. In addition, interdependencies between factors governing the regional moisture budged and LPS can be reconstructed in a more holistic way than before.

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Section: Decalcification and Formation Of Palaeosolssupporting

confidence: 53%

Combining Inorganic and Organic Carbon Stable Isotope Signatures in the Schwalbenberg Loess-Palaeosol-Sequence Near Remagen (Middle Rhine Valley, Germany)

et al. 2020

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“…Pleistocene sediment sequences were investigated in these areas predominantly with the aim of palaeoclimatic reconstructions but frequently independent of the archaeological background (Fink, 1954(Fink, , 1962(Fink, , 1976(Fink, -1978Terhorst et al, 2011Terhorst et al, , 2014Meyer-Heintze et al, 2018;Sprafke et al, 2020). Studies using geochemical approaches have rarely been applied to archaeological sites, which makes comparisons with well-studied LPSs devoid of archaeological layers difficult.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of geochemical proxies and radiocarbon data from a loess record of the Upper Palaeolithic site Kammern-Grubgraben, Lower Austria

Reiss

Stüwe

Einwögerer

et al. 2022

E&G Quaternary Sci. J.

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Abstract. Two loess sections from the Upper Palaeolithic site of Kammern-Grubgraben (Lower Austria) were analysed to test geochemical proxies, as well as radiocarbon data of different components, for their reliability and consistency in an archaeological context. Only a reliable basal age (28.9–27.8 ka cal BP) was obtained from charcoal fragments derived from a tundra gley underlying the archaeological horizons and assigned to Greenland Interstadials 3 or 4. Grain size, organic and inorganic geochemistry, and stable isotopes of the fine organic fraction (δ13Corg) and of rhizoconcretions (δ13C, δ18O) were analysed to provide information on palaeoenvironmental conditions. Low-resolution geochemical and sedimentological analyses document a humidity-related variability, while δ13Corg values indicate predominant C3 vegetation. High-resolution elemental variations derived from X-ray fluorescence scanning exhibit increasing Ca and decreasing Fe and Ti values, indicating drier conditions towards the top. Secondary pedogenic carbonate concretions provide post-sedimentary (Holocene) ages and are not suitable for assessing climate and environmental changes for the Palaeolithic.

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“…The IR50 age is corrected for fading according to Huntley and Lamothe, 2001). with an enhanced redness and a darkening of the material compared to pure loess (Schwertmann, 1993;Sprafke, 2016;Vlaminck et al, 2016;Meyer-Heintze et al, 2018). 5).…”

Section: Luminescence Datingmentioning

confidence: 99%

“…Still, pedogenic processes do not appear as extensive as in unit IV (Figs 3-5). This might be connected to interstadial rather than interglacial climatic conditions with lower temperatures and drier soil-moisture regimes, causing less material alteration and weaker soil development resulting in the formation of polygenetic Bw horizons in units III.II and III.I (Kadereit et al, 2013;Terhorst et al, 2015;Prud'homme et al, 2015Prud'homme et al, , 2016Sauer et al, 2016;Sprafke, 2016;Meyer-Heintze et al, 2018). The sudden disappearance of medium and coarse sand-sized particles between around 145 cm and 170 cm depth at the upper part of unit III.II, which make up 8 to 5% of the grain-size composition above and below, might indicate fresh input of loess material.…”

Section: Sedimentological Indications Of Environmental Fluctuationsmentioning

confidence: 99%

New results concerning the pedo‐ and chronostratigraphy of the loess–palaeosol sequence Attenfeld (Bavaria, Germany) derived from a multi‐methodological approach

Krauß

Klasen

Schulte

et al. 2021

J Quaternary Science

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Loess-palaeosol sequences (LPS) represent important records of palaeoenvironmental dynamics throughout the Quaternary. During the Pleistocene's dry and cold phases, the Danube's riverbed was one of the major sources for loess sediments that built up LPS in southern Germany and southeastern Europe. Surprisingly, studies addressing Bavarian LPS along the Danube River often lack actuality. The Attenfeld site was one of them and is often cited as a typical LPS. Nevertheless, the site's previous interpretations are based on a few empirical data and field observations. Considering the site's closeness to the sediment's source area, the Alps, and the region's importance in Middle and Upper Palaeolithic migrational movements, those former renditions needed an evaluation. Therefore, we applied a multi-proxy approach (including analyses of grain-size distribution, element composition, and sediment colour attributes) combined with optically stimulated luminescence. Based on our findings, we conclude that the Attenfeld site's former interpretations might be too generalised. We identified units that were not mentioned by previous studies (e.g. Early Glacial dark greyish horizon). Field observations, sediment characteristics, and age estimates indicate sediment deposition of the dated units partly before MIS 4, which contrasts with previous interpretations. The results further demonstrate how sensitive LPS are to environmental settings and dynamics.

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The MIS 3/2 transition in a new loess profile at Krems-Wachtberg East – A multi-methodological approach

Cited by 16 publications

References 60 publications

Combining Inorganic and Organic Carbon Stable Isotope Signatures in the Schwalbenberg Loess-Palaeosol-Sequence Near Remagen (Middle Rhine Valley, Germany)

Combining Inorganic and Organic Carbon Stable Isotope Signatures in the Schwalbenberg Loess-Palaeosol-Sequence Near Remagen (Middle Rhine Valley, Germany)

Evaluation of geochemical proxies and radiocarbon data from a loess record of the Upper Palaeolithic site Kammern-Grubgraben, Lower Austria

New results concerning the pedo‐ and chronostratigraphy of the loess–palaeosol sequence Attenfeld (Bavaria, Germany) derived from a multi‐methodological approach

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