| DOI: | 10.1016/j.palaeo.2015.03.016
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| 论文题名: | Paleoclimate and weathering of the Tokaj (Hungary) loess-paleosol sequence |
| 作者: | Schatz A.-K.; Scholten T.; Kühn P.
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| 刊名: | Palaeogeography, Palaeoclimatology, Palaeoecology
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| ISSN: | 0031-0182
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| 出版年: | 2015
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| 卷: | 426 | | 起始页码: | 170
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| 结束页码: | 182
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| 语种: | 英语
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| 英文关键词: | Carpathian Basin
; Loess
; Paleoclimate
; Paleosol
; Transfer function
; Weathering index
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| 英文摘要: | The Tokaj loess-paleosol sequence (Northeast Hungary) is a well-studied site in Southeast Europe where detailed paleoenvironmental reconstructions of the Quaternary have been carried out. In this study, the geochemical composition of samples from the upper part of the sequence (45-21. ka) was analyzed and a variety of commonly used weathering indices and element ratios were applied to estimate weathering intensity, a common semi-quantitative proxy of paleoclimatic conditions. Further, similarities and differences between these weathering indices and their sensitivity to changes in paleoclimatic conditions were assessed. Results indicate that all of them accurately track changes in weathering intensity and are, with minor exceptions, very similar to each other. Based on different transfer functions for major and trace element concentrations (XRF), mass-specific magnetic susceptibility (Χ) and stable carbon isotopic (δ13C) data, mean annual paleotemperature and mean annual paleoprecipitation for the time intervals of paleosol formation (45-27ka) and dust deposition (27-21ka) were calculated. Results differ depending on the respective transfer function and method but agree with (X-, δ13C-based), or slightly overestimate (XRF-based), previously published paleoclimate data of the region. XRF- and δ13C-based results converge to a mean annual temperature (MAT) range of 8.5-10°C (paleosol) and 8-9°C (loess) and a mean annual precipitation (MAP) range of 700-900mma-1 (paleosol) and 550-700mma-1 (loess). © 2015 Elsevier B.V. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/68961
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| Appears in Collections: | 过去全球变化的重建
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作者单位: | Soil Science and Geomorphology Group, Department of Geosciences, Faculty of Science, University of Tübingen, Rümelinstraße 19-23, Tübingen, Germany
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| Recommended Citation: | |
Schatz A.-K.,Scholten T.,Kühn P.. Paleoclimate and weathering of the Tokaj (Hungary) loess-paleosol sequence[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,426
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