DOI: 10.1016/j.quascirev.2018.07.034
Scopus记录号: 2-s2.0-85050822195
论文题名: Paleoenvironmental conditions and sedimentation dynamics in Central Europe inferred from geochemical data of the loess-paleosol sequence at Süttő (Hungary)
作者: Profe J. ; Neumann L. ; Novothny Á. ; Barta G. ; Rolf C. ; Frechen M. ; Ohlendorf C. ; Zolitschka B.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 196 起始页码: 21
结束页码: 37
语种: 英语
英文关键词: Central Europe
; Chemostratigraphy
; Cluster analysis
; Inorganic geochemistry
; Paleoclimatology
; Pleistocene
; Sedimentology of loess
; XRF scanning of discrete samples
Scopus关键词: Cluster analysis
; Dust
; Dynamics
; Feldspar
; Geochronology
; Grain size and shape
; Magnetic susceptibility
; Multivariant analysis
; Recycling
; Rubidium alloys
; Sedimentation
; Sediments
; Sorting
; Strontium alloys
; Ternary alloys
; Titanium
; Weathering
; Zirconium
; Central Europe
; Chemostratigraphy
; Discrete sample
; Inorganic geochemistries
; Paleoclimatology
; Pleistocene
; Geochemistry
; chemostratigraphy
; cluster analysis
; continental crust
; data set
; dust
; environmental conditions
; eolian deposit
; felsic rock
; fluvial deposit
; grain size
; loess
; magnetic susceptibility
; marine isotope stage
; paleoclimate
; paleoenvironment
; paleosol
; pedogenesis
; Pleistocene
; sediment analysis
; sedimentation
; source-sink dynamics
; X-ray fluorescence
; Carpathian Basin
; Hungary
英文摘要: This study provides a detailed geochemical record of one of the best studied loess-paleosol sequences (LPS) in Hungary covering Marine Isotope Stage (MIS) 6 to MIS 2. Süttő is situated in the northwestern Carpathian Basin at the transition between oceanic and continental climate. We investigated weathering intensity, dust provenance and sedimentation dynamics by high-resolution X-ray fluorescence (XRF) scanning of discrete samples in comparison with quantitative XRF and other published proxy data such as grain-size, magnetic susceptibility and micromorphology. Multivariate statistics unravel pedogenesis in terms of decalcification and grain-size dynamics as processes controlling the elemental composition. Furthermore, high-resolution chemostratigraphy indicates geochemical homogeneity for mature MIS 5 paleosols and the modern soil. Together with the A-CN-K plot providing no hint for K-feldspar weathering, semi-arid continental paleoenvironmental conditions are considered as prevailing. Dust provenance is studied by geochemical reference literature data from potential ultimate dust source areas, Th/metal ratios and comparison with the composition of the upper continental crust (UCC). Results indicate a felsic rock composition and a stable dust source, albeit immediate (adjacent Danube floodplains) and ultimate dust sources (surrounding mountain belts) need to be distinguished. According to the Sr-K-Rb plot, the Austroalpine cover nappes area northwest of Süttő might be the dominant ultimate dust source. The weathering-resistant elements Al, Ti and Zr as well as Zr/metal ratios indicate Zr addition and thus strongest sediment sorting and/or recycling during MIS 6. Since Al, Ti and Zr show minimal correlations with grain-size, we suggest a cascade-alike transport pathway from ultimate source to sink involving multiple sediment recycling and sorting cycles in both fluvial and eolian domains. Therefore, this study highlights how high-resolution qualitative geochemical data contributes to a better understanding of paleoenvironmental and sedimentation dynamics at LPS. Application of such a versatile geochemical screening tool is of broad interest to the scientific community working on (terrestrial) paleoenvironmental archives that are commonly discretely sampled. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112080
Appears in Collections: 气候减缓与适应
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作者单位: University of Bremen, Institute of Geography, GEOPOLAR, Celsiusstr. 2, Bremen, D-28359, Germany; Justus Liebig University Gießen, Department of Geography, Section Geoinformatics and Remote Sensing, Senckenbergstr. 1, Gießen, D-35390, Germany; University of Education Heidelberg, Department of Geography, Research Group for Earth Observation (rgeo), Czernyring 22/11-12, Heidelberg, D-69115, Germany; ELTE Eötvös Loránd University, Department of Physical Geography, Pázmány Péter Sétány 1/C, Budapest, H-1117, Hungary; Leibniz Institute for Applied Geophysics (LIAG), Department of Geochronology, Stilleweg 2, Hannover, D-30655, Germany; Leibniz Institute for Applied Geophysics (LIAG), Department of Rock Physics and Borehole Geophysics, Fredelshofer Straße 3, Einbeck, D-37574, Germany
Recommended Citation:
Profe J.,Neumann L.,Novothny Á.,et al. Paleoenvironmental conditions and sedimentation dynamics in Central Europe inferred from geochemical data of the loess-paleosol sequence at Süttő (Hungary)[J]. Quaternary Science Reviews,2018-01-01,196