气候变化领域集成服务门户(CCPortal): Paleoenvironments from robust loess stratigraphy using high-resolution color and grain-size data of the last glacial Krems-Wachtberg record (NE Austria)

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DOI	10.1016/j.quascirev.2020.106602
	Paleoenvironments from robust loess stratigraphy using high-resolution color and grain-size data of the last glacial Krems-Wachtberg record (NE Austria)
	Sprafke T.; Schulte P.; Meyer-Heintze S.; Händel M.; Einwögerer T.; Simon U.; Peticzka R.; Schäfer C.; Lehmkuhl F.; Terhorst B.
发表日期	2020
ISSN	0277-3791
卷号	248
英文摘要	The complex interplay of dust sedimentation, pedogenesis, and erosion/reworking in the formation of loess-paleosol sequences (LPS) challenges paleoenvironmental proxies. Here we show that color and grain size are essential parameters characterizing loess profiles and support robust stratigraphies as a basis for reconstructions in the context of local geo-ecological and large-scale paleoclimatic evolution. Detailed paleoenvironmental records from the period since the arrival of anatomically modern humans to the last glacial maximum are scarce in the Alpine surroundings. The c. 7.5 m thick LPS Krems-Wachtberg, NE Austria, known for its well-preserved Upper Paleolithic context at a depth of 5.5 m, formed between 40 and 20 ka BP by quasi-continuous dust-sedimentation, interrupted by phases of incipient pedogenesis and local reworking. The new KW2015 composite is based on three sections studied and sampled at 2.5 cm resolution. Color and grain size data support a robust stratigraphy for reconstructions of the pedosedimentary evolution. The marked transition from oxidized to reduced paleosols of KW2015 around 34–35 ka corresponds to the Middle-to Upper Pleniglacial transition as part of a general cooling trend from marine isotope stage (MIS) 3 to 2, intensely modulated by millennial-scale climatic fluctuations as recorded in the Greenland ice core data. The distinct response of KW2015 to these trends highlights that reconstructing LPS evolution based on a robust stratigraphy is a prerequisite to paleoenvironmental proxy interpretation. © 2020 The Author(s)
英文关键词	Alpine foreland; Granulometry; Last Glacial Maximum; Late Pleistocene; Loess; Paleoclimate; Paleoenvironment; Paleosol; Spectrophotometry; Upper Paleolithic
语种	英语
scopus关键词	Color; Dust; Grain size and shape; Sediments; Stratigraphy; Climatic fluctuations; Greenland ice cores; High resolution; Last Glacial Maximum; Loess stratigraphy; Marine isotope stages; Paleoenvironments; Parameters characterizing; Glacial geology; color; cooling; grain size; ice core; marine isotope stage; paleoenvironment; Paleolithic; pedogenesis; sedimentation; Arctic; Austria; Greenland
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151274
作者单位	Institute of Geography, University of Bern, Hallerstrasse 12, Bern, 3012, Switzerland; Department of Geography, RWTH Aachen University, Wüllnerstr. 5b, Aachen, 52056, Germany; Institute of Geography and Geology, University of Würzburg, Am Hubland, Würzburg, 97074, Germany; Institute for Oriental and European Archaeology, Austrian Academy of Sciences, Hollandstraße 11-13Vienna 1020, Austria; Department of Geography and Regional Research, University of Vienna, Althanstraße 14Vienna 1090, Austria
推荐引用方式 GB/T 7714	Sprafke T.,Schulte P.,Meyer-Heintze S.,et al. Paleoenvironments from robust loess stratigraphy using high-resolution color and grain-size data of the last glacial Krems-Wachtberg record (NE Austria)[J],2020,248.
APA	Sprafke T..,Schulte P..,Meyer-Heintze S..,Händel M..,Einwögerer T..,...&Terhorst B..(2020).Paleoenvironments from robust loess stratigraphy using high-resolution color and grain-size data of the last glacial Krems-Wachtberg record (NE Austria).Quaternary Science Reviews,248.
MLA	Sprafke T.,et al."Paleoenvironments from robust loess stratigraphy using high-resolution color and grain-size data of the last glacial Krems-Wachtberg record (NE Austria)".Quaternary Science Reviews 248(2020).