气候变化领域集成服务门户(CCPortal): High-resolution geochemical record of environmental changes during MIS 3 from the northern Alps (Nesseltalgraben; Germany)

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DOI	10.1016/j.quascirev.2019.06.013
	High-resolution geochemical record of environmental changes during MIS 3 from the northern Alps (Nesseltalgraben; Germany)
	Mayr C.; Stojakowits P.; Lempe B.; Blaauw M.; Diersche V.; Grohganz M.; Correa M.L.; Ohlendorf C.; Reimer P.; Zolitschka B.
发表日期	2019
ISSN	0277-3791
起始页码	122
结束页码	136
卷号	218
英文摘要	Ravine slopes at the recently discovered Nesseltalgraben site in southeastern Germany provide a unique last glacial sediment record for the Northern Calcareous Alps. The 21 m-long profile is dominated by fine-grained lacustrine-palustrine sediments overlain by several metres of glacifluvial gravels and lodgement tills of the Last Glacial Maximum and underlain by a diamicton. The age model includes 29 radiocarbon analyses and one paleomagnetic anomaly (Laschamp event) together providing a modelled age range from c. 59 to 29.6 ka cal BP, i.e. Marine Isotope Stage (MIS) 3. Apart from a description of the lithofacies, X-ray-fluorescence (XRF) scanning and elemental analyses provide high-resolution records of the geochemical composition. Multivariate analyses of XRF data separate Ca from other major elements. Carbonate contents, represented by Ca and total inorganic carbon, reach maxima in repeatedly occurring calcareous silty to sandy layers and are related to glacigenic origin. These indicate repeated inner-alpine local glaciations during stadials of MIS 3. Scanning electron microscopy and XRF data confirm the detrital origin of these layers. In contrast, organic matter and elements more resistant to chemical weathering (Si, Ti, Zr) accumulated during interstadials and concurrently elevated Rb/Sr ratios indicate intensified weathering. The high-frequency proxy variations determined for Nesseltalgraben reflect interstadial-stadial climate variability comparable with oxygen-isotope records from Greenland ice cores and Alpine speleothems. Thus, Nesseltalgraben is among the very few independently dated sediment records from continental Europe covering the entire MIS 3 and reflecting the full Dansgaard-Oeschger climate variability. © 2019 Elsevier Ltd
英文关键词	Central Europe; Dansgaard-Oeschger cycles; Glaciation; Grain-size analyses; Greenland interstadials; Lacustrine-palustrine sediment; Middle Würmian; Paleoclimatology; Pleistocene; Radiocarbon dating
语种	英语
scopus关键词	Calcium; Climatology; Geochemistry; Isotopes; Multivariant analysis; Scanning electron microscopy; Sediments; Weathering; Central Europe; Dansgaard-Oeschger cycles; Glaciation; Grain size analysis; Interstadials; Paleoclimatology; Palustrine; Pleistocene; Radiocarbon dating; Glacial geology; chemical weathering; climate variation; environmental change; fine grained sediment; geochemistry; glaciation; grain size; historical record; interstadial; Last Glacial; Last Glacial Maximum; lithofacies; marine isotope stage; paleoclimate; paleomagnetism; Pleistocene; radiocarbon dating; speleothem; Alps; Arctic; Germany; Greenland; Greenland Ice Sheet
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/151858
作者单位	Institute of Geography, Friedrich-Alexander-Universität Erlangen-Nürnberg, Wetterkreuz 15, Erlangen, 91058, Germany; Department of Earth and Environmental Sciences, Paleontology and Geobiology, Ludwig-Maximilians-Universität München, Richard-Wagner-Str. 10, München, 80333, Germany; GeoBio-Center, Ludwig-Maximilians-Universität München, Richard-Wagner-Str. 10, München, 80333, Germany; Institute of Geography, Universität Augsburg, Alter Postweg 118, Augsburg, 86135, Germany; Chair of Engineering Geology, Technical University of Munich, Arcisstraße 21, München, 80333, Germany; Centre for Climate, The Environment and Chronology (14CHRONO), School of Natural and Built Environment, Queen's University Belfast, Belfast BT7 1NN, United Kingdom; Schiller-Allee 1, Bayerisch Gmain83457, Germany; GeoZentrum Nordbayern, Friedrich-Alexander-Universität Erlangen-Nürnberg, Loewenichstr. 28, Erlangen, 91054, Germany; Istituto di Scienze Marine (CNR-ISMAR), Consiglio Nazionale delle Ricerche, Via Gobetti 101, Bologna, 40129...
推荐引用方式 GB/T 7714	Mayr C.,Stojakowits P.,Lempe B.,et al. High-resolution geochemical record of environmental changes during MIS 3 from the northern Alps (Nesseltalgraben; Germany)[J],2019,218.
APA	Mayr C..,Stojakowits P..,Lempe B..,Blaauw M..,Diersche V..,...&Zolitschka B..(2019).High-resolution geochemical record of environmental changes during MIS 3 from the northern Alps (Nesseltalgraben; Germany).Quaternary Science Reviews,218.
MLA	Mayr C.,et al."High-resolution geochemical record of environmental changes during MIS 3 from the northern Alps (Nesseltalgraben; Germany)".Quaternary Science Reviews 218(2019).