DOI: 10.1016/j.quascirev.2016.10.015
Scopus记录号: 2-s2.0-84995790121
论文题名: Geochronological (OSL) and geomorphological investigations at the presumed Frankfurt ice marginal position in northeast Germany
作者: Hardt J. ; Lüthgens C. ; Hebenstreit R. ; Böse M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 154 起始页码: 85
结束页码: 99
语种: 英语
英文关键词: Frankfurt ice marginal position
; Geochronology
; Northeast Germany
; Optically stimulated luminescence dating
; Scandinavian Ice Sheet
; Weichselian glaciation
Scopus关键词: Deposits
; Geochronology
; Glacial geology
; Glaciers
; Luminescence
; Frankfurt ice marginal position
; Ice sheet
; Northeast Germany
; Optically stimulated luminescence
; Weichselian glaciation
; Ice
; geochronology
; geomorphological mapping
; glaciofluvial deposit
; ice shelf
; landscape evolution
; luminescence dating
; quartz
; radiocarbon dating
; Scandinavian Ice Sheet
; soil stabilization
; Weichselian
; Barnim
; Brandenburg [Germany]
; Denmark
; Frankfurt am Main
; Germany
; Hesse
英文摘要: The Weichselian Frankfurt ice marginal position in northeast Germany has been critically discussed in the past owing to weak morphological evidence and a lack of clear sedimentological records. This study aims to contribute to this discussion with new geochronological and geomorphological results. Apart from very few cosmogenic exposure ages, the time frame is to date still based on long distance correlation with radiocarbon chronologies. We selected a study site in a key position regarding the classic location of the Frankfurt ice marginal position and the recently described arcuate ridge structures on the Barnim plateau. For the first time we present Optically Stimulated Luminescence (OSL) ages of quartz from glaciofluvial deposits for this Weichselian phase. Our results indicate an advance of the Scandinavian Ice Sheet (SIS) at around 34.1 ± 4.6 ka. This is in agreement with OSL ages from sandur deposits at the Brandenburg ice marginal position located farther south and could also be correlated with the Klintholm advance in Denmark. The subsequent meltdown phase lasted until around 26.3 ± 3.7 ka. During the meltdown phase a minor oscillation of the SIS caused the formation of the recently described arcuate ridges on the Barnim till plain. Recalculated surface exposure ages of glacigenic boulders with an updated global production rate indicate a landscape stabilization phase at around 22.7 ± 1.6 ka, which is in agreement with our ages. A phase of strong aeolian activity has been dated with OSL to 1 ± 0.1 ka; this may have been triggered by human activities that are documented in this region for the medieval period. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59379
Appears in Collections: 过去全球变化的重建
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作者单位: Freie Universität Berlin, Department of Earth Sciences, Institute of Geographical Sciences, Physical Geography, Berlin, Germany; University of Natural Resources and Life Sciences, Institute of Applied GeologyVienna, Austria
Recommended Citation:
Hardt J.,Lüthgens C.,Hebenstreit R.,et al. Geochronological (OSL) and geomorphological investigations at the presumed Frankfurt ice marginal position in northeast Germany[J]. Quaternary Science Reviews,2016-01-01,154