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Late Pleistocene fluvial dynamics in the Upper Rhine graben and the Hochrhine Area - chronological frame

Frechen, M. ; Ellwanger, D. ; Hinderer, Matthias ; Lämmermann-Barthel, Jörg ; Neeb, Inge ; Techmer, A. (2010)
Late Pleistocene fluvial dynamics in the Upper Rhine graben and the Hochrhine Area - chronological frame.
In: International Journal of Earth Science, 99 (8)
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

During the Pleistocene, the Rhine glacier system acted as a major south–north erosion and transport medium from the Swiss Alps into the Upper Rhine Graben, which has been the main sediment sink forming low angle debris fans. Only some aggradation resulted in the formation of terraces. Optically stimulated luminescence (OSL) and radiocarbon dating have been applied to set up a more reliable chronological frame of Late Pleistocene and Holocene fluvial activity in the western Hochrhein Valley and in the southern part of the Upper Rhine Graben. The stratigraphically oldest deposits exposed, a braided-river facies, yielded OSL age estimates ranging from 59.6 ± 6.2 to 33.1 ± 3.0 ka. The data set does not enable to distinguish between a linear age increase triggered by a continuous autocyclical aggradation or two (or more) age clusters, for example around 35 ka and around 55 ka, triggered by climate change, including stadial and interstadial periods (sensu Dansgaard–Oeschger cycles). The braided river facies is discontinuously (hiatus) covered by coarse-grained gravel-rich sediments deposited most likely during a single event or short-time period of major melt water discharge postdating the Last Glacial Maximum. OSL age estimates of fluvial and aeolian sediments from the above coarse-grained sediment layer are between 16.4 ± 0.8 and 10.6 ± 0.5 ka, and make a correlation with the Late Glacial period very likely. The youngest fluvial aggradation period correlates to the beginning of the Little Ice Age, as confirmed by OSL and radiocarbon ages.

Typ des Eintrags: Artikel
Erschienen: 2010
Autor(en): Frechen, M. ; Ellwanger, D. ; Hinderer, Matthias ; Lämmermann-Barthel, Jörg ; Neeb, Inge ; Techmer, A.
Art des Eintrags: Bibliographie
Titel: Late Pleistocene fluvial dynamics in the Upper Rhine graben and the Hochrhine Area - chronological frame
Sprache: Englisch
Publikationsjahr: 1 Dezember 2010
Titel der Zeitschrift, Zeitung oder Schriftenreihe: International Journal of Earth Science
Jahrgang/Volume einer Zeitschrift: 99
(Heft-)Nummer: 8
URL / URN: http://link.springer.com/article/10.1007/s00531-009-0482-9
Kurzbeschreibung (Abstract):

During the Pleistocene, the Rhine glacier system acted as a major south–north erosion and transport medium from the Swiss Alps into the Upper Rhine Graben, which has been the main sediment sink forming low angle debris fans. Only some aggradation resulted in the formation of terraces. Optically stimulated luminescence (OSL) and radiocarbon dating have been applied to set up a more reliable chronological frame of Late Pleistocene and Holocene fluvial activity in the western Hochrhein Valley and in the southern part of the Upper Rhine Graben. The stratigraphically oldest deposits exposed, a braided-river facies, yielded OSL age estimates ranging from 59.6 ± 6.2 to 33.1 ± 3.0 ka. The data set does not enable to distinguish between a linear age increase triggered by a continuous autocyclical aggradation or two (or more) age clusters, for example around 35 ka and around 55 ka, triggered by climate change, including stadial and interstadial periods (sensu Dansgaard–Oeschger cycles). The braided river facies is discontinuously (hiatus) covered by coarse-grained gravel-rich sediments deposited most likely during a single event or short-time period of major melt water discharge postdating the Last Glacial Maximum. OSL age estimates of fluvial and aeolian sediments from the above coarse-grained sediment layer are between 16.4 ± 0.8 and 10.6 ± 0.5 ka, and make a correlation with the Late Glacial period very likely. The youngest fluvial aggradation period correlates to the beginning of the Little Ice Age, as confirmed by OSL and radiocarbon ages.

Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Angewandte Sedimentgeologie
Hinterlegungsdatum: 17 Jun 2015 06:48
Letzte Änderung: 17 Jun 2015 06:48
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