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Rogen moraine: an example of glacial reshaping of pre-existing landforms

Möller, Per LU orcid (2006) In Quaternary Science Reviews 25(3-4). p.362-389
Abstract
Rogen moraine is widely distributed in the core areas of the former Scandinavian and Laurentide ice sheets. It is generally agreed upon that these gently arched, ice-How transverse ridges call be used in reconstructions of paleo-ice-flow patterns and that they indicate a melted-bed or poly-thermal basal ice regime. However, the processes of ridge generation have been contentious. This study proposes a two-stage formation of Rogen moraine, based oil detailed sedimentological and structural investigations in excavated trenches in a Ropen moraine landscape in the province of Dalama, central Sweden. Field data suggest that Rogen moraine ridges are the reshaped remains of pre-existing transverse moraine ridges, originally deposited from... (More)
Rogen moraine is widely distributed in the core areas of the former Scandinavian and Laurentide ice sheets. It is generally agreed upon that these gently arched, ice-How transverse ridges call be used in reconstructions of paleo-ice-flow patterns and that they indicate a melted-bed or poly-thermal basal ice regime. However, the processes of ridge generation have been contentious. This study proposes a two-stage formation of Rogen moraine, based oil detailed sedimentological and structural investigations in excavated trenches in a Ropen moraine landscape in the province of Dalama, central Sweden. Field data suggest that Rogen moraine ridges are the reshaped remains of pre-existing transverse moraine ridges, originally deposited from ice-cored moraines ill an ice-marginal zone. Due to back- and down-wasting of ice-cores, inter-ridge troughs were filled with debris flow and fluvial deposits, which after landscape inversion were transformed to areas of transverse and hummocky moraines. It is proposed that this primary landscape formation Occurred during an Early Weichselian deglaciation. This relict landscape was later preserved beneath cold-based Mid- to Late-Weichselian ice sheet(s), which turned wet-based during the Preboreal deglaciation phase and re-moulded the precursor landforms into Rogen moraine. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Quaternary Science Reviews
volume
25
issue
3-4
pages
362 - 389
publisher
Elsevier
external identifiers
  • wos:000235718200012
  • scopus:31944433978
ISSN
0277-3791
DOI
10.1016/j.quascirev.2005.01.011
language
English
LU publication?
yes
id
f3d4380f-1c4f-45df-8f17-39abcc124db0 (old id 416644)
date added to LUP
2016-04-01 11:49:12
date last changed
2020-12-08 02:16:06
@article{f3d4380f-1c4f-45df-8f17-39abcc124db0,
  abstract     = {Rogen moraine is widely distributed in the core areas of the former Scandinavian and Laurentide ice sheets. It is generally agreed upon that these gently arched, ice-How transverse ridges call be used in reconstructions of paleo-ice-flow patterns and that they indicate a melted-bed or poly-thermal basal ice regime. However, the processes of ridge generation have been contentious. This study proposes a two-stage formation of Rogen moraine, based oil detailed sedimentological and structural investigations in excavated trenches in a Ropen moraine landscape in the province of Dalama, central Sweden. Field data suggest that Rogen moraine ridges are the reshaped remains of pre-existing transverse moraine ridges, originally deposited from ice-cored moraines ill an ice-marginal zone. Due to back- and down-wasting of ice-cores, inter-ridge troughs were filled with debris flow and fluvial deposits, which after landscape inversion were transformed to areas of transverse and hummocky moraines. It is proposed that this primary landscape formation Occurred during an Early Weichselian deglaciation. This relict landscape was later preserved beneath cold-based Mid- to Late-Weichselian ice sheet(s), which turned wet-based during the Preboreal deglaciation phase and re-moulded the precursor landforms into Rogen moraine.},
  author       = {Möller, Per},
  issn         = {0277-3791},
  language     = {eng},
  number       = {3-4},
  pages        = {362--389},
  publisher    = {Elsevier},
  series       = {Quaternary Science Reviews},
  title        = {Rogen moraine: an example of glacial reshaping of pre-existing landforms},
  url          = {http://dx.doi.org/10.1016/j.quascirev.2005.01.011},
  doi          = {10.1016/j.quascirev.2005.01.011},
  volume       = {25},
  year         = {2006},
}