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The importance of thermal boundary transitions on glacial geomorphology; mapping of ribbed/hummocky moraine and streamlined terrain from LiDAR, over Småland, South Sweden

Möller, Per LU orcid and Dowling, Tom LU (2015) In GFF 137(4). p.252-283
Abstract
In this paper we synthesise previous sedimentological studies and new, high resolution, digital elevation models from southern Småland to investigate the evolution of a deglacial landscape. Starting approximately at the deglacial highest shoreline, there is a 20-40 km wide zone of ribbed and hummocky moraine that can be connected to the predominantly subaqueous Göteborg moraine. North of this there is a dramatic shift into streamlined terrain. Based on sedimentological investigations we conclude that these zones represent a sub/supraglacial stagnant-ice landsystem, followed by a subglacial active ice landsystem, which during their formations had very different thermal and process regimes along the ice-bed interface (freezing on/frozen... (More)
In this paper we synthesise previous sedimentological studies and new, high resolution, digital elevation models from southern Småland to investigate the evolution of a deglacial landscape. Starting approximately at the deglacial highest shoreline, there is a 20-40 km wide zone of ribbed and hummocky moraine that can be connected to the predominantly subaqueous Göteborg moraine. North of this there is a dramatic shift into streamlined terrain. Based on sedimentological investigations we conclude that these zones represent a sub/supraglacial stagnant-ice landsystem, followed by a subglacial active ice landsystem, which during their formations had very different thermal and process regimes along the ice-bed interface (freezing on/frozen versus wet-based basal regimes). New observations derived from high resolution, LiDAR digital elevation models reveals patterns of erosional/depositional and morphostratigraphic relationships that have not previously been observed, opening up gateways for future research. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
GFF
volume
137
issue
4
pages
252 - 283
publisher
Taylor & Francis
external identifiers
  • wos:000367018000002
  • scopus:84961286666
ISSN
2000-0863
DOI
10.1080/11035897.2015.1051736
project
Sub-till sediments on the Småland peneplain - their age and implication for glacial stratigraphy and glacial dynamics in South Sweden
Drumlin formation in south Sweden
language
English
LU publication?
yes
id
5aef1e7f-14de-41c9-a6fb-e8f3db1b6874 (old id 5365808)
date added to LUP
2016-04-01 09:57:07
date last changed
2022-04-27 17:06:45
@article{5aef1e7f-14de-41c9-a6fb-e8f3db1b6874,
  abstract     = {{In this paper we synthesise previous sedimentological studies and new, high resolution, digital elevation models from southern Småland to investigate the evolution of a deglacial landscape. Starting approximately at the deglacial highest shoreline, there is a 20-40 km wide zone of ribbed and hummocky moraine that can be connected to the predominantly subaqueous Göteborg moraine. North of this there is a dramatic shift into streamlined terrain. Based on sedimentological investigations we conclude that these zones represent a sub/supraglacial stagnant-ice landsystem, followed by a subglacial active ice landsystem, which during their formations had very different thermal and process regimes along the ice-bed interface (freezing on/frozen versus wet-based basal regimes). New observations derived from high resolution, LiDAR digital elevation models reveals patterns of erosional/depositional and morphostratigraphic relationships that have not previously been observed, opening up gateways for future research.}},
  author       = {{Möller, Per and Dowling, Tom}},
  issn         = {{2000-0863}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{252--283}},
  publisher    = {{Taylor & Francis}},
  series       = {{GFF}},
  title        = {{The importance of thermal boundary transitions on glacial geomorphology; mapping of ribbed/hummocky moraine and streamlined terrain from LiDAR, over Småland, South Sweden}},
  url          = {{http://dx.doi.org/10.1080/11035897.2015.1051736}},
  doi          = {{10.1080/11035897.2015.1051736}},
  volume       = {{137}},
  year         = {{2015}},
}