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Application of digital elevation and geological data in studies of morphotectonics and relief - a case study of the sub-Cambrian peneplain in SW Sweden
Karlstad University, Faculty of Social and Life Sciences, Centre for Climate and Safety.
1999 (English)In: Zeitschrift für Geomorphologie, Vol. 43, p. 505-520Article in journal (Refereed)
Abstract [en]

A 357 km2 wide area in south-western Sweden is examined regarding Tertiary morphotectonics and characteristic relief of the sub-Cambrian peneplain. The relief of the sub-Cambrian peneplain is studied in a geographical information system (GIS) and geostatistical modelling is applied to digital elevation and geological data. Linear trend surface analysis is used for the purpose of describing the morphotectonics of fragmented parts of the sub-Cambrian peneplain. The trend surface analysis requires digital information of outcrops, bedrock type, tectonic pattern and elevation data and it is described in the report how this information can be produced digitally. The analysis reveals that the sub-Cambrian peneplain is separated into fault bounded blocks, which are arranged in a stepwise manner with blocks leaning towards NNW, with an inclination in the range of 0.2-0.4 %.



Spatial interpolation techniques, distance-weighted moving averages and triangulation, are used on regolith thickness data from wells, to describe the relief of the Precambrian bedrock surface below the Quaternary loose deposits in the immediate contact with Cambro-Silurian cover rocks. The resulting patterns from the interpolations of the Quaternary regolith thickness unveil a varied relief, different from the extremely flat Precambrian surface usually described near Cambro-Silurian cover rocks in southern Sweden.

Place, publisher, year, edition, pages
1999. Vol. 43, p. 505-520
Keywords [en]
Trend surface analysis, GIS, morphotectonic, sub-Cambrian peneplain
National Category
Physical Geography
Research subject
Physical Geography
Identifiers
URN: urn:nbn:se:kau:diva-16968OAI: oai:DiVA.org:kau-16968DiVA, id: diva2:590569
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2018-01-11

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Johansson, Magnus

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf