Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland
The aim of this studv is to investigate interrelationships betweenbedrock relief and geological material. The area of investigation covers ca 350 km and is located in the Precambrian bedrock in the central part of Umeå commune, in northern Norrland. The boundary between two morphologically different...
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Samhällsvetenskapliga fakulteten
1982
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ftumeauniv:oai:DiVA.org:umu-73706 2023-10-09T21:51:24+02:00 Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland Miškovský, Karel 1982 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-73706 swe swe Samhällsvetenskapliga fakulteten Umeå : Umeå universitet Gerum A, 0348-0887 32 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-73706 info:eu-repo/semantics/openAccess Precambrian bedrock Fennoscandia morphology Umeå weathering processes Geology Geologi Doctoral thesis, monograph info:eu-repo/semantics/doctoralThesis text 1982 ftumeauniv 2023-09-22T13:48:18Z The aim of this studv is to investigate interrelationships betweenbedrock relief and geological material. The area of investigation covers ca 350 km and is located in the Precambrian bedrock in the central part of Umeå commune, in northern Norrland. The boundary between two morphologically different types of landscape, the coastal plain (kustslätten) and the Norrland terrain (Norrlandsterrängen), crosses this area in a north-westerly direction.The study area's Precambrian bedrock has been mapped in detail by the author and the results are presented in a map at the scale of 1:50,000 together with a description. The occurring rock types have been studied with regard to their resistance against physical and chemical weathering. By relating recent research experience concerning Fennoscandia's palaeogeography, palaeoclimatology and isostasy, an appreciation is given of the character and strength of the forces of disintegration. Accordingly, it seems probable that chemical weathering was the dominant phenomenon during Silurian, Devonian, and even Carboniferous and Permian, whereas when the climate worsened significantly after the Tertiary period Fennoscandia's landscape was resculptured by glacial forces.During Tertiary and Quarternary times, Pennoscandia was twice uplifted and once loweredStatistical correlations between landscape relief, bedrock structure and rock variations, show that the highest sections of the landscape are dominated by resistant older granitoids, granitic mobilizate and veined gneisses, whereas the low-lying valleys and plains are characterized by the easily weathered biotite-plagioclase schists. Much suggests that the distinctive morphology of the coastal plain and Norrland terrain was initiated by bedrock structure and rock variations. As in some earlier works on Fennoscandia, this study attributes great importance to selective weathering in shaping the landscape. digitalisering@umu Doctoral or Postdoctoral Thesis Fennoscandia Umeå University: Publications (DiVA) |
institution |
Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
Swedish |
topic |
Precambrian bedrock Fennoscandia morphology Umeå weathering processes Geology Geologi |
spellingShingle |
Precambrian bedrock Fennoscandia morphology Umeå weathering processes Geology Geologi Miškovský, Karel Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland |
topic_facet |
Precambrian bedrock Fennoscandia morphology Umeå weathering processes Geology Geologi |
description |
The aim of this studv is to investigate interrelationships betweenbedrock relief and geological material. The area of investigation covers ca 350 km and is located in the Precambrian bedrock in the central part of Umeå commune, in northern Norrland. The boundary between two morphologically different types of landscape, the coastal plain (kustslätten) and the Norrland terrain (Norrlandsterrängen), crosses this area in a north-westerly direction.The study area's Precambrian bedrock has been mapped in detail by the author and the results are presented in a map at the scale of 1:50,000 together with a description. The occurring rock types have been studied with regard to their resistance against physical and chemical weathering. By relating recent research experience concerning Fennoscandia's palaeogeography, palaeoclimatology and isostasy, an appreciation is given of the character and strength of the forces of disintegration. Accordingly, it seems probable that chemical weathering was the dominant phenomenon during Silurian, Devonian, and even Carboniferous and Permian, whereas when the climate worsened significantly after the Tertiary period Fennoscandia's landscape was resculptured by glacial forces.During Tertiary and Quarternary times, Pennoscandia was twice uplifted and once loweredStatistical correlations between landscape relief, bedrock structure and rock variations, show that the highest sections of the landscape are dominated by resistant older granitoids, granitic mobilizate and veined gneisses, whereas the low-lying valleys and plains are characterized by the easily weathered biotite-plagioclase schists. Much suggests that the distinctive morphology of the coastal plain and Norrland terrain was initiated by bedrock structure and rock variations. As in some earlier works on Fennoscandia, this study attributes great importance to selective weathering in shaping the landscape. digitalisering@umu |
format |
Doctoral or Postdoctoral Thesis |
author |
Miškovský, Karel |
author_facet |
Miškovský, Karel |
author_sort |
Miškovský, Karel |
title |
Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland |
title_short |
Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland |
title_full |
Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland |
title_fullStr |
Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland |
title_full_unstemmed |
Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland |
title_sort |
berggrundsmorfologiska studier över kustslätten och norrlandsterrängen inom delar av umeå kommun, norra norrland |
publisher |
Samhällsvetenskapliga fakulteten |
publishDate |
1982 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-73706 |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_relation |
Gerum A, 0348-0887 32 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-73706 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1779314524750348288 |