GIS-based 3D sedimentary model for visualizing complex glacial deposition in Kersilö, Finnish Lapland
Complicated Quaternary sediment strata have been preserved within the ice-divide zone of northern Finland because of weak glacial erosion. Geographic Information System (GIS) databases, 3D modelling and ground penetrating radar surveys were used to construct the 3D structure of unconsolidated sedime...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/578365 2024-09-15T18:00:08+00:00 GIS-based 3D sedimentary model for visualizing complex glacial deposition in Kersilö, Finnish Lapland Åberg, A.K. Salonen, V.-P. Korkka-Niemi, K. Rautio, A. Koivisto, E. Åberg, S.C. 2024-06-27T13:45:03Z 277-298 application/pdf http://hdl.handle.net/10138/578365 eng eng Boreal Environment Research Publishing Board Boreal Environment Research 1239-6095 1797-2469 22 http://hdl.handle.net/10138/578365 Suomen ympäristökeskus CC BY 4.0 openAccess Artikkeli lehdessä 2024 ftunivhelsihelda 2024-08-21T23:48:04Z Complicated Quaternary sediment strata have been preserved within the ice-divide zone of northern Finland because of weak glacial erosion. Geographic Information System (GIS) databases, 3D modelling and ground penetrating radar surveys were used to construct the 3D structure of unconsolidated sediments and bedrock topography for Kersilö, Sodankylä, to provide information for freshwater management and environmental studies in the mineral exploration area. The model was created using a combination of explicit and implicit modelling covering an area of 10.5 km2. The surficial deposits in the study area are a few metres thicker than their average thickness in northern Finland. They include three till units and four sandy or gravelly units. Fluvial action has repeatedly deposited sorted sediments in the channel valley of the Kitinen river. Basins in the bedrock have preserved thick sediment packages (> 15 m), indicating that the bedrock topography controls the sedimentary features. Aquifers in the area are small and disconnected, and perched aquifers exist due to the low hydraulic conductivity of interlayered tills. Article in Journal/Newspaper Boreal Environment Research Northern Finland Sodankylä Lapland HELDA – University of Helsinki Open Repository |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
description |
Complicated Quaternary sediment strata have been preserved within the ice-divide zone of northern Finland because of weak glacial erosion. Geographic Information System (GIS) databases, 3D modelling and ground penetrating radar surveys were used to construct the 3D structure of unconsolidated sediments and bedrock topography for Kersilö, Sodankylä, to provide information for freshwater management and environmental studies in the mineral exploration area. The model was created using a combination of explicit and implicit modelling covering an area of 10.5 km2. The surficial deposits in the study area are a few metres thicker than their average thickness in northern Finland. They include three till units and four sandy or gravelly units. Fluvial action has repeatedly deposited sorted sediments in the channel valley of the Kitinen river. Basins in the bedrock have preserved thick sediment packages (> 15 m), indicating that the bedrock topography controls the sedimentary features. Aquifers in the area are small and disconnected, and perched aquifers exist due to the low hydraulic conductivity of interlayered tills. |
format |
Article in Journal/Newspaper |
author |
Åberg, A.K. Salonen, V.-P. Korkka-Niemi, K. Rautio, A. Koivisto, E. Åberg, S.C. |
spellingShingle |
Åberg, A.K. Salonen, V.-P. Korkka-Niemi, K. Rautio, A. Koivisto, E. Åberg, S.C. GIS-based 3D sedimentary model for visualizing complex glacial deposition in Kersilö, Finnish Lapland |
author_facet |
Åberg, A.K. Salonen, V.-P. Korkka-Niemi, K. Rautio, A. Koivisto, E. Åberg, S.C. |
author_sort |
Åberg, A.K. |
title |
GIS-based 3D sedimentary model for visualizing complex glacial deposition in Kersilö, Finnish Lapland |
title_short |
GIS-based 3D sedimentary model for visualizing complex glacial deposition in Kersilö, Finnish Lapland |
title_full |
GIS-based 3D sedimentary model for visualizing complex glacial deposition in Kersilö, Finnish Lapland |
title_fullStr |
GIS-based 3D sedimentary model for visualizing complex glacial deposition in Kersilö, Finnish Lapland |
title_full_unstemmed |
GIS-based 3D sedimentary model for visualizing complex glacial deposition in Kersilö, Finnish Lapland |
title_sort |
gis-based 3d sedimentary model for visualizing complex glacial deposition in kersilö, finnish lapland |
publisher |
Boreal Environment Research Publishing Board |
publishDate |
2024 |
url |
http://hdl.handle.net/10138/578365 |
genre |
Boreal Environment Research Northern Finland Sodankylä Lapland |
genre_facet |
Boreal Environment Research Northern Finland Sodankylä Lapland |
op_relation |
Boreal Environment Research 1239-6095 1797-2469 22 http://hdl.handle.net/10138/578365 Suomen ympäristökeskus |
op_rights |
CC BY 4.0 openAccess |
_version_ |
1810437242420723712 |