Timing of Palaeoproterozoic intra-orogenic sedimentation in the central Fennoscandian Shield; evidence from detrital zircon in metasandstone
Detrital zircon U-Pb SIMS data on quartz-rich metasandstone units presumed to belong to the upper part of the Svecofennian stratigraphy in southeastern Finland and east-central Sweden suggest the existence of clastic sedimentary basins between the two main orogenic phases at 1.89-1.86 Ga and 1.83-1....
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Online Access: | https://lup.lub.lu.se/record/1183191 https://doi.org/10.1016/j.precamres.2007.08.007 |
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ftulundlup:oai:lup.lub.lu.se:3a4b832b-53f1-4f7e-a2f6-7cdfd106d6ab 2023-05-15T16:12:52+02:00 Timing of Palaeoproterozoic intra-orogenic sedimentation in the central Fennoscandian Shield; evidence from detrital zircon in metasandstone Bergman, S Högdahl, Karin Nironen, M Ogenhall, E Sjostrom, H Lundqvist, L Lahtinen, R 2008 https://lup.lub.lu.se/record/1183191 https://doi.org/10.1016/j.precamres.2007.08.007 eng eng Elsevier https://lup.lub.lu.se/record/1183191 http://dx.doi.org/10.1016/j.precamres.2007.08.007 wos:000254147700002 scopus:38949143334 Precambrian Research; 161(3-4), pp 231-249 (2008) ISSN: 0301-9268 Geology provenance U-Pb SIMS detrital zircon fennoscandian shield palaeoproterozoic contributiontojournal/article info:eu-repo/semantics/article text 2008 ftulundlup https://doi.org/10.1016/j.precamres.2007.08.007 2023-02-01T23:28:46Z Detrital zircon U-Pb SIMS data on quartz-rich metasandstone units presumed to belong to the upper part of the Svecofennian stratigraphy in southeastern Finland and east-central Sweden suggest the existence of clastic sedimentary basins between the two main orogenic phases at 1.89-1.86 Ga and 1.83-1.79 Ga, during a period referred to as the intra-orogenic phase (1.86-1.83 Ga). Stratigraphically below the metasandstone at Hamrange, east-central Sweden, is a metadacite with an U-Pb zircon TIMS age of 1888 +/- 6 Ma, which indicates the maximum age of sedimentation. It also indicates that an earlier proposed correlation of Hamrange metavolcanic rocks and 1.86Ga equivalents at Los to the northwest must be rejected. Instead, there is a temporal affinity to the metavolcanic rocks in the Bergslagen Province to the south or Southern Finland to the east. Quartz-rich metasandstone samples from four localities, Luukkola, Pyhantaka and Tiirismaa in Finland and Hamrange in Sweden, yield multimodal detrital zircon age distributions with main populations at 2.95-2.60 Ga, 2.10-1.95 Ga and 1.92-1.85 Ga. The groups are similar in all four samples, and they are comparable to previously reported detrital ages in this part of the Fennoscandian Shield. The oldest zircon analysed gave an age of 3.32 Ga (Tiirismaa). The maximum ages of sedimentation (and of subsequent deformation and metamorphism), indicated by the youngest detrital zircon, from the four localities are 1842 10 Ma (Luukkola), 1865 +/- 11 Ma (Pyhantaka), 1848 +/- 13 Ma (Tiirismaa), and 1855 10 Ma (Hamrange), respectively. Possible source rocks for these zircon grains are found within and around the vast Ljusdal Batholith in Sweden, and in the Arc Complexes of Western and Southern Finland. It is concluded that several intra-orogenic sedimentary basins existed during the time interval 1.86-1.83 Ga ago, between two major orogenic events in the Fermoscandian Shield. Article in Journal/Newspaper Fennoscandian Lund University Publications (LUP) Precambrian Research 161 3-4 231 249 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology provenance U-Pb SIMS detrital zircon fennoscandian shield palaeoproterozoic |
spellingShingle |
Geology provenance U-Pb SIMS detrital zircon fennoscandian shield palaeoproterozoic Bergman, S Högdahl, Karin Nironen, M Ogenhall, E Sjostrom, H Lundqvist, L Lahtinen, R Timing of Palaeoproterozoic intra-orogenic sedimentation in the central Fennoscandian Shield; evidence from detrital zircon in metasandstone |
topic_facet |
Geology provenance U-Pb SIMS detrital zircon fennoscandian shield palaeoproterozoic |
description |
Detrital zircon U-Pb SIMS data on quartz-rich metasandstone units presumed to belong to the upper part of the Svecofennian stratigraphy in southeastern Finland and east-central Sweden suggest the existence of clastic sedimentary basins between the two main orogenic phases at 1.89-1.86 Ga and 1.83-1.79 Ga, during a period referred to as the intra-orogenic phase (1.86-1.83 Ga). Stratigraphically below the metasandstone at Hamrange, east-central Sweden, is a metadacite with an U-Pb zircon TIMS age of 1888 +/- 6 Ma, which indicates the maximum age of sedimentation. It also indicates that an earlier proposed correlation of Hamrange metavolcanic rocks and 1.86Ga equivalents at Los to the northwest must be rejected. Instead, there is a temporal affinity to the metavolcanic rocks in the Bergslagen Province to the south or Southern Finland to the east. Quartz-rich metasandstone samples from four localities, Luukkola, Pyhantaka and Tiirismaa in Finland and Hamrange in Sweden, yield multimodal detrital zircon age distributions with main populations at 2.95-2.60 Ga, 2.10-1.95 Ga and 1.92-1.85 Ga. The groups are similar in all four samples, and they are comparable to previously reported detrital ages in this part of the Fennoscandian Shield. The oldest zircon analysed gave an age of 3.32 Ga (Tiirismaa). The maximum ages of sedimentation (and of subsequent deformation and metamorphism), indicated by the youngest detrital zircon, from the four localities are 1842 10 Ma (Luukkola), 1865 +/- 11 Ma (Pyhantaka), 1848 +/- 13 Ma (Tiirismaa), and 1855 10 Ma (Hamrange), respectively. Possible source rocks for these zircon grains are found within and around the vast Ljusdal Batholith in Sweden, and in the Arc Complexes of Western and Southern Finland. It is concluded that several intra-orogenic sedimentary basins existed during the time interval 1.86-1.83 Ga ago, between two major orogenic events in the Fermoscandian Shield. |
format |
Article in Journal/Newspaper |
author |
Bergman, S Högdahl, Karin Nironen, M Ogenhall, E Sjostrom, H Lundqvist, L Lahtinen, R |
author_facet |
Bergman, S Högdahl, Karin Nironen, M Ogenhall, E Sjostrom, H Lundqvist, L Lahtinen, R |
author_sort |
Bergman, S |
title |
Timing of Palaeoproterozoic intra-orogenic sedimentation in the central Fennoscandian Shield; evidence from detrital zircon in metasandstone |
title_short |
Timing of Palaeoproterozoic intra-orogenic sedimentation in the central Fennoscandian Shield; evidence from detrital zircon in metasandstone |
title_full |
Timing of Palaeoproterozoic intra-orogenic sedimentation in the central Fennoscandian Shield; evidence from detrital zircon in metasandstone |
title_fullStr |
Timing of Palaeoproterozoic intra-orogenic sedimentation in the central Fennoscandian Shield; evidence from detrital zircon in metasandstone |
title_full_unstemmed |
Timing of Palaeoproterozoic intra-orogenic sedimentation in the central Fennoscandian Shield; evidence from detrital zircon in metasandstone |
title_sort |
timing of palaeoproterozoic intra-orogenic sedimentation in the central fennoscandian shield; evidence from detrital zircon in metasandstone |
publisher |
Elsevier |
publishDate |
2008 |
url |
https://lup.lub.lu.se/record/1183191 https://doi.org/10.1016/j.precamres.2007.08.007 |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_source |
Precambrian Research; 161(3-4), pp 231-249 (2008) ISSN: 0301-9268 |
op_relation |
https://lup.lub.lu.se/record/1183191 http://dx.doi.org/10.1016/j.precamres.2007.08.007 wos:000254147700002 scopus:38949143334 |
op_doi |
https://doi.org/10.1016/j.precamres.2007.08.007 |
container_title |
Precambrian Research |
container_volume |
161 |
container_issue |
3-4 |
container_start_page |
231 |
op_container_end_page |
249 |
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1765998481409835008 |