Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations
The Precambrian basement of Lithuania and NE Poland, much of which is metasedimentary paragneiss, can be accessed only by cores from deep boreholes. Ion microprobe dating of detrital zircons from samples of these metasediments and the geochemical signatures of the rocks provide new insights into the...
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Polish Geological Institute-National Research Institute
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ftjgq:oai:geojournals.pgi.gov.pl:article/7518 2024-09-15T18:05:52+00:00 Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations Krzemiska, Ewa Wiszniewska, Janina Skridlaite, Grazina Williams, Ian S. 2010-03-27 application/pdf https://gq.pgi.gov.pl/article/view/7518 eng eng Polish Geological Institute-National Research Institute https://gq.pgi.gov.pl/article/view/7518/6168 10.7306/gq.v53i3.7518.g6168 https://gq.pgi.gov.pl/article/view/7518 Geological Quarterly; Vol. 53 No. 3 (2009); 255-272 Geological Quarterly; Tom 53 Nr 3 (2009); 255-272 1641-7291 10.7306/gq.v53i3 Fennoscandia Sarmatia Greenland Svecofennian basin detrital zircon geochronology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2010 ftjgq https://doi.org/10.7306/gq.v53i3 2024-07-30T03:29:08Z The Precambrian basement of Lithuania and NE Poland, much of which is metasedimentary paragneiss, can be accessed only by cores from deep boreholes. Ion microprobe dating of detrital zircons from samples of these metasediments and the geochemical signatures of the rocks provide new insights into their age and provenance. Detrital zircons from metasediments from Jastrzbna and Moki have Pb isotopic ages in the ranges 3.14-1.83 and 3.53-1.82 Ga, respectively. Similar results have been obtained from the Lithuanian Lazdijai and Bliudziai paragneisses. About 30% of the analysed Polish detrital zircon cores are of Late Archaean age (2.90-2.60 Ga) and about 70% are Palaeoproterozoic (2.10-1.90 Ga), similar to the age distributions of detrital zircon from Svecofennian metasediments exposed in Central Sweden and Southern Finland. The youngest detrital zircon sub-groups indicate maximum deposition ages of about 1.86 Ga, similar to the ages of exposed Svecofennian sedimentary basins. Possible source rocks of comparable ages and affinities can be found within Fennoscandia, Greenland and Sarmatia. Article in Journal/Newspaper Fennoscandia Greenland Geological Quarterly |
institution |
Open Polar |
collection |
Geological Quarterly |
op_collection_id |
ftjgq |
language |
English |
topic |
Fennoscandia Sarmatia Greenland Svecofennian basin detrital zircon geochronology |
spellingShingle |
Fennoscandia Sarmatia Greenland Svecofennian basin detrital zircon geochronology Krzemiska, Ewa Wiszniewska, Janina Skridlaite, Grazina Williams, Ian S. Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations |
topic_facet |
Fennoscandia Sarmatia Greenland Svecofennian basin detrital zircon geochronology |
description |
The Precambrian basement of Lithuania and NE Poland, much of which is metasedimentary paragneiss, can be accessed only by cores from deep boreholes. Ion microprobe dating of detrital zircons from samples of these metasediments and the geochemical signatures of the rocks provide new insights into their age and provenance. Detrital zircons from metasediments from Jastrzbna and Moki have Pb isotopic ages in the ranges 3.14-1.83 and 3.53-1.82 Ga, respectively. Similar results have been obtained from the Lithuanian Lazdijai and Bliudziai paragneisses. About 30% of the analysed Polish detrital zircon cores are of Late Archaean age (2.90-2.60 Ga) and about 70% are Palaeoproterozoic (2.10-1.90 Ga), similar to the age distributions of detrital zircon from Svecofennian metasediments exposed in Central Sweden and Southern Finland. The youngest detrital zircon sub-groups indicate maximum deposition ages of about 1.86 Ga, similar to the ages of exposed Svecofennian sedimentary basins. Possible source rocks of comparable ages and affinities can be found within Fennoscandia, Greenland and Sarmatia. |
format |
Article in Journal/Newspaper |
author |
Krzemiska, Ewa Wiszniewska, Janina Skridlaite, Grazina Williams, Ian S. |
author_facet |
Krzemiska, Ewa Wiszniewska, Janina Skridlaite, Grazina Williams, Ian S. |
author_sort |
Krzemiska, Ewa |
title |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations |
title_short |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations |
title_full |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations |
title_fullStr |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations |
title_full_unstemmed |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations |
title_sort |
late svecofennian sedimentary basins in the crystalline basement of ne poland and adjacent area of lithuania: ages, major sources of detritus, and correlations |
publisher |
Polish Geological Institute-National Research Institute |
publishDate |
2010 |
url |
https://gq.pgi.gov.pl/article/view/7518 |
genre |
Fennoscandia Greenland |
genre_facet |
Fennoscandia Greenland |
op_source |
Geological Quarterly; Vol. 53 No. 3 (2009); 255-272 Geological Quarterly; Tom 53 Nr 3 (2009); 255-272 1641-7291 10.7306/gq.v53i3 |
op_relation |
https://gq.pgi.gov.pl/article/view/7518/6168 10.7306/gq.v53i3.7518.g6168 https://gq.pgi.gov.pl/article/view/7518 |
op_doi |
https://doi.org/10.7306/gq.v53i3 |
_version_ |
1810443367746633728 |