Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania
The Precambrian basement of Lithuania and NE Poland, much of which is metasedimentary paragneiss, can be accessed only by cores from deep borcholes. 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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ftlithuaniansrc:oai:elaba:6223695 2023-05-15T16:11:40+02:00 Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania Krzemińska, Ewa Wiszniewska, Janina Skridlaitė, Gražina Williams, Ian S. 2009 http://lmavb.lvb.lt/LMAVB:ELABAPDB6223695&prefLang=en_US eng eng http://lmavb.lvb.lt/LMAVB:ELABAPDB6223695&prefLang=en_US Geological quarterly, 2009, Vol. 53, iss. 3, p. 255-272 ISSN 1641-7291 Fennoscandia Sarmatia Greenland Svecofennian basin Detrital zircon Geochronology info:eu-repo/semantics/article 2009 ftlithuaniansrc 2021-12-02T00:49:12Z The Precambrian basement of Lithuania and NE Poland, much of which is metasedimentary paragneiss, can be accessed only by cores from deep borcholes. 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 Jastrzebna and Monki 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 LSRC VL (Lithuanian Social Research Centre Virtual Library) Greenland |
institution |
Open Polar |
collection |
LSRC VL (Lithuanian Social Research Centre Virtual Library) |
op_collection_id |
ftlithuaniansrc |
language |
English |
topic |
Fennoscandia Sarmatia Greenland Svecofennian basin Detrital zircon Geochronology |
spellingShingle |
Fennoscandia Sarmatia Greenland Svecofennian basin Detrital zircon Geochronology Krzemińska, Ewa Wiszniewska, Janina Skridlaitė, Gražina Williams, Ian S. Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania |
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 borcholes. 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 Jastrzebna and Monki 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 |
Krzemińska, Ewa Wiszniewska, Janina Skridlaitė, Gražina Williams, Ian S. |
author_facet |
Krzemińska, Ewa Wiszniewska, Janina Skridlaitė, Gražina Williams, Ian S. |
author_sort |
Krzemińska, Ewa |
title |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania |
title_short |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania |
title_full |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania |
title_fullStr |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania |
title_full_unstemmed |
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania |
title_sort |
late svecofennian sedimentary basins in the crystalline basement of ne poland and adjacent area of lithuania |
publishDate |
2009 |
url |
http://lmavb.lvb.lt/LMAVB:ELABAPDB6223695&prefLang=en_US |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Fennoscandia Greenland |
genre_facet |
Fennoscandia Greenland |
op_source |
Geological quarterly, 2009, Vol. 53, iss. 3, p. 255-272 ISSN 1641-7291 |
op_relation |
http://lmavb.lvb.lt/LMAVB:ELABAPDB6223695&prefLang=en_US |
_version_ |
1765996827177385984 |