P-T-t modelling of Proterozoic terranes in Lithuania: geodynamic implications for accretion of southwestern Fennoscandia
The East European Craton (EEC) consists of Archaean nucleii and accreted Proterozoic terranes. Pressure-Temperature-time (P-T-t) paths for the West Lithuanian Granulite Domain (WLG), the East Lithuanian Domain (ELD) and the Mid-Lithuanian Suture Zone (MLSZ) in the southwestern part of the EEC constr...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2003
|
Subjects: | |
Online Access: | http://lmavb.lvb.lt/LMAVB:ELABAPDB5338185&prefLang=en_US |
id |
ftlitinstagrecon:oai:elaba:5338185 |
---|---|
record_format |
openpolar |
spelling |
ftlitinstagrecon:oai:elaba:5338185 2023-05-15T16:11:54+02:00 P-T-t modelling of Proterozoic terranes in Lithuania: geodynamic implications for accretion of southwestern Fennoscandia Skridlaitė, Gražina Willingshofer, Ernst Stephenson, Randell 2003 http://lmavb.lvb.lt/LMAVB:ELABAPDB5338185&prefLang=en_US eng eng http://lmavb.lvb.lt/LMAVB:ELABAPDB5338185&prefLang=en_US GFF, 2003, Vol. 125, p. 201-211 ISSN 1103-5897 Palaeoproterozoic accretion Svecofennian orogen Lithosphere Extension Evolution Flow Eurobridge Collapse Granite info:eu-repo/semantics/article 2003 ftlitinstagrecon 2021-12-02T00:31:18Z The East European Craton (EEC) consists of Archaean nucleii and accreted Proterozoic terranes. Pressure-Temperature-time (P-T-t) paths for the West Lithuanian Granulite Domain (WLG), the East Lithuanian Domain (ELD) and the Mid-Lithuanian Suture Zone (MLSZ) in the southwestern part of the EEC constrain the sequence of tectonic events and their deformational and metamorphic conditions. A kinematic and thermal model has been developed for the evolution of these terranes, given the accretion of the ELD to the Sarmatian and the WLG to the Fennoscandian continents, respectively, based on their structural and compositional differences. For initial surface heat flow values ranging from 80-90 mWm(-2), the numerical model predicts a thermal relaxation phase of at least 30-50 m.y., following very slow accretion (0.54 cm/yr) of the WLG in a subduction-type environment, prior to granulite facies metamorphism at 1.80 Ga. Article in Journal/Newspaper Fennoscandia Fennoscandian LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) |
institution |
Open Polar |
collection |
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) |
op_collection_id |
ftlitinstagrecon |
language |
English |
topic |
Palaeoproterozoic accretion Svecofennian orogen Lithosphere Extension Evolution Flow Eurobridge Collapse Granite |
spellingShingle |
Palaeoproterozoic accretion Svecofennian orogen Lithosphere Extension Evolution Flow Eurobridge Collapse Granite Skridlaitė, Gražina Willingshofer, Ernst Stephenson, Randell P-T-t modelling of Proterozoic terranes in Lithuania: geodynamic implications for accretion of southwestern Fennoscandia |
topic_facet |
Palaeoproterozoic accretion Svecofennian orogen Lithosphere Extension Evolution Flow Eurobridge Collapse Granite |
description |
The East European Craton (EEC) consists of Archaean nucleii and accreted Proterozoic terranes. Pressure-Temperature-time (P-T-t) paths for the West Lithuanian Granulite Domain (WLG), the East Lithuanian Domain (ELD) and the Mid-Lithuanian Suture Zone (MLSZ) in the southwestern part of the EEC constrain the sequence of tectonic events and their deformational and metamorphic conditions. A kinematic and thermal model has been developed for the evolution of these terranes, given the accretion of the ELD to the Sarmatian and the WLG to the Fennoscandian continents, respectively, based on their structural and compositional differences. For initial surface heat flow values ranging from 80-90 mWm(-2), the numerical model predicts a thermal relaxation phase of at least 30-50 m.y., following very slow accretion (0.54 cm/yr) of the WLG in a subduction-type environment, prior to granulite facies metamorphism at 1.80 Ga. |
format |
Article in Journal/Newspaper |
author |
Skridlaitė, Gražina Willingshofer, Ernst Stephenson, Randell |
author_facet |
Skridlaitė, Gražina Willingshofer, Ernst Stephenson, Randell |
author_sort |
Skridlaitė, Gražina |
title |
P-T-t modelling of Proterozoic terranes in Lithuania: geodynamic implications for accretion of southwestern Fennoscandia |
title_short |
P-T-t modelling of Proterozoic terranes in Lithuania: geodynamic implications for accretion of southwestern Fennoscandia |
title_full |
P-T-t modelling of Proterozoic terranes in Lithuania: geodynamic implications for accretion of southwestern Fennoscandia |
title_fullStr |
P-T-t modelling of Proterozoic terranes in Lithuania: geodynamic implications for accretion of southwestern Fennoscandia |
title_full_unstemmed |
P-T-t modelling of Proterozoic terranes in Lithuania: geodynamic implications for accretion of southwestern Fennoscandia |
title_sort |
p-t-t modelling of proterozoic terranes in lithuania: geodynamic implications for accretion of southwestern fennoscandia |
publishDate |
2003 |
url |
http://lmavb.lvb.lt/LMAVB:ELABAPDB5338185&prefLang=en_US |
genre |
Fennoscandia Fennoscandian |
genre_facet |
Fennoscandia Fennoscandian |
op_source |
GFF, 2003, Vol. 125, p. 201-211 ISSN 1103-5897 |
op_relation |
http://lmavb.lvb.lt/LMAVB:ELABAPDB5338185&prefLang=en_US |
_version_ |
1765997113739575296 |