Advanced

Evidence of a Late Precambrian (637 Ma) deformational event in the Caledonides of northern Sweden

Rehnström, Emma LU ; Corfu, F and Torsvik, Trond H LU (2002) In Journal of Geology 110(5). p.591-601
Abstract
The Caledonian nappes in Scandinavia record two main phases of early Paleozoic metamorphism, but their pre-Caledonian tectonothermal history and paleogeographic position are largely unknown. Here we present a U-Pb age of 637+/-3 Ma for metamorphic titanite in the 1776+/-4 Ma (zircon age) Skarja granitic gneiss in northern Sweden. The titanite age is interpreted to represent a Neoproterozoic tectonometamorphic overprint. Geochronologic and paleogeographic considerations suggest that the gneiss was located at the outermost margin of pre-Caledonian (northwest) Baltica and was affected by Neoproterozoic tectonic activity related to terrane accretion, the Baikalian (or Timanian) orogeny, coincident with Cadomian terrane accretion along the... (More)
The Caledonian nappes in Scandinavia record two main phases of early Paleozoic metamorphism, but their pre-Caledonian tectonothermal history and paleogeographic position are largely unknown. Here we present a U-Pb age of 637+/-3 Ma for metamorphic titanite in the 1776+/-4 Ma (zircon age) Skarja granitic gneiss in northern Sweden. The titanite age is interpreted to represent a Neoproterozoic tectonometamorphic overprint. Geochronologic and paleogeographic considerations suggest that the gneiss was located at the outermost margin of pre-Caledonian (northwest) Baltica and was affected by Neoproterozoic tectonic activity related to terrane accretion, the Baikalian (or Timanian) orogeny, coincident with Cadomian terrane accretion along the Gondwanan margin of northern South America and northwest Africa. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Geology
volume
110
issue
5
pages
591 - 601
publisher
University of Chicago Press
external identifiers
  • wos:000177325300006
  • scopus:0036737986
ISSN
0022-1376
language
English
LU publication?
yes
id
1bee6c58-a613-4280-b4c2-5b9ffc06167f (old id 331654)
alternative location
http://www.journals.uchicago.edu/JG/journal/issues/v110n5/020501/brief/020501.abstract.html
date added to LUP
2007-11-12 09:54:57
date last changed
2017-01-01 07:26:53
@article{1bee6c58-a613-4280-b4c2-5b9ffc06167f,
  abstract     = {The Caledonian nappes in Scandinavia record two main phases of early Paleozoic metamorphism, but their pre-Caledonian tectonothermal history and paleogeographic position are largely unknown. Here we present a U-Pb age of 637+/-3 Ma for metamorphic titanite in the 1776+/-4 Ma (zircon age) Skarja granitic gneiss in northern Sweden. The titanite age is interpreted to represent a Neoproterozoic tectonometamorphic overprint. Geochronologic and paleogeographic considerations suggest that the gneiss was located at the outermost margin of pre-Caledonian (northwest) Baltica and was affected by Neoproterozoic tectonic activity related to terrane accretion, the Baikalian (or Timanian) orogeny, coincident with Cadomian terrane accretion along the Gondwanan margin of northern South America and northwest Africa.},
  author       = {Rehnström, Emma and Corfu, F and Torsvik, Trond H},
  issn         = {0022-1376},
  language     = {eng},
  number       = {5},
  pages        = {591--601},
  publisher    = {University of Chicago Press},
  series       = {Journal of Geology},
  title        = {Evidence of a Late Precambrian (637 Ma) deformational event in the Caledonides of northern Sweden},
  volume       = {110},
  year         = {2002},
}