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A new key pole for the East European Craton at 1452 Ma: Palaeomagnetic and geochronological constraints from mafic rocks in the Lake Ladoga region (Russian Karelia)

Lubnina, Natalia V.; Mertanen, Satu; Söderlund, Ulf LU ; Bogdanova, Svetlana LU ; Vasilieva, Tatiana I. and Frank-Kamenetsky, Dmitry (2010) In Precambrian Research 183(3). p.442-462
Abstract
Palaeomagnetic and geochronological studies on mafic rocks in the Lake Ladoga region in South Russian Karelia provide a new, reliably dated Mesoproterozoic key paleopole for the East European Craton (Baltica). U-Pb dating on baddeleyite gives a crystallisation age of 1452 +/- 12 Ma for one of the studied dolerite dykes. A mean palaeomagnetic pole for the Mesoproterozoic dolerite dykes. Valaam sill and Salmi basalts yields a paleopole at 15.2 degrees N, 177.1 degrees E, A(95) = 5.5 degrees. Positive baked contact test for the dolerite dykes and positive reversal test for the Salmi basalts and for the dykes confirm the primary nature of the magnetisation. Comparison of this Baltica palaeopole with coeval paleomagnetic data for Laurentia and... (More)
Palaeomagnetic and geochronological studies on mafic rocks in the Lake Ladoga region in South Russian Karelia provide a new, reliably dated Mesoproterozoic key paleopole for the East European Craton (Baltica). U-Pb dating on baddeleyite gives a crystallisation age of 1452 +/- 12 Ma for one of the studied dolerite dykes. A mean palaeomagnetic pole for the Mesoproterozoic dolerite dykes. Valaam sill and Salmi basalts yields a paleopole at 15.2 degrees N, 177.1 degrees E, A(95) = 5.5 degrees. Positive baked contact test for the dolerite dykes and positive reversal test for the Salmi basalts and for the dykes confirm the primary nature of the magnetisation. Comparison of this Baltica palaeopole with coeval paleomagnetic data for Laurentia and Siberia provides a revised palaeoposition of these cratons. The results verify that the East European Craton, Laurentia and Siberia were part of the supercontinent Columbia from the Late Palaeoproterozoic to the Middle Neoproterozoic. (C) 2010 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Columbia, baddeleyite, U-Pb, Baltica, East European Craton, Palaeomagnetism, Mesoproterozoic
in
Precambrian Research
volume
183
issue
3
pages
442 - 462
publisher
Elsevier
external identifiers
  • wos:000285233200007
  • scopus:77958118056
ISSN
0301-9268
DOI
10.1016/j.precamres.2010.02.014
language
English
LU publication?
yes
id
d986bd7b-c9b0-4b21-8219-bad46d590a63 (old id 1772391)
date added to LUP
2011-02-02 20:34:25
date last changed
2018-05-29 10:04:10
@article{d986bd7b-c9b0-4b21-8219-bad46d590a63,
  abstract     = {Palaeomagnetic and geochronological studies on mafic rocks in the Lake Ladoga region in South Russian Karelia provide a new, reliably dated Mesoproterozoic key paleopole for the East European Craton (Baltica). U-Pb dating on baddeleyite gives a crystallisation age of 1452 +/- 12 Ma for one of the studied dolerite dykes. A mean palaeomagnetic pole for the Mesoproterozoic dolerite dykes. Valaam sill and Salmi basalts yields a paleopole at 15.2 degrees N, 177.1 degrees E, A(95) = 5.5 degrees. Positive baked contact test for the dolerite dykes and positive reversal test for the Salmi basalts and for the dykes confirm the primary nature of the magnetisation. Comparison of this Baltica palaeopole with coeval paleomagnetic data for Laurentia and Siberia provides a revised palaeoposition of these cratons. The results verify that the East European Craton, Laurentia and Siberia were part of the supercontinent Columbia from the Late Palaeoproterozoic to the Middle Neoproterozoic. (C) 2010 Elsevier B.V. All rights reserved.},
  author       = {Lubnina, Natalia V. and Mertanen, Satu and Söderlund, Ulf and Bogdanova, Svetlana and Vasilieva, Tatiana I. and Frank-Kamenetsky, Dmitry},
  issn         = {0301-9268},
  keyword      = {Columbia,baddeleyite,U-Pb,Baltica,East European Craton,Palaeomagnetism,Mesoproterozoic},
  language     = {eng},
  number       = {3},
  pages        = {442--462},
  publisher    = {Elsevier},
  series       = {Precambrian Research},
  title        = {A new key pole for the East European Craton at 1452 Ma: Palaeomagnetic and geochronological constraints from mafic rocks in the Lake Ladoga region (Russian Karelia)},
  url          = {http://dx.doi.org/10.1016/j.precamres.2010.02.014},
  volume       = {183},
  year         = {2010},
}