PRECAMBRIAN SUPERCONTINENTS

Paleomagnetic method is used to study Precambrian (> 580 Ma) supercontinents. 
The existence of Archean Superia supercraton (2.6 - 2.1 Ga; Bleeker and Ernst, 2006)
will be tested by defining positions of Karelian craton (Fennoscandia) between
2.45 - 2.0 Ga (Salminen et al., 2010).  

The lifecycle of Columbia (Nuna, Hudsonland, 1.8 - 1.25 Ga) supercontinent  and long-lived
(1.8 - 1.25/1.12 Ga; e.g. Gower et al., 1990; Salminen and Pesonen, 2007; Salminen et al.,
2009; Evans, submitted and references therein) rigid connection between Baltica
(Fennoscandia, Sarmatia and Volgo-Uralia) and Laurentia (North America and Greenland)
within supercontinent Columbia will be tested in light of new paleomagnetic data.


Post doctoral research about Precambrian Supercontinents is logical
continuation for my PhD work.
Research was started in University of Helsinki with personal grants by
several private foundations and it will continue in Yale University starting from
1st of May 2010 with grant provided by Academy of Finland.



Research funded by

Academy of Finland - University of Helsinki
Jenny and Antti Wihuri Foundation - Alfred Kordelin Foundation
Eemil Aaltonen Foundation - Magnus Ehrnrooth Foundation
Finnish Concordia Fund - Sohlberg’s Delegation  IGCP509-project - NIR-project