Bulletin of the Geological Society of Finland 2010:1

Bulletin of the Geological Society of Finland 1/2010 contains the following articles: T. Torvela & C. Ehlers, Microstructures associated with the Sottunga-Jurmo shear zone and their implications for the 1.83–1.79 Ga tectonic development of SW Finland; E. Hanski, H. Huhma & J. Vuollo, SIMS zircon ages and Nd isotope systematics of the 2.2. Ga mafic intrusions in northern and eastern Finland; J. J. Virtasalo, A. T. Kotilainen & M. E. Räsänen, Definitions of Trollskär Formation and Sandön Formation in the Archipelago Sea, northern Baltic Sea.