U-Pb zircon dating of igneous rocks in the Salo area, SW Finland
: Väisänen M, Kara J, Penttinen H, Lahaye Y, O’Brien H, Skyttä P
: Ilmo Kukkonen, Toni Veikkolainen, Suvi Heinonen, Fredrik Karell, Elena Kozlovskaya, Arto Luttinen, Kaisa Nikkilä,
Vesa Nykänen, Markku Poutanen, Pietari Skyttä, Eija Tanskanen, Timo Tiira
: LITHOSPHERE
Publisher: University of Helsinki
: Helsinki
: 2021
: LITHOSPHERE 2021: ELEVENTH SYMPOSIUM ON STRUCTURE, COMPOSITION AND EVOLUTION OF THE LITHOSPHERE: PROGRAMME AND EXTENDED ABSTRACTS
: Report / Institute of Seismology, University of Helsinki
: S-71
: 151
: 154
: 978-952-10-9604-4
: 0357-3060
: https://www.seismo.helsinki.fi/ilp/lito2021/Lithosphere_2021_Symposium_Abstract_Volume.pdf
: https://research.utu.fi/converis/portal/detail/Publication/51843445
The bedrock of the Salo area in SW Finland is mainly occupied by granitoids. We dated five granitoids and two mafic volcanic rocks with single zircon method. The granitoids fall in two age groups, 1.86–1.85 and 1.83–1.82 Ga. Mafic plutonic rocks occur in both age groups. The volcanic rocks are 1.90 and 1.89 Ga in age. Further, the samples display two periods of metamorphic zircon growth at 1.86 and 1.83 Ga, synchronous with the granitoid magmatism.
