O2 Muu

U-Pb zircon dating of igneous rocks in the Salo area, SW Finland




Julkaisun tekijät: Väisänen M, Kara J, Penttinen H, Lahaye Y, O’Brien H, Skyttä P

Konferenssin vakiintunut nimi: LITHOSPHERE

Kustantaja: University of Helsinki

Paikka: Helsinki

Julkaisuvuosi: 2021

Kirjan nimi *: LITHOSPHERE 2021: ELEVENTH SYMPOSIUM ON STRUCTURE, COMPOSITION AND EVOLUTION OF THE LITHOSPHERE: PROGRAMME AND EXTENDED ABSTRACTS

Sarjan nimi: Report / Institute of Seismology, University of Helsinki

Numero sarjassa: S-71

ISBN: 978-952-10-9604-4

eISSN: 0357-3060

Verkko-osoite: https://www.seismo.helsinki.fi/ilp/lito2021/Lithosphere_2021_Symposium_Abstract_Volume.pdf


Tiivistelmä

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.


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Last updated on 2021-24-06 at 10:12