Tonalite-trondhjemite subvolcanic intrusions were locally emplaced within andesites and coeval rhyolites were extruded on the basaltic substrate.
M.D. Roberts, N.H.S. Oliver, R. Lahtinen 2004, 'Geology, lithogeochemistry and paleotectonic setting of the host sequence to the KangasjärviZn-Cu deposit, central Finland: Implications for volcanogenic massive sulphide explorationin the Vihanti-Pyhäsalmi district', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume76/Roberts.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)