@incollection{epos2010,
          volume = {7},
          author = {Timo M{\"a}ki and Marcello Ima{\~n}a and Jukka Kousa and Jouni Luukas},
       booktitle = {Mineral Deposits of Finland},
          editor = {Wolfgang Derek Maier and Raimo Lahtinen and Hugh O'Brian},
           title = {The Vihanti-Pyh{\"a}salmi VMS Belt},
       publisher = {Elsevier},
           pages = {507--530},
            year = {2015},
             url = {https://episodesplatform.eu/eprints/2010/},
        abstract = {The Vihanti-Pyh{\"a}salmi belt contains the most important volcanogenic massive sulfide (VMS) deposits in
Finland. The volcano-sedimentary host rocks belong to a 1.93?1.92 Ga island arc that occurs along the
northwestern parts of the Raahe-Ladoga shear complex. The stratigraphy in the region is divided into two
units, a lower bimodal volcanic unit conforming to the Pyh{\"a}salmi group and an upper volcano-sedimentary
association defined as the Vihanti group. The U-Pb zircon ages of the two groups are similar.
The Vihanti-Pyh{\"a}salmi belt hosts two large VMS deposits, Pyh{\"a}salmi in the Pyh{\"a}salmi group and Vihanti in
the Vihanti group, as well as a number of small sulfide deposits located around them. The Pyh{\"a}salmi
deposit is hosted by rhyolitic and basaltic volcanic rocks, contains 75.7 Mt of pyritic mineralization grading
0.9\% Cu, 1.9\% Zn, 0.4 g/t Au, and 14.1 g/t Ag, and hosts the only currently producing mine (2014) in the
belt. The Vihanti mine operated from 1954?1992, producing 28 Mt at 5.12\% Zn, 0.48\% Cu, 0.36\% Pb, 25
ppm Ag, and 0.49 ppm Au. The Vihanti deposit and three minor satellite mineralizations are hosted in a
sequence dominated by intermediate and felsic metavolcanic rocks.}
}