GEOTECHNICAL REPORT 6 FinlandsTHE FINNISH Stenindustri-NATURAL STONE förbundASSOCIATION rf Natural stones of the Kuru granite batholith in south-central Finland Olavi Selonen, Paavo Härmä and Carl Ehlers 2017 THE FINNISH NATURAL STONE ASSOCIATION Geotechnical report 6 Natural stones of the Kuru granite batholith in south-central Finland YHTEENVETO: Kurun graniittialueen rakennuskivet Olavi Selonen Åbo Akademi University Department of natural sciences Geology and Mineralogy FI-20500 Turku, Finland E-mail:
[email protected] Paavo Härmä Geological Survey of Finland FI-02151 Espoo, Finland E-mail:
[email protected] Carl Ehlers Åbo Akademi University Department of natural sciences Geology and Mineralogy FI-20500 Turku, Finland E-mail:
[email protected] ISSN 2489-3161 Layout: Sonck-Koota Publisher: The Finnish Natural Stone Association P.O.Box 381, FIN-00131 HELSINKI www.suomalainenkivi.fi Front cover. The Satakunta bridge across the Tammerkoski rapids in Tampere, Finland. The bridge is built in grey granite from Kuru. Photo: Olavi Selonen. Small photo: www.suomalainenkivi.fi Kansikuva. Tampereen Satakunnansilta on rakennettu Kurun harmaasta graniitista. Kuva: Olavi Selonen. Pikkukuva: www.suomalainenkivi.fi HELSINKI 2017 GEOTECHNICAL REPORT 6 CONTENTS 1 Introduction ....................................................................................................................... 2 2 Geological outline ............................................................................................................. 2 3 Rock types of the