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6943037 
Journal Article 
Hiekkapohja ore showings in Paleoproterozoic Central Finland Granitoid Complex - a Hydrothermal System? 
Heilimo, Esa; Mikkola, P; Niemi, S; Luukas, J; Halonen, S; , 
2017 
SOC GEOLOGY APPLIED MINERAL DEPOSITS-SGA 
GENEVA 4 
359-361 
WOS:000439764100089 
Porphyritic Cu-Mo mineralizations can be found in modern and old convergent plate-tectonic settings. They are more abundant in younger successions than in older, oldest know economical deposits of this type are Paleozoic. In the Fennoscandian shield, the largest deposits proposed to be porphyritic origin is Aitik in Northern Sweden located in volcanic succession and related to quartz monzonite intrusions. Paleproterozoic Central Finland Granitoid complex (CFGC) can be considered as a potential host for porphyry type deposits, as it formed in convergent setting and is volumetrically dominated by granitoids. So far only the Kopsa deposit in western CFGC has been properly studied, although several indications and potential areas are known. One being the Hiekkapohja area, where small high grade mineralizations (Zn, Pb, Cu, Ag, Au) and mineralized boulders with unknown sources are known from a geographically constrained area. 
Dion, C; MercierLangevin, P; Dube, B; Bardoux, M; Ross, PS; 
978-2-9816898-0-1 
14th SGA Biennial Meeting on Mineral Resources to Discover 
Quebec City, CANADA