Abstract
Genetic types of gold deposits identified in Finland include Au-rich volcanogenic massive sulfide (VMS), metamorphosed high-sulfidation epithermal, porphyry gold-copper, orogenic gold, placer, and paleoplacer deposits. There also are gold deposits and occurrences whose genetic type is ambiguous, such as the Au-Co ± Cu occurrences in the Kuusamo schist belt, the Au-U occurrences in the Peräpohja schist belt, and the Pahtavaara gold deposit. In contrast to many other Precambrian shield areas, most of the known gold occurrences and resources in Finland are hosted by Paleoproterozoic sequences. All gold-mineralized environments in Finland, except the possible Archean epithermal deposits and the recent placers, can be related to supercontinent evolution of the region between ∼2.75–1.77 Ga. Most of the gold deposits were formed during the main stages of crustal growth globally, at ∼2.72–2.64 Ga and 1.91–1.77 Ga, during the Neoarchean and Svecofennian orogenies, respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
