Modified: 25.03.2009
Gold in Finland
FINGOLD Database
Great Potential – Still Under-Explored
Pahtavaara mine
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Saattopora ore
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Kutemajärvi mine
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- Gold deposits occur in Finland in both
Archaean and Proterozoic domains
, in all orogenic belts and in nearly all possible geological settings of the
igneous-metamorphic terrains.
- The main Au provinces are the Archaean greenstone belts in eastern Finland, Palaeoproterozoic
Karelian greenstone belts in Lapland, and the Palaeoproterozoic Svecofennian schist belts in
central and southern Finland.
- About 200 hard-rock gold occurrences are presently known.
- Large parts of Finland are still under-explored for gold. Until 1990, only 40 deposits had been
discovered. For example, the first signs of gold mineralisation in the
Oijärvi Greenstone
Belt were discovered as recently as in 1996.
- Orogenic mesothermal mineralisation is the dominant type of gold occurrence in Finland. Other
genetic
types include: 1) skarn or
FeOx-Cu-Au
, 2) metamorphosed epithermal, 3) intrusion-related (non-skarn), 4) palaeoplacer, and 5)
placer deposits. Orogenic lode-gold, skarn or FeOx-Cu-Au and metamorphosed epithermal deposits have
been mined. In addition, the placer occurrences are undergoing very small-scale exploitation
activities.
- The FINGOLD database presents data on all deposits in Finland where gold is the main commodity. This database contains information on location, holding, resources, exploration, ore mineralogy and composition, structure, alteration and geological setting. There are:
200 drilling-indicated occurrences, which include:
48 undeveloped deposits with a
preliminary resource estimate
Seven deposits with pilot mining (Iilijärvi,
Jokisivu,
Juomasuo,
Laivakangas,
Pampalo,
Sirkka kaivos,
Suurikuusikko)
Five
past
producers
Two present producers (Kutemajärvi,
Pahtavaara)
Compare large-scale structures between Ilomantsi, Timmins and Kalgoorlie
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Suurikuusikko deposit
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