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Fennoscandian Base Metal Deposits - a millenium of mining
Nordic Mining Day PDAC 2015
Erika Ingvald Geological Survey of Sweden
Cu 5 years
Late 2023
Falu mine c.800 - 1992
Løkken Røros
Falu mine
Garpenberg
Early mining c. 800-1750
Falu mine (c. 800-1992) 25Mt@ 3% Cu, 3g/t Au, 18 g/t Ag Garpenberg (c.1200-active) 115,2 Mt@ 0.1% Cu, 4.5% Zn, 2.3% Pb, 130 g/t Ag Røros (1644-1977) 6.5 Mt@ 2.7% Cu, 2.5 % Zn Løkken (1654-1987) 30 Mt@ 2.3% Cu, 1.8 % Zn
Paleozoic and Paleoproterozoic VMS-deposits
Hundred years ago 1900-1940 Skellefte district Boliden (1926-1967) 8.35 Mt@ 1.4% Cu, 15.5 g/t Au Kristineberg (1935- active) 34Mt@ 1.1% Cu, 6.1 % Zn Outokumpu area Outokumpu (1910-1989) 28.5Mt@ 3.8% Cu, 0,12% Ni, 0.24% Co Caledonides Mofjellet (1928-1987) 5.35 Mt@ 0.31% Cu, 3.61 % Zn Kola Pechenga
Outokumpu
Skellefte district
Mofjellet
Pechenga
Paleozoic and Paleoproterozoic VMS-deposits
Today 13 active base metal mines + 4 in Russia VMS and new type of deposits:
Aitik
Laver
Porphyry copper Sediment-hosted Cu
Nussir
Black schist-hosted
Talvivaara
Mafic intrusion-hosted
Kevitsa
Serpentinite-hosted Ni
Rönnbäcken
VMS - large and low grade deposits
http://en.gtk.fi/informationservices/databases/fodd/ or Google: FODD+GTK
A millenium of mining and exploration and documentation
A millenium of mining and exploration
Mine maps
Geological maps
Geochemistry
Ground geophysics
Drillcores
Exploration reports
Roads Topographical
maps LIDAR data
A millenium of mining and exploration and documentation and research
3D-4D models
IR drill core scanning
Cu
Fennoscandia is the region to invest in
Copper coins from Falu mine. Photo Birgitta Wahlberg