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
