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