Björkdalsgruvan, Sandfors, Västerbotten
1988-99 the largest gold mine in Europe. Closed for a short period (around millenium) when the Terra Mining AB went bankcrupt.
The gold at Bjorkdal is associated with centimetre to metre wide subvertical quartz veins within a biotite-altered granodiorite. The gold mineralization is localized near the contact between the intrusive and the overlying Skelleftea Group. The veins mainly trend NE and NNE and terminate at the sediment-intrusive contact. The gold is found both as free milling gold and also associated with pyrite.
OP& UG operation since autumn 2007.
Today owned by Gold Ore Resources.
Located approximately 40 km from Skellefteå.
References
- GFF 112, 59.
- Grensman, F. (1989): Björkdalsgruvan. NAGS-nytt 16(2), 15.
- Mineral. Deposita 29, 139-149.
- Econ. Geol. 101 (2006), 1415-1425.
External Links
http://www.goldoreresources.com/s/Home.aspMineral List
33 entries listed. 30 valid minerals.
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