Sulphide mineralization in the Skellefte District, northern Sweden, and its relation to regional granitization

Gavelin, Sven

doi:10.2113/gsecongeo.50.8.814

Cited by 25 publications

(2 citation statements)

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“…For example, 57.8 mg/kg Co has been recorded in the tailings resulting from mining Zn-Cu in the Skellefte district sulphide ore field (Sweden) [59]. According to Gavelin (1955) [60], these deposits predominantly contained up to 2 wt. % Zn and 0.001-0.01 wt.…”

Section: Cobalt In Mine Watersmentioning

confidence: 99%

Geochemistry, Mineralogy and Microbiology of Cobalt in Mining-Affected Environments

2020

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Cobalt is recognised by the European Commission as a “Critical Raw Material” due to its irreplaceable functionality in many types of modern technology, combined with its current high-risk status associated with its supply. Despite such importance, there remain major knowledge gaps with regard to the geochemistry, mineralogy, and microbiology of cobalt-bearing environments, particularly those associated with ore deposits and subsequent mining operations. In such environments, high concentrations of Co (up to 34,400 mg/L in mine water, 14,165 mg/kg in tailings, 21,134 mg/kg in soils, and 18,434 mg/kg in stream sediments) have been documented. Co is contained in ore and mine waste in a wide variety of primary (e.g., cobaltite, carrolite, and erythrite) and secondary (e.g., erythrite, heterogenite) minerals. When exposed to low pH conditions, a number of such minerals are known to undergo dissolution, typically forming Co2+(aq). At circumneutral pH, such aqueous Co can then become immobilised by co-precipitation and/or sorption onto Fe and Mn(oxyhydr)oxides. This paper brings together contemporary knowledge on such Co cycling across different mining environments. Further research is required to gain a truly robust understanding of the Co-system in mining-affected environments. Key knowledge gaps include the mechanics and kinetics of secondary Co-bearing mineral environmental transformation, the extent at which such environmental cycling is facilitated by microbial activity, the nature of Co speciation across different Eh-pH conditions, and the environmental and human toxicity of Co.

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Section: Cobalt In Mine Watersmentioning

confidence: 99%

Geochemistry, Mineralogy and Microbiology of Cobalt in Mining-Affected Environments

2020

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“…According to GAVELIN (1955) and GRre & WlRSTAM (1970) it is reasonable to assume that the resulting generation of "later" (or post-kinematic) palingenetie granites concentrated the base metal sulfides from these black shales, subsequently giving rise to the numerous ore bodies of the district. The sulfide mineralization of this area is generally believed to be related to granitization processes which affected a sequence of Svecofennian sediments including large amounts of graphitic schists with disseminated sulfides.…”

Section: Silica-dolomite F~i Shalesmentioning

confidence: 99%

Sulfur in the precambrian metallogeny

Schidlowski

1973

Geol Rundsch

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Cyclic ore formation of some volcanogenic massive sulfide deposits in the skellefte district, Sweden

Trepka-Bloch

1985

Mineral. Deposita

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Sulphide mineralization in the Skellefte District, northern Sweden, and its relation to regional granitization

Cited by 25 publications

References 0 publications

Geochemistry, Mineralogy and Microbiology of Cobalt in Mining-Affected Environments

Geochemistry, Mineralogy and Microbiology of Cobalt in Mining-Affected Environments

Sulfur in the precambrian metallogeny

Cyclic ore formation of some volcanogenic massive sulfide deposits in the skellefte district, Sweden

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