The Aitik Cu?Au?Ag deposit in northern Sweden: a product of high salinity fluids

Wanhainen, Christina; Broman, Curt; Martinsson, Olof

doi:10.1007/s00126-003-0363-2

Cited by 47 publications

(21 citation statements)

References 37 publications

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“…The highest salinity inclusions ( Fig. 3G) are similar to those noted as primary in the Aitik deposit by Wanhainen et al, (2003). The inclusion assemblage from deposits associated with the NDZ includes coexisting Lc+V (Fig.…”

Section: Fluid Inclusion Petrographysupporting

confidence: 59%

“…The samples come from both the Nautanen prospect, and from the Ferrum vein hosted Cu-Au prospect on the margins of the main deformation zone. An additional sample from the Aitik Cu-Au mine (Wanhainen et al, 2003) was analysed for comparison with the Nautanen samples. It has been suggested that primary mineralisation in the NDZ was formed at a similar time to other mineralisation in the area (1870-1890Ma; Wanhainen and Martinsson, 2003;Wanhainen et al, 2005), although the Aitik deposit may represent a deformed and metamorphosed porphyry-Cu system (Monro, 1988).…”

Section: Background Geologymentioning

confidence: 99%

“…Secondary fluid inclusions can be related to either remobilisation of Cu or addition of Cu to the deposits as sulphides phases occur as solid inclusions along secondary fluid inclusion trails (Wanhainen et al, 2003).…”

Section: Background Geologymentioning

confidence: 99%

“…The key linking factor in all models is the involvement of high salinity brines, which account for the high total masses of Fe deposited and the prevalence of Na-rich alteration including the formation of regional scapolite and albite. There is also good evidence for mixing of different fluids, and/or for numerous generations of fluid circulation (Broman and Martinsson, 2000;Wanhainen et al, 2003;Gleeson and Smith, 2009), including CO 2 -rich fluids either during the main stage of ore deposition, or involved in post ore modification of the deposits (e.g. Williams et al, 2001;Fu et al, 2003;Baker et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Hydrothermal fluid evolution and metal transport in the Kiruna District, Sweden: Contrasting metal behaviour in aqueous and aqueous–carbonic brines

Smith

Gleeson

Yardley

2013

Geochimica et Cosmochimica Acta

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Please cite this article as: Smith, M.P., Gleeson, S.A., Yardley, B.W.D., Hydrothermal fluid evolution and metal transport in the Kiruna District, Sweden: Contrasting metal behaviour in aqueous and aqueous-carbonic brines, Geochimica et Cosmochimica Acta (2012), doi: http://dx.doi.org/10. 1016/j.gca.2012.10.015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.Hydrothermal fluid evolution and metal transport in the Kiruna District, Sweden: Contrasting metal behaviour in aqueous and aqueous-carbonic brines. Iron and other transition metal contents correlate strongly with Cl concentrations, with secondary controls on solubility from pH, redox and temperature. Copper and Ag contents are higher in lower salinity aqueous-carbonic brines (up to 5000ppm Cu, 900ppm Ag) than in the most saline brines (up to 2297ppm Cu, 837ppm Ag). This may reflect differences in metal source between deposit types, but is also consistent with the complexation of Cu by bisulphide in the lower salinity fluids. Late stage aqueous-carbonic fluid flux through the deformed deposits either introduced additional copper to the deposits, remobilised pre-existing copper or both.

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Section: Fluid Inclusion Petrographysupporting

confidence: 59%

Section: Background Geologymentioning

confidence: 99%

Section: Background Geologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrothermal fluid evolution and metal transport in the Kiruna District, Sweden: Contrasting metal behaviour in aqueous and aqueous–carbonic brines

Smith

Gleeson

Yardley

2013

Geochimica et Cosmochimica Acta

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“…In the Norrbotten district, some mineralising fluids are Carich. This enrichment is probably due to the dissolution of limestones during the interaction of mineralising fluids with calc-silicate skarns in the area (Wanhainen et al 2003, Smith et al, 2012. The IOCG alteration, at some locations in the Norrbotten region, is also associated with CO 2 -rich hydrothermal fluids and characteristic elemental concentrations that are well understood (Smith et al 2012).…”

Section: Geology Background and Previous Studiesmentioning

confidence: 96%

Evidence of multiple halogen sources in scapolites from iron oxide-copper-gold (IOCG) deposits and regional Na Cl metasomatic alteration, Norrbotten County, Sweden

et al. 2017

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Please cite this article as: Bernal, Nelson F., Gleeson, Sarah A., Smith, Martin P., Barnes, Jaime D., Pan, Yuanming, Evidence of multiple halogen sources in scapolites from iron oxide-copper-gold (IOCG) deposits and regional Na¡ce:glyph name="sbnd"/¿Cl metasomatic alteration, Norrbotten County, Sweden, Chemical Geology (2017), doi:10.1016/j.chemgeo.2017 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Overall, the data in this study suggest that halogens in early scapolites were derived from residual brines and halite, during metamorphism of evaporites linked to the RM alteration. Later in the history of the Norrbotten district components of the RM alteration were recycled and mixed during magmatic and local metasomatic events to varying extents, resulting in the brines associated with IOCG alteration. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT A C C E P T E D M A N U S C R I P T

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Higher-grade metamorphic associations

Laznicka¹

2010

Giant Metallic Deposits

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The Aitik Cu?Au?Ag deposit in northern Sweden: a product of high salinity fluids

Cited by 47 publications

References 37 publications

Hydrothermal fluid evolution and metal transport in the Kiruna District, Sweden: Contrasting metal behaviour in aqueous and aqueous–carbonic brines

Hydrothermal fluid evolution and metal transport in the Kiruna District, Sweden: Contrasting metal behaviour in aqueous and aqueous–carbonic brines

Evidence of multiple halogen sources in scapolites from iron oxide-copper-gold (IOCG) deposits and regional Na Cl metasomatic alteration, Norrbotten County, Sweden

Higher-grade metamorphic associations

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