Journal article
Iodine-rich waters involved in supergene enrichment of the Mantos de la Luna argentiferous copper deposit, Atacama Desert, Chile
Mineralium Deposita, Vol.44(6), pp.719-722
2009
Abstract
Recent studies have suggested the involvement of highly saline deep formation waters that modified preexisting Cu assemblages to form atacamite during supergene oxidation of Cu deposits in the Atacama region. In this report, we document the occurrence of (Ag-I) inclusions hosted by supergene chalcocite from Mantos de la Luna, an argentiferous Upper Jurassic stratabound Cu deposit in the Coastal Range of northern Chile. The presence of this unusual mineral assemblage indicates that iodargyrite precipitated from reducing iodine-rich waters, suggesting that the fluids involved in supergene enrichment of Cu deposits in the Coastal Range were more complex than previously thought. This suggests the prevalence of hyperarid conditions during the latest stages of supergene enrichment of the Mantos de la Luna Cu deposit in the Atacama region, supporting the notion that supergene enrichment processes in hyperarid areas are dynamic in nature and do not exclusively require the presence of meteoric water.
Details
- Title
- Iodine-rich waters involved in supergene enrichment of the Mantos de la Luna argentiferous copper deposit, Atacama Desert, Chile
- Authors/Creators
- M. Reich (Author/Creator) - University of ChileC. Palacios (Author/Creator) - University of ChileM. Alvear (Author/Creator) - University of ChileE.M. Cameron (Author/Creator) - CameronM.I. Leybourne (Author/Creator) - GNS ScienceA. Deditius (Author/Creator) - University of Michigan
- Publication Details
- Mineralium Deposita, Vol.44(6), pp.719-722
- Publisher
- Springer-Verlag
- Identifiers
- 991005543639507891
- Copyright
- © Springer-Verlag 2009.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- 8 Earth Sciences
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- 8.8.1416 Tectonic Geomorphology
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