The Mantoverde Iron Oxide-Copper-Gold District, III Region, Chile: The Role of Regionally Derived, Nonmagmatic Fluids in Chalcopyrite Mineralization

Benavides, Jorge; Kyser, T. Kurt; Clark, Alan H.; Oates, Christopher J.; Zamora, Richard; Tarnovschi, Raúl; Castillo, Boris

doi:10.2113/gsecongeo.102.3.415

Cited by 93 publications

(34 citation statements)

References 42 publications

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“…This conclusion is in agreement with conceptual models on IOCG formation (e.g. Barton and Johnson, 1996;Williams et al, 2005;Williams et al, 2010;Chen, 2013;Barton, 2014) that involve multiple sulfur sources including magmatic sulfur (Marschik and Fontbote, 2001;Oliver et al, 2004;Pollard, 2006;de Haller and Fontbote, 2009) mixed with external sulfur such as seawater or evaporites (Haynes et al, 1995;Barton and Johnson, 1996;Barton and Johnson, 2000;Benavides et al, 2007;Chen, 2010), formation waters and metamorphic fluids (Kendrick et al, 2007;Monteiro et al, 2008) as well as sulfur contributed via reaction with previously formed pyrite (Wilson et al, 2003;Davidson et al, 2007).…”

Section: Introductionsupporting

confidence: 80%

A magmatic source of hydrothermal sulfur for the Prominent Hill deposit and associated prospects in the Olympic iron oxide copper-gold (IOCG) province of South Australia

Schlegel

Wagner

Boyce

et al. 2017

Ore Geology Reviews

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Section: Introductionsupporting

confidence: 80%

A magmatic source of hydrothermal sulfur for the Prominent Hill deposit and associated prospects in the Olympic iron oxide copper-gold (IOCG) province of South Australia

Schlegel

Wagner

Boyce

et al. 2017

Ore Geology Reviews

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“…These ranges are comparable with the compositions of marialites from the Tienshan Fe Skarn deposit, China (Pan and Dong, 2003), the Marcona Magnetite deposit, Peru (Chen et al, 2010), and the Manto Verde IOCG, Chile (Benavides et al, 2007). …”

Section: Chemical Characteristics Of Scapolitessupporting

confidence: 71%

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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“…The origin of IOCG deposits is controversial and several authors have proposed different models to explain the formation of these deposits (e.g., Hitzman et al, 1992;Barton and Johnson, 1996;Ullrich and Clark, 1999;Pollard, 2000;Marschik and Fontboté, 2001;Benavides et al, 2007;Rieger et al, 2010;Barton, 2014). The main debate is centered on the origin of the hydrothermal fluids responsible for the mineralization; i.e., the magmatic-hydrothermal vs. the non-magmatic (basinal or metamorphic) model (Fig.…”

Section: Discussionmentioning

confidence: 99%

Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach

Barra

Reich

Selby

et al. 2017

Ore Geology Reviews

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'Unraveling the origin of the Andean IOCG clan : a Re-Os isotope approach.', Ore geology reviews., 81 (Part 1). pp. 62-78. Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. 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. A C C E P T E D M A N U S C R I P T Chilean IOCGs is the result of different events with metals derived from diverse sources i.e., the magmatic-hydrothermal system and basement/host rocks. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPTRhenium and Os concentrations for the various studied deposits vary over a wide range of values at the ppb and ppt level, respectively, with many sulfides and magnetite bearing appreciable no common Os. The Re and Os contents in sulfides (pyrite, IOCGs in China and Australia argue for the involvement of a much more radiogenic crustal source possibly related to non-magmatic oxidized saline brines that leached basement rocks. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPTWe conclude that Andean IOCG (and IOA) deposits in northern Chile were formed mainly by magmatic-hydrothermal processes related to the formation and emplacement of plutonic rocks with moderate contribution from leaching of basement and/or volcanic host rocks. Surface or basin-derived brines as well as sediments appear to play only a minor role in the formation of the Chilean IOCG clan.

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The Mantoverde Iron Oxide-Copper-Gold District, III Region, Chile: The Role of Regionally Derived, Nonmagmatic Fluids in Chalcopyrite Mineralization

Cited by 93 publications

References 42 publications

A magmatic source of hydrothermal sulfur for the Prominent Hill deposit and associated prospects in the Olympic iron oxide copper-gold (IOCG) province of South Australia

A magmatic source of hydrothermal sulfur for the Prominent Hill deposit and associated prospects in the Olympic iron oxide copper-gold (IOCG) province of South Australia

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

Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach

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