Distribution of platinum-group and chalcophile elements in the Aguablanca Ni–Cu sulfide deposit (SW Spain): Evidence from a LA-ICP-MS study

Piña, Rubén; Gervilla, Fernando; Barnes, Sarah‐Jane; Menor, Lorena Ortega; Hernández, Rosario Lunar

doi:10.1016/j.chemgeo.2011.02.010

Cited by 92 publications

(36 citation statements)

References 40 publications

(35 reference statements)

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“…Chalcopyrite hosts negligible amounts of PGE, consistent with previous studies (e.g., Barnes et al, 2008;Dare et al, 2010aDare et al, , 2010bDare et al, , 2011Dare et al, , 2014Piña et al, 2012). This is because Pt and Pd are incompatible in ISS (Peregoedova, 1998).…”

Section: Role Of Fractionation Of the Sulfide Liquidsupporting

confidence: 82%

“…In PGE-rich Ni-Cu ores (e.g., Noril'sk-Talnakh, Barnes et al, 2006Barnes et al, , 2008Cabri et al, 2003) and high-PGE reefs in layered intrusions (the J-M Reef in the Stillwater Complex, Godel and Barnes, 2008; the Merensky Reef and Platreef in the Bushveld Complex, Ballhaus and Sylvester, 2000;Godel et al, 2007;Holwell and McDonald, 2007;Hutchinson and McDonald, 2008), IPGE (Os, Ir, and Ru) and Re are concentrated in pyrrhotite; Ni, Co, Re, IPGE, and Rh are concentrated in pentlandite; whereas Ag, Cd, and Zn are partitioned into chalcopyrite. Platinum minerals are found as inclusions in the BMS and/or hosted at the grain boundaries of the BMS in most magmatic sulfide deposits Dare et al, 2010aDare et al, , 2010bDare et al, , 2011Dare et al, , 2014Godel and Barnes, 2008;Godel et al, 2007;Holwell and McDonald, 2007;Hutchinson and McDonald, 2008;Piña et al, 2012). Palladium is mainly hosted by pentlandite in PGE-rich Ni-Cu ores, whereas in reefs it occurs not only as Pd-bearing PGM, but also can been contained in pentlandite up to 2.8 wt.% .…”

Section: Introductionmentioning

confidence: 98%

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A laser ablation ICP-MS study of platinum-group and chalcophile elements in base metal sulfide minerals of the Jinchuan Ni–Cu sulfide deposit, NW China

Chen

Song

Danyushevsky

et al. 2015

Ore Geology Reviews

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Section: Role Of Fractionation Of the Sulfide Liquidsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 98%

A laser ablation ICP-MS study of platinum-group and chalcophile elements in base metal sulfide minerals of the Jinchuan Ni–Cu sulfide deposit, NW China

Chen

Song

Danyushevsky

et al. 2015

Ore Geology Reviews

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“…The behaviour of PGE during low temperature alteration A major finding of this study is the presence of significant quantities of PGE held in solid solution within pyrite, a feature also documented within other Ni-Cu-PGE sulfide deposits (e.g., Oberthür et al 1997;Barkov et al 1997;Gervilla and Kojonen 2002;Cabri et al 2002Cabri et al , 2008Cabri et al , 2010Djon and Barnes 2012;Dare et al 2011;Piña et al 2012Piña et al , 2013. Within the GNPA member, the pyrite is (1) host to comparable concentrations of IPGEs as pyrrhotite and pentlandite ( Fig.…”

Section: Hydrothermal Interactionmentioning

confidence: 83%

Precious and base metal geochemistry and mineralogy of the Grasvally Norite–Pyroxenite–Anorthosite (GNPA) member, northern Bushveld Complex, South Africa: implications for a multistage emplacement

2014

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The Grasvally Norite-Pyroxenite-Anorthosite (GNPA) member within the northern limb of the Bushveld Complex is a mineralized, layered package of mafic cumulates developed to the south of the town of Mokopane, at a similar stratigraphic position to the Platreef. The concentration of platinum-group elements (PGE) in base metal sulfides (BMS) has been determined by laser ablation inductively coupled plasma-mass spectrometry. These data, coupled with wholerock PGE concentrations and a detailed account of the platinum-group mineralogy (PGM), provide an insight into the distribution of PGE and chalcophile elements within the GNPA member, during both primary magmatic and secondary hydrothermal alteration processes. Within the most unaltered sulfides (containing pyrrhotite, pentlandite, and chalcopyrite only), the majority of IPGE, Rh, and some Pd occur in solid solution within pyrrhotite and pentlandite, with an associated Pt-As and Pd-Bi-Te dominated PGM assemblage. These observations in conjunction with the presence of good correlations between all bulk PGE and base metals throughout the GNPA member indicate the presence and subsequent fractionation of a single PGE-rich sulfide liquid, which has not been significantly altered. In places, the primary sulfides have been replaced to varying degrees by a low-temperature assemblage of pyrite, millerite, and chalcopyrite. These sulfides are associated with a PGM assemblage characterized by the presence of Pd antimonides and Pd arsenides, which are indicative of hydrothermal assemblages. The presence of appreciable quantities of IPGE, Pd and Rh within pyrite, and, to a lesser, extent millerite suggests these phases directly inherited PGE contents from the pyrrhotite and pentlandite that they replaced. The replacement of both the sulfides and PGM occurred in situ, thus preserving the originally strong spatial association between PGM and BMS, but altering the mineralogy. Precious metal geochemistry indicates that fluid redistribution of PGE is minimal with only Pd, Au, and Cu being partially remobilized and decoupled from BMS. This is also indicated by the lower concentrations of Pd evident in both pyrite and millerite compared with the pentlandite being replaced. The observations that the GNPA member was mineralized prior to intrusion of the Main Zone and that there was no local footwall control over the development of sulfide mineralization are inconsistent with genetic models involving the in situ development of a sulfide liquid through either depletion of an overlying magma column or in situ contamination of crustal S. We therefore believe that our observations are more compatible with a multistage emplacement model, where preformed PGE-rich sulfides were emplaced into the GNPA member. Such a model explains the development and distribution of a single sulfide liquid throughout the entire 400-800 m thick succession. It is therefore envisaged that the GNPA member formed in a similar manner to its nearest analogue the Platreef. Notable differences however in PGE teno...

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“…With the exception of the noble metal elements, the trace elements in sulfides could be calibrated against pressedpowder pellets of sulfide (e.g. MASS-1 or MASS-3) [153], glasses of sulfide fused with a lithium borate flux [68,154,155], silicate reference glasses [156,157] or multi-element standard solutions [158]. Košler et al [111] found that a small amount of oxygen released from the sample during the laser ablation process can also affect the elemental fractionation.…”

Section: Metal Oxides and Metal Sulfidesmentioning

confidence: 99%

Applications of LA-ICP-MS in the elemental analyses of geological samples

Liu

et al. 2013

Chin. Sci. Bull.

105

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Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), which is a rapidly developing analytical technique for the analyses of trace elements and isotopes, plays an important role in advancing the study of Earth science, especially with respect to micro-geochemistry. This article reviews the application of LA-ICP-MS in the elemental analysis of solid geological samples. Although LA-ICP-MS has been widely used in the spatial resolution analysis of element compositions and rapid bulk analysis of whole-rock and soil samples, the analysis accuracy is restricted by numerous factors, including the instrumental conditions, the elemental fractionation and matrix effects, the lack of sufficient matrix-matched reference materials, and the strategies for quantitative calibration and sensitivity drift correction. According to the type of samples and the analyte elements, the analysis accuracy can be improved through the optimization of instrument conditions and the adoption of suitable correction strategies and reference materials. LA-ICP-MS, geological sample, elemental analysis, quantitative strategy Citation:Liu Y S, Hu Z C, Li M, et al. Applications of LA-ICP-MS in the elemental analyses of geological samples.

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Distribution of platinum-group and chalcophile elements in the Aguablanca Ni–Cu sulfide deposit (SW Spain): Evidence from a LA-ICP-MS study

Cited by 92 publications

References 40 publications

A laser ablation ICP-MS study of platinum-group and chalcophile elements in base metal sulfide minerals of the Jinchuan Ni–Cu sulfide deposit, NW China

A laser ablation ICP-MS study of platinum-group and chalcophile elements in base metal sulfide minerals of the Jinchuan Ni–Cu sulfide deposit, NW China

Precious and base metal geochemistry and mineralogy of the Grasvally Norite–Pyroxenite–Anorthosite (GNPA) member, northern Bushveld Complex, South Africa: implications for a multistage emplacement

Applications of LA-ICP-MS in the elemental analyses of geological samples

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