Potential for intrusion-hosted Ni-Cu-PGE sulfide deposits in Australia: A continental-scale analysis of mineral system prospectivity

Dulfer, H.; Skirrow, Roger G.; Champion, D.C.; Highet, L.M.; Czarnota, K.; Coghlan, R.A.; Milligan, P.R.

doi:10.11636/record.2016.001

Cited by 9 publications

(3 citation statements)

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“…Creek Orogeny (Kohanpour et al, 2018) suggesting that nickel mineralisation occurred prior to this event. Extensional environments are accepted as being a common setting for nickel sulfide mineralization deposition (Begg et al, 2010;Naldrett, 2004) providing the right conditions for moderate to high degrees of partial melting beneath continents in regions of the thinned lithosphere (Dulfer et al, 2016). However, mildly compressional or transpressional conditions for Ni-PGE deposition have also been suggested by Begg et al (2010).…”

Section: Discussionmentioning

confidence: 99%

“…Mineral system analysis focusses on the critical geological processes that control the generation and preservation of mineral deposits (Blewett et al, 2010;Knox-Robinson and Wyborn, 1997;McCuaig et al, 2010;McCuaig and Hronsky, 2014;Occhipinti et al, 2016;Wyborn et al, 1994). Perspectivity mapping has arisen from mineral systems analysis (Dulfer et al, 2016;Joly et al, 2014;Joly et al, 2012;Lindsay et al, 2016a;Occhipinti et al, 2016) as a result of increased availability of large-scale geophysical datasets, and a greater understanding of the Earth evolution and geodynamics (McCuaig and Hronsky, 2014), and advances in geographical information system (GIS) technologies.…”

Section: Introductionmentioning

confidence: 99%

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Mineral systems prospectivity modelling for gold and nickel in the Halls Creek Orogen, Western Australia

Kohanpour

Occhipinti

Lindsay

et al. 2020

Ore Geology Reviews

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mineral systems prospectivity modelling for gold and nickel in the Halls Creek Orogen, Western Australia

Kohanpour

Occhipinti

Lindsay

et al. 2020

Ore Geology Reviews

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“…Consequently, Australia's mining sector, particularly in Western Australia, is relevant, accounting for approximately 6% of the global nickel market [1]. According to data provided by [2], Western Australia holds 96% of Australia's economic demonstrated resources (EDR), encompassing both nickel sulfide and lateritic nickel deposits, thereby solidifying its position as the foremost repository of nickel resources. Western Australia falls within the Archean Yilgarn Craton known to host nickel-copper-platinum group element (Ni-Cu-PGE) sulfide deposits in the volcanic-hosted komatiite magmas and lateritic nickel deposits.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a Nickel Sulfide Concentrate and Its Implications on Pentlandite Beneficiation

Ayedzi,

Zanin,

Skinner

et al. 2024

Minerals

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In anticipation of future demands, a comprehensive understanding of the chemical and mineralogical characteristics of nickel-bearing minerals is a prerequisite to devising effective nickel beneficiation methods. Of particular importance are markers in the mineralogy of the flotation concentrate that inform beneficiation strategies to improve concentrate grades, increasing both the marketability and cost of refining. In this work, a detailed characterization of a complex nickel sulfide flotation concentrate from a Western Australian deposit was carried out to determine the mode of occurrence and distribution of nickel and the associated gangue minerals, with the view of identifying prudent beneficiation strategies to improve concentrate grades. The concentrate was characterized via particle, chemical, and mineralogical techniques. Particle size analysis of the concentrate showed that it consisted predominantly of fine and ultra-fine particles (<20 μm), with the nickel value concentrated in the finer size fractions. Nickel mineralization in the ore (by quantitative X-ray diffraction) was found to be within pentlandite, violarite, millerite, and gersdorffite. The sulfide gangue was predominantly pyrrhotite, pyrite, chalcopyrite, sphalerite, arsenopyrite, and galena. Quantitative evaluation of minerals by scanning microscopy (QEMSCAN) analysis revealed that nickel minerals are at least 91% liberated, and the remaining portion (around 7%) is locked within binary iron (Fe) sulfides and 2% within complex minerals. Based on these findings, potential processing options, such as magnetic separation, gravity separation, and froth flotation, for recovering and upgrading nickel from this concentrate are discussed. Notably, with the significant presence of ultrafine/fine pyrrhotite content, averaging around 52% in the minus 38 µm fraction, novel flotation cells, including the Jameson cell, column flotation cells, and Reflux flotation cell (RFC), have been identified as potential candidates for fine/ultrafine pentlandite recovery. Overall, the characterization study conducted suggests that acquiring knowledge about the mineralogical characteristics of existing mineral concentrates can serve as a pathway to improving future concentrate grades.

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Assessment of Ore Deposit Settings

Golani

2021

Assessment of Ore Deposit Settings, Structures and Proximity Indicator Minerals in Geological Exploration

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Potential for intrusion-hosted Ni-Cu-PGE sulfide deposits in Australia: A continental-scale analysis of mineral system prospectivity

Cited by 9 publications

References 0 publications

Mineral systems prospectivity modelling for gold and nickel in the Halls Creek Orogen, Western Australia

Mineral systems prospectivity modelling for gold and nickel in the Halls Creek Orogen, Western Australia

Characterization of a Nickel Sulfide Concentrate and Its Implications on Pentlandite Beneficiation

Assessment of Ore Deposit Settings

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