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Ni-Co enrichment and High-Tech metals geochemistry in the Wingellina Ni-Co oxide-type laterite deposit (Western Australia)

Published on Jan 1, 2019in Journal of Geochemical Exploration 3.47
· DOI :10.1016/j.gexplo.2018.11.004
F. Putzolu1
Estimated H-index: 1
,
Maria Boni24
Estimated H-index: 24
+ 2 AuthorsFranco Pirajno48
Estimated H-index: 48
(UWA: University of Western Australia)
Cite
Abstract
Abstract The aim of this study is to evaluate the Ni-Co enrichment and the high-tech metals (REE and Sc) geochemistry in the Wingellina Ni-Co oxide-type laterite deposit (Western Australia). The study has been carried out on two mineralized cores (WPDD0012 and WPDD0019 drillcores) originating from two areas of the deposit. The geochemical assessments have been integrated with the analysis of laterite facies and sample mineralogy. In both the studied laterite profiles Ni enrichment was mostly controlled by the paragenetic evolution of the laterite itself, whereas Co enrichment was related to the formation of Mn-oxy-hydroxide-rich horizons in the limonitic ore-body. Significant REEs concentrations (up to 890 ppm) have been observed within the limonite zones. The correlation between REEs and the major oxides shows a decoupling between Ce and the other REEs, likely reflecting either a variable enrichment process among the different REEs, or a heterogeneous mineralogy of the REEs-bearing phases. Differently from other Ni-Co laterite deposits, Sc is only in limited part correlated with Fe 2 O 3 , having been most commonly detected in Ni- and SiO 2 -rich zones of the saprolitic parts of the profiles. All the geochemical features, the facies characteristics and the Ni-Co, REEs and Sc grades observed in the two studied profiles seems to be the results of the interactions between two main controlling factors: distinct parent rock lithology and diverse degree of serpentinization.
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  • Citations (1)
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References52
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Published on Jun 1, 2018in Ore Geology Reviews 3.39
F. Putzolu1
Estimated H-index: 1
,
Giuseppina Balassone14
Estimated H-index: 14
+ 4 AuthorsFranco Pirajno48
Estimated H-index: 48
(UWA: University of Western Australia)
Abstract The Wingellina deposit (currently owned by Metals X Limited) is an oxide-type Ni-Co laterite, with 168 Mt of ore grading 0.98% Ni and 0.08% Co. The laterite profile is derived from the weathering of the olivine-rich mafic-ultramafic layered intrusion of the Giles Complex (Mesoproterozoic) and consists of a well-developed limonitic ore and a thin saprolite horizon. XRPD, SEM-EDS and EMPA analyses revealed that the ore zone is dominated by Fe- and Mn-(hydr)oxides, which are the main carri...
Published on Nov 1, 2017in Geochimica et Cosmochimica Acta 4.26
Gabrielle Dublet1
Estimated H-index: 1
(EPFL: École Polytechnique Fédérale de Lausanne),
Farid Juillot29
Estimated H-index: 29
(UPMC: Pierre-and-Marie-Curie University)
+ 6 AuthorsGuillaume Morin44
Estimated H-index: 44
(UPMC: Pierre-and-Marie-Curie University)
Because they can host significant amounts of Co, the Mn-oxides are commonly considered as the major Co-bearing mineral species in lateritic environments. However, little is known about the process leading to the formation and/or the weathering of these Co-rich Mn-oxides. This lack of knowledge is mainly due to the fact that Co concentrations are too low in primary silicates for classical speciation analysis. In this study, we investigated both Co and Mn speciation in a 64 m thick lateritic regol...
Published on Oct 1, 2017in Mineralium Deposita 3.40
Esperança Tauler5
Estimated H-index: 5
(University of Barcelona),
John F. Lewis19
Estimated H-index: 19
(GW: George Washington University)
+ 6 AuthorsSalvador Galí15
Estimated H-index: 15
(University of Barcelona)
Hydrous Mg silicate-type Ni-laterite deposits, like those in the Falcondo district, Dominican Republic, are dominated by Ni-enriched serpentine and garnierite. Recently, abundant Ni-smectite in the saprolite zone have been discovered in Loma Ortega, one of the nine Ni-laterite deposits in Falcondo. A first detailed study on these Ni-smectites has been performed (μXRD, SEM, EPMA), in addition to a geochemical and mineralogical characterisation of the Loma Ortega profile (XRF, ICP-MS, XRD). Unlike...
Published on Jan 1, 2017
Mathieu Chassé2
Estimated H-index: 2
,
William L. Griffin96
Estimated H-index: 96
+ 1 AuthorsGeorges Calas37
Estimated H-index: 37
Scandium (Sc) has unique properties, highly valued for many applications. Future supply is expected to rely on unusually high-grade (up to 1000 ppm) lateritic Sc ores discovered in Eastern Australia. To understand the origin of such exceptional concentrations, we investigated Sc speciation in one of these deposits. The major factors are unusually high concentrations in the parent rock together with lateritic weathering over long time scales in a stable tectonic context. At microscopic and atomic...
Published on Mar 1, 2016in Ore Geology Reviews 3.39
Thomas Aiglsperger6
Estimated H-index: 6
(University of Barcelona),
Joaquín A. Proenza25
Estimated H-index: 25
(University of Barcelona)
+ 5 AuthorsJana Ďurišová6
Estimated H-index: 6
Ni laterites are considered worthy targets for critical metals (CM) exploration as Rare Earth Elements (REE), Sc and platinum group elements (PGE) can be concentrated during weathering as a result ...
Published on Dec 1, 2015in Ore Geology Reviews 3.39
Wolfgang D. Maier36
Estimated H-index: 36
(Cardiff University),
Heather M. Howard13
Estimated H-index: 13
(Geological Survey of Western Australia)
+ 5 AuthorsStephen J. Gardoll2
Estimated H-index: 2
(Curtin University)
Abstract More than 20 layered intrusions were emplaced at c. 1075 Ma across > 100 000 km 2 in the Mesoproterozoic Musgrave Province of central Australia as part of the c. 1090–1040 Ma Giles Event of the Warakurna Large Igneous Province (LIP). Some of the intrusions, including Wingellina Hills, Pirntirri Mulari, The Wart, Ewarara, Kalka, Claude Hills, and Gosse Pile contain thick ultramafic segments comprising wehrlite, harzburgite, and websterite. Other intrusions, notably Hinckley Range, Michae...
Published on Jun 1, 2015in Journal of Geochemical Exploration 3.47
Giovanni Mongelli17
Estimated H-index: 17
(University of Basilicata),
Rosa Sinisi8
Estimated H-index: 8
(University of Sassari)
+ 1 AuthorsG. Oggiano22
Estimated H-index: 22
(University of Sassari)
Abstract Supergene concentrations of lithiophorite found in alluvial conglomerates and residual sandy clay deposits of Messinian age in northern Sardinia, were investigated for minero-chemical composition and fractionation processes. The Mn concentration occurs as cement in conglomerate, coatings on pebbles and as concretions in clays. In the mineralisation, some transition metals including Ni, Cu, and Zn along with Ba, U, Pb, and REEs, are enriched relative to the composition of the upper conti...
Published on Mar 1, 2015in Ore Geology Reviews 3.39
S. Kalatha1
Estimated H-index: 1
(UoA: National and Kapodistrian University of Athens),
Maria Economou-Eliopoulos19
Estimated H-index: 19
(UoA: National and Kapodistrian University of Athens)
Abstract The Fe–Ni laterite deposits at the Lokris area of Greece, which are a major source of nickel, are characterized by multistage erosion/re-deposition and intense tectonic activities. This study is focused on certain mineralogical and geochemical features observed in the transitional zones above and below the laterite ore in both the Nissi and Patitira (Lokris) Ni-laterite deposits. The upper transition zone is characterized by an association of framboidal pyrite with organic matter, and t...
Published on Jan 1, 2015in Gondwana Research 6.48
Heather M. Howard13
Estimated H-index: 13
(Geological Survey of Western Australia),
R. Smithies16
Estimated H-index: 16
(Geological Survey of Western Australia)
+ 6 AuthorsWolfgang D. Maier36
Estimated H-index: 36
(Cardiff University)
The Musgrave Province is one of the most geodynamically significant of Australia's Proterozoic orogenic belts, lying at the intersection of the continent's three cratonic elements — the West, North and South Australian Cratons. While remoteness and cultural sensitivity have slowed geological research into this region, recent collaborative programs in Western Australia (the west Musgrave Province) have done much to address this. This Focus Review provides a synthesis of this, and previous, work i...
Published on Jan 1, 2015in Mineralium Deposita 3.40
Thomas Aiglsperger6
Estimated H-index: 6
(University of Barcelona),
Joaquín A. Proenza25
Estimated H-index: 25
(University of Barcelona)
+ 4 AuthorsFrancisco Longo9
Estimated H-index: 9
Two Ni-laterite profiles from the Loma Caribe peridotite (Dominican Republic) have been investigated for their platinum group element (PGE) geochemistry and mineralogy. One profile (Loma Peguera) is characterized by PGE-enriched (up to 3.5 ppm total PGE) chromitite bodies incorporated within the saprolite, whereas the second profile is chromitite-free (Loma Caribe). Total PGE contents of both profiles slightly increase from parent rocks (36 and 30 ppb, respectively) to saprolite (∼50 ppb) and re...