 | Dublet, Gabrielle, Juillot, Farid, Brest, Jessica, Noël, Vincent, Fritsch, Emmanuel, Proux, Olivier, Olivi, Luca, Ploquin, Florian, Morin, Guillaume (2017) Vertical changes of the Co and Mn speciation along a lateritic regolith developed on peridotites (New Caledonia) Geochimica et Cosmochimica Acta, 217. 1-15 doi:10.1016/j.gca.2017.07.010 | Journal (article/letter/editorial) | | Monchoux, 1991), Cuba (RoqueRosell et al., 2010) and Cameroon (Dzemua et al., 2013). However, selective chemical...knowledge, the effect of the weathering of these ultramafic rocks on the evolution of Co and Mn speciation...incised peneplain capped by an iron pan in the Goro region (Southern Province; Figure 1). A previous study...Mn/(Mn+Mg) is 0.17). 2.5.8. co-precipitated Mn-kerolite (Mn-Ker). In a polyethylene flask, 24.5 mL of...2010), Philippines (Fan and Gerson, 2011) and Cameroon (Yongue-Fouateu et al. 2006, Dzemua et al., 2013) |  | Domènech, Cristina, Villanova-de-Benavent, Cristina, Proenza, Joaquín A., Tauler, Esperança, Lara, Laura, Galí, Salvador, Soler, Josep M., Campeny, Marc, Ibañez-Insa, Jordi (2022) Co–Mn Mineralisations in the Ni Laterite Deposits of Loma Caribe (Dominican Republic) and Loma de Hierro (Venezuela) Minerals, 12 (8) 927 doi:10.3390/min12080927 | Journal (article/letter/editorial) | | magmatic Ni–Cu sulphide deposits hosted in mafic and ultramafic rocks, such as Sudbury (Canada) or Norilsk (Russia)...Indonesia, the Philippines, Brazil, Cameroon, Greece and the Caribbean region ([2,3,6] and references therein)...laterite deposits result from the weathering of ultramafic rocks (generally serpentinised peridotites) at...low grade, its irregular distribution, and the complex mineralogy of the ores, the Co-production from...in Australia, Goro in New Caledonia, or Nkamouna in Cameroon) [2]. However, recent studies have pointed |  | | Journal (article/letter/editorial) | | formed as a result of chemical weathering of ultramafic rocks (e.g. Freyssinet et al., 2005 and Butt...world's Ni resources are found in the Caribbean region, and the Falcondo deposit is one of the largest...minerals with the composition (Mg,Ni)3Si2O5(OH)4), kerolite-pimelite (invalid names for hydrated talc-like...measurements on minerals of the lizardite-népouite and kerolite-pimelite series indicate that the intracrystalline...subsequent loss of Mg. However, in the case of kerolite-pimelite the work suggests that Ni heterogeneity |  | Ito, Akane, Otake, Tsubasa, Maulana, Adi, Sanematsu, Kenzo, Sufriadin, , Sato, Tsutomu (2021) Geochemical constraints on the mobilization of Ni and critical metals in laterite deposits, Sulawesi, Indonesia: A mass‐balance approach. Resource Geology, 71 (3) 255-282 doi:10.1111/rge.12266 | Journal (article/letter/editorial) | | calculation, nickel laterite, supergene enrichment, ultramafic rock 1 | INTRODUCTION Nickel laterite deposits...by intensive chemical weathering of mafic to ultramafic rocks under tropical environments, account for...chemical weathering, meteoric waters interact with ultramafic rocks, leading to the dissolution of primary...It contains four lithotectonic belts from west to east: the West Sulawesi Plutono-Volcanic Arc Belt, the...the Central Sulawesi Metamorphic Belt, the East Sulawesi Ophiolite (ESO) Belt, and continental fragments |  | Dublet, Gabrielle, Juillot, Farid, Morin, Guillaume, Fritsch, Emmanuel, Fandeur, Dik, Ona-Nguema, Georges, Brown, Gordon E. (2012) Ni speciation in a New Caledonian lateritic regolith: A quantitative X-ray absorption spectroscopy investigation. Geochimica et Cosmochimica Acta, 95. 119-133 doi:10.1016/j.gca.2012.07.030 | Journal (article/letter/editorial) | | serpentine/kerolite-type phyllosilicates in the saprolite. In the Philippines (ophiolite complex on the Pujada...ordered Ni-rich talc-like phases (i.e. pimelite–kerolite series) in addition to Ni-rich serpentinelike... In addition, poorly ordered pimelite (Nirich kerolite) have been identified in Ni-rich garnierite veins...(Manceau and Calas, 1985). By synthesizing talc, kerolite, and trioctahedral smectites with various divalent...arsenic(V), iron(III) gels in the Carnoulès Acid Mine Drainage, France. A XANES, XRD, and SEM Study. Environ |
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