 | | Journal (article/letter/editorial) | | nal Zoning througha Palcotransform Fault,Poum,New Caledonia MARC LEBLANC Geofluides-Bassins-Eau (CNRS...URA1767),Universitd Montpellier 2, 34095Montpellier, France Abstract The majormylonitic shearzoneof thenorthern...the Poum massif erallyaccepted thatharzburgite anddunitcarerefractory and (northern New Caledonia), the...discuss possible genetic relationships between chromite-gen1972;Dicket al,1984).Nevertheless, major(Kelemen...lished,petrological datafromthisNewCaledonian chromite thereis a pervasive magma-rock reactionprocess |  | | Journal (article/letter/editorial) | | comparison of the 15âŠ20âČN fracture zone and New Caledonia serpentinites Fiona Elizabeth Mothersole1 ·...cruise 209 were compared with serpentinites from New Caledonia. The ODP209 serpentinites were serpentinised...shallow hydrothermal seafloor setting. The New Caledonia serpentinites were serpentinised in a mantle...from the ODP209 serpentinites relative to the New Caledonia serpentinites. Given these observations, the...et al. 2006), and for serpentinites from the New Caledonia ophiolite (Rodgers 1974; Auge et al. 1999; Frost |  | Ulrich, Marc, Picard, Christian, Guillot, StĂ©phane, Chauvel, Catherine, Cluzel, Dominique, Meffre, SĂ©bastien (2010) Multiple melting stages and refertilization as indicators for ridge to subduction formation: The New Caledonia ophiolite. Lithos, 115 (1) 223-236 doi:10.1016/j.lithos.2009.12.011 | Journal (article/letter/editorial) | | indicators for ridge to subduction formation: The New Caledonia ophiolite Marc Ulrich a,b,â, Christian Picard...Grenoble, France UMR 6249 Chrono-environnement, UniversitĂ© de Franche ComtĂ©, 25000, Besançon, France d ARC...2009 Available online 6 January 2010 Keywords: New Caledonia Ophiolite Refertilization Peridotite Partial...element a b s t r a c t The origin of the New Caledonia ophiolite (South West PaciïŹc), one of the largest...lherzolites in the northernmost klippes was unclear. Our new major element and REE data on whole rocks, spinel |  | | Journal (article/letter/editorial) | | This article was downloaded by: [New York University] On: 09 June 2015, At: 01:58 Publisher: Taylor &... University de Montpellier II). Downloaded by [New York University] at 01:58 09 June 2015 From: "Les...Ophiolites can be an important source of chromite. Ophiolitic chromite deposits are very variable in distribution...characterized by a lherzolite mantle are barren, whereas chromite deposits are restricted to harzburgite ophiolites...kilometer below it. On the scale of a given massif, chromite deposits are larger and more numerous in mantle |  | | Journal (article/letter/editorial) | | PALEOTRANSFORM ROCK COMPOSITIONAL ZONING FAULT, POUM, NEW CALEDONIA--A THROUGH DISCUSSION JOHNMALPAS,PAULT...chromitites in theophiolite sheetofNew another. Caledonia. In thispaper,the authordescribes bothhighCr The...majorcomponent. Thus,crystallization of highCr chromite mantleintothe transformfault.It is nowrealize...1995,Chromititeandultramafic a palcotransform fault,Poum,NewCaledonia: ECONOMIC GEOLsphere, resulting ina...andMalpas,1995; Zhou,M.-F., andRobinson, podiform chromite deposits: ECONOMIC GEOLOGY, v. 92,p. 259-262. |  | Cassard, D., Nicolas, A., Rabinovitch, M., Moutte, J., Leblanc, M., Prinzhofer, A. (1981) Structural classification of chromite pods in southern New Caledonia. Economic Geology, 76 (4) 805-831 doi:10.2113/gsecongeo.76.4.805 | Journal (article/letter/editorial) | | Structural Classification of Chromite Pods in Southern New Caledonia D. CASSARD,A. NICOLAS, Laboratoirede...Tectonophqsique, Universitdde Nantes,44072 Nantes Cddex,France M. RABINOVITCH, Sociâątd Le Nickel, Noumea, Nouvelle-Calddonie...de Paris,Paris,France M. LEBLANC, Centre Ggologique et Gâąophqsique, Montpellier,France AND A. PRINZHOFER...EcoleNationaleSupdrieuredesMines de Paris,Paris,France Abstract A structuralclassification of podiform...podiform chromiteorebodiesfrom southernNew Caledonia resultsin a divisionof depositsinto three major types:discordant |  | | Journal (article/letter/editorial) | | 1995,Chromititeandultramafic a palcotransform fault,Poum,NewCaledonia: ECONOMIC GEOLsphere, resulting ina...andMalpas,1995; Zhou,M.-F., andRobinson, podiform chromite deposits: ECONOMIC GEOLOGY, v. 92,p. 259-262....PALEOTRANSFORM ROCK FAULT, COMPOSITIONAL POUM, NEW ZONING CALEDONIA--A THROUGH REPLY MARC LEBLANC G...(UMR5569CNRS),Universitd Monpellier 2, 34095Montpellier, France Sir: In a veryattractive discussion, Malpaset...geodynamic settings The caseof the smallPoum massif(New Caledonia)is of isa majorconcern in metalexploration. |  | | Journal (article/letter/editorial) | | (Zimbabwe)to the ophiolite-hostedMiocene depositsof New Caledonia. They provideindications of the evolvingear...diverseandof necessitythisbroadoverview 528 CHROMITE DEPOSITSTHROUGH TIME 529 is simplified,sothat...igneouscomplexesdependuponthe regionalstress, Chromite oresare usuallyclassedas either strati- modifiedby...The MashabaComplexes,Table 1). Layeredcomplexes chromite occurrence or idea from the voluminous lit- TABLE1...Mantle tectonites,Caribbean arc, arc-fore arc? New Caledonia Podiform,massif 4.2 Cuba Podiform 2.7 |  | | Journal (article/letter/editorial) | | Tectonophysique, 2 rue Itoussini&e, 44072 Nantes (France) Resubmitted May 9, 1985; revised version accepted...and dunites. For instance in the Belep-Poum massif of New Caledonia [8] and in the Canyon Mountain massif...Pozanti-Karsanti (Turkey), (7) Massif du Sud (New Caledonia), (8) Canyon Mountain (Oregon) (9) Trinity...neoblasts grain size chromite pods diabase occurrence serpentinization of New Caledonia [22,23], Canyon Mountain...Klamath Mountains [7,25-27], Piemont-Liguria in northern Italia ([28-30], and unpublished data), Corsica |  | GonzĂĄlez-JimĂ©nez, JosĂ© MarĂa, Griffin, William L., Proenza, JoaquĂn A., Gervilla, Fernando, O'Reilly, Suzanne Y., Akbulut, Mehmet, Pearson, Norman J., Arai, Shoji (2014) Chromitites in ophiolites: How, where, when, why? Part II. The crystallization of chromitites. Lithos, 189. 140-158 doi:10.1016/j.lithos.2013.09.008 | Journal (article/letter/editorial) | | relevant to the formation of concentrations of chromite in NU peridotites from ophiolitic (s.l.) sequences...for MA chromitite-genesis models that integrate new geochemical data with petrologic, field and microstructural...include major- and trace-element contents of ED chromite and coexisting phases and especially the nature...sulfides (BMS); the PGM data in PT particular provide new insights into chromitite formation. Differences in...generated through the disequilibrium precipitation of chromite, forced by small-scale mingling of melts that |  | Gervilla, F., Proenza, J.A., Frei, R., GonzĂĄlez-JimĂ©nez, J.M., Garrido, C.J., Melgarejo, J.C., Meibom, A., DĂaz-MartĂnez, R., Lavaut, W. (2005) Distribution of platinum-group elements and Os isotopes in chromite ores from MayarĂ-Baracoa Ophiolitic Belt (eastern Cuba) Contributions to Mineralogy and Petrology, 150 (6) 589-607 doi:10.1007/s00410-005-0039-2 | Journal (article/letter/editorial) | | of platinum-group elements and Os isotopes in chromite ores from MayarıÌ-Baracoa Ophiolitic Belt (eastern...ophiolitic belt in eastern Cuba hosts abundant chromite deposits of historical economic importance. Among...Among these deposits, the chemistry of chromite ore is very variable, ranging from high Al (Cr#=0.43â0...correlate negatively with the Pd/Ir ratio showing that chromite concentrates mainly Os, Ir and Ru which gives...increasing whole-rock PGE contents and Cr# of chromite. Furthermore, cOs values of all but one of the |  | GonzĂĄlez-JimĂ©nez, JosĂ©, Mondal, Sisir, Ghosh, Biswajit, Griffin, William, OâReilly, Suzanne (2020) Re-Os Isotope Systematics of Sulfides in Chromitites and Host Lherzolites of the Andaman Ophiolite, India. Minerals, 10 (8) 686 doi:10.3390/min10080686 | Journal (article/letter/editorial) | | arc. Major- and trace-element compositions of chromite indicate crystallization from melts akin to high-Mg...evolution of analyzed majortrace- elements of chromite from thegeological Andamanscenario. chromitites...as Re-Os isotopes in majorand traceelements of chromite Andaman chromitites means of Electron-Probe individual...PGMEPMA and BMS as(LA-ICP-MS) inclusions in as chromite chromitite and from host lherzolite, Micro Analyzer...formation of the BMS found asThe inclusions in chromite of chromitite from host lherzolite, The acquired |  | | Journal (article/letter/editorial) | | PlaceEugene Bataillon, 34095Montpellier Cedex05,France Abstract The Mayar/-Baracoa beltoccupies theeasternmost...theeast-west-trending Cubanophiolitic belt.It comprises twolarge,chromite-rich massifs: Mayarf-Cristal andMoa-Baracoa. Neitherof...andradiolarites. Chromite deposits canbe grouped intothreeminingdistricts according to thechemistry of chromite ore:...coexistingolivine.At Mayari,boththeCr no.andTiOâą.contentof chromite, andtheforsteritc contentof olivineincrease fromharzburgite...538ppbandshowa broadpositive correlation withCrâąO3percentof chromite. Thelattercorrelationisstrongest in theSagua deTSnamo |  | | Journal (article/letter/editorial) | | the Ultramafic Rocks of N e w Caledonia J. H. GUILLON, Paris, France L. J. LAWRENCE, K e n s i n g...Sydney, Australia The ultramafic rocks of New Caledonia contain a diversity o~ disseminated ore minerals...millerite and heazelwoodite most prominent. Several new or unusual mineralogical features are recorded. These...In the formation of the garnieritic ores of New Caledonia some of the nickel would appear to have been...Introduction T h e ultramafic rocks of N e w Caledonia comprise a sequence of hartzburgite, dunite and |  | Traore, D., Beauvais, A., Chabaux, F., Peiffert, C., Parisot, J.-C., Ambrosi, J.-P., Colin, F. (2008) Chemical and physical transfers in an ultramafic rock weathering profile: Part 1. Supergene dissolution of Pt-bearing chromite. American Mineralogist, 93 (1) 22-30 doi:10.2138/am.2008.2605 | Journal (article/letter/editorial) | | profile: Part 1. Supergene dissolution of Pt-bearing chromite Daouda TraorĂ©,1,2 Anicet Beauvais,1,2,* François...(IRD), UMR 161 CEREGE, BP A5, 98848 NoumĂ©a, New Caledonia Centre EuropĂ©en de Recherche et dâEnseignement...CĂ©zanne, BP 80, 13545 Aix en Provence Cedex 4, France 3 EOST-Centre de GĂ©ochimie de la Surface (CNRS/ULP)...Strasbourg Cedex, France 4 UMR G2R/CREGU, UniversitĂ© Henri PoincarĂ© 54506 Vandoeuvre-lĂšs-Nancy, France 2 Abstract...supergene dissolution processes of Pt-bearing chromite have been studied in a lateritic weathering profile |  | Iseppi, Marion, Sevin, Brice, Cluzel, Dominiue, Maurizot, Pierre, Bayon, Benjamin Le (2018) SUPERGENE NICKEL ORE DEPOSITS CONTROLLED BY GRAVITY-DRIVEN FAULTING AND SLOPE FAILURE, PERIDOTITE NAPPE, NEW CALEDONIA. Economic Geology, 113 (2) 531-544 doi:10.5382/econgeo.2018.4561 | Journal (article/letter/editorial) | | FAULTING AND SLOPE FAILURE, PERIDOTITE NAPPE, NEW CALEDONIA Marion Iseppi,1, 2,3,â Brice Sevin,2 Dominique...James Cook, NoumĂ©a 98800, New Caledonia 2 Geological Survey of New Caledonia, Department of Industry,...Mines, and Energy of New Caledonia (DIMENC), 1 ter Rue Unger, NoumĂ©a 98800, New Caledonia 3 French Geological...Avenue Claude Guillemin, OrlĂ©ans 45100, France Abstract New Caledonia holds one of the largest supergene...to Eocene obduction, the Peridotite Nappe of New Caledonia underwent several episodes of brittle fracture |  | | Journal (article/letter/editorial) | | Laboratoire de Tectonophysique, Universite de Nantes, France {Received 7 October 1981; in revisedform 31 May...(Prinzhofer & Nicolas, 1980) and the Poum and Belep Islands massifs in New Caledonia (Secher, 1981), the Table Mountain... A. NICOLAS AND M. JACKSON Bogata massif (New Caledonia) This part of the Massif du Sud is a 10 km thick...Boudinaged pyroxenite layer (dots) from Bogota (New Caledonia) (Prinzhofer & Nicolas, 1980). Oabbro veinlets...and structural reference system in Bogota (New Caledonia) (Prinzhofer & Nicolas, 1980). Same graphical |  | | Journal (article/letter/editorial) | | Mesozoic ophiolitic massifs contain typical podiform chromite deposits of high-Cr and high-Al varieties (Thayer...represent the same mantle, and the formation of the chromite deposits was a consequence of mixing of various...belt that extends for more than 1000 km in the northern part of Cuba 494 Downloaded by [Northeastern...the Mayari-Baracoa ophiolite belt and associated chromite deposits have been summarized by Proenza (1998...and diabase dikes. There are two large chromite deposits (Caledonia and Casimba) with more than 200,000 |  | GonzĂĄlez-JimĂ©nez, J.M., Proenza, J.A., Gervilla, F., Melgarejo, J.C., Blanco-Moreno, J.A., Ruiz-SĂĄnchez, R., Griffin, W.L. (2011) High-Cr and high-Al chromitites from the Sagua de TĂĄnamo district, MayarĂ-Cristal ophiolitic massif (eastern Cuba): Constraints on their origin from mineralogy and geochemistry of chromian spinel and platinum-group elements. Lithos, 125 (1) 101-121 doi:10.1016/j.lithos.2011.01.016 | Journal (article/letter/editorial) | | mining districts, according to the composition of chromite in the chromitite: (1) the MayarĂ district (high-Cr);...the MoaBaracoa district (back-arc basin). However, new geochemical (Marchesi et al., 2006, 2007; Proenza...(PGE). 2. Geological setting and chromitite The Northern Cuban Ophiolite Belt comprises a set of strongly...complexes that deïŹne a discontinuous WâE belt in northern Cuba (Fig. 1, inset). This Ophiolitic Belt is...spinel shows either no, or very thin, ferrian chromite alteration rims. The latter are exclusively associated |  | El Mendili, Yassine, Orberger, Beate, Chateigner, Daniel, Bardeau, Jean-François, Gascoin, StĂ©phanie, Petit, SĂ©bastien, Perez, Olivier (2022) Occurrence of SiC and Diamond Polytypes, Chromite and Uranophane in Breccia from Nickel Laterites (New Caledonia): Combined Analyses. Minerals, 12 (2) 196 doi:10.3390/min12020196 | Journal (article/letter/editorial) | | Diamond Polytypes, Chromite and Uranophane in Breccia from Nickel Laterites (New Caledonia): Combined Analyses...Diamond Polytypes, Chromite and Uranophane in Breccia from Nickel Laterites (New Caledonia): Combined Analyses...UniversitĂ©, 6 boulevard MarĂ©chal Juin, 14050 Caen, France; daniel.chateigner@ensicaen.fr (D.C.); stephanie...UniversitĂ©, 1 Rue Pierre et Marie Curie, 14610 Epron, France GEOPS, UniversitĂ© Paris Saclay-Paris Sud, UMR 8148...8148 (CNRS-UPS), BĂąt 504, 91405 Orsay, France; beate.orberger@universite-paris-saclay.fr IMMM, Le Mans |  | | Report (issue) | | Canada-----------------------4. Nickel districts in New Caledonia----------------------------------------------5...creased from three (Canada, New Caledonia (an overseas territory of France), and the Soviet Union) to...countries-Australia, Canada, Cuba, Indonesia, New Caledonia, South Africa, and the Soviet Union-accounted...Mines and Resources, 1984, p. 8). The addition of new production capacity in many parts of the world in...of Western World consumption. The introduction of new technology (solvent extraction and electrowinning) |  | Gonzalez-Jimenez, J. M., Auge, T., Gervilla, F., Bailly, L., Proenza, J. A., Griffin, W. L. (2011) MINERALOGY AND GEOCHEMISTRY OF PLATINUM-RICH CHROMITITES FROM THE MANTLE-CRUST TRANSITION ZONE AT OUEN ISLAND, NEW CALEDONIA OPHIOLITE. The Canadian Mineralogist, 49 (6) 1549-1569 doi:10.3749/canmin.49.6.1549 | Journal (article/letter/editorial) | | MANTLEâCRUST TRANSITION ZONE AT OUEN ISLAND, NEW CALEDONIA OPHIOLITE JosĂ© MarĂa GONZĂLEZ-JIMĂNEZ§ ARC Centre...Claude-Guillemin, B.P. 36009, Fâ45060 Orleans, France Fernando GERVILLA Departamento de MineralogĂa...Claude-Guillemin, B.P. 36009, Fâ45060 OrlĂ©ans, France Joaquin A. PROENZA Departament de Cristal·lografia...plagioclase-bearing wehrlite on Ouen Island, southern New Caledonia. The primary chromian spinel is Al-rich, with...found in the mantle and crust sequences of the New Caledonia ophiolite complex. The distribution, morphology |  | Proenza, J., Gervilla, F., Melgarejo, J., Vera, O., Alfonso, P., Fallick, A. (2001) Genesis of sulfide-rich chromite ores by the interaction between chromitite and pegmatitic olivineânorite dikes in the PotosĂ Mine (Moa-Baracoa ophiolitic massif, eastern Cuba) Mineralium Deposita, 36 (7) 658-669 doi:10.1007/s001260100193 | Journal (article/letter/editorial) | | Alfonso ĂĄ A. Fallick Genesis of sulÂźde-rich chromite ores by the interaction between chromitite and...easternmost part of the Cuban Ophiolitic Belt. Chromite mineralization occurs within the mantle±crust...dikes. SulÂźde-poor chromite ores, brecciated chromite ores, and sulÂźde-rich chromite ores can be distinguished...massif. Brecciated chromite ores occur within pegmatitic gabbro dikes. In this type, chromite crystals occur...associated to the contacts between sulÂźde-poor chromite and pegmatitic olivine± norite dikes. These ores |  | Frei, R., Gervilla, F., Meibom, A., Proenza, J.A., Garrido, C.J. (2006) Os isotope heterogeneity of the upper mantle: Evidence from the MayarĂâBaracoa ophiolite belt in eastern Cuba. Earth and Planetary Science Letters, 241 (3) 466-476 doi:10.1016/j.epsl.2005.11.043 | Journal (article/letter/editorial) | | portion of the upper mantle, 27 chromite separates from the 90 My old chromite deposits in the MayarıÌâBaracoa...heterogeneity. The initial 187Os/188Os ratios vary with chromite chemistry and with geographical distribution,...groups. In the Moaâ Baracoa district, where the chromite bodies are located in the mantleâcrust transition...= 13). In the Sagua de Tanamo district, where chromite chemistry is highly variable and their location...80 (n = 7). In the MayarÄ±Ì district, where the chromite bodies are located in the lower part of the mantle |  | | Journal (article/letter/editorial) | | focusing on serpentine soils collected from New Caledonia, Oregon, and California. Overall, serpentine...reported as high as 6 wt% in New Caledonia, Cr values in New Caledonia, Oregon, and California serpentine...solids; however, Cr(VI) has been identified in New Caledonia and California serpentine soil solutions at...related to the presence of Cr-spinels, specifically chromite and Cr-magnetite. These phases are resistant to...of Cr in serpentine soils and the weathering of chromite have not been fully addressed using an integrative |
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