T. Augé, Chromite et minéraux du groupe du platine dans les complexes ophiolitiques, p.347, 1985.

T. Augé and P. Maurizot, Stratiform and alluvial platinum mineralization in the New 349, 1995.

A. Beauvais and F. Colin, Formation and transformation processes of iron duricrust systems in tropical humid environment, Chemical Geology, vol.106, issue.1-2, pp.77-101, 1993.
DOI : 10.1016/0009-2541(93)90167-H

A. Beauvais and C. Roquin, Petrological differentiation patterns and geomorphic distribution of ferricretes in Central Africa, Geoderma, vol.73, issue.1-2, pp.63-82, 1996.
DOI : 10.1016/0016-7061(96)00041-9

T. Becquer, C. Quantin, M. Sicot, and J. P. Boudot, Chromium availability in ultramafic soils from New Caledonia, Science of The Total Environment, vol.301, issue.1-3, pp.251-261, 2003.
DOI : 10.1016/S0048-9697(02)00298-X

F. Besset, Localisation et répartitions successives du nickel au cours de l'altération 359, 1980.

G. H. Brimhall, D. , and W. E. , Constitutive mass-balance relations between 363 chemical composition, volume, density, porosity and strain in metasomatic hydrochemical 364 systems: results on weathering and pedogenesis, Geochimica et Cosmochimica Acta, vol.51, pp.365-567, 1986.

R. G. Burns, The uptake of cobalt into ferromanganese nodules, soils, and synthetic manganese (IV) oxides, Geochimica et Cosmochimica Acta, vol.40, issue.1, pp.95-102, 1976.
DOI : 10.1016/0016-7037(76)90197-6

F. Colin, D. Nahon, J. J. Trescases, and A. J. Melfi, Lateritic weathering of 374 pyroxenites at Niquelandia, Goias, Brazil: The supergène behavior of nickel, pp.1010-1023, 1990.

F. Colin, P. Veillard, A. , and J. P. , Quantitative approach to physical and 377 chemical gold mobility in equatorial rainforest lateritic environment, Earth and Planetary, vol.378, 1993.
DOI : 10.1016/0012-821x(93)90030-d
URL : http://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_45-46/010009164.pdf

J. S. Compton, R. A. White, and M. Smith, Rare earth element behavior in soils and 380 salt pan sediments of a semi-arid granitic terrain in the Western Cape, p.381, 2003.

G. R. Cooper, Oxidation and toxicity of chromium in ultramafic soils in Zimbabwe, Applied Geochemistry, vol.17, issue.8, p.383, 2002.
DOI : 10.1016/S0883-2927(02)00014-8

J. J. Cramer and H. W. Nesbitt, Mass-balance relations and trace element mobility 385 during continental weathering of various igneous rocks, pp.63-73, 1983.

R. Eggleton, C. Foudoulis, and D. Varkevisser, Weathering of Basalt: Changes in Rock Chemistry and Mineralogy, Clays and Clay Minerals, vol.35, issue.3, pp.161-169, 1987.
DOI : 10.1346/CCMN.1987.0350301

M. Elias, M. J. Donaldson, and N. Giorgetta, Geology, mineralogy, and chemistry of 390 lateritic nickel-cobalt deposits near Kalgoorlie, Western Australia, Economic Geology Institution of Mining and Metallurgy, vol.76103, issue.391, pp.1775-1783, 1981.

S. E. Fendorf, Surface reactions of chromium in soils and waters, Geoderma, vol.67, issue.1-2, pp.55-71, 1995.
DOI : 10.1016/0016-7061(94)00062-F

. Murrin, Ouest Australie) Ph D, 236 p, p.398

J. P. Golightly, Geology of Soroako nickeliferous laterite deposits, AIME International, p.399, 1979.

J. P. Golightly, Nickeliferous laterite deposits, 75th Anniversary 401, pp.710-735, 1981.

R. L. Gresens, Composition-volume relationships of metasomatism, Chemical Geology, vol.2, pp.47-65, 1967.
DOI : 10.1016/0009-2541(67)90004-6

J. H. Guillon, Les Massifs péridotitiques de Nouvelle-Calédonie: type d'appareil 405, 1975.

R. C. Harris, A. , and J. A. , Geochemical and mineralogical studies on the weathering of granitic rocks, American Journal of Science, vol.264, issue.2, pp.146-173, 1966.
DOI : 10.2475/ajs.264.2.146

M. R. Islam, V. Peuraniemi, R. Aario, and S. Rojstaczer, Geochemistry and mineralogy of saprolite in Finnish Lapland, Applied Geochemistry, vol.17, issue.7, pp.885-902, 2002.
DOI : 10.1016/S0883-2927(02)00016-1

K. B. Krauskopf, Introduction to Geochemistry, 1979.

M. Latham, Altération et pédogenèse sur roches ultrabasiques en Nouvelle- 412, 1986.

M. Leblanc, Chromitite and ultramafic rock compositional zoning through a paleotransform fault, Poum, New Caledonia, Economic Geology, vol.90, issue.7, pp.2028-2039, 1995.
DOI : 10.2113/gsecongeo.90.7.2028

S. Llorca, Metallogeny of supergene cobalt mineralization, 1993.

S. Llorca and P. Monchoux, Supergene cobalt minerals from New Caledonia, p.421, 1991.
DOI : 10.1080/08120099308728089

A. Manceau, C. , and L. , X-ray absorption spectroscopic study of the sorption of 423, 1992.

A. Manceau, S. Llorca, C. , and G. , Crystal chemistry of cobalt and nickel in 426 lithiophorite and asbolane from New Caledonia, Geochimica et Cosmochimica Acta, vol.51, pp.427-105, 1987.

. Mn, . Co, and Z. Zn, Ti, and REEs during the evolution of lateritic covers above ultramafic 430 complexes, Journal of Geochemical Exploration, vol.40, pp.361-383

R. M. Mckenzie, Manganese oxides and hydroxides, p.432, 1977.

. Eds, Minerals in Soil Environments, pp.181-193

G. Millot and M. Bonifas, Transformations isovolumiques dans les phénomènes de 434 latéritisation et de bauxitisation, 1955.

D. Nahon, Introduction to the Petrology of Soils and Chemical Weathering, 1991.

. D. Nahon, Evolution of iron crusts in tropical landscapes, Rates of Chemical Weathering of Rocks and Minerals, pp.169-187, 1986.

T. Oberthür, T. W. Weiser, and L. Gast, Geochemistry and mineralogy of platinum-group elements at Hartley Platinum Mine, Zimbabwe, Mineralium Deposita, vol.30, issue.3, pp.344-355, 2003.
DOI : 10.1007/s00126-002-0338-8

J. P. Paris, Géologie de la Nouvelle-Calédonie: un essai de synthèse, Mémoire BRGM, vol.448, issue.278, 1981.

G. Pedro, Distribution des principaux type d'altération chimique à la surface du globe, p.450, 1968.

K. D. Phan and P. Routhier, Altération météorique de chromite de Nouvelle- 453, 1964.

. Calédonie, Etude à la microsonde électronique. Contribution à la géochimie supergène du 454

M. H. Prichard and R. A. Lord, Evidence for differential mobility of platinum-group 457 elements in the secondary environnement in Shetland ophiolite complex. Transactions of 458 the Institution of Mining and Metallurgy, pp.79-459, 1994.

C. Reimann and P. D. De-caritat, Chemical elements in the environment. Factsheets 461 for the geochemist and environmental scientist, p.462, 1998.

W. Schellmann, Behavior of nickel, cobalt, and chromium in ferruginous lateritic 463 nickel ores, Bulletin BRGM, vol.2, pp.275-282, 1978.

W. Schellmann, Formation of nickel silicate ores by weathering of ultramafic rocks, p.465, 1981.

J. J. Trescases, L'évolution géochimique supergène des roches ultrabasiques en zone 474 tropicale: formation des gisements nickélifères de Nouvelle-Calédonie, pp.280-476, 1975.

C. A. Varajao, F. Colin, P. Vieillard, A. J. Melfi, and D. Nahon, Early Weathering 477 of palladium gold under lateritic conditions, Maquine Mine, 2000.

H. E. Zeissink, The mineralogy and geochemistry of a nickeliferous laterite profile 480 (Greenvale, Queensland, Australia) Mineralium Deposita, pp.132-152, 1969.