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Evolution of the Ovala gold deposit (Gabon) mineralization in the supergene weathering conditions of an equatorial environment; application to prospecting


, : Evolution of the Ovala gold deposit (Gabon) mineralization in the supergene weathering conditions of an equatorial environment; application to prospecting. Publication Occasionnelle - Centre International Pour la Formation et les Echanges Geologiques = Occasional Publication - International Center for Training and Exchanges in the Geosciences 22: 389-393


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Related references

Edou Minko E.; Colin F.; Azzibrouck G., 1990: Evolution de la mineralisation du gite aurifere d'Ovala (Gabon) dans les conditions d'alteration supergene en zone equatoriale; application a la prospection--The evolution of mineralization of the gold deposit in Ovala, (Gabon), in the supergene conditions of alteration in equatorial zone. Publication Occasionnelle Centre International Pour la Formation et les Echanges Geologiques = Occasional Publication International Center for Training and Exchanges in the Geosciences: ages 201. 1990.

Edou Minko A.; Colin F.; Lecomte P.; Trescases J.J., 1988: Gold distribution in the weathering profile above the Ovala gold mineralization, Gabon. Principaux Resultats Scientifiques - Bureau de Recherches Geologiques et Minieres 1988: 187-188

Minko, A.E.; Trescases, J.J., 1990: A weathering model in a humid equatorial region: development of weathering profiles on gneiss in Ovala (Gabon). A petrological study and calculations of geochemical balances for weathering profiles developed on a gneissic parent rock (quartz, andesine, muscovite) was conducted in Ovala (Gabon), leading to the proposal of a weathering model. The alteration m...

Minko A.E.ou; Colin F.; Trescases J.J.; Lecomte P., 1992: Lateritic alteration of the Ovala gold deposit, Gabon, and formation of a superficial dispersion anomaly. Mineralium Deposita 27(2): 90-100

Trescases J.J.; Edou Minko A.; Colin F.; Lecomte P., 1992: Superficial dispersion halo of primary gold mineralization in a lateritic equatorial environment in Gabon. Colloques et Seminaires - Institut de Recherche Scientifique pour le Developpement en Cooperation 1992: 315-317

Vasconcelos Paulo M.; Kyle J.R.chard, 1989: Supergene geochemistry and crystal morphology of gold in a semiarid weathering environment; application to gold exploration. Anais do Congresso Brasileiro de Geoquimica 2: 22-24

Edou Minko A.; Colin F.; Trescases J.J., 1995: Weathering of titanium minerals, ilmenite and rutile, and mobility of titanium in weathering profiles from Ovala area, Gabon. Journal of African Earth Sciences, and the Middle East: , Pages 313-318. 1995.

Weber F., 1973: Genesis and supergene evolution of the Precambrian sedimentary manganese deposit at Moanda (Gabon). Earth Science (Paris) = Sciences de la Terre (Paris) 9: 307-322

Lai Yong, 1995: Ore-forming conditions and the process of gold mineralization of Wendeng gold deposit, Shandong; application of cathodoluminescence in fluid inclusion studies. The Wendeng gold deposit is located 30 km northwest of Wendeng City, Shandong, occurring in a brecciated alteration zone in the foot wall of the NNE-striking fault. It consists of quartz, pyrite, specularite, potash feldspar, sericite, carbonates...

Rocha Erenaldo; Nasraoui Mohamed; Soubies Francois; Bilal Essaid; de Parseval Pierre, 2001: Geochemical evolution of pyrochlore during supergene weathering of the Catalao II Deposit. The crystallochemical evolution of pyrochlores in the course of the meteoric alteration has been followed, with classical techniques of mineralogical investigation (optical microscopy, SEM, electron microprobe SX50 CAMECA), on drilling and trenche...