 | | Journal (article/letter/editorial) | | Developed on Gabbro in a Semi-Arid Zone, Northern Cameroon Désiré Tsozué 1, * and Paul-Désiré Ndjigui 2 1...Sciences, University of Maroua, P.O. Box 814, Maroua, Cameroon Department of Earth Sciences, University of Yaoundé...Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon; lndjigui@yahoo.fr Correspondence: tsozudsir@yahoo.fr or desire...developed on gabbro in the semi-arid zone (Northern Cameroon), using mineralogical and geochemical analyses...geochemistry; mass balance; semi-arid zone; Northern Cameroon 1. Introduction Many works have been done on |  | Yongue–Fouateu, R., Yemefack, M., Wouatong, A. S. L., Ndjigui, P. D., Bilong, P. (2009) Contrasted mineralogical composition of the laterite cover on serpentinites of Nkamouna-Kongo, southeast Cameroon. Clay Minerals, 44 (2) 221-237 doi:10.1180/claymin.2009.044.2.221 | Journal (article/letter/editorial) | | laterite cover on serpentinites of Nkamouna-Kongo, southeast Cameroon R. YONGUE FOUATEU1,*, M. YEMEFACK2...University of Yaoundé I, PO Box 812 Yaoundé, Cameroon, Institute of Agricultural Research for Development...Development (IRAD), PO Box 2067 Yaoundé, Cameroon, 3 Department of Earth Sciences, Faculty of Science, University...University of Dschang , PO Box 67, Dschang, Cameroon, 4 Department of Earth Sciences, Faculty of Science...Science, University of Douala, PO Box 24157 Douala, Cameroon 2 (Received 11 November 2007; revised 17 December |  | | Report (issue) | | Its presence may indicate significant mafic-ultramafic rocks in the local basement. The balance of primary...arc and rift environments associated with mafic-ultramafic rocks. Metasedimentary cobalt-copper-gold deposits...these deposit types show direct links to mafic-ultramafic rocks; the deposits may result from crustal-scale...depths. Hydrothermal deposits associated with ultramafic rocks, typified by the Bou Azzer district of...Archean and Proterozoic rocks of the Midwest and the east coast (Pennsylvania) and younger mafic rocks in |  | | Report (issue) | | .pdf. Cover. Underground photo of the Skuterud Mine in Norway showing pink secondary erythrite (a hydrated.......................................F13 Typical Mine Life.......................................................................................F15 Ultramafic Igneous Rocks..............................................................................F16 Mine Waste Characteristics.........................................................................F18 Mine Closure........................................ |  | | Journal (article/letter/editorial) | | mantle sequence (the Semail ophiolite) onto the East Arabian margin during the late Cretaceous. The laterites... Ni concentrations average 0.63% (Ibra), 0.72% (East Ibra), 0.67% (Al-Russayl), and 0.33% (Tiwi). Other...Al-Khirbash (2015) concluding that the Ibra and East Ibra laterites are of the silicate type, while that...(1998). To attain a better understanding of the complex processes involved in laterite formation and the...study belonged to four separate areas, namely Ibra, East Ibra, Tiwi, and Al-Russayl. The Ibra profile is located |  | Economou-Eliopoulos, Maria, Laskou, Magdalena, Eliopoulos, Demetrios, Megremi, Ifigeneia, Kalatha, Sofia, Eliopoulos, George (2021) Origin of Critical Metals in Fe–Ni Laterites from the Balkan Peninsula: Opportunities and Environmental Risk. Minerals, 11 (9) 1009 doi:10.3390/min11091009 | Journal (article/letter/editorial) | | water leachates for laterite samples, altered ultramafic rocks and soils neighboring the mining areas...laterites developed by chemical weathering of ultramafic rocks with potential post redeposition enrichment...weathering/alteration of laterite deposits and parent ultramafic rocks, mining, and large volumes of smelting...mainly related to the extensive lateritization of ultramafic ophiolites in the Balkan Peninsula (Shebenik–Pogradec...Upper Jurassic–Lower Cretaceous serpentinized ultramafic ophiolites, may be partially preserved in situ |  | Domènech, Cristina, Galí, Salvador, Villanova-de-Benavent, Cristina, Soler, Josep M., Proenza, Joaquín A. (2017) Reactive transport model of the formation of oxide-type Ni-laterite profiles (Punta Gorda, Moa Bay, Cuba) Mineralium Deposita, 52 (7) 993-1010 doi:10.1007/s00126-017-0713-0 | Journal (article/letter/editorial) | | from the chemical and mechanical weathering of ultramafic rocks exposed to the surface under favorable...(a) partially or totally 994 serpentinized ultramafic rock (protolith) characterized by unweathered...interaction of slightly acidic meteoric water with the ultramafic bedrock causes the release of Mg, Si, and Ni...sorbs onto goethite surface forming the surface complex >Fe_ONi+. These authors used a log K for goethite...geochemical modeling of unsaturated zone in a tropical region in Urânia, Sao Paulo state, Brazil. J Hydrol 329:49–62 |  | 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) | | in the saprolite. In the Philippines (ophiolite complex on the Pujada Peninsula), the recent EXAFS study...Neoformation of Ni phyllosilicate upon Ni uptake on montmorillonite: a kinetics study by powder and polarized extended...arsenic(V), iron(III) gels in the Carnoulès Acid Mine Drainage, France. A XANES, XRD, and SEM Study. Environ...(1999) Quantitative speciation of lead in selected mine tailings from Leadville, CO. Environ. Sci. Technol...laterite cover on serpentinites of Nkamouna Kongo, southeast Cameroon. Clay Miner. 44(2), 221–237. Associate |  | | Report (issue) | | .B3 Graph showing dates associated with all the mine sites on the U.S. Environmental Protection Agency’s...production, U.S. apparent consumption, and U.S. mine production of antimony from 1900 to 2012............................F2 Graph showing world cobalt mine and refinery production and apparent consumption.....................F2 Graph showing world cobalt mine production from 1950 to 2011......................F4. Pie chart showing percentage of world cobalt mine production in 2011, by country................. |
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