 | | Journal (article/letter/editorial) | | Petrography, Mineralogy, and Geochemistry of the Nkamouna Serpentinite: Implications for the Formation of...the Cobalt-Manganese Laterite Deposit, Southeast Cameroon GIDEON LAMBIV DZEMUA† AND SARAH A. GLEESON Department...The Nkamouna Co-Mn-Ni laterite is an advanced exploration project located in southeast Cameroon. The...The deposit comprises a deep and complex laterite profile with high Co (~0.25 wt %) and Mn (1.33 wt %) contents...grade and a Ni:Co ratio of less than 3. This makes Nkamouna an unusual type of laterite deposit as it will |  | 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...secondary silica has been observed in the form of chalcedony or quartz (Butt and Cluzel 2013). In the model...sorbs onto goethite surface forming the surface complex >Fe_ONi+. These authors used a log K for goethite |  | | 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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