 | | Journal (article/letter/editorial) | | Co-rich Mn Crusts at Afanasiy-Nikitin Seamount (AFS) in the Equatorial S Indian Ocean Geoffrey P. Glasby...Co-rich Mn crusts from the Afanasiy-Nikitin Seamount in the Equatorial S Indian Ocean, Mn, Fe and Co are enriched...elements from seawater. Keywords: Afanasiy-Nikitin Seamount, Co-rich manganese crust, enrichment factor, platinum...crusts from the Afanasiy-Nikitin Seamount which is located in the Equatorial S Indian Ocean at 3Ā°S 83Ā°E....component. 2. Enrichment of elements in Co-rich manganese crusts Adsorption of elements from seawater is |  | Glasby, Geoffrey P., Mountain, Bruce, Vineesh, Theckethottathil C., Banakar, Virupaxa, Rajani, Ramesh, Ren, Xiangwen (2010) Role of Hydrology in the Formation of Co-rich Mn Crusts from the Equatorial N Pacific, Equatorial S Indian Ocean and the NE Atlantic Ocean. Resource Geology, 60 (2) 165-177 doi:10.1111/j.1751-3928.2010.00123.x | Journal (article/letter/editorial) | | Equatorial N Paciļ¬c, Equatorial S Indian Ocean and the NE Atlantic Ocean Geoffrey P. Glasby,1 Bruce Mountain...crusts from four different locations of the world ocean have been studied to understand the role of dissolved...the formation of Co-rich Mn crusts. WOCE (World Ocean Circulation Experiment) oxygen proļ¬les of modern...Equatorial North Paciļ¬c Ocean, Equatorial South Indian Ocean and the North East Atlantic Ocean have been evaluated...range 800ā900 m in these regions. The age of the ocean crust on which seamounts formed is in the range |  | | Journal (article/letter/editorial) | | crystal chemistry of Ni in two hydrogenetic Pacific ocean ferromanganese crust samples and a hydrogenetic...spectrometry shows that Ni is associated with the manganese oxide phases, in agreement with previous work...Mn3+/4+ and Fe3+ (hydr)oxides (e.g., Goldberg 1954). Chemical analyses of Pacific Ocean ferromanganese nodules...studies have also shown a Ni-Mn association in Indian and Atlantic nodules (Moorby and Cronan 1981),...Halbach 1995; Koschinsky and Hein 2003). Nickel-manganese spatial correlations have also been found with |  | | Journal (article/letter/editorial) | | FeāMn Crust and Nodules from the Southern Atlantic Ocean Evgeniya D. Berezhnaya 1, *, Alexander V. Dubinin...deposits from the southern part of the Atlantic Ocean has been studied. The presented samples were the...nodules; platinum group elements; gold; Atlantic Ocean 1. Introduction Ferromanganese crusts and nodules...be the most important resource of metals in the ocean; mining of these deposits has been widely discussed...seawater. In diagenetic nodules, the source of manganese, iron, and the minor elements is an accretion |  | Marino, E., GonzĆ”lez, F.J., Somoza, L., Lunar, R., Ortega, L., VĆ”zquez, J.T., Reyes, J., Bellido, E. (2017) Strategic and rare elements in Cretaceous-Cenozoic cobalt-rich ferromanganese crusts from seamounts in the Canary Island Seamount Province (northeastern tropical Atlantic) Ore Geology Reviews, 87. 41-61 doi:10.1016/j.oregeorev.2016.10.005 | Journal (article/letter/editorial) | | ferromanganese crusts from seamounts in the Canary Island Seamount Province (northeastern tropical Atlantic) E. Marino...ferromanganese crusts from seamounts in the Canary Island Seamount Province (northeastern tropical Atlantic), Ore...ferromanganese crusts from seamounts in the Canary Island Seamount Province (Northeastern tropical Atlantic) T ...Echo and Drago) at the southern Canary Island Seamount Province (CISP) in the Northeastern tropical Atlantic...likely the oldest hotspot track in the Atlantic Ocean, and is the most long-lived of known hotspots globally |  | | Journal (article/letter/editorial) | | predominantly of vernadite (Ī“āMnO2) and amorphous Fe oxides/hydroxides. The nodules also contain minor todorokite... Introduction Marine FeāMn deposits are FeāMn oxides/hydroxides that accumulate by chemical and sedimentary...2016). IronāMn crusts and nodules in the Pacific Ocean have been studied extensively, especially those...FeāMn crusts and nodules from the Atlantic and Indian oceans have also been studied in detail (e.g.,...seamounts in the central deepāsea basin, and the Pearl seamount in the southern of South China Sea (Yao, 1998) |  | | Journal (article/letter/editorial) | | species in different valence states with iron and manganese oxyhydroxides under oceanic conditions and experimentally...(II) and platinum (IV) on synthetic iron and manganese oxyhydroxides and natural materials (marine colloids...from the floor and seamounts of the Pacific and Indian oceans have attracted much atten tion owing to...resources of iron and manganese on continents [1]. In addition to iron and manganese, oceanic ferromanganese...and mechanisms of interaction with iron and manganese oxides, forms of platinum occurrence in sediments |  | Surya Prakash, L., Ray, Durbar, Paropkari, Anil L., Mudholkar, Abhay V., Satyanarayanan, M., Sreenivas, B., Chandrasekharam, D., Kota, Dalayya, Kamesh Raju, K.A., Kaisary, Sujata, Balaram, V., Gurav, Tripti (2012) Distribution of REEs and yttrium among major geochemical phases of marine FeāMn-oxides: Comparative study between hydrogenous and hydrothermal deposits. Chemical Geology, 312. 127-137 doi:10.1016/j.chemgeo.2012.03.024 | Journal (article/letter/editorial) | | among major geochemical phases of marine FeāMn-oxides: Comparative study between hydrogenous and hydrothermal...Institute, Uppal Road, Hyderabad-500007, India Indian Institute of Technology, Powai, Mumbai-400076,...Mineralogy and geochemistry of the ferromanganese oxides collected from two seamounts in the Andaman Sea...compositions indicate that the oxides from a volcanic cratered seamount, CSM, are hydrothermal while those...those from another seamount, SM2, are hydrogenous in origin. The distributions of REEs and yttrium in |  | | Journal (article/letter/editorial) | | sorption onto Mn(III, IV) oxides (such as birnessite and Ī“-MnO2) and Fe (hydr)oxides (such as goethite, Ī±-FeOOH)...Ī±-FeOOH). Sorption of Ni(II) to Mn oxides controls the release of Ni during pyrite oxidation ā Corresponding...(Larsen and Postma, 1997) while sorption to Fe (hydr) oxides retards its mobility during the chemical weathering...most divalent cations adsorb to iron and manganese (hydr)oxides by forming bidentate and tridentate surface...Ni(II) adsorption on Mn oxides. The crystal chemistry of Ni in some natural Mn oxides has, however, been investigated |  | | Journal (article/letter/editorial) | | phases in which the inorganic precipitation of oxides prevailed together with the ļ¬ne sedimentation....the Reclot unit develops a thin crust rich in Fe-oxides. These structures show the presence of a discontinuity...member has a hardground with a lamina rich in Fe oxides. These structures and materials show the stratigraphic...orthoclase, periclase, wollastonite and synthetic oxides (Al2O3, Fe2O3 and MnTiO3). Owing to the ļ¬ne grain...ratio of Fe oxides decreases towards the bottom, so that gradually the presence of oxides is only recognized |  | | Report (issue) | | titanium 47.88 vanadium 50.94 chromium 52.00 manganese 54.94 iron 55.85 cobalt 58.93 nickel 58.69........................F15 Ancient Cobalt-Rich Manganese Deposits........................................ viii Abbreviations and Symbols Ī“-MnO2 delta-manganese dioxide ĀµCi/mL microcurie per milliliter Āµg/g...secondary stratiform sediment-hosted Cu-Co sulfides and oxides, and secondary Ni-Co laterites. Seven additional...having formed by the precipitation of iron and manganese oxyhydroxide phases from seawater and pore fluids |  | | Report (issue) | | titanium 47.88 vanadium 50.94 chromium 52.00 manganese 54.94 iron 55.85 cobalt 58.93 nickel 58.69...C), hafnium (Hf), indium (In), lithium (Li), manganese (Mn), niobium (Nb), platinum-group elements (PGE)...number of these commoditiesāfor example, graphite, manganese, niobium, and tantalumāthe United States is currently................................. K1 Chapter L. Manganese By William F. Cannon, Bryn E. Kimball, and Lisa...consumption, and distribution of production of manganese ore from 2007 to 2011........................ |
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