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  • 1
    Keywords: Ore deposits ; Metallogenese
    Description / Table of Contents: Presents 13 papers on topical subjects in ore deposit research viewed in the context of Earth evolution
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (333 Seiten)
    ISBN: 9781862396265
    Series Statement: Geological Society special publication 393
    DDC: 553.1
    RVK:
    Language: English
    Note: Editors: G.R.T. Jenkin (University of Leicester, UK), P.A.J. Lusty (British Geological Survey, UK), I. McDonald (Cardiff University, UK), M.P. Smith (University of Brighton, UK), A.J. Boyce (Scottish Universities Environmental Research Centre, UK), J.J. Wilkinson (Natural History Museum and Imperial College London, UK) , Ore deposits in an evolving Earth : an introduction / G.R.T. Jenkin, P.A.J. Lusty, I. McDonald, M.P. Smith, A.J. Boyce, & J.J. WilkinsonTemporal relations between mineral deposits and global tectonic cycles / P.A. Cawood & C.J. Hawkesworth -- Crustal evolution, intra-cratonic architecture and the metallogeny of an Archaean craton / D.R. Mole, M.L. Fiorentini, K.F. Cassidy, C.L. Kirkland, N. Thebaud, T.C. McCuaig, M.P. Doublier, P. Duuring, S.S. Romano, R. Maas, E.A. Belousova, S.J. Barnes, & J. Miller -- A mineral system approach to iron ore in Archaean and Palaeoproterozoic BIF of western Australia / T. Angerer, P. Duuring, S.G. Hagemann, W. Thorne, & T.C. McCuaig -- The role of metamorphic fluids in the formation of ore deposits / B.W.D. Yardley & J.S. Cleverley -- The Massawa gold deposit, eastern Senegal, West Africa : an orogenic gold deposit sourced from magmatically derived fluids? / P.J. Treloar, D.M. Lawrence, D. Senghor, A. Boyce, & P. Harbridge -- Setting the stage for the genesis of the giant Bendigo ore system / S.W. Bull & R.R. Large -- Abundant sulphate in the Neoproterozoic ocean : implications of constant [delta]³⁴S of barite in the Aberfeldy SEDEX deposits, Scottish Dalradian / N.R. Moles, A.J. Boyce, & A.E. Fallick -- How the Neoproterozoic S-isotope record illuminates the genesis of vein gold systems : an example from the Dalradian Supergroup in Scotland / N.J. Hill, G.R.T. Jenkin, A.J. Boyce, C.J.S. Sangster, D.J. Catterall, D.A. Holwell, J. Naden, & C.M. Rice -- The immobilization of gold from gold (III) chloride by a halophilic sulphate-reducing bacterial consortium / J. Shuster, S. Marsden, L.C.W. MacLean, J. Ball, T. Bolin, & G. Southam -- Challenges to global mineral resource security and options for future supply / P.A.J. Lusty & A.G. Gunn -- Tectonic-diffusion estimates of global mineral resources : extending the methods : granitic tin deposits / S.E. Kesler & B.H. Wilkinson -- The criticality of metals : a perspective for geologists / T.E. Graedel & N.T. Nassar -- Future Rx : optimism, preparation, acceptance of risk / L.M. Cathles.
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  • 2
    Publication Date: 2021-02-08
    Description: The decarbonisation of our energy supply is reliant on new technologies that are raw material intensive and will require a significant increase in the production of metals to sustain them. Ferromanganese (FeMn) crusts are seafloor precipitates, enriched in metals such as cobalt and tellurium, both of which have a predicted future demand above current production rates. In this study, we investigate the texture and composition of FeMn crusts on Tropic Seamount, a typical Atlantic guyot off the coast of western Africa, as a basis for assessing the future mineral resource potential of Atlantic Seamounts. The majority of the summit is flat and covered by FeMn crusts with average thicknesses of 3–4 cm. The crusts are characterized by two dominant textures consisting of either massive pillared growth or more chaotic, cuspate sections of FeMn oxides, with an increased proportion of detrital and organic material. The Fe, Mn, and Co contents in the FeMn oxide layers are not affected by texture. However, detrital material and bioclasts can form about 50% of cuspate areas, and the dilution effect of this entrained material considerably reduces the Fe, Mn, and Co concentrations if the bulk samples are analyzed. Whilst Tropic Seamount meets many of the prerequisites for a crust mining area, the thickness of the crusts and their average metal composition means extraction is unlikely to be viable in the near future. The ability to exploit more difficult terrains or multiple, closely spaced edifices would make economic feasibility more likely.
    Type: Article , PeerReviewed
    Format: text
    Format: archive
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