| Reference Type | Journal (article/letter/editorial) |
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| Title | Mineralogy of Cobalt-Rich Ferromanganese Crusts from the Perth Abyssal Plain (E Indian Ocean) |
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| Journal | Minerals |
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| Authors | Maciąg, Łukasz | Author |
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| Zawadzki, Dominik | Author |
| Kozub-Budzyń, Gabriela A. | Author |
| Piestrzyński, Adam | Author |
| Kotliński, Ryszard A. | Author |
| Wróbel, Rafał J. | Author |
| Year | 2019 (January 29) | Volume | 9 |
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| Page(s) | 84 | Issue | 2 |
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| Publisher | MDPI AG |
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| URL | |
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| Download URL | https://www.mdpi.com/2075-163X/9/2/84/pdf?version=1548821039 |
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| DOI | doi:10.3390/min9020084Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 7735751 | Long-form Identifier | mindat:1:5:7735751:5 |
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| GUID | 0 |
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| Full Reference | Maciąg, Łukasz; Zawadzki, Dominik; Kozub-Budzyń, Gabriela A.; Piestrzyński, Adam; Kotliński, Ryszard A.; Wróbel, Rafał J. (2019) Mineralogy of Cobalt-Rich Ferromanganese Crusts from the Perth Abyssal Plain (E Indian Ocean). Minerals, 9 (2). 84 doi:10.3390/min9020084 |
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| Plain Text | Maciąg, Łukasz; Zawadzki, Dominik; Kozub-Budzyń, Gabriela A.; Piestrzyński, Adam; Kotliński, Ryszard A.; Wróbel, Rafał J. (2019) Mineralogy of Cobalt-Rich Ferromanganese Crusts from the Perth Abyssal Plain (E Indian Ocean). Minerals, 9 (2). 84 doi:10.3390/min9020084 |
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| In | (2019, January) Minerals Vol. 9 (2) MDPI AG |
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| Abstract/Notes | Mineralogy of phosphatized and zeolitized hydrogenous cobalt-rich ferromanganese crusts from Dirck Hartog Ridge (DHR), the Perth Abyssal Plain (PAP), formed on an altered basaltic substrate, is described. Detail studies of crusts were conducted using optical transmitted light microscopy, X-ray Powder Diffraction (XRD) and Energy Dispersive X-ray Fluorescence (EDXRF), Differential Thermal Analysis (DTA) and Electron Probe Microanalysis (EPMA). The major Fe-Mn mineral phases that form DHR crusts are low-crystalline vernadite, asbolane and a feroxyhyte-ferrihydrite mixture. Accessory minerals are Ca-hydroxyapatite, zeolites (Na-phillipsite, chabazite, heulandite-clinoptilolite), glauconite and several clay minerals (Fe-smectite, nontronite, celadonite) are identified in the basalt-crust border zone. The highest Ni, Cu and Co contents are observed in asbolane and Mn-(Fe) vernadite. There is significant enrichment of Ti in feroxyhyte−ferrihydrite and vernadite. The highest rare earth element (REE) content is measured in the phosphate minerals, less in phyllosilicates and Na-phillipsite. The geochemical composition of minerals in the DHR crusts supports the formation of crusts by initial alteration, phosphatization and zeolitization of the substrate basalts followed by oscillatory Fe-Mn oxyhydroxides precipitation of hydrogenous vernadite (oxic conditions) and diagenous asbolane (suboxic conditions). |
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