Unusual Ore Mineralization of Siliceous Rocks in the Southern Kambalny Central Thermal Field (Kamchatka).
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| Title: | Unusual Ore Mineralization of Siliceous Rocks in the Southern Kambalny Central Thermal Field (Kamchatka). |
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| Authors: | Palyanova, G. A.1 (AUTHOR) palyan@igm.nsc.ru, Rychagov, S. N.2 (AUTHOR), Svetova, E. N.3 (AUTHOR), Moroz, T. N.1 (AUTHOR), Seryotkin, Yu. V.1 (AUTHOR), Sandimirova, E. I.2 (AUTHOR), Bortnikov, N. S.4 (AUTHOR) |
| Source: | Doklady Earth Sciences. Nov2024, Vol. 519 Issue 1, p1868-1876. 9p. |
| Subjects: | Siliceous rocks, X-ray microanalysis, Microscopy, Scanning electron microscopy, Raman spectroscopy, Goethite, Rare earth oxides |
| Abstract: | Samples of siliceous rocks of the Southern Kambalny Central Thermal Field (SKC) containing a unique ore mineralization were studied. Optical microscopy, scanning electron microscopy, X-ray microanalysis, X-ray diffraction, ICP-MS, and Raman spectroscopy were used in this study. High concentrations and a wide range of rare and rare-earth elements were found in siliceous rocks. Silicates (quartz, moganite, and opal-crystobalite/tridymite opal), oxides (hematite and anatase), hydroxides (goethite), carbonates (calcite with Fe and Mn impurities), sulfates (barite with Sr impurity and gypsum), sulfides (pyrite, marcasite, chalcopyrite, and chalcocite), phosphates (xenotime-Y, YPO4 with impurities of lanthanides, S, Ca, and As; berlinite, AlPO4 with the V impurity), and apatite were identified. Structures of anatase replacement by quartz often in association with pyrite were identified. The mineralization of SKC siliceous rocks reflects the physicochemical specificity of deep metal-bearing solutions. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Samples of siliceous rocks of the Southern Kambalny Central Thermal Field (SKC) containing a unique ore mineralization were studied. Optical microscopy, scanning electron microscopy, X-ray microanalysis, X-ray diffraction, ICP-MS, and Raman spectroscopy were used in this study. High concentrations and a wide range of rare and rare-earth elements were found in siliceous rocks. Silicates (quartz, moganite, and opal-crystobalite/tridymite opal), oxides (hematite and anatase), hydroxides (goethite), carbonates (calcite with Fe and Mn impurities), sulfates (barite with Sr impurity and gypsum), sulfides (pyrite, marcasite, chalcopyrite, and chalcocite), phosphates (xenotime-Y, YPO4 with impurities of lanthanides, S, Ca, and As; berlinite, AlPO4 with the V impurity), and apatite were identified. Structures of anatase replacement by quartz often in association with pyrite were identified. The mineralization of SKC siliceous rocks reflects the physicochemical specificity of deep metal-bearing solutions. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 1028334X |
| DOI: | 10.1134/S1028334X24603535 |
