Indium in cassiterite and ores of tin deposits
The results obtained with LA-ICP-MS by less abundant lighter 113In isotope and EPMA show that in cassiterite of cassiterite-quartz veins the indium contents do not exceed 160 ppm, while cassiterite from Sn-sulfide veins is characterized by higher indium contents from 40 to 485 ppm; sulfides of Sn-su...
| Published in: | Ore geology reviews Vol. 66. P. 99-113 |
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| Corporate Author: | |
| Other Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000529051 Перейти в каталог НБ ТГУ |
| Summary: | The results obtained with LA-ICP-MS by less abundant lighter 113In isotope and EPMA show that in cassiterite of cassiterite-quartz veins the indium contents do not exceed 160 ppm, while cassiterite from Sn-sulfide veins is characterized by higher indium contents from 40 to 485 ppm; sulfides of Sn-sulfide veins unlike sulfides of cassiterite-quartz veins also have the highest indium contents: Fe-sphalerite (100-25000 ppm), chalcopyrite (up to 1000 ppm), stannite (up to 60000 ppm). Indium contents in the Sn-sulfide ore of the Tigrinoe and Pravourmiiskoe deposits obtained using SR-XRF, ICP-MS and atomic absorption methods range from 10 to 433 ppm with average values of 56 - 65 ppm. Indium-rich Sn-sulfide mineralization in five large Sn-Ag ore districts of the Far East Russia (Khingansky, Badzhalsky, Komsomolsky, Arminsky, Kavalerovsky) provides the impetus for further exploration of deposits with Sn-sulfide mineralization as the most promising indium resources in Russia. Empirical observations from geology and geochronology of cassiterite-quartz and Sn-sulfide mineralization show that the combined contribution from granite and alkaline-subalkaline mafic sources and multistage oreforming processes doubled indium resources of deposits being the main factors in the formation of high grade indium mineralization. |
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| Bibliography: | Библиогр.: с. 111-113. |
| ISSN: | 0169-1368 |