Composition and formation conditions of ilmenite and titanomagnenite mineralization in two-pyroxene gabbro Medvedevskoje deposit (Southern Urals). I. Petrochemical and geochemical characteristics of rocks and ores
| Autor: | V. V. Holodnov, E. S. Shagalov, T. D. Bocharnikova, E. V. Konovalova |
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| Jazyk: | English<br />Russian |
| Rok vydání: | 2015 |
| Předmět: |
кусинско-копанский интрузивный комплекс
магнетит-ильменитовые месторождения состав возраст генезис пород и руд медведевского месторождения геохимия пород и руд kusinsko-kopansky intrusive complex magnetite-ilmenite deposits composition age rocks and ores genesis of the medvedevskoe deposit geochemistry of rocks and ores Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
| Zdroj: | Литосфера, Vol 0, Iss 6, Pp 69-82 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1681-9004 2500-302X |
| Popis: | In this paper based on new petrochemical and geochemical data with specificity in the compositions of rock-forming and ore minerals were determine the conditions of formation of Ti-Fe-V mineralization in the two-pyroxene gabbro of Medvedevskoje deposit. Two stages of formation of abundant mineralization in two-pyroxene gabbro as well fs in the rhythmically stratified amphibole-saussuritizated gabbro of mentioned deposit were distinguished: early cumulatively-magmatic stage and late-magmatic (subsolidus) stage. Staging of ore-genesis during the late-magmatic phase is related to the non-equilibrium of residual fluidized melt enriched with water and chlorine with regard to the previously allocated primary rock-forming and ore minerals (pyroxene, plagioclase, titanomagnetite and ilmenite) which formed a primary magmatic frame and layering of ore-bearing rocks. |
| Databáze: | Directory of Open Access Journals |
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