The Chemical Mechanism of the Formation of Fluorite-Barite-Siderite Carbonatite in Karasug Fe-F-Ba-Sr-REE Deposit
| Autor: | Alexander V. Bolonin |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
020209 energy Inorganic chemistry Salt (chemistry) Ionic bonding 02 engineering and technology 010502 geochemistry & geophysics Alkali metal 01 natural sciences Chemical reaction Fluorite Siderite chemistry.chemical_compound chemistry 0202 electrical engineering electronic engineering information engineering Carbonatite Composition (visual arts) Geology 0105 earth and related environmental sciences |
| Zdroj: | Open Journal of Geology. :399-403 |
| ISSN: | 2161-7589 2161-7570 |
| DOI: | 10.4236/ojg.2018.84023 |
| Popis: | Intrusive fluorite-barite-siderite carbonatite of Karasug deposit (Tuva) crystallized from ionic salt melt is dominated by iron chloride with the participation of alkali metal salts. Melt composition and main reaction of mineral formation: NaFeCl3 + 4KF + 2Na2Ca(CO3)2 + Na2Ba(CO3)2 + Na2SO4 = 6FeCO3 + 2CaF2 + BaSO4 + 14NaCl + 4KCl. The highest temperature (550°C - 650°C) brine-melt inclusions in minerals are pseudo-primary. Their predominant Na-K-chloride composition does not correspond to the primary melt, but is close to the residual brine-melt. |
| Databáze: | OpenAIRE |
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