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LIQUID IMMISCIBILITY AND PROBLEMS OF ORE GENESISстатья
- Авторы: Kotelnikov A.R., Shapovalov Yu B., Suk N.I., Kotelnikova Z.A., Korzhinskaya V.S.
- Журнал: Experiment in GeoSciences
- Том: 25
- Номер: 1
- Год издания: 2019
- Первая страница: 140
- Последняя страница: 144
- Аннотация: The results of an experimental study of phase relations and distribution of elements in the systems of silicate melt – salt (carbonate, phosphate, fluoride, chloride) melt, silicate melt I – silicate melt II, as well as in fluid-magmatic systems in the presence of alkali metal fluorides are presented. Salt extraction of a number of ore elements (Y, REE, Sr, Ba, Ti, Nb, Zr, Ta, W, Mo, Pb) was studied in liquid immiscibility processes in a wide temperature range of 800–1250°C and pressure of 1–5.5 kbar. It is shown that the partition coefficients are sufficient for the concentration of ore elements in the quantity necessary for the genesis of ore deposits. In the fluid-saturated trachyrhyolite melt, separation into two silicate liquids was obtained, and the partition coefficients for a number of elements (Sr, La, Nb, Fe, Cr, Mo, K, Rb, Cs) between phases L1 and L2 were determined. The processes of interaction of a heterophase fluid in the granite (quartz) - ore mineral - heterophase fluid (Li, Na, K-fluoride) system were studied at 650–850oC and P =1 kbar. The formation of a phase of a highly alkaline fluidsaturated silicate melt – Ta and Nb concentrator – is shown as a result of the reaction of the fluid with the rock and ore minerals.
- Добавил в систему: Коржинская Валентина Сергеевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Shap_Kotelnik_ExpGeo-2019.pdf | 407,8 КБ | 6 ноября 2019 [nikvalkor] | |
| 2. | Первая страница | titul2b_2019.pdf | 140,9 КБ | 12 ноября 2019 [SukNatalia] |