Liquid Immiscibility and Problems of Ore Genesis: Experimental Data
- 作者: Shapovalov Y.1, Kotelnikov A.1, Suk N.1, Korzhinskaya V.1, Kotelnikova Z.2
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隶属关系:
- Korzhinskii Institute of Experimental Mineralogy (IEM), Russian Academy of Sciences
- Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM), Russian Academy of Sciences
- 期: 卷 27, 编号 5 (2019)
- 页面: 534-551
- 栏目: Article
- URL: https://journals.rcsi.science/0869-5911/article/view/177750
- DOI: https://doi.org/10.1134/S0869591119050060
- ID: 177750
如何引用文章
详细
The paper reports the results of an experimental study of phase relations and distribution of elements in silicate melt–salt melt systems (carbonate, phosphate, fluoride, chloride), silicate melt I – silicate melt II, and fluid–magmatic systems in the presence of alkali metal fluorides. Extraction of a number of ore elements (Y, REE, Sr, Ba, Ti, Nb, Zr, Ta, W, Mo, Pb) by salt components was studied in liquid immiscibility processes within a wide temperature range of 800–1250°С and pressure of 1–5.5 kbar. It is shown that partition coefficients are sufficient for concentration of ore elements in amounts necessary for the genesis of ore deposits. In a fluid-saturated trachyrhyolite melt, the separation into two silicate liquids has been determined. The partition coefficients of a number of elements (Sr, La, Nb, Fe, Cr, Mo, K, Rb, Cs) between phases L1 and L2 have been obtained. The interaction processes of a heterophase fluid in the granite (quartz)–ore mineral–heterophase fluid (Li, Na, K-fluoride) system were studied at 650–850°C and P = 1 kbar. The formation of the phase of a highly alkaline fluid-saturated silicate melt concentrating Ta and Nb is shown as a result of the interaction of the fluid with rock and ore minerals.
作者简介
Yu. Shapovalov
Korzhinskii Institute of Experimental Mineralogy (IEM), Russian Academy of Sciences
编辑信件的主要联系方式.
Email: shap@iem.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
A. Kotelnikov
Korzhinskii Institute of Experimental Mineralogy (IEM), Russian Academy of Sciences
编辑信件的主要联系方式.
Email: kotelnik@iem.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
N. Suk
Korzhinskii Institute of Experimental Mineralogy (IEM), Russian Academy of Sciences
Email: kotelnik@iem.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
V. Korzhinskaya
Korzhinskii Institute of Experimental Mineralogy (IEM), Russian Academy of Sciences
Email: kotelnik@iem.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
Z. Kotelnikova
Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry (IGEM),Russian Academy of Sciences
Email: kotelnik@iem.ac.ru
俄罗斯联邦, Moscow, 119017