Experimental data on the Nb, Ta, Ti, Ce, and La concentrations in felsic magmatic melts of various alkalinity and alumina content upon dissolving ilmenorutile, ferrotapiolite, and loparite in them and the partitioning of these metals between the melt and the mineral at 650–850°C and 100 MPa, which allow one to obtain quantitative characteristics for creating physicochemical models of the genesis of rare metal and rare earth deposits, are presented. It is shown that ilmenorutile and ferrotapiolite are stable in the peraluminous melt. Ilmenorutile is also stable in the subaluminous melt and at 650°C in the alkalized melt, and loparite is unstable in all melts participating in the experiments. The dependences of the content and partitioning of Nb on dissolving ilmenorutile and loparite are similar to each other and to those on dissolving columbite and tantalite. At the same time, the dependence obtained by dissolving ferrotapiolite is similar to that obtained by dissolving microlite and pyrochlore.

中文翻译：

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Nb、Ta、Ti、Ce 和 La 在花岗岩岩浆熔体和矿物之间的分配

不同碱度和氧化铝含量的长英质岩浆熔体中 Nb、Ta、Ti、Ce 和 La 浓度的实验数据，这些熔体在溶解钛铁矿、铁磷灰石和 loparite 后，以及这些金属在熔体和矿物之间在 650–介绍了 850°C 和 100 MPa，这使人们可以获得用于创建稀有金属和稀土矿床成因的物理化学模型的定量特征。结果表明，钛铁矿和铁磷灰石在过铝熔体中是稳定的。Ilmenorutile 在亚铝熔体和 650°C 的碱化熔体中也是稳定的，而 loparite 在参与实验的所有熔体中都不稳定。Nb的含量和分配对溶解钛铁矿和洛帕石的依赖性彼此相似，并且与溶解铌铁矿和钽铁矿的依赖性相似。同时，溶解铁磷灰石得到的依赖性与溶解微晶石和烧绿石得到的依赖性相似。