Abstract— Differences between two types of highly differentiated granites of the Salmi batholith: namely Li-siderophyllite topaz-bearing and Li–F topaz-zinnwaldite granites, were determined based on the study of their structural-morphological, mineralogical and geochemical features are determined. The high degree of the differentiation of these granites is confirmed by the presence of primary topaz, Li-micas of magmatic origin and by the presence of significative tetrad effect of M type. These granites are distinguished due to the types of their micas, the content of topaz (up to 1 and 15%, respectively), the morphology of granite intrusions and the geochemistry of rare elements. The Li–F zinnwaldite granites are depleted in REE and enriched in Ta, Hf, Ba, Sr compared to the Li-siderophyllite granites. The Li-siderophyllite granites clearly fit to the general evolution trend of the Salmi batholith granites, while the genesis of Li–F zinnwaldite granites seems to be associated not only with the processes of crystallization differentiation of the melt but also with the active addition of some components, primarily F and Li, probably from a deeper source, including the mantle.

中文翻译：

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南卡累利阿 Salmi Batholith 的两种高度分化的含黄玉花岗岩

摘要：通过对 Salmi 基岩的两种高度分化的花岗岩的结构-形态、矿物学和地球化学特征的研究，确定了它们之间的差异：含锂铁蜡石黄玉和锂 F 黄玉-锌华锂辉石花岗岩。这些花岗岩的高度分化由原生黄玉、岩浆成因的锂云母的存在以及显着的 M 型四分体效应的存在所证实。这些花岗岩因其云母类型、黄玉含量（分别高达 1% 和 15%）、花岗岩侵入体的形态和稀有元素的地球化学而与众不同。与锂铁蜡石花岗岩相比，Li-F zinnwaldite 花岗岩缺乏 REE 并富含 Ta、Hf、Ba、Sr。