Abstract

The main subject of this article is research on the genetic relationships in the K–Na subalkaline series that occurs in the Belogolovsky volcanic center located in the back part of Sredinny Range. The differentiated rock series includes trachybasalts, trachyandesites, trachytes, comendite, trachytes, and comendites. Mass balance calculation and trace element modeling show that crystal fractionation is the main process in volcanic center evolution and the main fractionated mineral is feldspar. Trace element characteristics of rock-forming minerals (Fsp, Cpx, Bt, Ap, and Ol) obtained by LA–ICP–MS method allowed calculation of the “mineral/rock” partition coefficients for the Belogolovsky volcanic center genetic model representation to explain melt evolution. Genetic connections were established between trachyandesites, trachytes, comenditic trachytes and comendites, whereas no direct genetic connections between trachybasalts and trachyandesites were detected.

中文翻译：

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堪察加半岛Sredinnyi山脉亚碱性微分系列中的菱形长毛象和扁柏树的生成

摘要

本文的主要主题是研究位于Sredinny山脉后部Belogolovsky火山中心的K-Na亚碱性系列的遗传关系。差异化的岩石系列包括钙玄武岩，钙钛矿，钙钛矿，陨石，钙钛矿，钙钛矿和陨石。质量平衡计算和微量元素建模表明，晶体分馏是火山中心演化的主要过程，主要的分选矿物是长石。通过LA–ICP–MS方法获得的岩石形成矿物（Fsp，Cpx，Bt，Ap和Ol）的痕量元素特征可以计算Belogolovsky火山中心遗传模型表示的“矿物/岩石”分配系数，以解释熔体演化。trachyandesites，trachytes之间建立了遗传联系，