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The Generation of Trachytes and Comendites in the Subalkaline Differentiated Series, Sredinnyi Range, Kamchatka
Journal of Volcanology and Seismology ( IF 0.7 ) Pub Date : 2020-05-13 , DOI: 10.1134/s0742046320020062 Yu. D. Shcherbakov , A. B. Perepelov , G. B. Flerov , M. Yu. Puzankov , N. V. Bryansky
中文翻译:
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
更新日期:2020-05-13
Journal of Volcanology and Seismology ( IF 0.7 ) Pub Date : 2020-05-13 , DOI: 10.1134/s0742046320020062 Yu. D. Shcherbakov , A. B. Perepelov , G. B. Flerov , M. Yu. Puzankov , N. V. Bryansky
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:
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