The Generation of Trachytes and Comendites in the Subalkaline Differentiated Series, Sredinnyi Range, Kamchatka
| Autor: | N. V. Bryansky, G. B. Flerov, A. B. Perepelov, Yu. D. Shcherbakov, M. Yu. Puzankov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Series (stratigraphy)
geography Mineral geography.geographical_feature_category Range (biology) Metals and Alloys Trace element Geochemistry 02 engineering and technology 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology Feldspar 01 natural sciences 020303 mechanical engineering & transports Geophysics 0203 mechanical engineering Volcano visual_art Genetic model visual_art.visual_art_medium Geology 0105 earth and related environmental sciences |
| Zdroj: | Journal of Volcanology and Seismology. 14:83-95 |
| ISSN: | 1819-7108 0742-0463 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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