The Tephra of the 1669 Etna, Sicily Eruption: The Petrologic, Mineralogical, Geochemical Properties, and the Geodynamic Aspect

Autor:	C. K. Simakov, D. N. Remizov, V. I. Silaev, B. A. Makeev, V. N. Filippov, K. V. Tarasov, G. A. Karpov, L. P. Anikin, S. N. Shanina, D. V. Kiseleva, V. Scribano
Rok vydání:	2021
Předmět:	geography Geophysics geography.geographical_feature_category Volcano Metals and Alloys Geochemistry Intraplate earthquake Stratovolcano Volcanism Magma chamber Geotechnical Engineering and Engineering Geology Tephra Geology
Zdroj:	Journal of Volcanology and Seismology. 15:180-200
ISSN:	1819-7108 0742-0463
Popis:	This paper reports the first multidisciplinary petrologic, mineralogical, and geochemical studies of the near-crater tephra discharged by the 1669 catastrophic eruption of Etna stratovolcano, Sicily. We studied the grain-size distribution, chemical and mineral-phase composition of the tephra. We determined the composition of trace elements and the composition of encapsulated lithogenic gases. Etna is classified as an intraplate volcano with a deep-seated magma chamber. Of special importance is the fact that the Etnean products were found to contain volcanogenic organoids that have phase, elemental, and isotope compositions similar to the organoids encountered in diamond-bearing products discharged by some Kamchatka volcanoes. This corroborates out earlier inference that carbonaceous abiogenesis is ubiquitous in the conditions of onshore volcanism.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::491ec5a7c893c58f4fe65b54fcb8210c https://doi.org/10.1134/s0742046321020056 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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