Details

Autor(en) / Beteiligte

• Silaev, V. I.
• Karpov, G. A.
• Anikin, L. P.
• Scribano, V.
• Remizov, D. N.
• Filippov, V. N.
• Kiseleva, D. V.
• Makeev, B. A.
• Shanina, S. N.
• Tarasov, K. V.
• Simakov, C. K.

Titel

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

Ist Teil von

• Journal of volcanology and seismology, 2021-05, Vol.15 (3), p.180-200

Ort / Verlag

Moscow: Pleiades Publishing

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.