R6：深成岩・火山岩及び サブダクションファクトリー

[R6-08] Petrology of pumice stone in the 39 ka caldera-forming eruption of Mendeleev volcano (Kunashir Island)

[Presentation award entry]

*Alexey Kotov¹, Sergey Smirnov², Noriyoshi Tsuchiya¹, Masaoki Uno¹ (1. Tohoku Uni, 2. Institute of Geology and Mineralogy SB RAS, Novosibirsk)

キーワード：Melt inclusions, Caldera eruptions, Dacite

In order to examine the magma evolution of the Mendeleev volcano, we have reported mineral compositions, whole rock compositions, melt and fluid inclusions descriptions of volcanic rocks from 39 ka caldera-forming eruption of Mendeleev Volcano (Kunashir Island). As result, we present the first conclusions about the genesis of the dacite magmas of the Mendeleev volcano.