Smirnov

Ruruidake [Smirnov]

성층화산 · Japan - administered by Russia · 1447m

Ruruidake is composed of the cone on the horizon and the gently sloping Smirnov to the left. It is located at the NW tip of Kunashir Island. Smirnov has been extensively eroded by glaciers and contains young pyroclastic flow deposits and lava domes. The late-Pleistocene volcano has an active fumarole field on its western flank. The crater in the foreground is the northern crater of the 1973 eruption of Chachadake volcano to the SE. · 사진: Copyrighted photo by Yoshihiro Ishizuka, 1999 (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/). · Wikimedia Commons

화산 유형: 성층화산
국가: Japan - administered by Russia
지역: Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
해발: 1447m
좌표: 44.454, 146.140
마지막 분화: 미확인
판구조 환경: Subduction zone / Intermediate crust (15-25 km)
화산 지형: Composite
주요 암석: Andesite / Basaltic Andesite

지질학적 요약

Ruruidake is a late-Pleistocene andesitic-to-dacitic volcanic complex on the NW tip of Kunashir Island in the southern Kuriles, NW of Chachadake [Tiatia} volcano. About 2.5 km SSW of the Ruruidake peak, the gently sloping Smirnov edifice partially retains a constructional form, but the southern side has been heavily eroded by glaciers, exposing its Tertiary basement. A wide glacial trough on the SE flank of Smirnov contains a pyroclastic cone at its head that fed a 4 km lava flow. Another pyroclastic cone is located at the base of the trough near the terminus of the lava flow. Two fresh-looking lava domes of Holocene age also lie within the glacial valley to the north.

Wikipedia 요약

영어 요약

Smirnov is a volcano located at the northwestern end of Kunashir Island, Kuril Islands, Russia. It consists of two summits: Smirnov and Rurui stratovolcanoes. Rurui is the higher summit.

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