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Daikoku Seamount

Daikoku

성층화산 · United States · 323m (해저)

A plume rises from a vent at about 400 m depth on Daikoku seamount in this close-up view only about a few meters across. During a NOAA expedition in 2006 scientists observed a convecting, black pool of liquid sulfur with a partly solidified, undulating sulfur crust. The summit of lies along an E-W-trending ridge SE of Eifuku submarine volcano and rises to within about 300 m of the ocean surface.
A plume rises from a vent at about 400 m depth on Daikoku seamount in this close-up view only about a few meters across. During a NOAA expedition in 2006 scientists observed a convecting, black pool of liquid sulfur with a partly solidified, undulating sulfur crust. The summit of lies along an E-W-trending ridge SE of Eifuku submarine volcano and rises to within about 300 m of the ocean surface. · 사진: Image courtesy of Submarine Ring of Fire 2006 Exploration, NOAA Vents Program. · Wikimedia Commons
화산 유형
성층화산
국가
United States
지역
북서태평양 / Mariana Volcanic Arc
해발
323m (해저)
좌표
21.324, 144.194
마지막 분화
미확인
판구조 환경
Subduction zone / Crustal thickness unknown
화산 지형
Composite
주요 암석
Andesite / Basaltic Andesite
지질학적 요약

The conical summit of Daikoku seamount lies along an E-W ridge SE of Eifuku and rises to within 323 m of the sea surface. A steep-walled, 50-m-wide crater on the N flank, about 75 m below the summit, is at least 135 m deep and was observed to emit cloudy hydrothermal fluid. During a NOAA expedition in 2006, scientists observed a convecting black pool of liquid sulfur with a partly solidified, undulating sulfur crust at a depth of 420 m below the summit. Gases, particulates with the appearance of smoke, and liquid sulfur were bubbling up from an edge of the sulfur pool.

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