Mount Iō (Iōjima)

Mount Iō
硫黄岳
Aerial view of Iōjima with Mount Iō steaming.(February 2008)
Elevation	703.7 m (2,309 ft) [1]
Listing	List of mountains and hills of Japan by height
Translation	Sulphur Mountain (Japanese)
Location
Location	Iōjima, Kagoshima Prefecture, Japan
Range	Kikai Caldera
Coordinates	30°47′35″N 130°18′19″E / 30.79306°N 130.30528°E / 30.79306; 130.30528Coordinates: 30°47′35″N 130°18′19″E / 30.79306°N 130.30528°E / 30.79306; 130.30528[1]
Topo map	Geographical Survey Institute, 25000:1 薩摩硫黄島, 50000:1 開聞岳
Geology
Type	Stratovolcano
Age of rock	Holocene
Volcanic arc/belt	Ryukyu arc
Last eruption	August-October 2004

Mount Iō (硫黄岳, Iō-dake^?) also Mount Iwo is an active rhyolitic lava dome on Iōjima in Kagoshima Prefecture, Japan. It sits within the borders of the town of Mishima.

The mountain is made up of non-alkali felsic rock and pyroclasitic flows.^[2]

References

1. ^ ^{a b} Geographical Survey Institute map 25000:1 薩摩硫黄島, last access 9 January 2009
2. ^ "Kyushu". Seamless Digital Geographical Map of Japan. Geological Survey of Japan AIST. 2007. http://riodb02.ibase.aist.go.jp/db084/kihon/kyushu_e.xml. Retrieved 2009-01-13. 

• Smithsonian Institution's Global Volcanism Program - Kikai
• VolcanoWorld - Kikai, Kyūshū, Japan
• Geographical Survey Institute
• S. Hamasaki, Volcanic-related alteration and geochemistry of Iwodake volcano, Satsuma-Iwojima, Kyushu, SW Japan, Earth Planets Space, pp 217–229, 2002, Tsukuba, Research Center for Deep Geological Environments, Geological Survey of Japan, AIST,