OKI ISLANDS UNESCO
GLOBAL GEOPARK
Geohistory - Rocks from Volcanic Islands Period
Geosites / Okinoshima Town
At Kishihama-tōge Pass, the path through which magma traveled was buried by pyroclastic rock, and inside it are volcanic glasses formed by the rapid cooling of magma: obsidian, perlite, and pitchstone.
Quartz Syenite and Hornfels, Ōyama
This rock was formed by magmatic ac…
Rocks of Shirashima Coast Seen From Shirashima Lookout
Designated as a National Place of S…
Tsūtenkyō Arch, Kuniga Coast
This sea arch was shaped naturally …
Mt. Takuhi (Central Cone and Takuhi Shrine)
Mt. Takuhi, the highest mountain in…
