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OKI ISLANDS UNESCO
GLOBAL GEOPARK

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  2. List of Geopark Sites and Treasures
  3. Quartz Syenite and Hornfels, Ōyama

Quartz Syenite and Hornfels, Ōyama

Geohistory - Rocks from Volcanic Islands Period

Geosites / Nishinoshima Town

This rock was formed by magmatic activity underground around 7 million years ago, right before volcanic activity began in the Dōzen Islands. Around it you can also see rocks that were scorched by the magma's heat.

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See More Rocks from Volcanic Islands Period

  • Rōsoku-jima (Candle Island) and Umanose-iwa (Horseback Rock)

    From here you can see the famous Rō…

    Geohistory - Rocks from Volcanic Islands Period
    Geosites / Nishinoshima Town
  • Feeder Dike, Shiro Coast

    Here you can see the path through w…

    Geohistory - Rocks from Volcanic Islands Period
    Geosites / Nishinoshima Town
  • Dōzen Caldera Seen From Onimai Lookout

    This lookout point is located on th…

    Geohistory - Rocks from Volcanic Islands Period
    Geosites / Nishinoshima Town
  • Matengai Cliff, Kuniga Coast

    This 257 m high cliff is the one of…

    Geohistory - Rocks from Volcanic Islands Period
    Geosites / Nishinoshima Town
Search Other Geopark Sites and Treasures
  • About Oki Islands UNESCO Global Geopark

    • About Oki Islands UNESCO Global Geopark
    • Geohistory
    • Unique Ecosystem
    • Lifestyles and Traditions
  • Geopark Sites and Treasures

    • Explore Geopark Sites and Treasures
    • List of Geopark Sites and Treasures
  • For Schools and Community

    • Education Programs
    • Regional Activities

    For Researchers

    • For Researchers
  • About Oki Islands Geopark Management Bureau

    • About Us
    • About Geoparks

    Oki Islands Geopark Museum

    • Oki Islands Geopark Museum
  • News
  • Activity Reports
  • Pamphlets
  • Video Library
  • Logo and Patronage
Links About This Website

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