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Global Volcanism Program | Image GVP-02209

Hiyoriyama lava dome (left) was extruded during late stages of the eruption that produced the Oyunuma crater in the foreground. The dome is mantled by a thin layer of older sediments and breccias that were baked during uplift of the dome. The crater is 300-400 m wide and filled with hot water. Photo by Tom Simkin, 1981 (Smithsonian Institution).

Hiyoriyama lava dome (left) was extruded during late stages of the eruption that produced the Oyunuma crater in the foreground. The dome is mantled by a thin layer of older sediments and breccias that were baked during uplift of the dome. The crater is 300-400 m wide and filled with hot water.

Photo by Tom Simkin, 1981 (Smithsonian Institution).

Keywords: lava dome | crater | crater lake


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