Underground Lava Cascade

When the glowing lava flow effusive from a crater flows over a steep drop or scarp, a lava cascade forms. The cascade occurring in the underground lava tunnel is called underground lava cascade. This underground lava cascade has a width of about 8 m, drop of 1.5 m and slope gradient of about 60 degrees. On the surface of the cascade exhibit many traces of lava flow micro-landscapes in the shapes of streams, braids, sprays, waves, ropes, trunks, etc, which are vivid and marvelous.
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