Changes

[[Image:Lava_fountain.jpg|300px|thumb|Lava fountain of the Pu`u `O`o cinder and spatter cone on Kilauea Volcano, Hawai`i.]]A jet of [[lava]] sprayed into the air by the rapid formation and expansion of gas bubbles in the molten rock is called a '''lava fountain'''. Lava fountains typically range from about 10 to 100 m in height, but occasionally reach more than 500 m. Lava fountains erupt from isolated vents, along fissures, within active [[lava lake]]s, and from a [[lava tube]] when water gains access to the tube in a confined space.

[[Image:Lava_fountain.jpg|300px|thumb|Lava fountain of the Pu`u `O`o cinder and spatter cone on Kilauea Volcano, [[Hawaii|Hawai`i]].]]A jet of [[lava]] sprayed into the air by the rapid formation and expansion of gas bubbles in the molten rock is called a '''lava fountain'''. Lava fountains typically range from about 10 to 100 m in height, but occasionally reach more than 500 m. Lava fountains erupt from isolated [[vent]]s, along [[fissures]], within active [[lava lake]]s, and from a [[lava tube]] when water gains access to the tube in a confined space.

[[Category:Geology]]

[[Category:Volcanology]]