Phreatomagmatic eruption
Videos
Phreatomagmatic eruptions are volcanic eruptions resulting from interaction between magma and water. They differ from exclusively magmatic eruptions and phreatic eruptions. Unlike phreatic eruptions,
Ashfall deposit of phreatomagmatic origin, overlying lapilli fall deposit of magmatic origin
Crest of old tuff ring, including part of the maar crater of a monogenetic volcano, Tenerife, Canary Islands. The maar crater has been used for agriculture.
Koko Crater is an old extinct tuff cone in the Hawaiian Island of Oahu.
Fort Rock, an eroded tuff ring in Oregon, US.
Fort Rock
Videos
Fort Rock is a tuff ring located on an ice age lake bed in north Lake County, Oregon, United States. The ring is about 4,460 feet in diameter and stands about 200 feet high above the surrounding plain
Phreatomagmatic eruption
…to be a taller variant of a tuff ring, formed by less powerful eruptions. Tuff cones are usually small in height. Koko Crater is 1,208 feet. Examples Fort Rock, an eroded tuff ring in Oregon, US. Minoan eruption of Santorini Santorini is part of the Southern Aegean volcanic arc, 140 km north of Crete. The…
Fort Rock looking east from the Fort Rock Road
Winter view looking northwest into open side