Volcanic landforms

thumb|upright=1.35|Augustine Volcano (Alaska) during its eruptive phase on January 24, 2006

thumb|upright=1.3|alt=Water ejecting from the ground and steam rising to the right|Old Faithful erupting at [[Yellowstone National Park]]

thumb|right|Mount Mazama's eruption timeline, an example of caldera formation

circular depression in the ground caused by volcanic activity

thumb|upright=1.35|Mount Rainier, a stratovolcano, the highest mountain in the US state of Washington

basaltic underwater mountain system formed by plate tectonic spreading

thumb|The ten-day phreatomagmatic eruption that formed the [[Ukinrek maars]] thumb|The Devil Mountain Lakes on the Seward Peninsula in western Alaska – the largest maar-based lakes in the world

type of volcano usually built almost entirely of fluid lava flows

[[File:Supervolcano World Map.png|thumb|upright=1.5|World map of known VEI 7 and VEI 8 volcanoes

steep-sided mound formed by highly viscous lava

thumb|upright=1.3|Cross section (geometry)|Cross section of a laccolith intruding into and deforming strata

volcanic object created when magma hardens within a vent on an active volcano

natural conduits through which lava travels beneath the surface of a lava flow

molten lava contained in a volcanic crater

steep conical hill of volcanic fragments around and downwind from a volcanic vent

Biosphere reserve in Russian Federation | designated in 1984

thumb|Mofetta with gas bubbles in Soos National Nature Reserve near Skalná, Czech Republic thumb|Mofettas on the southeastern shore of the Laacher See, near [[Andernach, Rhineland-Palatinate, Germany]] Mofetta (Italian from Latin mephītis, a pestilential exhalation) is a name applied to a volcanic discharge consisting chiefly of carbon dioxide, often associated with other vapours, representing the final phase of volcanic activity. The Oxford Dictionary of English lists mofetta as an archaic term for the modern word fumarole.

volcano with more than one feature

plateau produced by volcanic activity

result of a very large volume eruption of basalt lava

left|thumb|Rima Hyginus, an eminent rille, in selenochromatic format thumb|Rimae on the floor of the lunar crater Gassendi (crater)|Gassendi, from [[Apollo 16.]] thumb|Mamers Valles rille on Mars. thumb|Rima Ariadaeus is categorized as a straight rille (graben) and is over 300 km in length. thumb|Hadley Rille at center is a sinuous rille visited by the Apollo 15 mission. thumb|Detail of part of Hadley Rille

volcanic landform which resembles a true volcanic crater, but differs in that it is not an actual vent from which lava has erupted

right|thumb|A hornito on the island of Réunion thumb|An example of a hornito on Hawaii that has built lava spatter deposits into a mound over its vent

vertically growing monolith of viscous lava that is slowly forced from a volcanic vent, such as those growing on a lava dome

thumb|Mudpot in Lassen Volcanic National Park thumb|Mudpots lined up above a volcanic fissure at Krafla|Hverarönd, [[Iceland]]

Rille on the Moon

large expanse of nearly flat-lying lava flows

thumb|right|300px|A kīpuka surrounded by lava flows at Kīlauea [[volcano, Hawai`i]] thumb|right|upright=1.35|Green kīpukas surrounded by brown lava flows erupted from Mount Iwate|Iwate volcano, Japan

vallis on Venus

lava flowing through

shield volcano

depression formed by a sinking or collapse of the surface lying above a void or empty chamber

thumb|Puy de Montjuger and Puy de Pourcharet, Puy-de-Dôme, France. Puy () is a geological term used locally in the Auvergne, France for a volcanic hill. The word derives from the Provençal puech, meaning an isolated hill, coming from Latin podium, which has given also puig in Catalan, poggio in Italian, poio in Galician and Portuguese.

collection of related volcanoes or volcanic landforms

contact point of lava flow and water

rough and barren landscape of relict and largely uneroded lava fields

mountain

volcanic dome on Venus that has experienced collapse and mass wasting such as landslides on its perimeter