A vent that releases volcanic gases, including water vapor (steam).

a hole or vent from which superheated gas and steam discharges under pressure. geothermal: of or relating to the Earth's interior heat.

A volcanic vent that emits hydrogen sulfide or other gases.

vents from which volcanic gases escape into the atmosphere; these usually occur along fissures or on the surface of lava flows that have cooled enough to have a crust

A small volcanic vent from which gases and vapors are emitted.

Volcanic vent where smoke and gases escape from.

A vent or opening in the ground that emits hot water vapor (steam) and (or) volcanic gases.

a small opening or vent from which hot gases are emitted

a crack or fissure where only hot steam is escaping

a hole in area of a volcano from which hot gases and vapors are released

a vent that emits only gases and vapor

a volcanic hole from which hot gases and vapors are emitted

vent or opening giving off gases or steam. Fumaroles occur on both active and dormant volcanoes.

a vent in Earth's surface that releases steam and other gases, but generally no lava.

A place where hot gases (including steam) are released and this if often accompaned by sulphur deposition.

Small vent or opening from which volcanic gases are discharged.

A vent or opening through which issue steam, hydrogen sulfide, or other gases. The craters of many dormant volcanoes contain active fumaroles.

Vents from which volcanic gas escapes into the atmosphere.

A vent that releases volcanic gases and steam.

A place where hot gases including steam are released and there is often deposition of sulphur.

Fumaroles are steam vents (Latin "fumus" = smoke); the "smoke" is water vapour (temperature between 200°C and 800°C), the dominant constituent, but acid gases characteristically occur. There is an intimate connection between fumaroles and simple hot springs: hot springs can be transformed into fumaroles, which in turn, during the wet seasons, become hot springs again.

A hole, usually found in volcanic areas, from which vapors or gases escape.

A hole or vent from which volcanic fumes or vapors issue.

a hole in the ground through which gases and hot vapors pass; located in a volcanic region

A vent or hole in the Earth's surface, usually in a volcanic region, from which steam, gaseous vapors, or hot gases issue. Geology Study of the planet Earth, its composition, structure, natural processes, and history.

A vent from which steam or gases issue; a geyser or spring that emits gases.

A hole in a volcanic region from which hot gases and vapors issue.

A vent from which steam and gases are emitted in both active and dormant volcanoes.

A fumarole is a vent from which volcanic gases (like sulphur vapor) escape. Fumaroles can occur along small cracks or long fissures. EnchantedLearning.com Rock and Mineral Dictionary Click on an underlined word for more information on that subject. If the rock or mineral term you are looking for is not in the dictionary, please e-mail us and we'll add it. Enchanted Learning® Over 20,000 Web Pages. Sample Pages for Prospective Subscribers

Shield Volcano

ahole or vent in the earth's crust in a volcanic region, from which steam and hot gases issue. [AHDOS

A fumarole (Latin fumus, smoke) is an opening in Earth's (or any other astronomical body's) crust, often in the neighborhood of volcanoes, which emit steam and gases such as carbon dioxide, sulfur dioxide, hydrochloric acid, and hydrogen sulfide. The name solfatara, from the Italian solfo, sulfur (via the Sicilian dialect), is given to fumaroles that emit sulfurous gases.