A hole in a volcanic area from which hot smoke and gases escape.
A vent in a volcanic area, from which smoke and gases arise.
A vent in the surface of the Earth from which hot smoke and gases escape. Fumaroles are found on or near volcanoes, especially in areas where volcanic activity is in its later stages.
Origin of fumarole
Italian fumarolafrom Late Latin fūmāriolumsmoke holediminutive of Latin fūmāriumsmoke chamberfromfūmussmoke
The temperature of the vapour within the fumarole was 184°, and water boiled at 189°.
These clays are produced by the decomposition of the granite by acid vapours, which are discharged after the igneous rock has solidified ("fumarole or pneumatolytic action").
fumarole temperature and seismicity are shown and discussed.
The temperature of the vapour within the fumarole was 184Ã‚°, and water boiled at 189Ã‚°.
Sulphur is said to be found at Herat, dug from the soil in small fragments, but the chief supply comes from the Hazara country and from Pirkisri, on the confines of Seistan, where there would seem to be a crater, or fumarole.