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Fumarole
Earth Science |
- A vent or opening through which issue steam, hydrogen sulfide, or other gases. the craters of many dormant volcanoes contain active fumaroles.
- A vent or hole in the earth`s surface, usually in a volcanic region, from which steam, gaseous vapors, or hot gases issue.
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Фумарола, русский
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Cinder cone, английский
- A volcanic cone built entirely of loose fragmented material (pyroclastics.)
- A conical hill formed by the accumulation of cinders and other pyroclastics, normally basaltic or andesitic composition. slopes generally exceed 20 percent. gg
Ash flow, английский
A turbulent mixture of gas and rock fragments, most of which are ash-sized particles, ejected violently from a crater or fissure. the mass of pyroclastics is normally of very high temperature and moves rapidly down the slopes, or even along a level surface.
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