A steep-sided mass of viscous (doughy) lava extruded from a volcanic vent, often circular in plane view and spiny , rounded, or flat on top. Its surface is often rough and blocky as a result of fragmentation of the cooler, outer crust during growth of the dome.
A steep-sided mass, partly or completely solidified, of viscous lava extruded from a volcanic vent
Bulbous lava flow or viscous plug of lava piled near its vent. Most are made of rhyolite.
Volcanic formations formed when lava oozes out of fissures in a planet's surface, creating the dome, and then withdraws, causing the crust to crack and subside.
A bulbous, steep-sided structure formed by viscous magma moving upward through a volcanic conduit.
A steep-sided mass of viscous and commonly blocky lava extruded from a vent; typically has a rounded top and roughly circular outline.
a mound-shaped growth resulting from the eruption of high-silica lava from a volcano that can become unstable leading to one of the most lethal forms of volcanic event
a steep mass of very thick and pasty lava that is pushed up from the main vent
a steep-sided mound that forms when viscous lava piles up near a volcanic vent.
Lava which is forced from the vent much like toothpaste from a tube, forming a half-ball shape over the vent. A lava dome forms when the lava is too viscous to flow far from the vent. It continues to grow upward until it collapses.
Mass of lava, created by many individual flows, that has built a dome-shaped pile of lava.
A dome is formed by eruption of extremely viscous or semi-solid lava that piles up around and above the vent in the volcano's crater. The lava dome can grow by swelling from the inside or by pushing out ‘lobes' or ‘spines' of lava. Commonly, only one sector of the lava dome actively grows at any one time and this is the area most prone to collapse and generation of pyroclastic flows.
When a volcano erupts very viscous lava, such as rhyolite, it may be so 'sticky' that it cannot flow sideways, but rather builds up into a dome above the vent. The cooling surface of the dome forms a crust and therefore great pressures can build up. An eruption forming a lava dome may result in a cataclysmic explosion (though many don't), such as happened at Mount St. Helens. Lava domes have formed in the Soufriere Hills volcano on Montserrat.
A dome-like mass of rhyolitic lava that accumulates above the eruption vent.
A dome shaped mountain of solidified lava. Generally created by the eruption of very viscous lavas.
A dome-shaped mass of congealed lava, formed by multiple flows.
A lava dome is a dome-shaped mound that is formed around a vent by viscous lava.
a dome-shaped volcano built up of many lava flows issued from the central vent of a volcano. [AHDOS
In volcanology, a lava dome is mound-shaped growth resulting from the eruption of high-silica lava (usually rhyolite and/or dacite) from a volcano. It is also known as a plug dome, although that term is rarely used. The high silica content makes the lava very viscous, so that it cannot flow very far from its vent before solidifying.