A low, steep-sided cone of spatter built up on a fissure or vent; it is usually of basaltic material.
A low, steep-sided cone of spatter built up on a fissure or vent. It is usually of basaltic material
(from the article `volcano`) The radial fissure vents of Hawaiian volcanoes produce `curtains of fire` as lava fountains erupt along a portion of a fissure. These vents produce ... Liquid lava can be forced upward through cracks in the congealed surface layers of the flow. When the ejected blobs of liquid freeze and weld ... ...
A low, steep-sided cone of spatter built up on a fissure or vent. It is usually of basaltic material.
A low, steep-sided volcanic cone built by accumulation of splashes and spatters of lava (usually basaltic) around a fissure or vent.
A low, steep-sided cone built up from fluid pyroclasts coating the surface around a vent.