Volcanic activity is also common at divergent boundaries, where two plates slowly pull apart and allow molten rock to escape to the surface; There are more than 1,500 potentially active volcanoes or volcanic areas around the world at any given time. · volcano, vent in the crust of earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases. · a volcanic eruption is an eruption of molten rock, hot rock fragments, and hot gases through a volcano, which is a vent in a planet’s or satellite’s crust. They may be the world’s most dynamic landforms, given their ability to grow by accretion or … Volcanic eruptions can cause … · volcano - eruptions, types, magma: The most prominent example is the mid-atlantic ridge, site of … Volcanoes erupt because of the way heat moves beneath earth ’s surface. The term volcano can also refer to the landform … Volcanic eruptions are among the most stunning phenomena in the natural world. Volcanology, discipline of the geologic sciences that is concerned with all aspects of volcanic phenomena. · a relatively small number of volcanoes occur within plates far from their margins. · the absence of a record of major volcanic activity at hayli gubbi during the current geological age, the holocene epoch, before , could imply that the volcano may … Volcanoes are frequently classified by their size and shape (as is described in the section volcanic landforms), but they can also be classified by their … Heat is conveyed from the planet’s interior … Types of volcanic eruptions explained learn about the different kinds of volcanic eruptions. Consequently, a chemical classification is widely accepted and employed by most … · owing to the aphanitic texture of volcanic and hypabyssal rocks, their modes cannot be readily determined; Some, as exemplified by the volcanic islands of hawaii that lie in the interior of the pacific plate, are thought …