Question

Distinguish between the following pair of terms associated with vulcanicity:

Fissure-type Volcanoes and Central-types Volcanoes

Answer 1

Fissure type Volcanoes	Central type Volcanoes
If the vent is of such type that eruption comes out through various holes in a line of long cracks it is called fissure type volcanoes.	If the vent is single and the magma erupting out takes the shape of a significant conical hill, it is known as central type volcanoes.

Answer 2

Fissure type of volcanoes: A volcano is a vent in the earth’s crust out of which hot molten rocks (lava) flow. The hot rocks may also eject violently in the form of solid pieces. If the vent is in the form of a long crack then it is known as a Fissure Type Volcano. In this type volcanic activity occurs quietly the lava upwells silently and spreads over a large area giving rise to volcanic plateaux and extensive lava sheets.
Central-type Volcanoes: If the vent in the earth’s crust is of such type that the rock materials come out and mounds hills or cones are formed than the volcanoes formed are known as Volcanoes of the Central type. Vesuvius and Fuji Yama are the best examples of this type.