Tagged: volcano

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Periodicity Of Eruption

Volcanoes are divided into three types on the basis of periodicity of eruption and interval period between two eruptions of volcano. Such as Active, Dormant and Extinct. Active Volcanoes: This are which constantly ejects lava,...

Fissure Type Of Eruption 0

Fissure Type Of Eruption

Fissure type of eruption occurs along faults and fractures. There is a slow up-welling of magma and the resultant lava spread over the ground surface. Here, it must be mentioned that the fractures are...

Central Type Of Eruption 0

Central Type Of Eruption

  Central type of eruption is one of the eruption when hot molten magma comes out through the central pipe or several parasite cones either in a very explosive manner or in a quiet manner....

Types Of Volcanoes 1

Types Of Volcanoes

 Volcanoes are classified on the basis of the following manner: Mode Of Eruptions    Eruption are of two types i.e. Central type of eruption and Quiet type of eruption. Again Central type of eruption...

Volcanic Materials or Products 0

Volcanic Materials or Products

 During volcanic eruption liquid, solid and gaseous materials are thrown to the air, which are collectively called as volcanic materials. This volcanic products can be classified into three categories; pyroclastic materials, lava and volatile...

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Volcano

A volcano is a vent or opening usually a circular or near circular in form, through which heated materials consists of gasses, water, liquid lavas and fragments of rocks are ejected from the highly...

Intraplate Volcanism 0

Intraplate Volcanism

Volcanism in central parts of plates beyond constructive and destructive margins is not so common,  but is the surface expression of local thermal variation or hot spots in the mantle. Intraplate volcanism occurs both...

Plate Margin Volcanism 0

Plate Margin Volcanism

There are two plate boundaries where volcanic activity takes place. Constructive Margin or Divergent Plate Boundary:     The asthenosphere, over which the lithosphere is floating, is mode of peridotite. A slight degree of melting...

Volcanism in Plate Tectonics 0

Volcanism in Plate Tectonics

 The worldwide distribution of volcanoes and their occurrence at specific places is related to different types of plate boundaries. Thus, volcanism in plate tectonics, will take place when two plates converge, as with the...

What is an Island Arc? 0

What is an Island Arc?

Island arc a long curved chain of oceanic island associated with intense volcanic activity, severe earthquake and mountain building process. Formation: Island arcs are formed along the convergent plate boundary where two oceanic plates...