VOLCANIC ERUPTIONS.pptx TYPES OF VOLCANO ACCORDING TO SHAPE

RoseAnnHilao1 69 views 15 slides Mar 03, 2024
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About This Presentation

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. Volcano have different types like startovolcano, cinder cone volcano and shield volcano.


Slide Content

Volcanic Eruptions

Volcanic E ruption A volcanic eruption is one of several forces that change the thick magma coupled with large amounts of dissolved gases from within a volcano contributes to an explosive eruption of lava, ash, and rocks. Lesser amounts of

Continuation dissolved gases, however, lead to effusive, non explosive eruption surface of the Earth. Collisions between tectonic plates deform rocks and trigger a buildup of temperature that causes the rocks to melt, creating magma. This buildup of thick magma coupled with large.

Continuation amounts of dissolved gases from within a volcano contributes to an explosive eruption of lava, ash, and rocks

Types of volcanic eruption

1. Hawaiian eruption 2. Strombolian eruption 3. Vulcanian eruption 4. plinian eruption

Hawaiian eruption

Hawaiian eruption Hawaiian is the least violent type, with highly fluid or runny lava flowing out several vents. This is similar to the way Hawaiian volcanoes erupt, w hich creates shield volcanoes.

Strombolian eruption

Strombolian eruption Strombolian is violent, featuring continuous ejection of magma and gas. It results in the formation of volcanic bombs and cinder cones.

Vulcanian eruption

Vulcanian eruption In a Vulcanian eruption, a thick, viscous magma flows around the vent as solid lava and dust are ejected.

Plinian eruption

Plinian eruption The most violent and explosive type of eruption in the Plinian which is caused by the buildup of viscous magma and dissolved gas. This type is accompanied by fast-flowing pyroclastic debris and lahars.

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