VOLCANOES

Prepared By Mrs. Savita kukreti

Pawar Public School, Kandivali

TYPES OF VOLCANOES BASED ON SHAPE CENTRAL VENT FISSURE VOLCANO SHIELD VOLCANO CONICAL VOLCANO

CENTRAL VENT

FISSURE VOLCANO

FISSURE VOLCANO

COLOMBIA PLATEAU

LOCATION OF COLUMBIAN PLATEAU

SHIELD VOLCANO

SHIELD VOLCANO

SHIELD VOLCANO

MANUA LOA- HAWAI

MANUA LOA VOLCANO

EXTENT OF MANUA LOA VOLCANO

LAVA FLOW FROM VOLCANOES

CONICAL VOLCANOES

LANDFORMS FORMED IN VOLCANIC REGIONS VOLCANIC REGION LAVA (EXTERIOR) MAGMA(INTERIOR)

EXTRUSIVE LANDFORMS INRTUSIVE LANDFORMS Cone and Crater Dykes Composite cones Laccolith Caldera Batholith Lava Shields Sill Lava Plateau

CONE AND CRATER

COMPOSITE CONES

CALDERA

LAVA PLATEAU

LAVA SHIELDS

INTRUSIVE LANDFORMS Magma cools and becomes solid slowly

in the interior of the earth as it enters the rock crevices and fissures below the ground.

INTRUSIVE VOLCANIC LANDFORMS

DYKES

DYKE EXPOSED TO THE SURFACE

DYKE

DYKE FORMED BETWEEN ROCKS

SILL

LAPOLITHS

LAPOLITH

BATHOLITHS

BATHOLITHS

BATHOLITHS

BATHOLITHS

PHACOLITH

PHACOLITH

LACCOLITH

LACCOLITH

LACCOLITH

OTHER FEATURES IN VOLCANIC AREAS HOT SPRINGS GEYSERS

HOT SPRINGS

HOT SPRINGS

MANIKARAN HOT WATER SPRING

GEYSERS

OLD FAITHFUL GEYSER

WOLD DISTRIBUTION OF VOLCANOES