cacemy Volcanoes Presented by Bhumika Saini
Volcanoes A volcano is a rupture on the crust of Earth that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Eruptions can cause lateral blasts, lava flows, Eruptions can cause lateral blasts, lava flows, hot ash flows, mudslides, avalanches, falling ash and floods.
PARTS OF VOLCANOE Crater Lava Side Vent Main Vent
Plate tectonics and volcanoes Plate tectonics provides the most logical explanation of volcanoes and earthquakes. . There are 3 types of plate boundaries along which earthquake occurs 1.Convergent 2 Divergent 3 Transform
The Continental Plates Norch Anerican Plate late Pacific Plate African Nazca South Plate Amcrican Indian Austin lian Plate Plate Antarctic Plate spreading boundary Converging boundary/transform boundary
SCHEMATIC CROSS SECTION OF PLATE TECTONICS CONTINENTAL RIFT ZONE YOUNG DIVERGENT PLATE BOUNDARY) TRANSFORM PLATE BOUNDARY CONVERGENT PLATE BOUNDARY DIVERGENT CONVERGENT PLATE BOUNDARY PLATE BOUNDARY SHIELD VOLCANO STRATO CONTINENTAL CRUST OCEANIC CRUST HOTSPOT ASTHENOSPHERE MANTLE
VOLCANO FORMATION: HOT SPOTS Direction of Plate Hot Spot North Eurasian American Plate co Pate Plate Paciic Afrcan Plate Plate South Plate Antarctica Plate Plate HOT SPOT BOUNDARY BETWEE BOUNDARY BETWEEN TECTONIC PLATE
Global Distribution of Volcanoes Along divergent plate boundaries, such as Oceanic Ridges . Along converging plate boundaries where subduction is occurring. And, in areas called "hot spots" that are usually located in the interior of plates, away from the plate margins.
World Map of Volcanoes
Volcanoes Around the world South America 1190 Africa 13% Antarctica 2% North America 27 Asia Europe 4% 0 37% Australia 6%
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