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Volcanoes - Coggle Diagram
Volcanoes
hazards
lava - only causes problems for slow moving houses
apart from in niragongo
ash
lahars
tsunami
gas
pyro flow
types
shield
basalt, constructive hot spot non viscous, low/ wide, h20 bang, non explosive. hawaii
basic
volcanic index zero to one
composite
andesite
viscous
infrequent eruptions
boom
destructive plate boundaries
What is a volcanoe?
an opening in the crust through which magma rises.
Distribution
Mainly on a narrow band on plate boundaries. 80% on pacific ring of fire
constructive
plates move away from each other
destructive
how is magma generated