Volcanos Flashcards
The largest mountains on earth these volcanoes are composed of layers of hardened mafic lava. They are very broad and the slopes are less than or equal to 15 degrees.
Shield Volcanoes
The smallest and steepest volcanoes
composer of layers of cinders.
Often appear as parasite volcanoes on larger mafic volcanoes.
slopes vary from 30 to 45 degrees.
Cinder cones
these volcanoes are intermediate in size and slope to other types of volcanoes.
Composed of alternating layers of volcanic ash and hardened felsic and intermediate lava.15-30 degree slopes.
Composite Volcanoes
depression that forms when a volcano collapses into an emptied magma
Caldera
A flow river of lava, can flow incredibly fast
Lava Flow
Big clouds of ash
Ashfall
Incadanscet glowing cloud of ash that exsolving gas that travels down the flank of the volcano at high speed.
Pyroclastic flows
mudflow of saturated volcanic ash
Lahar
Explosive hazard when volcanoes erupt
Explosive energy
sulfur
Gas from Fumaroles
large clouds of ash cause this hazard
Climate Change
Lava flow case study
Kilauea
2018
hawaii
United states
Ash fall case study
Mt vesuvius
79 AD
pompeii
itally
Pyroclastic flow case study
Mt Pelee
1902
St Pierre
Martinique
Lahar case study
Nevado del Ruiz
1985
Columbia
