Growth-Building Phase Destruction- Classification of Volcanoes Shape Stratovolcano or Composite Shield Volcano Eruptive Style Explosive Non-Explosive Tectonic Classification Mid-Ocean Ridges Convergent Margins Island Arcs Hot-Spots Controls on eruptive style Composition of lava Silica content Water &amp; Gas content Viscosity Composition Water Content Temperature Volcanic Hazards Hazards Around the World Hazards in North America Volcanic Dangers Costs Next Slide Products of Melting &amp; Solidification Magma, Lava | \/ Igneous Rocks Pyroclastic Materials- rapidly solidified fragments of erupted lava Magma=Molten Rock below the surface Lava=molten rock above the surface TWO MAIN TYPES of LAVAS PAHOEHOE -ROPY 'A'A -BLOCKY Some nice info on Hawaiian Lava Flows from Volcano World | V COOLS TO YIELD Next Slide IGNEOUS ROCKS PLUTONIC=COOL BELOW THE SURFACE;
(Solidification Magma, Lava | \/ Igneous Rocks Pyroclastic Materials- rapidly; solidified; fragments of erupted lava Magma=Molten Rock below the surface Lava=molten rock above the surface TWO MAIN TYPES of LAVAS PAHOEHOE -ROPY 'A'A -BLOCKY Some nice info on Hawaiian Lava Flows from Volcano World | V COOLS TO YIELD Next Slide IGNEOUS ROCKS PLUTONIC=COOL BELOW THE SURFACE) Context(Solidification Magma , Lava | \ / Igneous Rocks Pyroclastic Materials - rapidly solidified,List([493, 580))):(fragments of; erupted; )
Solidification Magma , Lava | \ / Igneous Rocks Pyroclastic Materials - rapidly solidified,List([493, 580))
Solidification Magma, Lava | \/ Igneous Rocks Pyroclastic Materials- rapidly fragments of
solidified erupted
fragments of erupted lava Magma=Molten Rock below the surface Lava=molten rock above the surface TWO MAIN TYPES of LAVAS PAHOEHOE -ROPY 'A'A -BLOCKY Some nice info on Hawaiian Lava Flows from Volcano World | V COOLS TO YIELD Next Slide IGNEOUS ROCKS PLUTONIC=COOL BELOW THE SURFACE