Volcanoes Unit 12.2

Shield Volcanoes Shield volcanoes are created __________ above _____________, NOT at plate boundaries. inland hot spots

inland hot spots mantle plumes short, wide cone lava a lot of magma Shield Volcanoes Shield volcanoes are created __________ above _____________, NOT at plate boundaries. inland hot spots mantle plumes created from _________________ from hot spots _____________________ made of ________ only eruptions are not explosive but contain _____________________ short, wide cone lava a lot of magma

Shield Volcanoes

Shield Volcanoes Mauna Kea, Hawaii

Shield Volcanoes Video lava flow into Pahoa from Kilauea https://www.youtube.com/watch?v=ddzU-rkzKF0

converging oceanic volcanic belt volcanic island arc Composite Volcanoes Composite volcanoes are created at ______________ plate boundaries, where one plate is ___________. continental + oceanic = chain of volcanoes on land called _____________________ oceanic + oceanic = chain of volcanoes in the ocean called _____________________ converging oceanic volcanic belt volcanic island arc

volcanic island arc

How are composite volcanoes made? carbonates Oceanic plates have a lot of ____________ from dead sea animals

How are composite volcanoes made? Subducting plate melts and the carbonates turn into ________

How are composite volcanoes made? rise pull magma CO2 will _______ and __________________ with it

How are composite volcanoes made? When the CO2 and magma reaches the surface, it forms a composite volcano: a ______________ volcano made of lava and ash tall cone

Eruptions erupts hot gas and ash ____________________________, and little magma

Eruptions explosive high pressure very _______________ because of gases inside the volcano build __________________ high pressure

Mt. St. Helen’s, 1980