EVPP 110 Lecture - Physical Environment - Volcanoes - Student - Fall 2010

EVPP 110 Lecture - Physical Environment - Volcanoes - Student - Fall 2010

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Unformatted text preview: 1 EVPP 110 Lecture EVPP 110 Lecture Instructor: Dr. Largen Instructor: Dr. Largen Physical Environment: Physical Environment: Volcanoes Volcanoes 2 • Plate Tectonics • Earthquakes • Volcanoes 3 Volcanoes Volcanoes • definition • cause • form • locations • types of releases • effects • example 4 Volcanoes - definition Volcanoes - definition • Volcano – definition – magma • lava – causes • Animation of volcanism at a subduction zone at http://www.classzone.com/books/earth_scie 5 • Animation of volcanism at rift zone at http://www.classzone.com/books/earth_scie 6 • Animation of volcanism at hot spot at http://www.classzone.com/books/earth_scie 7 8 Volcanoes - forms Volcanoes - forms • Volcano – forms • shield • Stratovolcano /composite • cinder cone 9 Volcanoes - forms Volcanoes - forms • Volcano – forms • Shield 10 10 Volcanoes - forms Volcanoes - forms • Volcano – Forms • Stratovolcano / composite 11 11 Volcanoes - forms Volcanoes - forms • Volcano – Forms • cinder cone 12 12 Volcanoes - locations Volcanoes - locations • Volcano – Locations • “Ring of Fire” 13 13 Volcanoes - types of releases Volcanoes - types of releases • Volcano – types of releases • ejecta • liquid lava • gases 14 14 Volcanoes - types of releases Volcanoes - types of releases • Volcano – types of releases • ejecta 15 15 Volcanoes - types of releases Volcanoes - types of releases • Volcano – types of releases • liquid lava 16 16 Volcanoes - types of releases Volcanoes - types of releases • Volcano – types of releases • gases 17 17 Volcanoes - effects Volcanoes - effects • lava flows • ash deposition • mud slides (aka lahars) • landslides • lahars • pyroclastic flows • “blast” zones • toxic gas • seismic sea waves (tsunamis) • atmospheric dust 18 18 Volcanoes - effects Volcanoes - effects • lava flows • ash deposition • mud slides • landslides • lahars • pyroclastic flows • “blast” zones • toxic gas • seismic sea waves (tsunamis) • atmospheric dust 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 Volcanoes - effects Volcanoes - effects • lava flows • ash deposition • mud slides • landslides • lahars • pyroclastic flows • “blast” zones • toxic gas • seismic sea waves (tsunamis) • atmospheric dust 28 28 29 29 30 30 Ash plume from eruption of Mt. Etna, Italy 31 31 32 32 Volcanoes - effects Volcanoes - effects • lava flows • ash deposition • mud slides • landslides • lahars • pyroclastic flows • “blast” zones • toxic gas • seismic sea waves (tsunamis) • atmospheric dust 33 33 34 34 35 35 36 36 Volcanoes - effects...
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EVPP 110 Lecture - Physical Environment - Volcanoes - Student - Fall 2010

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