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VOLCANOES

VOLCANOES. PLATE TECHTONICS: PLATE BOUNDARIES. PLATE TECHTONICS : PACIFIC “RING OF FIRE”. PLATE TECHTONICS. VOLCANIC LANDFORMS. SHIELD VOLCANO. CINDER CONE. SCORIA CONE. COMPOSITE. MAARS VOLCANO. CALDERA.  LAVA TUBE. LAVA LAKE . LAVA DOME. BASALT PLATEAU. TYPES OF ERUPTIONS.

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VOLCANOES

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  1. VOLCANOES

  2. PLATE TECHTONICS: PLATE BOUNDARIES

  3. PLATE TECHTONICS : PACIFIC “RING OF FIRE”

  4. PLATE TECHTONICS

  5. VOLCANIC LANDFORMS SHIELD VOLCANO CINDER CONE SCORIA CONE COMPOSITE

  6. MAARS VOLCANO CALDERA

  7. LAVA TUBE LAVA LAKE  LAVA DOME BASALT PLATEAU

  8. TYPES OF ERUPTIONS FISSURE FUMEROLE LAVA FOUNTAIN STROMBOLIAN

  9. STEAM ERUPTION PYROCLASTIC FLOW  GEYSER

  10. TYPES OF MATERIAL PUMICE ASH LAHAR= MUD AND DEBRIS LAVA

  11. SCORIA MUD VOLCANIC BLOCK OR BOMB

  12. VISCOCITY OF LAVAHIGH VISCOCITY= THICK&STICKY AHHA FLOW= SLOW FLOW ROPY FLOW

  13. LOW VISCOCITY = HIGHLY FLUID AND HIGH SPEED

  14. PYROCLASTRIC FLOW= MOST DEADLY POMPEI VICTIM ENCASED IN ASH PYROCLASTIC FLOW = ASH AS HOT AS THE SUN AT SUPER SPEEDS.

  15. STATUS ACTIVE HAWAII’S KILAUEA= MOST ACTIVE DORMANT=JUST SLEEPING EXTINCT

  16. DISASTERS MUDSLIDES LAVA FLOW PYROCLASTIC FLOW AS ASH

  17. MONITORING FOR PREVENTION

  18. WHY DO PEOPLE LIVE IN THESE AREAS? VOLCANIC SOILS = FERTILE SOILS FERTILE SOILS GROW THINGS SUPPORTS POPULATIONS WITH FOOD $$$ WORTH THE RISK???

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