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Volcanoes Kim Lachler Updated 11/14 NCES 6.E.2.2.

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Presentation on theme: "Volcanoes Kim Lachler Updated 11/14 NCES 6.E.2.2."— Presentation transcript:

1 Volcanoes Kim Lachler Updated 11/14 NCES 6.E.2.2

2 Eruption types

3 Type 1 Type 1  small amount of gas is trapped underground  Not much pressure buildup  Lava oozes out in a calm, steady flow  Most gentle type of eruption

4 Eruption type Type 2 Type 2  Small buildup of gas causes a noisy explosion  Lava is thrown several hundred feet in the air  Not as dangerous as some other types  Most common on land

5 Eruption types Type 3 Type 3  Sticky magma plugs up a volcano’s opening  Gas builds up, causing pressure  Explosion can throw debris as high as nine miles into the air  Smaller explosions can occur for days, months, or years after the eruption

6 Type of eruption Type 4 Type 4  Magma plugs up a volcano’s opening  Pressure builds up behind the plug  Blast can throw debris more than 15 miles into the air into the air  Most dangerous  Parts of a mountain can be blown off

7 Lava types Aa Aa  lava pours out quickly and forms a brittle crust  as it continues to flow it cause the crust to tear into jagged pieces Lava_on_Land_and_in_Water.mov

8 Lava types Pahoehoe Pahoehoe  lava pours out slowly like wax  it is glassy with wrinkles

9 Lava types Pillow lava Pillow lava  forms when lava erupts underwater  forms round lumps

10 Lava types Blocky lava Blocky lava  lava oozes out into heaps forming blocky chunks

11 Volcano types Shield volcanoes Shield volcanoes  large, broad, gently sloping sides, lava flows easily  formed from build up of layers

12 Volcano types Cinder Cone volcanoes Cinder Cone volcanoes  small, steep cones formed from lava that dropped from the air after an explosive eruption  short lived explosions

13 Volcano types Composite volcanoes (Stratovolcanoes) Composite volcanoes (Stratovolcanoes)  steep sided mountains, where plates collided. Has alternating layers of lava and rock. Mt. Fuji, Japan

14 Volcano types Fissure eruptions Fissure eruptions  oozes from cracks in the earth’s surface

15 Bibliography Holt, Rinehart & Winston, North Carolina, Holt, Rinehart & Winston, Orlando, Fl, 2005 Holt, Rinehart & Winston, North Carolina, Holt, Rinehart & Winston, Orlando, Fl, 2005 Google images, volcanoes, http://www.google.com/images?hl=en&q=volcanoes&um=1&ie=UTF- 8&source=univ&ei=ZK6zTP_wH4S8lQfj3Yi8Cg&sa=X&oi=image_result_group&ct=title&resnum=4&ved=0CD4QsA QwAw, accessed 10/11/10 Google images, volcanoes, http://www.google.com/images?hl=en&q=volcanoes&um=1&ie=UTF- 8&source=univ&ei=ZK6zTP_wH4S8lQfj3Yi8Cg&sa=X&oi=image_result_group&ct=title&resnum=4&ved=0CD4QsA QwAw, accessed 10/11/10http://www.google.com/images?hl=en&q=volcanoes&um=1&ie=UTF- 8&source=univ&ei=ZK6zTP_wH4S8lQfj3Yi8Cg&sa=X&oi=image_result_group&ct=title&resnum=4&ved=0CD4QsA QwAwhttp://www.google.com/images?hl=en&q=volcanoes&um=1&ie=UTF- 8&source=univ&ei=ZK6zTP_wH4S8lQfj3Yi8Cg&sa=X&oi=image_result_group&ct=title&resnum=4&ved=0CD4QsA QwAw Discovery school, Erupting volcano, http://school.discoveryeducation.com/clipart/clip/ani-cano-gif.html, accessed 10/11/10 Discovery school, Erupting volcano, http://school.discoveryeducation.com/clipart/clip/ani-cano-gif.html, accessed 10/11/10http://school.discoveryeducation.com/clipart/clip/ani-cano-gif.html Lava, http://en.wikipedia.org/wiki/Lava, accessed 10/11/10 Lava, http://en.wikipedia.org/wiki/Lava, accessed 10/11/10http://en.wikipedia.org/wiki/Lava Shield volcano, http://en.wikipedia.org/wiki/Shield_volcano, accessed 10/11/10 Shield volcano, http://en.wikipedia.org/wiki/Shield_volcano, accessed 10/11/10http://en.wikipedia.org/wiki/Shield_volcano World Winds, Volcano type, http://www.google.com/imgres?imgurl=http://library.thinkquest.org/03oct/00795/images/typesc.GIF&imgrefurl=h ttp://library.thinkquest.org/03oct/00795/voltypes.html&usg=__nK9mIC9OXp5jFrCNMotV8RbK3Ds=&h=236&w=26 5&sz=15&hl=en&start=10&zoom=1&um=1&itbs=1&tbnid=0X5M2vaCOvFQ1M:&tbnh=100&tbnw=112&prev=/im ages%3Fq%3Dvolcano%2Btypes%26um%3D1%26hl%3Den%26sa%3DG%26tbs%3Disch:1, accessed 10/11/10 World Winds, Volcano type, http://www.google.com/imgres?imgurl=http://library.thinkquest.org/03oct/00795/images/typesc.GIF&imgrefurl=h ttp://library.thinkquest.org/03oct/00795/voltypes.html&usg=__nK9mIC9OXp5jFrCNMotV8RbK3Ds=&h=236&w=26 5&sz=15&hl=en&start=10&zoom=1&um=1&itbs=1&tbnid=0X5M2vaCOvFQ1M:&tbnh=100&tbnw=112&prev=/im ages%3Fq%3Dvolcano%2Btypes%26um%3D1%26hl%3Den%26sa%3DG%26tbs%3Disch:1, accessed 10/11/10 USGS, fissure eruption, http://www.google.com/imgres?imgurl=http://volcanoes.usgs.gov/Imgs/Jpg/Photoglossary/fissure2_large.JPG&im grefurl=http://volcanoes.usgs.gov/images/pglossary/FissureEruption_examps.php&usg=__tisxHzembTW25tOjMB qDVKibH8=&h=500&w=800&sz=52&hl=en&start=20&zoom=1&um=1&itbs=1&tbnid=Q3EI9ndvjYGwaM:&tbnh= 89&tbnw=143&prev=/images%3Fq%3Dfissure%26um%3D1%26hl%3Den%26sa%3DG%26tbs%3Disch:1, accessed 10/11/10 USGS, fissure eruption, http://www.google.com/imgres?imgurl=http://volcanoes.usgs.gov/Imgs/Jpg/Photoglossary/fissure2_large.JPG&im grefurl=http://volcanoes.usgs.gov/images/pglossary/FissureEruption_examps.php&usg=__tisxHzembTW25tOjMB qDVKibH8=&h=500&w=800&sz=52&hl=en&start=20&zoom=1&um=1&itbs=1&tbnid=Q3EI9ndvjYGwaM:&tbnh= 89&tbnw=143&prev=/images%3Fq%3Dfissure%26um%3D1%26hl%3Den%26sa%3DG%26tbs%3Disch:1, accessed 10/11/10 Stratovolcano, http://en.wikipedia.org/wiki/Composite_volcano, accessed 10/11/10 Stratovolcano, http://en.wikipedia.org/wiki/Composite_volcano, accessed 10/11/10http://en.wikipedia.org/wiki/Composite_volcano Cinder cone, http://en.wikipedia.org/wiki/Cinder_cone_volcanoes, accessed 10/11/10 Cinder cone, http://en.wikipedia.org/wiki/Cinder_cone_volcanoes, accessed 10/11/10http://en.wikipedia.org/wiki/Cinder_cone_volcanoes How valcanoes work, http://www.geology.sdsu.edu/how_volcanoes_work, accessed 10/12/10 How valcanoes work, http://www.geology.sdsu.edu/how_volcanoes_work, accessed 10/12/10 http://www.geology.sdsu.edu/how_volcanoes_work

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