Volcanoes Volcanoes Kim Lachler Updated 11/14 NCES 6.E.2.2
Jan 01, 2016
VolcanoesVolcanoes
Kim Lachler
Updated 11/14
NCES 6.E.2.2
Eruption typesEruption types
Eruption typesEruption types
Type 1Type 1
small amount of gas is small amount of gas is trapped undergroundtrapped underground
Not much pressure buildupNot much pressure buildup
Lava oozes out in a calm, Lava oozes out in a calm, steady flowsteady flow
Most gentle type of Most gentle type of eruptioneruption
Eruption typeEruption type
Type 2Type 2
Small buildup of gas causes a Small buildup of gas causes a noisy explosionnoisy explosion
Lava is thrown several hundred Lava is thrown several hundred feet in the airfeet in the air
Not as dangerous as some other Not as dangerous as some other typestypes
Most common on landMost common on land
Eruption typesEruption types
Type 3Type 3
Sticky magma plugs up a Sticky magma plugs up a volcano’s openingvolcano’s opening
Gas builds up, causing pressureGas builds up, causing pressure
Explosion can throw debris as high Explosion can throw debris as high as nine miles into the airas nine miles into the air
Smaller explosions can occur for Smaller explosions can occur for days, months, or years after the days, months, or years after the eruptioneruption
Type of eruptionType of eruption
Type 4Type 4
Magma plugs up a volcano’s openingMagma plugs up a volcano’s opening
Pressure builds up behind the plugPressure builds up behind the plug
Blast can throw debris more than 15 Blast can throw debris more than 15 milesmiles
into the airinto the air
Most dangerousMost dangerous
Parts of a mountain can be blown offParts of a mountain can be blown off
Lava typesLava types
AaAa
lava pours out quickly and forms a brittle crust lava pours out quickly and forms a brittle crust
as it continues to flow it cause the crust to tear as it continues to flow it cause the crust to tear into jagged piecesinto jagged pieces
Lava_on_Land_and_in_Water.mov
Lava typesLava types Pahoehoe Pahoehoe
lava pours out slowly like waxlava pours out slowly like wax
it is glassy with wrinklesit is glassy with wrinkles
Lava typesLava types
Pillow lavaPillow lava
forms when lava erupts underwater forms when lava erupts underwater
forms round lumpsforms round lumps
Lava typesLava types
Blocky lava Blocky lava
lava oozes out into heaps forming blocky lava oozes out into heaps forming blocky chunkschunks
Volcano typesVolcano types
Shield volcanoesShield volcanoes
large, broad, gently sloping sides, lava flows easilylarge, broad, gently sloping sides, lava flows easily
formed from build up of layersformed from build up of layers
Types_of_Volcanoes.movVolcanoe type.mov
Volcano typesVolcano types Cinder Cone volcanoesCinder Cone volcanoes
small, steep cones formed from lava that dropped small, steep cones formed from lava that dropped from the air after an explosive eruptionfrom the air after an explosive eruption
short lived explosionsshort lived explosions
Volcano typesVolcano types
Composite volcanoes (Stratovolcanoes)Composite volcanoes (Stratovolcanoes)
steep sided mountains, where plates collided. Has steep sided mountains, where plates collided. Has alternating layers of lava and rock.alternating layers of lava and rock.
Mt. Fuji, Japan
Volcano typesVolcano types
Fissure eruptions Fissure eruptions
oozes from cracks in the earth’s surface oozes from cracks in the earth’s surface
The_Ring_of_Fire.mov
BibliographyBibliography
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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=0CD4QsAQwAw, accessed 10/11/10, accessed 10/11/10
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03oct/00795/images/typesc.GIF&imgrefurl=http://library.thinkquest.org/03oct/00795/03oct/00795/images/typesc.GIF&imgrefurl=http://library.thinkquest.org/03oct/00795/voltypes.html&usg=__nK9mIC9OXp5jFrCNMotV8RbK3Ds=&h=236&w=265&sz=15&hl=en&start=1voltypes.html&usg=__nK9mIC9OXp5jFrCNMotV8RbK3Ds=&h=236&w=265&sz=15&hl=en&start=10&zoom=1&um=1&itbs=1&tbnid=0X5M2vaCOvFQ1M:&tbnh=100&tbnw=112&prev=/images%3Fq0&zoom=1&um=1&itbs=1&tbnid=0X5M2vaCOvFQ1M:&tbnh=100&tbnw=112&prev=/images%3Fq%3Dvolcano%2Btypes%26um%3D1%26hl%3Den%26sa%3DG%26tbs%3Disch:1, accessed 10/11/10%3Dvolcano%2Btypes%26um%3D1%26hl%3Den%26sa%3DG%26tbs%3Disch:1, accessed 10/11/10
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