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Types of Volcanoes

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by

Carson Kimball

on 20 October 2016

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Transcript of Types of Volcanoes

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VOLCANOES!!!
Positive/Good impacts
Provide nutrients for soil around
Volcanoes. Volcanic ash contains
Minerals. Makes Pumice and other
rock.
Mount Etna date:I669 in Italy impacted area sicily
Composite Volcanoes
Commonly called StratoVolcanoes are typically deepsided. Symmetrical cones of large dimension built of alternating layers of lava flows,Volcanic ash, cinders,blocks, and bombs!
THE END

Magma is composed of molten rock and is stored in the earth's crust.Lava is magma that reaches the surface of our planet through a volcanoes vent!
Here are
some extra assets :
FEEL FREE TO COPY & PASTE THEM!
Cindercone Volcanoes
CinderCone Volcanoes
Cindercone Volcanoes
they are built from particles and blobs of congealed lava ejected from a single vent.As the gas changed lava is blown violently into the air it breaks into small fragments that solidify and fall as cinders around the vent!
Examples:
Mount St.Helens, Mount Fugi.Mt.Rainer,and MOUNT VESUVIUS
Examples:
ParitocinWizard Island,and Lava Butte
NEXT
NEXT
Shield Volcano
They have runny lava the doesnt stop. They known for there large size and low profile.
Examples: Mauna Loa, Mauna Kea, Elta ale, Kilawea!
Negative/Bad impacts
It is a threat to people. Can block out sun and sufficate people. Can cause Acid rain
Volcanic Events
Mt. Vesuvius date 79AD in italy impacted area Naples
Thera date 1600BC in Greece impacted area Greek island of Thera
Hatepe date 180 AD in New Zealand impacted area Lake Taupo
Krakatoa ion 1883 in indonisia impacted area Sumatra
what is the diffrence between magma and lava?
what are the three main components that affect volcanic eruptions?
Temparture
viscosity
dissolved gases in magma
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