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a mountain that forms when magama is forced to the earths surface |
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magma that flows onto the earths surface |
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rivers of Lava that come from non-explosive volcano erruptions |
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Cloudes of hot debris that shoot out of a volcano sometimes at supersonic speeds! -No Lava, but millions of chuncks of magma that harden in the air -dust sized particles that can circle the globe for years! -May cause volcano to sink and be smaller in size |
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A reservoir of moulton rock (magma) below the earth's surface, it's connected to the surface by a vent. |
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the opening of an eaths surface through which volcanic material comes out of. |
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Consists of rock fragments, comes from explosive erruptions |
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Ranges from thick to thin |
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Cool stiff lava that can't travel far from its sorce. So thick that it can barley move accross the ground |
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Flows slowly, like wax dripping from a candle. Forms a glassy sruface with rounded wrinkles. |
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A hawiian word reffering to a type of lava with a jagged crusty surface |
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Forms when lava errupts under water. Forms round lumps that looks like pillows. |
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the largest piece of pyroclastic material.Solid rock. |
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Large blobs of magma that hardens in the air |
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means "little stones" in Latin. Little bits of hardened magma. |
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the gasses in stiff magma |
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Volcanic ash flows and fallout |
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clouds of ash flow down a hill at tremendous speeds |
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Built from layers of lava repeated non-explosive erruptions. Has Non-Explosive erruptions. Can be enormous
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The worlds largest mountian and volcano, it's a shield volcano |
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Smaller colcanoes only made out of pyroclastic material. Has explosive erruptions.
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Composite or Strata Volcano |
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The most commen type of volcano, has both explosive and non-explosive erruptions.
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A funnle shaped pit at the top of the central vent |
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a large landform on the top of a volcano formed from cool lava. |
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result from tremendous amount of lava errupting from fissures. |
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the tempature in the mantle is constant, the rock is hot but technically not a liquid. This is due to alot of pressure, with this, magma forms. |
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most volcanos occur at tectonic plate boundries, the ring of fire has alot of volcanos. |
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Volcanos at Divergent Boundries |
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A rift that forms in an area where plates are seperated, presure is released and magma comes out, forming a volcano. |
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Volcanos at convergent boundres |
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the plates squeeze togeather forming a volcano. |
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Volcanos that have not errupted in history and probobly will not errupt |
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Volcanos that are not currently errupting but have in some time in recorded history. |
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Volcanos that are in the prosess of errupting or showing signs of it. |
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Bulges in the volcanos slope may form as magma putshes agents it inside the volcano. |
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