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20 Cards in this Set

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__________ is a type of volcanic zone where located along CONVERGENT plate boundaries

Subduction

___________ is the type of volcanic zone where located along DIVERGENT plate boundaries

Mid ocean ridges

_____ lava is lighter in color when hardened, has a high silica content, is common in continental crust, and cooler, thicker, and larger amounts of has is trapped

Felsic

A ______ is an opening on the earths surface through which magma and gasses are released

Vent

Great ________ keeps rocks solid even in the high temperature asthenosphere

Pressure

______ is liquid rock under the earths surface

Magma

In the lower mantle rocks are below

In the lower mantle are rocks below their ________

Melting point

______ and pressure deep inside the earth are estimated because they cannot be directly measured

Temperature

_____ is the movement of magma towards or onto the surface

Volcanism

______ has a hardened shell exterior and a molten interior

Lava tubes

Magma that erupts onto the earths surface is called _____

Lava

A ________ is the structure formed by the vent and built up volcanic material

Volcano

_________ is the type of volcanic zone where fissures, or cracks that lava flows through

Mid ocean ridge

_______ lava is dark in color when it hardens, is rich in magnesium and iron, makes up oceanic crust and where hot, thin gas dan easily escape

Mafic

______ flows out of vents and remains liquid for some time

Lava

_______ is the type if volcanic zone where the pacific ring of fire, a zone of major active volcanoes that surrounds the Pacific Ocean

Subduction

________ is the type of volcanic zone where Icelandic volcanoes above water can be noticeable

Mid ocean ridge

_______ is the type of volcanic zone not located along plate boundaries

Hot spots

__________ is a type of volcanic zone where is known for creating volcanic island chains like the Hawaiian volcanoes

Hot spots

Ghh

Gagging