6 terms

Earth's Structure Chapter 5 Lesson 1

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volcano
Mountain created as liquid rock and ash erupt from inside the earth
magma
A molten mixture of rock-forming substances, gases, and water from the mantle
lava
Magma that reaches Earth's surface
Ring of Fire
A major belt of volcanoes that rims the Pacific Ocean
island arc
A string of islands formed by the volcanoes along a deep ocean trench
hot spot
An area where magma from deep within the mantle melts through the crust above it