7.1 Volcanoes and Plate Tectonics Flashcards
1
Q
Hotspot
A
A region of hotter than normal rocks in Earth’s mantle that may be the source of magma for some volcanoes in the interior of tectonic plates.
2
Q
Magma chamber
A
A pool of molten rock or partially molten rock in Earth’s crust, often beneath volcanoes.
3
Q
Pillow lava
A
A lava flow that has crystallized under water and has a structure resembling a pile of pillows.
4
Q
Volcanic arc
A
A line of volcanoes parallel to a deep-ocean trench.
