Plate Tectonics and Volcanoes Crossword

hypothesis that states the continents once formed a single landmass
scientist that proposed continental drift
long, undersea mountain chain with steep valley at it's center
the process which new oceanic lithosphere forms as magma rises to Earth’s surface and solidifies
study of alignment of magnetic mineral in rock, as it relates to the reversal of Earth’s magnetic poles
theory that explains how large pieces of the lithosphere move and change shape
solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle
solid, plastic layer of the mantle beneath the lithosphere
he boundary between tectonic plates that are moving away from each other
the boundary between tectonic plates that are colliding
he boundary between tectonic plates that are sliding past each other
the process by which Earth’s crust breaks apart
piece of lithosphere that has a unique geologic history and that may be part of a larger piece of lithosphere
supercontinent that formed 300 million years ago and that began to break up beginning 250 million years ago
single, large ocean that covered Earth’s surface during the time of Pangaea
movement or trembling of the ground that is caused by a sudden release of energy when rocks along a fault move
the sudden return of elastically deformed rock to its undeformed shape
the location where the first motion of an earthquake occurs
point on Earth’s surface directly above an Earthquake’s starting point or focus
a region of numerous, closely spaced faults
tracing of earthquake motion that is recorded by a seismograph
an instrument that records vibrations in the ground
measure of the strength of an earthquake
in Earth science the amount of damage caused by an earthquake
a giant ocean wave that forms after a volcanic eruption
liquid rock produced under Earth’s surface
any activity that includes the movement of magma toward or onto Earth’s surface
magma that flows onto Earth’s surface; the rock that forms when lava cools and solidifies