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Tyler Evans 2

Across
Deep faulted structure found along axes of divergent boundries
Hypothesis that continents were once all joined together
Proposed supercontinent that 200 million years ago began to break apart
Mass of hotter than normal mantle material that ascends toward the surface
Mountains formed by volcanic activity
Chain of volcanic islands located by a trench
Boundry in which two plates move together
Theory that Earth's outer shell consists of individual plates
Chain of mountains extending the length of the ocean
Oceanic crust sinks beneath a trench and back into the mantle
Trenches form the deepest part of the oceans
Down
Plate tectonics produce new ocean lithosphere
Study of change in Earth's magnetic field
Boundry in which two plates slide past each other
Motion of matter resulting from changes in temperature
Electronic depth sounding machine
Mechanism that may contribute to plate motion
Mechanism that contributes to plate motion
One of numerous rigid sections of the lithosphere that moves as a unit