Plate tectonics Crossword

What was the name of Alfred wegeners hypothesis that states that the states once formed as a single land mass
A long under sea mountain chain with a steep narrow valley at its center
Process by which a new oceanic lithosphere forms as magma rises
The study of the alignment of magnetic minerals in rock
The theory that explains how large pieces of the lithosphere
The solid outer layer of earth that consist of the crust and the ridgid upper part of the mantle
The solid plastic layer of the mantle beneath the lithosphere made of mantle rock
Boundary between tectonic plates that are moving away from each other
Boundary between tectonic plates that are colliding
Boundary between tectonic plates that are sliding past each other
The process by which earths crust breaks apart
A piece of lithosphere that has a unique geological history
The process by which supercontinents form and break apart over millions of years
The supercontinent that formed 300 million years ago
The single large ocean that covered earths surface during the time the supercontinent Pangaea existed