Studied by 9 people
The process of the separation of earth’s super continent.
Continental Drift
Bathymetric Soundings
depth measurements
What causes a ridge in the ocean?
Mantle Plume
Paleomagnetism
When magma cools and crystalizes, the alignment of the magnetic field is locked in place in the particles of the rocks.
Subduction
Oceanic crust has a greater density than continental crust, the thinner oceanic crust dives beneath the lighter, thicker, and more buoyant ocean crust. Forms a subduction zone which appears as a giant trench.
Divergent
Plates are moving apart ← →.
Causes mid-ocean ridges(O-O), earthquakes, and rift valleys (C-C).
Convergent (O-C)
→ ← plates are moving towards each other. Causes volcano mountain ranges, subduction zones, trenches, and earthquakes.
Convergent (C-C)
→ ← plates are more towards each other. Causes folded mountains and earthquakes.
Convergent (O-O)
→ ← plates are moving towards each other. Causes volcano islands and ocean trenches.
Transform Boundary
⇅ - plates move back and forth horizontally past each other.
