Lithosphere Quiz `1

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.