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Plate Tectonics

Published on Nov 22, 2015

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PRESENTATION OUTLINE

Plate tectonics;
Pieces of the lithosphere are in slow constant motion.

Convection currents;
The flow that transfers heat through a fluid.

Slab pull;
The pull of gravity on a plAte that is being subducted.

Ridge push;
New less dense crust forming at divergent plate boundaries pushes older crust out of the way as older, Denser crust gets pulled away by gravity.

Divergent;
Plates move away from each other.

Rift Valley;
Land form that results from a divergent plate boundary.

Mid ocean ridge; under water landform that is caused by a divergent plate boundary.

Convergent plate boundary;
a convergent boundary, also known as a destructive plate boundary is an actively deforming region where two tectonic plates or fragments of the lithosphere move toward one another and collide.

OCEAN VS CONTINENT

OCEAN VS OCEAN

CONTINENT VS CONTINENT

Subduction zone; A subduction zone is the biggest smash-up on Earth, marking the collision between two of the planet's tectonic plates

Deep-o trench;
Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches.

Transform boundary; when two plates slide past each other

RESULTING EVENT FROM TRANSFORM BOUNDARY

TRANSFORM BOUNDARY

Convergent plate boundary