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Plate Tectonics

Published on Nov 19, 2015

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PRESENTATION OUTLINE

Plate tectonics

Pieces of EARTH'S CRUST Are in constaNt motion anD DIVIDe INTO PIECEs
Photo by whiteworm

CONVECTION CURRENTS

CURRENTS IN THE MANTLE THAT MOVE THE PLATES

SLAB PULL

GRAVITY THAT PULLS ON SUBDUCTION ZONES TO MOVE THE PLATES

RIDGE PUSH

NEW CRUST FORMS AND PUSHES THE PLATES APART
Photo by Scot Nelson

DIVERGENT PLATE BOUNDARY

PLATES MOVE APART

AFRICAN RIFT VALLEY

RESULT OF A DIVERGENT BOUNDARY ON LAND

THE MID-ATLANTIC RIDGE

FROM UNDERWATER DIVERGENT BOUNDARY

Convergent Plate Boundary

Two plates collide

Mount Fuego

Volcanos form from Continental/Oceanic convergent boundaries

Mariana's Trench

Deep sea trenches form from Oceanic/Oceanic Convergent boundaries

Himalayas

Mountains form from Continental/comtinental plate boundaries

Subduction Zone

Where one plate slides under another when two plates collide

Deep ocean trench

A dip in earth's crust that lies over a subduction Zone

Puerto Rico Trench

An example of a deep sea trench

Transform Plate Boundary

Two plates slide past each other

San Francisco Earthquake

Happens on a transfom boundary

San andreas fault zone

Real world example of transform boundary