Presentation is loading. Please wait.

Presentation is loading. Please wait.

The plates are pulled and pushed, created and recycled, by convection currents within a solid but hot, plastic mantle.

Published byТатьяна Глаголева Modified over 5 years ago

Similar presentations

Presentation on theme: "The plates are pulled and pushed, created and recycled, by convection currents within a solid but hot, plastic mantle."— Presentation transcript:

1 The plates are pulled and pushed, created and recycled, by convection currents within a solid but hot, plastic mantle.

2 Left: Oceanic crust is formed where hot rising magma pushes plates apart.
Below: Plates are destroyed through subduction back into the deep Earth (taking craters with them) 100 km

3 This recycling is not uniform for continents and oceans
This recycling is not uniform for continents and oceans. On average, oceanic crust is much younger than continental crust. On this colour-coded map, ages go from recent (red) to 180 m.yrs old (blue)... Where is old oceanic crust?

Download ppt "The plates are pulled and pushed, created and recycled, by convection currents within a solid but hot, plastic mantle."

Similar presentations

Theory of Plate Tectonics

Theory of Plate Tectonics
Plate Tectonics and the Structure of the Earth. The Structure of the Earth The Earth is made up of 3 main layers: Core Mantle Crust Inner core Outer Core.

Plate Tectonics and the Structure of the Earth. The Structure of the Earth The Earth is made up of 3 main layers: Core Mantle Crust Inner core Outer Core.
EARTH’S INTERNAL STRUCTURE AND MAGMA FORMATION PROCESSES.

EARTH’S INTERNAL STRUCTURE AND MAGMA FORMATION PROCESSES.
Earth Science Standard 3.a - Students know features of the ocean floor (magnetic patterns, age, and sea- floor topography) provide evidence of plate tectonics.

Earth Science Standard 3.a - Students know features of the ocean floor (magnetic patterns, age, and sea- floor topography) provide evidence of plate tectonics.
Sea-Floor Spreading Copy the following map of the ocean floor between continents. Label the parts of your map as we go along.

Sea-Floor Spreading Copy the following map of the ocean floor between continents. Label the parts of your map as we go along.
The Theory of Plate Tectonics

The Theory of Plate Tectonics
Plate Tectonics.

Plate Tectonics.
Formation of the Earth. Previous Theories  Continental Drift Theory  Developed by Alfred Wegner (1900’s)  Believed continents were once all combined.

Formation of the Earth. Previous Theories  Continental Drift Theory  Developed by Alfred Wegner (1900’s)  Believed continents were once all combined.
Lithosphere: Crust and solid upper mantle. Asthenosphere: Plastic, movable part of the mantle. Outer.

Lithosphere: Crust and solid upper mantle. Asthenosphere: Plastic, movable part of the mantle. Outer.
The Layers of Earth And Plate Tectonics. How do we know what the Earth is made of?

The Layers of Earth And Plate Tectonics. How do we know what the Earth is made of?
By: Kat Kenney, Jeff Hicks, and Carissa Blanco

By: Kat Kenney, Jeff Hicks, and Carissa Blanco
CATALYST OBJECTIVES DATE: 02/10/2015

CATALYST OBJECTIVES DATE: 02/10/2015
The Theory of Tectonic Plates Chapter 7 Section 3.

The Theory of Tectonic Plates Chapter 7 Section 3.
Plate Tectonics 22.4. Theory that explains the formation and movement of Earth’s plates Theory that explains the formation and movement of Earth’s plates.

Plate Tectonics Theory that explains the formation and movement of Earth’s plates Theory that explains the formation and movement of Earth’s plates.
Definitions. 1. CRUST The thin and solid outermost chemical layer of the earth above the mantle.

Definitions. 1. CRUST The thin and solid outermost chemical layer of the earth above the mantle.
Putting it together You know that our Earth is separated into moving plates You know that the continents are drifting and colliding BUT HOW?

Putting it together You know that our Earth is separated into moving plates You know that the continents are drifting and colliding BUT HOW?
6.3 The Plates Move Apart Mrs. Avant. Boundary Types O Divergent: occurs where plates move apart. Most divergent boundaries are found in the ocean. O.

6.3 The Plates Move Apart Mrs. Avant. Boundary Types O Divergent: occurs where plates move apart. Most divergent boundaries are found in the ocean. O.
PLATE TECTONICS Prentice Hall. Earth’s Interior  Crust  Ocean & Continent  Mantle  Lithosphere  Asthenosphere  Mesosphere  Core  Outer  Inner.

PLATE TECTONICS Prentice Hall. Earth’s Interior  Crust  Ocean & Continent  Mantle  Lithosphere  Asthenosphere  Mesosphere  Core  Outer  Inner.
The Structure of the Earth and Plate Tectonics. Structure of the Earth The Earth is made up of 3 main layers:  Core  Mantle  Crust Inner Core Outer.

The Structure of the Earth and Plate Tectonics. Structure of the Earth The Earth is made up of 3 main layers:  Core  Mantle  Crust Inner Core Outer.
Plate Tectonics Chapter 9. Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.

Plate Tectonics Chapter 9. Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.

Similar presentations

Ads by Google