Earth's Geologic Structure

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By: vishwash2603 (10 month(s) ago)

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earth’s geologic structure : 

earth’s geologic structure JAY ALLEN ALEX CALL

What Is Geologic Structure? : 

What Is Geologic Structure? Geologic Structure is the study of the components that make up a certain object Earth’s geologic structure is composed of different layers ranging from five to 6,360 kilometers thick

Layers of the Earth : 

Layers of the Earth Crust Lithosphere Mantle Upper Mantle Lithosphere Athenosphere Lower Mantle Mesosphere Core Inner Core Outer Core

Earth’s Layers : 

Earth’s Layers Crust Mantle Core Lithosphere Asthenosphere Mesosphere Outer Core Inner Core

Crust : 

Crust Surface Layer Part of Lithosphere Contains all tectonic plates Millions of years ago Earth consisted of one supercontinent- Pangea

Mantle : 

Mantle Consists of dense, iron rich materials Includes Asthenosphere Contains Slow-flowing rock Also encompasses Mesosphere Contains solid rock

Core : 

Core Two Components Outer Core Shell to Inner Core Generates Magma Contains Nickel and Liquid Iron Inner Core Contains Nickel and Solid Iron

Seismic Waves : 

Seismic Waves Predecessors of Earthquakes Vibrations travel through all layers of Earth Direction and speed are constantly changing Assists in determining the geologic structure Also helps in revealing Earth’s history Outer Core

Bibliography : 

Bibliography Structure of the Earth - Wikipedia, the free encyclopedia. (n.d.). Retrieved February 4, 2009, from http://en.wikipedia.org/wiki/Structure_of_the_Earth. Todd, R. (2002). Holt Science and Technology, Texas Edition Grade Eight. Austin, Texas: Holt, Rinehart, and Winston. (2008). The World Book Encyclopedia 2008. Buffalo, NY: World Book.

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