Earth’s Interior. C hapter 1 Section 1. Guide for Reading. What does a Geologist do?. What are the characteristics of Earth’s crust , mantle , and core ?. The Science of Geology. Geology is the study of planet Earth.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Chapter 1 Section 1
What does a Geologist do?
What are the characteristics of Earth’s crust, mantle, and core?
Geologyis the study of planet Earth.
Geologists are scientists who study the processes that create Earth’s features and search for clues about Earth’s history.
Forces are constantly changing the surface of the Earth
Earth looks different today than it did millions of years ago.
Constructive forces = Build up
Destructive forces = tear down
The deepest mine in the world is only 2.4 miles deep.
The center of the Earth is over 3728 miles deep!
Seismicwaves are energy waves that travel through Earth’s interior during earthquakes
1. The Lithosphere
2. The Mantle
3. The Core
The Lithosphereis the layer of the Earth that includes the Crust and the Upper Mantle
By the way, there are two types of crust, continental crust and oceanic crust.
Continental crust is mostly made of the rock Granite. It is not very dense but very thick!
Oceanic crust is mostly made of the rock Basalt. It is thinbut very dense!
The Upper Mantle is just hot solid rock
The Asthenosphere is the softer part of the Mantle. The rocks here are melted and can slowly stretch and flow. Under this layer the mantle becomes solid.
The Outer Core is liquid metal (iron and nickel).
The Inner Core is solid metal (iron and nickel).