Lecture10
Table of Contents
- Motion Inside Earth
- Why study Earth's internal motion?
- Why study Earth's internal motion?
- Why study Earth's internal motion?
- Why study Earth's internal motion?
- Why study Earth's internal motion?
- Why study Earth's internal motion?
- Why study Earth's internal motion?
- Why study Earth's internal motion?
- Why study Earth's internal motion?
- 10.1 How does convection work?
- Convection
- 10.1 How does convection work?
- 10.1 How does convection work?
- 10.1 How does convection work?
- 10.1 How does convection work?
- 10.1 How does convection work?
- 10.1 How does convection work?
- 10.2 What does mantle convection look like?
- 10.2 What does mantle convection look like?
- 10.2 What does mantle convection look like?
- 10.2 What does mantle convection look like?
- 10.2 What does mantle convection look like?
- 10.2 What does mantle convection look like?
- 10.2 What does mantle convection look like?
- 10.2 What does mantle convection look like?
- 10.2 What does mantle convection look like?
- 10.3 How does outer-core convection generate the magnetic field?
- 10.3 How does outer-core convection generate the magnetic field?
- 10.3 How does outer-core convection generate the magnetic field?
- 10.3 How does outer-core convection generate the magnetic field?
- 10.3 How does outer-core convection generate the magnetic field?
- 10.3 How does outer-core convection generate the magnetic field?
- 10.3 How does outer-core convection generate the magnetic field?
- 10.3 How does outer-core convection generate the magnetic field?
- 10.4 How do we know ... Earth's core is a dynamo?
- 10.4 How do we know ... Earth's core is a dynamo?
- 10.4 How do we know ... Earth's core is a dynamo?
- 10.4 How do we know ... Earth's core is a dynamo?
Text and Images from Slide
10.2 What does mantle convection look like?
- Mantle convection explains why heat flow is greater through the seafloor than through continents, and why decompressive melting forms magma.
- Mantle convection occurs because upward-moving rock expands more by decompression than it contracts by cooling and remains hotter and less dense than its surroundings—it rises. Likewise, sinking mantle compresses.