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?
- Heat flow - measured on continents over 100 years ago
- Low fluxes of heat escaping Earth's crust
- If derived from radioactive decay in crustal rocks, there should be more heat from continents than from ocean crust as it is thicker
- Measurements across both continents and oceans indicate much is escaping heat from the interior as ocean fluxes are larger
- Thus, heat flows from the mantle