In this lesson, we'll explore the gravity data from a few different locations and discuss what it can tell us about the isostatic state of the lithosphere.
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The lesson is designed for graduate and undergraduate students who have a background in geology and geophysics and some knowledge of the theoretical concepts of gravity anomalies and isostasy. The overall goal is to introduce learners to real world examples and data that illustrate the theoretical concepts that they have already acquired. We'll do this by providing learners with data and the tools for exploring it interactively. The full lesson will take approximately 1.5 hours to complete.
- Reinforce theoretical concepts with real world examples
- Explore the relationship between plate tectonics, isostasy, and the gravity
- Visualize glacial isostatic rebound and flexure of the lithosphere at convergent margins and their effects on the Earth's gravity field
This lesson assumes basic knowledge of:
- The layering of the Earth (crust, mantle, core, lithosphere, asthanosphere) <Wikipedia> <SEG wiki>
- The Earth gravity field (gravitational and rotational components) and Normal gravity
- The gravity disturbance
- The gravitational effect of topography and the Bouguer correction
- Isostasy (Airy–Heiskanen, Pratt-Hayford, and Vening Meinesz models) and it's relationship with the topography-free gravity disturbance
Where to go when you're done with this lesson.
Describe the data we'll use.
Describe the software.
How to run things online.
Install instructions to run things locally.
Where to find the lesson plan. How long this lesson will take. LESSON_PLAN.md.
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