Navigating gravity ...

Gravity lectures

1. Introduction to gravity in geophysics
2. Gravity variation and maps on different scales
3. Gravitational potential and the geoid
4. Gauss, excess mass, simple shapes
5. Instruments and gravity processing
6. Density and gravity anomalies
7. The terrain correction

Gravity on Earth and other planets

• Gauss's Law
• The shape of Earth
• Gravitational acceleration due to earth tides

Gravity anomalies from simple shapes

• Gravity anomaly due to a Bouguer slab
• Gravity anomaly due to a semi-infinite slab
• Gravity anomaly due to a vertical fault
• Gravity anomaly due to a dipping fault
• Gravity anomaly due to a vertical thin rod
• Gravity anomaly due to a horizontal cylinder
• Gravity anomaly due to a sphere

Gravity anomalies using basic models

• Best-fit density of a sphere by inversion
• Gravity anomaly due to a buried vertical-sided prism (gbox model)
• Gravity anomaly of 2D polygon in vertical cross-section (talwani model)
• Excess mass associated with a gravity anomaly
• Gravity anomaly associated with a sedimentary basin (bott's model)
• Modelling gravity at Aso Caldera (grav-parallel)