Geophysical imaging 1

This module aims to provide the basics of geophysical imaging of geological formations, both near the surface and at the lithosphere scale. We will focus here on seismological methods (volume and surface wave tomography, receiver functions, ambient noise), gravimetry, and magnetotellurics. We will also present the basics of seismic reflection (acquisition and processing). A case study seen in practical work will highlight the importance of combining these methods to best describe the environment and its properties, particularly in terms of fluids.

• Understand the principles of seismic/seismological, gravimetric, and magnetotelluric geophysical methods
• Basic knowledge of signal processing
• Basic knowledge of direct and inverse problems
• Be able to interpret geophysical data in conjunction with a case study

• Wave properties (amplitude, frequency, wavelength, speeds, reflection, and refraction, etc.)
• Ohm's law, resistance, current intensity, and voltage
• Newton's first law, concept of the geoid and gravimetric anomalies

Continuous assessment.

• Understand the principles of geophysical methods:
- seismic/seismological
- gravimetric
- electrical and magnetotelluric
• Concepts of direct and inverse problems
• Know how to interpret geophysical data in conjunction with a case study