1. Introduction 5
2. Presentation of profiles 6
3. Conventions 8
4. Description of results 8
4.1 Shape of anomalies 8
4.2 Effect on dip of the body 10
4.3 Effect of width B of the body 10
4.4 Effect of depth d of the body 11
4.5 Effect of tdepth extent t of the body 16
4.6 Comments on the restivity curves 17
5. Field examples 19
6. Conclusions 21
7. References 22