| Materials | Directions | % number of fractures | Directions | % cumulated in length of fractures |
| Geological map | N70˚-N80˚ | 17% | N70˚-N80˚ | 28% |
| N60˚-N70˚ | 14% | N60˚-N70˚ | 13% | |
| N50˚-N60˚ | 12% | N50˚-N60˚ | 10% | |
| N90˚-N100˚ | 9% | N130˚-N140˚ | 8% | |
| N80˚-N90˚ | 8% | N80˚-N90˚ | 8% | |
| Autres | <5% | N120˚-N130˚ | 7% | |
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| N40˚-N50˚ | 6% | |
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| Autres < 5% | ||