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Article dans une revue

Field measurements of the roughness of fault surfaces

Abstract : We recorded the height of a granitic fault surface as a function of position along one-dimensional profiles. We show that the profiles exhibit an "anisotropic" scaling invariance: self-affinity. The difference between the maximum and the minimum height, and the standard deviation of the height, over a length L are proportional to L½, where (• 0.84. Other properties such as the Return Probability distribution or the Power Spectrum of the profile comfort this result. This self-affne property is in good agreement with recent works on artificial fractured surfaces. Previous studies at field scale are consistent with this concept.
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Soumis le : jeudi 28 juillet 2022 - 15:17:26
Dernière modification le : mercredi 3 août 2022 - 04:06:20

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Jean Schmittbuhl, Sylvie Gentier, Stéphane Roux. Field measurements of the roughness of fault surfaces. Geophysical Research Letters, American Geophysical Union, 1993, 20, pp.639 - 641. ⟨10.1029/93gl00170⟩. ⟨hal-03739931⟩

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