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Article Dans Une Revue Geophysical Research Letters Année : 1993

Field measurements of the roughness of fault surfaces

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Résumé

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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Dates et versions

hal-03739931 , version 1 (28-07-2022)

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