The role of extensional detachment systems in thinning the crust and exhuming granulites: analogies between the offshore Le Danois High and the onshore Labourd Massif in the Biscay/Pyrenean rifts

Special Issue Orogen lifecycle: learnings and perspectives from Pyrenees, Western Mediterranean and analogues

Open Access

Fig. 3

A. Geological map of the Labourd Massif (modified after Genna, 2007), showing the main structural features and tectono-sedimentary units. Tectono-sedimentary breccias after Masini et al. (2014). B. Cataclasites affecting the Ursuya granulites, near the village of Bonloc. C. South-dipping foliation and boudinage related to the Louhossoa shear zone cross-cut by north-dipping extensional faults. D. Geological cross-section across the Labourd Massif showing the major structures and tectono-stratigraphic units (after Lescoutre et al., 2021).

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