Payré Estuary outcrop. (a) Picture of the cliff showing the erosive surface between SU2 and SU3, and barite-calcite-filled fractures that abut on normal faults. (b) Close up in SU2 of “teeth” shape calcite in vein crosscutting a barite-vein (underlined in red). (c) Stereographic projection of structure measured (bold black lines correspond to E-W “teeth” shape calcite-veins). See Table 1 for brittle structure nomenclature.