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Parallel fold in the Cretaceous Tralonca Flysch. This fold belongs to the D3 local deformation event, occurring after the main greenschist-facies metamorphic peak. Axial-plane spaced cleavage is well-developed in shale layers, while it is nearly absent in limestone-rich layers.
PhotoID438

Parallel fold in the Cretaceous Tralonca Flysch. This fold belongs to the D3 local deformation event, occurring after the main greenschist-facies metamorphic peak. Axial-plane spaced cleavage is well-developed in shale layers, while it is nearly absent in limestone-rich layers.
PhotoID438

Photograph: Ivan Zibra

Reference: Zibra (2006). Late-Hercynian granitoid plutons emplaced along a deep crustal shear zone. A case study from the S. Lucia nappe (Alpine Corsica, France). PhD. thesis