... and other photos of possible interest
Killer debris flow, must have been deafening while it was running. The patterns in the rock are folds formed in metamorphic rocks when sedimentary layers are buried and heated, then subjected to tectonic forces. In your case the tectonic forces are from the African plate subducting under the Eurasian plate. The rocks become plastic and deform by folding instead of fracturing in a brittle manner. The rock would be called Gneiss.