coastal erosion by the cantabrian sea in northern spain

pedruquios madero costa quebrada cove sea flysch facies wavecut platform abrasion cliff stratification fold fault crevice coastal beach stratum erosion landform limestone marlstone formations geological cretaceous eroded materials sediments sedimentary rock turonian cenomanian lithological layers fracture weathered wave steep crest marine cantabrian coast displacement litoral landscape pielagos liencres broken cantabria spain northern rocks landforms action cliffs coves