Cliff with remarkable stratifications, folded layers of marls and limestones of the Lower Jurassic, above Bassey near Bourg d'Oisan, Ecrins NP, Alps, France

mountain winter geology fracture (geology) jurassic overview alps (range) isère 38 cliff limestone national park geologic stratum ecrins national park january mountains fractures (geology) break breaks overviews global sight global sights full length cliffs national parks sensitive natural areas geologic strata area temperate season seasons atmosphere science landform earth's crust secondary era era shot world mountain and summit dauphiné province rhône alpes auvergne rhône alpes france european union europe mineral matter matter (substance) environment protection environment management biodiversity management environment geological formation ecrins (massif)