Villuercas Ibores Jara, Geoparque Mundial de la UNESCO

UNESCO Global Geopark Villuercas Ibores Jara

The Villuercas Ibores Jara, Geoparque Mundial de la UNESCO (Villuercas Ibores Jara UNESCO Global Geopark) is located in the south-east of the province of Cáceres in Extremadura, Spain. The main geologic structure is the Variscan orogeny, which has intensely folded and fractured Palaeozoic sediments. The inverted topography is characterized by elevated narrow synclines and depressed anticlines. The synclines contain Lower Palaeozoic siliciclastic rocks, especially the Armorican Quartzite, which resists erosion very well. The anticlines have Ediacaran greywackes, shale and carbonates, which are less resistant and thus form depressions. The rocks show traces of three orogenies, the Cadomian Orogeny, the Variscan Orogeny, and the Alpine Orogeny. The fossils show important events like the Cambrian Radiation, Ordovician Radiation, and the Ordovician mass extinction.