This field trip will provide an opportunity to explore some of the scenery and geology of the Villuercas-Ibores-Jara Geopark. Planned stops include examination of upper Ediacaran deep-water sediments; Cloudina-bearing carbonates in the area of Castañar de Ibor; examination of block containing type material of Cloudina carinata in the Cañamero visitors centre; and Ordovician Armorican Quartzite with Daedalus and Cruziana. A more detailed and complete itinerary will be presented in the third circular.
Clock-wise from upper left: Detail of block with type material of Cloudina carinata, to be housed in the geopark visitors centre, Canñamero; filamentous fossils of a type observed in Ediacaran-Cambrian transitional beds; vertically oriented lower Ordovician trace fossil Daedalus; late Ediacaran carbonates with Cloudina close to Castañar de Ibor.
During this field trip a range of upper Ediacaran sedimentary environments within the south-western part of the Central Iberian Zone will be examined.
October 21. “Weesenstein-Orellana glaciation” in the area of the Orellana dam.
October 22. Cloudina-microbial buildups developed on an unstable platform locally uplifted by the influence of the Cadomian Orogeny, Villarta de los Montes.
October 23. Ediacaran-Cambrian transition in the Huso River and uncompleted rail-way section “Via Verde de la Jara”, La Nava de Ricomalillo, with trace fossils and Beltanelliformis carbonaceous compressions in offshore siliciclastics, and Cloudina-bearing slope aprons in nearby Arroyo de Cubilar
October 24. Arrocampo section with shallow-water carbonates interrupted by slope-apron breccia deposits overlain by siliciclastics containing Cambrian-type trace fossils.
A more detailed and complete itinerary will be presented in the third circular.
Clock-wise from upper left: Sediments of the “Weesenstein-Orellana glaciation”, area of the Orellana dam; Cloudina-bearing carbonates, Villarta de los Montes; Treptichnus pedum, Arrocampo; small Beltanelliformis and simple trace fossils, uncompleted rail-way section near La Nava de Ricomalillo.; aformentioned section, now the “green-way” (see “Via Verde de la Jara” ).