Pre-conference fieldtrip, October 17–18, 2019: Ediacaran, Lower Palaeozoic and landscapes within the Villuercas-Ibores-Jara UNESCO Global Geopark
2019; Spanish National Research Council; Volume: 75; Issue: 2 Linguagem: Espanhol
ISSN
1988-3250
AutoresSören Jensen, J. Javier Álvaro, Teodoro Palacios Medrano,
Tópico(s)Geological and Tectonic Studies in Latin America
ResumoespanolSe describen y figuran aqui varias unidades estratigraficas caracteristicas del transito Ediacarico-Cambrico entre Guadalupe y Castanar de Ibor, al norte del Geoparque de Villuercas-Ibores-Jara (Caceres). Se detallan los afloramientos (i) de las formaciones de Castanar y Villarta (Grupo de Ibor, Ediacarico terminal y Terreneuviense), junto a su contenido en vendotenidos, sabelliditidos y arrecifes microbianos con Cloudina; y (ii) de la Formacion de San Lorenzo (Terreneuviense) y su contenido paleoicnologico. Por ultimo, se destaca el registro paleoicnologico de la Cuarcita Armoricana (Ordovicico Inferior), principalmente de Cruziana y Daedalus, que caracteriza algunos puntos de interes geologico (LIG) en el Geoparque. EnglishSeveral stratigraphic units characteristic of the Ediacaran-Cambrian transition between Guadalupe and Castanar de Ibor, north of the Villuercas-Ibores-Jara Geopark (Caceres), are described and illustrated here. The outcrops of (i) the Castanar and Villarta formations (Ibor Group, terminal Ediacaran and Terreneuvian), together with their content in vendotaenids, sabelliditids and microbial reefs with Cloudina; and (ii) the San Lorenzo Formation (Terreneuvian) and its palaeoichnological content, are detailed. Finally, the palaeoichnological record of the Armorican Quartzite (Lower Ordovician), mainly of Cruziana and Daedalus, which characterize some sites of geological interest (geosites) in the Geopark, are highlighted.
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