RT Journal Article T1 Nuevos datos microestructu rales sobre la existencia de deformaciones precámbricas en la Sierra de la Demanda (Cordillera Ibérica) T1 New microstructural data on the existence of precambrian deformations in the Sierra de la Demanda (Iberian Range) A1 Ábalos, Benito AB Microstructural surveying of pebbles of the early Cambrian «Anguiano Conglomerates» permits to recognize a variety of microstructures and textures that resulted from syn-metamorphic (up to 400°C, low-temperature greenschists facies) ductile deformations. The source area of the conglomerates was likely a Neoproterozoic basement that recorded the imprint of the Cadomian orogeny and that contained penetratively deformed metamorphic rocks in addition to the arc-related ingeous suites that have been detected or inferred so far in other realms of the northern Iberian Massif PB Sociedad Española de Geología YR 2001 FD 2001 LK http://hdl.handle.net/10272/9705 UL http://hdl.handle.net/10272/9705 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026