RT Journal Article T1 El sistema fluvio-lacustre de Añavieja: facies y evolución sedimentaria durante el Holoceno. Cordillera Ibérica. NE de España T1 The fluvio-lacustrine system of Añavieja: facies and sedimentary evolution during the Holocene.Iberian Range. NE of Spain A1 Pérez García, Antonio A1 Luzón, Aránzazu A1 Soria, Ana Rosa A1 Borrego, Ángeles G. A1 Holmes, Jonatan A1 Mayayo, María José AB The study of the Holocene sediments from AÑ1, AÑ2 and DV1 cores, drilled between Añavieja and Dévanos (Soria), has allowed to define nine sedimentary facies: black and grey lutites, brown lutites with carbonate nodules, phytoherms, yellow sands, 'yellow sands with tufa debris, yellow silts, black lutites with macrophyte remains and tufa debris, and gravels. These facies permit to interpret the Holocene as a fluvio-lacustrine area integrated by a shallow lake that passed downwards into a fluvial system with a high tufa development. The fluvial system corresponds to the barrage fluviatile model. Eleven new radiometric datings (14C and U/Th) allow to establish a precise correlation between cores and evidence noticeable changes in thickness for the Holocene series, from 6 m-thick in the lake to more that 20 m-thick in the pools between tufa barriers YR 2010 FD 2010 LK http://hdl.handle.net/10272/7867 UL http://hdl.handle.net/10272/7867 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026