RT Journal Article T1 Evolución del sistema fluvial Jarama-Lozoya-Guadalix durante el Plioceno final y el Cuaternario T1 Upper Pliocene-Pleistocene evolution of the Jarama-Lozoya-Guadalix fluvial system A1 Torres, Trinidad de A1 Cobo, R. A1 García Alonso, P. A1 Grün, R. A1 Hoyos, M. A1 Julià, Ramón A1 Llamas, J. A1 Soler, Vicente AB This paper deals with the Jarama-Lozoya-Guadalix fluvial system evolution during the Pliocene and Pleistocene times. Duringt the Upper Pliocene and Lower Pleistocene time the Lozoya river was under incission and fluviokarst regimen; at the Middle Pleistocene beginning time (Cromer) after a local tectonic event, the jarama river shifted northwards and Lozoya river filled the "Huesos" cave with large amounts of mammal remains. Redueña alluvial fans were still active during the Upper Riss time, but because of local titling later became unactive PB Sociedad Geológica de España YR 1994 FD 1994 LK http://hdl.handle.net/10272/13787 UL http://hdl.handle.net/10272/13787 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 15 jun 2026