RT Journal Article T1 Nueva interpretación de la geología de la mina romana de Las Médulas. El Bierzo, León T1 The gold roman mine of Las Médulas. (El Bierzo, León, Spain) A new geological interpretation A1 Hacar, M. A1 Pagés Valcarlos, J. L. A1 Alonso, Ángela AB In the Las Médulas site, red tertiary facies were exploited for gold during roman times. That facies, mainly composed by conglomerates and sandy silts have been interpreted as the final phase of infilling of an endorreic, tectonically controlled basin. However, a careful study of the geometry and organisation of the different units points out a new interpretation: that the serie was the consequence of the evolution of a fluvial system which progressively entrenched, resulting in a sequence of at least seven levels of terraces, where erosive phases alternating with aggradational periods can be distinguished PB Sociedad Geológica de España YR 1998 FD 1998 LK http://hdl.handle.net/10272/10186 UL http://hdl.handle.net/10272/10186 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026