Nueva interpretación de la geología de la mina romana de Las Médulas. El Bierzo, León

1998; Issue: 25 Linguagem: Inglês

ISSN

2173-6545

Autores

M A Hacar, José Luis Pagés Valcarlos, Ángela Alonso,

Tópico(s)

Archaeological and Geological Studies

Resumo

In the Las Medulas 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

Referência(s)