Las Hoyas de la dehesa de Cañal (Salamanca, España), una labor minera antigua de oro secundario
- J. M. González de Carballo
- S. Barrios 1
- E. González-Clavijo 2
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1
Universidad de Salamanca
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2
Instituto Geológico y Minero de España
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ISSN: 0366-0176
Year of publication: 2018
Volume: 129
Issue: 1-2
Pages: 437-450
Type: Article
More publications in: Boletín geológico y minero
Abstract
The site known as Las Hoyas, in the municipal area of Pelayos (Salamanca), is a large open-cast mining pit of great antiquity, where sedimentary gold was exploited. Its typology corresponds to that used in traditional Roman mining, but nearby ruins belong to a Visigothic hamlet. The presence of several Roman settlements, roads and bridges in the area, joined to ruins with names of possible Roman origin, not yet studied, suggest the mine was active during the height of the Roman Empire. The sediments bearing the gold are continental of Cenozoic age (Oligocenic) and fill a tectonic groove of Alpine origin confined by SW-NE main faults and NW-SE secondary faults. The source area is the close reliefs placed to the SE, which are the first buttresses of the Spanish Central System.