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6942100 
Journal Article 
The Villalba gold district (Lugo, NW of Spain) 
Martinez-Abad, I; Cepedal, A; Arias, D; Martin-Izard, A; , 
2011 
EDICIONES UNIV CATOLICA NORTE 
ANTOFAGASTA 
548-550 
WOS:000309699400179 
Located near the city of Villalba (Lugo, Spain), within the West Asturian Leonese Zone (Iberian Variscan Massif), three mineralized areas have been found in a 15 km long NNW-SSE oriented zone which is thus defined as a new gold district in the NW of the Iberian Peninsula: the Villalba Gold District. The mineralization is related to late-Variscan faults that controlled the intrusion of granitic bodies and later rhyolitic sub-volcanic dikes, and is hosted mainly by metamorphosed impure limestone and black slates, lower Cambrian in age. Two main types of deposit has been identified, one a gold skarn with Bi-Te-Au metal assemblage and the other low-temperature polymetallic mineralizations with Au-As-Sb and Ag-Pb-Zn +/- Cu +/- Au metal assemblages. The low-temperature mineralizations occur disseminated in altered host rocks and also infilling veins in at least two stages. The first mainly consists of fine grained gold-bearing sulfoarsenides, the gold mainly being refractory. This stage is partially replaced by the second one that consists of base metals and Pb/Sb/Ag sulphosalts. The different types of deposit, metal association and geochemistry signature observed allow us to propose a intrusion-related gold system model for the Villalba Gold District. 
Barra, F; Reich, M; Campos, E; Tornos, F; 
978-956-287-329-1 
11th SGA Biennial Meeting on Let's Talk Ore Deposits 
Antofagasta, CHILE