3D Geological Model of the Touro Cu Deposit, a World-Class Mafic-Siliciclastic VMS Deposit in the NW of the Iberian Peninsula

Autor: Jorge Fuertes-Blanco, A. Martin-Izard, Pablo Gumiel, Pablo Nuñez, Daniel Arias, Cesar Castañón, Mónica Arias
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Minerals
Volume 11
Issue 1
Scopus
RUO: Repositorio Institucional de la Universidad de Oviedo
Universidad de Oviedo (UNIOVI)
RUO. Repositorio Institucional de la Universidad de Oviedo
Universidad de las Islas Baleares
Minerals, Vol 11, Iss 85, p 85 (2021)
ISSN: 2075-163X
DOI: 10.3390/min11010085
Popis: The Touro volcanogenic massive sulfide (VMS) deposit is located in the NW of the Iberian Variscan massif in the Galicia-Trá
s-os-Montes Zone, an amalgamation of several allochthonous terrains. The Ó
rdenes complex is the most extensive of the allochthone complexes, and amphibolites and paragneisses host the deposit, characterized as being massive or semimassive (stringers) sulfides, mostly made up of pyrrhotite and chalcopyrite. The total resources are 103 Mt, containing 0.41% copper. A 3D model of the different orebodies and host rocks was generated using data from 1090 drill core logs. The model revealed that the structure of the area is a N&ndash
S-trending antiform. The orebodies crop out in the limbs and in the hinge zone. The mineralized structures are mostly tabular, up to 100 m in thickness and subhorizontal. Based on the petrography, geochemistry and the 3D model, the Touro deposit is classified as a VMS of the mafic-siliciclastic type formed in an Ordovician back-arc setting, which was buried and metamorphosed in Middle Devonian.
Databáze: OpenAIRE
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