Bramadero-1 drill-core extracted during a mining exploration campaign in the Iberian Pyrite Belt. The rock is an andesitic hyaloclastite breccia.

Drilling is one of the most expensive and most important direct mineral exploration techniques: sampling at depth allows to locate and define the economic value of a mineralisation.

The drilling was carried out in 1997 by the company RIOMIN IBÉRICA S.A., in the area known as Cerro Bramadero, in the township of Paymogo (Huelva). Coordinates: UTM ETRS89, X=658.858, Y=4.176.590. Direction: N174°E. Dip: 60° S. Length: 295,45 m.

This drill-core was carried out to investigate a geophysical anomaly of 0,5 mgal in the Iberian Pyrite Belt (IPF), one of the most important metallogenic provinces in the world, which contains the highest known concentration of polymetallic sulphides in the earth's crust.

It is a representative drill-core of one of the lithologies of the FPI, selected in the development of the INTERREG-POCTEP "GEO-FPI" project carried out by the IGME for the geo-economic valuation of the FPI.