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Andean Porphyries 2017
Porphyry Cu & Au in the Andes
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[Tour Group at Collahuasi]
With Minera Collahuasi geologists at 4090 m a.s.l. in the Rosario pit at Collahuasi, 180 km SE of Iquique and 5 to 10 km west of the border with Bolivia. From left: Mauricio Peralta (Minera Collahuasi); Rodrigo Castagno (Superintendent Mine and Exploration Geology, Minera Collahuasi); Doug Kepert (Fortescue Metals Group, Australia); Cameron Quinn (Fortescue Metals Group, Australia); Dana Olafson (Fortescue Metals Group, Australia); Daisuke Ariga (JOGMEC, Japan); Sergio Barassi (Bafermin, Chile - Tour Leader); Sergio Rodríguez (Servicios Especializados Penoles, Mexico); and Edison Botto, (Minera Collahuasi). The group is standing in front of a massive bornite vein at the bottom of the Rosario pit.       Image provided by Sergio Barassi.
   The group were given a very comprehensive visit including presentations, pit visit and core inspection of representative drill holes. They then returned to Iquique in the evening to spend the night.
   The following day was more relaxing, beginning with a late start and a drive to Calama of around 5 hours to arrive in the mid-afternoon.
   On Thursday 27 April, the group was given an overview of the Chuquicamata open pit, which is ~10 km north of Calama, and an opportunity to study the geology, alteration and mineralisation of the Codelco Chuquicamata mine in drill core.

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