The Verde deposit is an early Miocene gold-bearing porphyry located in the Refugio property within the Maricunga Belt. Lithological types within the deposit include a coarse-grained dacitic porphyry, a fine-grained dioritic porphyry and an intrusive breccia formed at the interface between both. There are other dacitic porphyries with post-mineralization intrusion. These intrusive rocks are covered by middle Miocene dacitic flows and pyroclastics of La Laguna volcano. The hypogene alteration includes an early phase: (high temperature, late magmatic) characterized by a chlorite-pyrite-magnetite assemblage and weak copper mineralization. Silicification occurred afterwards in many discrete, gold bearing episodes, the principal one being the development of massive silica with later superimposed quartz veining events. Argillic alteration, marginal to the silicified core, unrelated to gold mineralization and characterized by partial to total alteration of the rock to a clay-pyrite assemblage, occurred at the end of the alteration sequence. Exploration and subsequent evaluation of reserves have concluded in a positive economic feasibility. Geological reserves of 216 million tons at a grade of 0,88 grams per ton containing 190 tons of gold at a cut-off rate of 0,5 grams were identified, of which 166 tons of gold are exploitable.