XXXII Curso Latinoamericano de Metalogenia UNESCO-SEG-SGA
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Participants of the UNESCO-SEG-SGA course, Quito, May 2014
Selected lectures were open to a larger public
Lecture (detail 1)
Lecture (detail 2)
The four poster sessions yielded lively discussion
Lab on typical ore and alteration samples and drill cores made available by Freddy Quijano and mining companies
High sulfidation epithermal Au-Ag-Ag deposit of Loma Larga (INV Metals)
Loma Larga. Native gold at an outcropping quartz ledge. Width of image: 3 cm
Typical Au-bearing sample at Loma Larga (IQD-122, ca 188 m). The sample pertains to a 12.8 m long portion with 20.8 g/t Au, 57.2 g/t Ag, 0.3% Cu).
It consists of residual quartz, replaced by fine pyrite, locally with a botryoidal texture; open spaces filled by barite.
The general fabric may correspond to a lapilli tuff being some of the vuggy textures after lapilli (consistent direction of flattening of open spaces).
Chief geologist Ivan Leiva explains the Gaby-Papa Grande Cu-Au porphyry project
Saprolite with recognizable stockwork of (oxidezed) sulfide-Au-bearing veinlets in hornblende porphyry at Gaby.
Machete was used to cut a clean surface
Visible Au in a quartz-sericite vein
VHMS deposit El Domo, Curipamba (Salazar Resources)
Typical ore of the VHMS deposit El Domo and equivalent unreplaced host rock
[Quito 2014] [Página central del Curso Latinoamericano de Metalogenia UNESCO-SEG-SGA]
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