Geothermometry, ore geochemistry and fluid flow in the Esperanza Vein, Huachocolpa District (Huancavelica, Peru)

Pérez-Puig Obieta, Cosme Rafael and Castroviejo Bolibar, Ricardo (2009). Geothermometry, ore geochemistry and fluid flow in the Esperanza Vein, Huachocolpa District (Huancavelica, Peru). In: "XX Meeting, European Current Research on Fluid Inclusions", 23-25 Septiembre 2009, Universidad de Granada.

Description

Title: Geothermometry, ore geochemistry and fluid flow in the Esperanza Vein, Huachocolpa District (Huancavelica, Peru)
Author/s:
  • Pérez-Puig Obieta, Cosme Rafael
  • Castroviejo Bolibar, Ricardo
Item Type: Presentation at Congress or Conference (Other)
Event Title: XX Meeting, European Current Research on Fluid Inclusions
Event Dates: 23-25 Septiembre 2009
Event Location: Universidad de Granada
Title of Book: ECROFI- XX Meeting, European Current Research on Fluid Inclusions
Date: 2009
Subjects:
Faculty: E.T.S.I. Minas (UPM)
Department: Ingeniería Geológica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The Esperanza Zn-Pb-Ag vein, owned by Compañía de Minas Buenaventura S.A.A., lies over 4000 to 4650 masl in the Western Cordillera of the Peruvian Central Andes. The Esperanza low sulphidation epithermal vein trends ~E-W along 1500 m; it dips to the South and can be followed to 350 m depth. As other veins of the district, like Teresita and Bienaventurada, it is hosted by intermediate to felsic volcanics (andesitic to dacitic compositions) of the Huachocolpa Group (Middle Miocene to Upper Pliocene). The mineralisation occurs mostly as open space filling related to fracture development during the Quechua III deformational event. Main ore minerals are sphalerite, galena, tetrahedrite, pyrite, chalcopyrite and Ag and Pb sulfosalts; quartz, barite and calcite are the main gangue minerals. Current production grades are ~5% Zn, ~8Oz/t Ag, ~3% Pb; usually very low Cu (mean ~0.04%).

More information

Item ID: 10975
DC Identifier: http://oa.upm.es/10975/
OAI Identifier: oai:oa.upm.es:10975
Deposited by: Biblioteca ETSI Minas y Energía
Deposited on: 04 Jun 2012 14:08
Last Modified: 20 Apr 2016 19:09
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