Browse > Article
http://dx.doi.org/10.9719/EEG.2017.50.1.73

A Survey Report on the Polymetallic Mineralization in the Oyon Mineralized District, Central Peru  

Lee, Jaeho (Korea Institute of Geoscience and Mineral Resources)
Kim, Injoon (Korea Institute of Geoscience and Mineral Resources)
Nam, Hyeong-tae (Korea Institute of Geoscience and Mineral Resources)
Publication Information
Economic and Environmental Geology / v.50, no.1, 2017 , pp. 73-83 More about this Journal
Abstract
The surveyed mines are located in a polymetallic vein, replacement, and skarn mineral district in the central Andes of Peru. Iscaycruz, which includes underground and open pit mines that produce zinc and lead concentrates, was the largest mineral deposit of an important group of base metal deposits in the Andes of central Peru. The deposits are sub-vertical seams of polymetallic ores(Zn, Cu, and Pb). These seams are hosted by Jurassic and Cretaceous sedimentary rock formation. The intrusion of igneous rocks in these formations originated metallic deposits of metasomatic and skarn types. The Raura mine is composed of polymetallic deposit of veins and replacement orebodies. The main sedimentary unit in the area is Cretaceous Machay Limestone. The Raura depression contains several orebodies each with different mineralization: predominantly Pb-Zn bearing Catuvo orebody; Ag-rich galena-bearing Lake Ninacocha orebody; Cu-Ag bearing Esperanza and Restauradora orebody. Huaron is a hydrothermal polymetallic deposit of silver, lead, zinc, and copper mineralization hosted within structures likely related to the intrusion of monzonite dikes, principally located within the Huaron anticline. Mineralization is encountered in veins parallel to the main fault systems, in replacement bodies known as "mantos" associated with the calcareous sections of the conglomerates and other favourable stratigraphic horizons, and as dissemination in the monzonitic intrusions at vein intersections.
Keywords
polymetallic mineralization; deposit type; resources and reserves; Oyon mineralized district; Peru;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Acosta, J., Bustamante, A., Cardozi, M., Heo, C.H. and Kim, E.J. (2013) Copper in Peru: Present status and future challenge. Econ. Environ. Geol., v.46, p.561-568.   DOI
2 Beckinsale, R. D., Sanchez-Fernandez, A. W., Brook, M., Cobbing, E. J., Taylor, W. P., and Moore, N. D., 1985, Rb-Sr whole-rock isochron and K-Ar ages for the Coastal batholith of Peru, in Pitcher, W. S., Atherton, M. P., Cobbing, E J., and Beckinsale, R. D., eds., Magmatism at a plate edge: The Peruvian Andes: London, Blackie, p. 177-202.
3 Bussel, M. A., Alpers, C. N., Petersen, U., Shepherd, T. J., Bermudez, C. and Baxter, A. N. (1990) The Ag-Mn-Pb-Zn Vein, Replacement, and Skarn Deposits of Uchucchacua, Peru; Studies of Structure, Mineralogy, Metal Zoning, Sr Isotopes, and Fluid Inclusions. Econ. Geol., v.85, p.1348-1383.   DOI
4 Clark, A.H., Farrar, E., Kontak, D.J., Langridge, R.J., Arenas, M.J., France, L.J., McBride, S.L., Woodman, P.L., Wasteneys, H.A., Sandeman, H.A. and Archibald, D.A. (1990) Geologic and geochronologic constraints on the metallogenic evolution of the Andes of Southeastern Peru. Econ. Geol. v.85, p.1520-1583.   DOI
5 Compania Minera Raura S. A., 2015, Raura Mine, 30p.
6 Grant, J.N., Halls, C., Sheppard, S.M. F. and Avila, W. (1980) Evolution of the porphyry tin deposits of Bolivia. Min. Geol. Spec. v.8, p.151-173.
7 Ishihara, S. (1981) The granitoid series and mineralization. Econ. Geol. 75th Anniversary Volume, p.458-484.
8 Lehmana, B., Ishihara, S., Michel, H., Miller, J., Rapela, C., Sanchez, A., Tistl, M. and Winkelmann, L. (1990) The Bolivian tin province and regional tin distribution in the Central Andes: a reassessment. Econ. Geol. v.8, p.1044-1058.
9 Los Quenuales, 2015, Mineral resources of Iscaycruz, 32p.
10 Megard, F., Noble, D.C., McKee, E. H., and Ballon, H., 1984, Multiple pulses of Neogene compressived deformation in the Ayacucho intermontane basin, Andes of Peru: Geol. Soc. America Bull., v. 95, p. 1108-1117.   DOI
11 Mukasa, S. B., and Tilton, G. R. (1983) Temporal relations and Pb systematic in plutonic rocks of the western and coastal cordilleras, Peru. Am. Geophys. Union Trans. v.64, p.321.
12 Pan American Silver Huaron S. A., 2015, Huaron Mine, 18p.
13 Rosenbaum, G., Giles, D., Saxon, M., Betts, P.G., Weinberg, R.F. and Duboz, C. (2005) Subduction of the Nazca Ridge and the Inca Plateau: Insights into the formation of ore deposits in Peru. Earth and planetary Science Letters, v.239, p.18-32.   DOI
14 Wilson, P. A., 1975, Potassium-argon age studies in Perú with special reference to the emplacement of the Coastal batholith: Unpub. Ph.D, thesis, England, Univ. Liverpool, 299p.
15 Sillitoe, R.H. (1976) Andean mineralization: a model for the metallogeny of convergent plate margins. Geological Association of Canada, Special Paper, 14, p.59-100.
16 Stoll, W.C. (1965) Metallogenic provinces of South America: mining magazine, p.112, 22-33 and 90-99.