Uchucchacua Mine, Oyon Province, Lima Department, Peru
|Latitude & Longitude (WGS84):||10° 37' 23'' South , 76° 41' 17'' West|
|Latitude & Longitude (decimal):||-10.62306,-76.68833|
|Köppen climate type:||ET : Tundra|
Uchucchacua mine is very close to the Raura mine in Cajatambo province, leading to label confusion.
Complex vein mineralization related to a dacitic intrusion cutting through Cretaceous and Tertiary formations on West side of Occidental Cordillera of Central Andes.
Mine Type/Method: Cut and fill serviced by 2 vertical shafts exceeding 1.0 km depth, and a 4.6 km drainage tunnel.
Geology: A hydrothermal epigenetic deposit of landfill fractures, which were also transportation channels and metasomatic emplacements of mineralization that finally formed the present ore bodies. The principal commercial mineralization consists of silver, but zinc and lead are also extracted as by-products. Gangue minerals include calcite, kutnohorite, rhodochrosite, and quartz. Mineralization is located in limestones of the early Cretaceous.
Stress redistribution as a result of mining is responsible for the activation of a complex structural system of faults resulting in rockbursts at mine depths over 1 km (as of 2008).
Vizquerra Benavides (2006) mentions the active Carmen Lucrecia and Huantajalla Ag-Pb-Zn mines, the Mercedes ore body (discovered after 2003) and the Pozo Rico exploration project, hosted in carbonate rocks of the Jumasha Formation (at intersection of Mercedes ore body with the Pozo Rico fault).
62 valid minerals. 8 (TL) - type locality of valid minerals. 1 erroneous literature entry.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
66 - 252.17 Ma
|Mesozoic sedimentary rocks|
Bulletin de Minéralogie (1984): 107: 597-604.
Economic Geology (1990): 85(7) (November 1990): 1348-1383.
Mineralogical Record (1997): 28: 58-61.
Hyrsl & Rosales (2003), Mineralogical Record: 34: 241-254.
The Mineralogical Record (2004): 35(2): 153.
Vizquerra Benavides, J.A. (2006): Preliminary geochemical, petrological and mineralogical investigation of the high-grade Ag-Pb-Zn Pozo-Rico, Uchucchacua, Peru. Unpublished masters thesis, Queen’s University, Kingston, ON, Canada, 205 pp.
Lapis (2010): 35(12): 40.
Bonazzi, P., Bindi, L. and Keutsch, F.N. (2011), Manganoquadratite, IMA 2011-008. CNMNC Newsletter No. 10, October 2011, page 2550.
Jaroslav Hyrsl, Jack A.Crowley, Rock H.Currier, Terry Szenics.(2011): PERU - PARADISE OF MINERALS. 544 pp. [Uchucchacua Mine: p. 219}
Bindi, L., Keutsch, F.N., Bonazzi, P. (2012): Menchettiite, AgPb2.40Mn1.60Sb3As2S12, a new sulfosalt belonging to the lillianite series from the Uchucchacua polymetallic deposit, Lima Department, Peru. American Mineralogist, 97, 440-446.
Bonazzi, P., Bindi, L. and Keutsch, F.N. (2012): Manganoquadratite, AgMnAsS3, a new manganese-bearing sulfosalt from the Uchucchacua polymetallic deposit, Lima Department, Peru: Description and crystal structure. American Mineralogist, 97, 1199-1205.
Bindi, L., Keutsch, F.N. and Zaccarini, F. (2016) Spryite, IMA 2015-116. CNMNC newsletter No. 30, April 2016, page 412; Mineralogical Magazine, 80, 407–413.