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Uchucchacua

Producer in Lima, Peru with commodities Silver, Lead, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Reserves and resources
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10068981
MRDS ID W002262
Record type Site
Current site name Uchucchacua
Alternate or previous names Uchuc-Chacua, Buenaventura's Uchucchacua, Mines Areas: Candelaria, Huantajalla, Mercedes, Casualidad, Carmen,, Plomopampa, Veins: Rosa, Luz, Socorro, Consuelo, Ore Bodies: Irma, Rosa Norte, Viviana

Geographic coordinates

Geographic coordinates: -76.70112, -10.57209 (WGS84)
Elevation 4545
Location accuracy 5000(meters)
Relative position THE UCHUCCHACUA AREA IS JUST WEST OF PASO DE UCHUCCHACUA ON THE CONTINENTAL DIVIDE 10-11 KM ENE. OF OYON IN THE PROVINCIA DE CAJATAMBA; 283 KM NE OF LIMA

Site location context

Political divisions (FIPS codes)

Lima(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Lima

Comments on the location information

  • NO. 49, 50, 51, 52, 53, 54 ON METALLOGENIC MAP OF PERU, 1969. LOCATION GIVEN ABOVE IS FOR THE NICHO DEPOSIT, NO. 50
  • NO. 10 ON METALLOGENIC MAPS OF PERU, 1969

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Secondary

Comments on the commodity information

  • GANGUE MINERALS ARE QUARTZ, FELDSPAR, TOURMALINE, BIOTITE, GARNET, ILMENITE

Materials information

Materials Type of material
Alabandite Ore
Bournonite Ore
Chalcopyrite Ore
Enargite Ore
Galena Ore
Jamesonite Ore
Marcasite Ore
Orpiment Ore
Polybasite Ore
Proustite Ore
Pyrargyrite Ore
Pyrite Ore
Pyrrhotite Ore
Realgar Ore
Sphalerite Ore
Stibnite Ore
Tetrahedrite Ore
Wurtzite Ore
Fluorite Gangue
Friedelite Gangue
Quartz Gangue
Rhodochrosite Gangue
Rhodonite Gangue
Siderite Gangue
Wollastonite Gangue

Analytical data

Result BUSSEL AND OTHERS (1990) CONTAINS METAL RATIO DATA, FLUID INCLUSION, SR ISOTOPE, MINERAL ANALYSIS, ETC. MINIMUM DEPTH FOR MINERALIZATION 1600 M, PRIMARY FLUID INCLUSIONS 200 TO 337 DEGREES C (HYDROSTATIC)
Result SALINITY 0.5 TO 29.7 EQUIV WT% NACL-CACL2
Result 87SR/86SR 0.70743 TO 0.71122 FOR CALCITE.

Mineral occurrence model information

Model code 60
USGS model code 18c
Deposit model name Skarn Zn-Pb
Mark3 model number 22

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Rock unit name Dacite
    Rock description Dacite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Jumasha Formation;Jumasha Formation
    Rock description Jumasha Formation;Jumasha Formation

Nearby scientific data

(1) -76.70112, -10.57209
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Asymmetric Ne-Verging Anticline; Conjugate Set Of Steep Wrench Faults Striking Nw And Ne; Near Crest Of Anticline Rocks Are Intruded By Minor Dacitic Intrusions.

Ore body information

  • Strike N55-65E
    Dip 50NW
    Length 150M
    Width 0.2M

Controls for ore emplacement

  • Area Is Underlain By Limestone, Strike N., Dip 20-40 E. Ore Deposits Formed Mostly By Replacement Of Limestone Along Fractures And Bedding Planes. Vein Material Consists Of Brecciated Wall Rock, Calcite, Iron Oxides, And A Little Pyrite, Tetrahedrite, And Galena. Torrico Y Mesa Reports Mine-Run Ore Averaged 1 Kg Silver Per Ton. Malaga Reports Polybasite In Rich Ore.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1677
Year of first production 1961

Mining district

District name Uchucchacua District

Ownership information

  • Type Owner
    Owner Compania De Minas Buenaventura S. A.

Production statistics

  • Year 1973
    Period 1968-1973
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^14.8 Oz/St Ag, 1.9% Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 2wt-pct
    Major Ore Silver Silver 418g/mt

Comments on the production information

  • AMOUNTS RECORDED ARE TOTAL PERU PRODUCTION, MOST OF THIS PRODUCTION CAME FROM QUILCA. IN 1941, ABOUT 1 TON SHIPPED TO U.S., 1941-SMALL AMT. TO JAPAN; 1942-2.5 TONS (METRIC?) TO U.S.
  • ORE CAME FROM SOCORRO AND CARMEN MINES

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 1446961000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 367.02 g/mt Silver Major 1990
    Lead Pb 0.9 wt-pct Lead Major 1990
    Zinc Zn 1.4 wt-pct Zinc Minor 1990
  • Type In-situ
    Estimate year 1985
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 338.827 g/mt Silver Major 1985
  • Type In-situ
    Estimate year 1987
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 344.475 g/mt Silver Major 1987

Comments on the reserve resource information

  • INSUFFICIENT DATA 3/74 TO MAKE ESTIMATE. METALLOGENIC MAPS OF PERU INDICATE A SMALL DEPOSIT OF LITTLE ECONOMIC SIGNIFICANCE.
  • METALLOGENIC MAPS OF PERU INDICATE A DEPOSIT CONTAINING BETWEEN 100,000 AND ONE MILLION TONS OF ORE.
  • PV = PROVEN, PB = PROBABLE; 1985 RESERVES = 57% IN LARGE REPLACEMENT BODIES

Comments on development

  • IN 20TH CENTURY, JUAN MINAYO CARRIED OUT DEVELOPMENT WORK; CERRO DE PASCO CORPORATION TURNED PROPERTY DOWN IN 1927; BUENAVENTURA BEGAN EXPLORING THE AREA IN 1956; OPERATED PILOT PLANT 1968-1973 WHERE PROCESSED ORE FROM SOCORRO AND CARMEN MINES AND INSTALLED FLOTATION PLANT IN 1978. IN 1978 OPENED LEACH PLANT AT UCHUCCHACUA ; ECON.COM: 10000 TO 100000 MET TPY; CONCENTRATOR CAPACITY 900 METRIC TON PER DAY (1990) WITH FEED GRADE OF 0.5% PB, 12.7 OZ/ST AG

Reference information

Bibliographic references

  • Deposit

    SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 1342

  • Deposit

    PERU-MAPA METALOGENETICO, 1969, AND, GUIA PARA EL MAPA METALOGENETICO DEL PERU, SOCIEDAD NACIONAL DE MINERIA Y PETROLEO, LIMA, PERU, NOV. 1969

  • Deposit

    MALAGA SANTOLALLA, FERMIN, 1904B, LA PROVINCIA DE CAJATAMBO Y SUS ASIENTOS MINERALES: CUERPO DE ING. DE MINAS DEL PERU BOL. NO. 6, 111 P.

  • Deposit

    LEWIS, R.W., JR., AND NARVAEZ, SIGFREDO, 1955, LOS DEPOSITOS MINERALES DE LA PROVINCIA DE CAJATAMBO: INST. NAC. DE INV. Y FOMENTO MINEROS BOL., NO. 13, P. 32-37.

  • Deposit

    TORRICO Y MESA, JUAN, 1900, MEMORIA SOBRE LAS RIQUEZAS MINERALES DE LA PROVINCIA DE CAJATAMBO Y EN ESPECIAL DE LOS CERROS DE CHANCA: BOL. MINAS, IND. Y CONSTR., SER. 1, V. 15, P. 43; REPRINTED AS : LA PROVINCIA DE CAJATAMBO Y SUSASIENTOS MINERALES: MINERIA, V. 5, NO. 14, P. 43.

  • Deposit

    DUNSTAN, GUILLERMO, 1909, LA MINERIA EN CAJATAMBO Y BOLOGNESI: PERU, DIR. DE FOMENTO BOL. ANO 7, NO. 4, P. 66-67.

  • Deposit

    CAVANAGH, J., AND GLOVER, M., 1991, THE PERU REPORT'S GUIDE TO MINES AND MINERS IN PERU: LIMA, PERU, PERU REPORTING SERVICIOS S.R.L., P. 97-99.

  • Deposit

    BUSSELL, M.A., ALPERS, C.N., PETERSEN, U., SHEPHERD, T.J., BERMUDEZ, C., AND BAXTER, A.N., 1990, THE AG-MN-PB-ZN VEIN, REPLACEMENT, SKARN DEPOSITS OF UCHUCCHACUA PERU: STUDIES OF STRUCTURE, MINERALOGY, METAL ZONING, SR ISOTOPES, AND FLUID INCLUSIONS: ECONOMIC GEOLOGY, V. 85, P. 1343-1383.

  • Deposit

    1960 COMPILE FRANK SIMONS, UNPUB. REP

  • Production

    F. SIMONS, 1960, UNPUB. REP.; CAVANAGH AND GLOVER (1991)

  • Reserve-Resource

    METALLOGENIC MAPS OF PERU. 1969, 1972

General comments

Subject category Comment text
Deposit First Production Year: 1905-MICA
Deposit First Production Year: 1961 SIGNIFICANT; COLONIAL PERIOD
Deposit Discovery Year: COLONIAL TIME

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-73 Shaffer, Glenn L. (Theune, C. T.) U.S. Geological Survey
Updater 01-AUG-93 Page, Norman J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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