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Salpo-Milluachaqui Gold-Silver 45

Producer in La Libertad, Peru with commodities Gold, Silver, Zinc, Lead, Copper
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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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10068900
MRDS ID W002172
Record type Site
Current site name Salpo-Milluachaqui Gold-Silver 45

Geographic coordinates

Geographic coordinates: -78.59978, -7.9897 (WGS84)
Elevation 3300
Relative position AT AND NE OF THE TOWN OF SALPO, 15 KM BY ROAD SW OF AGALLPAMPA ON THE TRUJILLO-HUAMACHUCO ROAD, AND ABOUT 50 KM ENE OF TRUJILLO IN THE PROVINCE OF OTUSCO (TRUJILLO, CONTUMAZA, SANTIAGO DE CHUCO AND CAJABAMBA SHEETS).

Site location context

Political divisions (FIPS codes)

La Libertad(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru La Libertad

Comments on the location information

  • NO. 45 ON METALLOGENIC MAPS OF PERU, 1969

Commodities

Commodity Importance
Gold Primary
Silver Primary
Zinc Critical Secondary
Lead Secondary
Copper Secondary

Comments on the commodity information

  • MILLUACHAQUI HAD AU/AG RATIOS OF 25-90.

Materials information

Materials Type of material
Argentite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Tetrahedrite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -78.59978, -7.9897
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description The Rocks Of The Area Are Gray, Green Or Purple Andesite Or Latite Flows, Flow Breccias, And Tuffs That Overlie Shale And Sandstone Of Cretaceous Age. The Volcanic Rocks Are Cut By A Number Of Veins That In General Trend Nw And Dip Sw.

Ore body information

  • Strike N45-70W
    Dip 50SW
    Length 4000M
    Width 0.8M
    Depth to bottom 250M

Controls for ore emplacement

  • See Comments

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1677
Production years PRODUCTION IN 1923 IS QUESTIONABLE, NO DATE ARE AVAILABLE

Ownership information

  • Type Operator
    Owner Northern Peru Mining And Smelting Co.

Production statistics

  • Year 1948
    Period 1906 - 1948
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^6 - 9 G Au/T, 250 - 1000 G Ag/T
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 8g/mt
    Ore Silver Silver 625g/mt
  • Year 1948
    Period 1906 - 1948
    Material AG
    Accuracy Accurate
    Description Cp_Grade: ^250 - 1000 G Ag/T, See Comments
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 625g/mt
  • Year 1948
    Period 1906 - 1948
    Material AU
    Accuracy Accurate
    Description Cp_Grade: ^6 - 9 G Au/T
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 8g/mt

Comments on the production information

  • ORE AMOUNT BASED ON GOLD AVERAGE OF 8 G/TON AU. PRODUCTION YEARS: 1906 - 1908 , 1912 - 1931 , 1934 - 1939 , 1944 - 148. ACTIVE DEVELOPED PRODUCER.

Comments on the reserve resource information

  • INSUFFICIENT DATA 3/74 TO MAKE ESTIMATE. METALLOGENIC MAPS OF PERU INDICATE A DEPOSIT CONTAINING BETWEEN ONE AND 10 MILLION TONS OF ORE.

Reference information

Bibliographic references

  • Deposit

    SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 525

  • 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, 1905B, LA PROVINCIA DE OTUZCO Y SUS ASIENTOS MINERALES: CUERPO DE ING. DE MINAS DEL PERU BOL., NO. 22, 70 P., P. 41-46

  • Deposit

    VELARDE, CARLOS E., 1908, LA MINERIA EN EL PERU: 365 P. LIMA, MINISTERIO DE FOMENTO, IMPRENTA LA OPINION NACIONAL, 24-28.

  • Deposit

    FORT, MICHEL, 1926, LA INDUSTRIA MINERA DEL PERU EN EL ANO DEL CENTENARIO 1921: BOL. MINAS. IND. Y CONSTR., SER 2, V. 15, P. 50-51.

  • Deposit

    AGUILAR, REVORADO, J.F., 1941, CURSO DE GEOLOGIA ECONOMICA DE YACIMIENTOS MINERALES: ESCUELA NAC. ING. INST. NAC. POLITECNICO SUPERIOR, 99 P., P.56-57.

  • Deposit

    DELSOL, D.E., 1880, INFORME SOBRE LAS MINAS DE SALPO, QUIRUVILCA Y HUAMACHUCO EN EL DEPARTAMENTO DE LA LIBERTAD: ANALES ESCUELA COSTR. CIVILES Y DE MINAS, V. 1, 87 P.

  • Deposit

    NOBLE, D.C. AND VIDAL, C.E., 1994, GOLD IN PERU: SEG NEWSLETTER, APRIL 1994, NO. 17, P. 1, 6-13.

  • Deposit

    1960 COMPILE FRANK SIMONS, UNPUB. REP

  • Other Database

    CIMRI

  • Production

    F. SIMONS, 1960, UNPUB. REP.

  • Reserve-Resource

    METALLOGENIC MAPS OF PERU. 1969, 1972

General comments

Subject category Comment text
Deposit MAY BE ADULARIA-SERCITE TYPE AU-AG VEINS.
Deposit Discovery Year: COLONIAL PERIOD

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1973 Shaffer, Glenn L. U.S. Geological Survey
Updater 01-MAY-1994 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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