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Negra Huanusha Mine

Producer in Junin, Peru with commodities Copper, Silver
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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. Alteration
  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. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10080325
MRDS ID W031444
Record type Site
Current site name Negra Huanusha Mine

Geographic coordinates

Geographic coordinates: -75.86638, -11.29789 (WGS84)
Elevation 4300
Location accuracy 5000(meters)
Relative position ABOUT 15 KM SSE OF JUNIN, Within A Range Of 1 Or 2 Minutes, Within A Range Of 1 Or 2 Minutes

Site location context

Political divisions (FIPS codes)

Junin(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Junin

Comments on the location information

  • THE MINERALIZED AREA LIES AT THE SOURCE OF THE PALCAMAYO RIVER, AND 5 TO 6 KM WEST OF RAILROAD ACCESS TO CERRO OF PASCO (NORTH) OR LA OROYA (SOUTH).

Commodities

Commodity Importance
Copper Primary
Silver Tertiary

Comments on the commodity information

  • CHALCOCITE IS BY FAR THE MOST ABUNDANT ORE MINERAL

Materials information

Materials Type of material
Bornite Ore
Chalcanthite Ore
Chalcocite Ore
Copper Ore
Covellite Ore
Malachite Ore
Stromeyerite Ore
Calcite Gangue
Hematite Gangue
Magnetite Gangue

Alteration

  • (Local) Bleaching Of The Red Color Of The Sandstone And Shale Of Wall Rock

Analytical data

Result A TYPICAL ORE AVERAGES 3.2% CU, 2.9 OZ AG, 62% SIO2 AND 16% AL203

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Pucara;Mitu
    Rock description Pucara;Mitu
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Arkose
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -75.86638, -11.29789
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Sedimentary Rocks In The District Are Folded Into A Wnw Trending, West Plunging Anticline

Ore body information

  • General form LENSES AND DISSEMINATED
    Plunge direction WEST

Controls for ore emplacement

  • Copper Mineralization Associated With Plant Horizons

Comments on the geologic information

  • LOWER PALEOZOIC SEDIMENTARY ROCKS OF THE EXCELSOR SERIES (SHALE) OCCUR DOWNSTREAM TO THE EAST OF THE DEPOSIT. THE QUARTZ-DIORITE OUTCROP IS 0.7 X 3.0 KM

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category Private

Comments on the production information

  • DEPOSITS HAVE BEEN WORKED IN VARIOUS LOCATIONS, BY CERRO DE PASCO CORP., AS A SILICA-FLUX ORE FOR THE CU-SMELTER IN LA OROYA.

Comments on the reserve resource information

  • PROBABLY LESS THAN 0.1 MILLION TONS

Reference information

Bibliographic references

  • Deposit

    PETERSON, U., 1962, GENESIS OF ORE DEPOSITS IN THE ANDES OF CENTRAL PERU, CERRO DE PASCO CORP., EXPLORATION DIVISION P. 182-184.

  • Deposit

    KOBE, H.W., 1960, CU-AG DEPOSITS OF THE RED-BED TYPE AT NEGRA HAUNUSHA IN CENTRAL PERU. SCHWEIZ. MIN. PETR. MITT., VOL 40-1, P. 163-176.

  • Production

    KOBE, H.W., 1960, P. 164.

  • Reserve-Resource

    PETERSON, U., 1962, TABLE IV.

General comments

Subject category Comment text
Deposit APPROXIMATE DIMENSIONS OF MINERALIZED AREA 4 X 6 KM. IN MOST DEPOSITS COPPER MINERALS ARE ASSOCIATED WITH AND REPLACE PLANT REMAINS, BUT IN SOME AREAS THEY ARE DISSEMINATED THROUGHOUT THE SANDSTONE. LENSES OF ORE MINERALS GENERALLY CONCORDANT WITH THE STRATIFICATION
Deposit BORNITE AND CHALCOCITE ARE INTIMATELY INTERGROWN IN MOST SPECIMENS. IN OTHER SECTIONS CHALCOCITE RIMS SURROUND BORNITE; CHALCOCITE MAY ALSO OCCUR ALONE. CHALCOCITE REPLACES HEMATITE. MOST MINOR MINERALS ARE SUPERGENE. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-81 Rowe, William D. (Ericksen, George E.) U.S. Geological Survey

Beyond USGS

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

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