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Contonga Y Chincho

Producer in Ancash, Peru with commodities Lead, Zinc, Silver, Copper, Gold
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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. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Reserves and resources
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10080290
MRDS ID W031404
Record type Site
Current site name Contonga Y Chincho

Geographic coordinates

Geographic coordinates: -77.13308, -9.5313 (WGS84)
Location accuracy 100(meters)
Relative position 5 KM N 5 W OF LAKE ANTAMINA; 520 KM FROM PORT OF CALLAO, Lat And Long Given For Lake Antamina Outlet

Site location context

Political divisions (FIPS codes)

Ancash(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Ancash

Comments on the location information

  • THE CONTONGA AREA IS AT THE HEAD OF QUEBRADA PAJUSH AND ABOUT 10 KM N 70 E OF THE TOWN OF SAN MARCOS.

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Fluorite Gangue
Opal Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Limestone And Dike Rocks Are Slightly Silicified And Pyritized.

Host and associated rocks

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

Nearby scientific data

(1) -77.13308, -9.5313
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Folded And Faulted Sedimentary Rocks With Steeply Dipping Axial Planes Trending Nw
Type of structure Local
Structure description Limestone Forms A Broad Anticline To The East And A Sharp Syncline To The West. Intruded By Stocks, Dikes

Ore body information

  • General form TABULAR
    Length 900M
    Width 500M

Controls for ore emplacement

  • Fractures And Shear Zones

Comments on the geologic information

  • LIMESTONE FOLDS STRIKE NW AND DIP 55 TO 80 SW

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1974

Mining district

District name Antamina Mining District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Sociedad Minera Gran Bretana

Production statistics

  • Year 1981
    Material ZN
    Accuracy Accurate
    Description Ap_Grade: ^2.7% Pb, 6.6% Zn, 0.5% Cu, 5 Oz/Mt Ag, 1 Gm/Mt Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Zinc Zinc 7wt-pct
    Silver Silver 141g/mt
    Gold Gold 1g/mt
    Copper Copper 1wt-pct
    Minor Lead Lead 3wt-pct

Comments on the production information

  • PRODUCTION AT 500 METRIC TON PER DAY (1984)

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 141.178 g/mt Silver Minor 1984
    Gold Au 28.235 g/mt Gold Minor 1984
    Zinc Zn 6.6 wt-pct Zinc Major 1984
    Lead Pb 2.7 wt-pct Lead Major 1984
    Copper Cu 0.5 wt-pct Copper Minor 1984
  • Type In-situ
    Estimate year 1984
    Total resources 1000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 141.178 g/mt Silver Minor 1984
    Gold Au 28.235 g/mt Gold Minor 1984
    Zinc Zn 6.6 wt-pct Zinc Major 1984
    Lead Pb 2.7 wt-pct Lead Major 1984
    Copper Cu 0.5 wt-pct Copper Minor 1984
  • Type In-situ
    Estimate year 1985
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 121.413 g/mt Silver Minor 1985
    Zinc Zn 5.5 wt-pct Zinc Major 1985
    Lead Pb 3.2 wt-pct Lead Major 1985
    Copper Cu 0.4 wt-pct Copper Minor 1985

Comments on the workings information

  • PITS, ADITS AND SHAFTS EXPOSE THE VEINS

Reference information

Bibliographic references

  • Deposit

    BODENLOS, A.J. AND ERICKSEN, G.E., 1955, LEAD ZINC DEPOSITS OF CORDILLERA BLANCA AND NORTHERN CORDILLERA HUAYHUASH, PERU. U.S.G.S. BULL. 1017.

  • Deposit

    MINING MAGAZINE, JANUARY, 1987, P. 59.

  • Deposit

    U.S. BUREAU OF MINES MINERALS YEARBOOK, 1981, PT. 3, P. 784.

  • Deposit

    ENGINERING & MINING JOURNAL, 1984, NOVEMBER, P. 94.

  • Deposit

    AMERICAN EMBASSY, LIMA, 5/15/85, P. 22.

  • Production

    USBM (1981), E/MJ (1984)

General comments

Subject category Comment text
Deposit DIMENSIONS OF DEPOSIT REFER TO THE MINERALIZED AREA.
Deposit PRODUCTION WAS LESS THAN 5 TONS OF LEAD CONCENTRATE PER MONTH. THREE VEINS ON THE NORTH, WEST, SOUTH SIDES OF THE STOCK MAY MERIT FURTHER EXPLORATION AT DEPTH. ; INFO.SRC : 1 PUB LIT

Reporter information

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