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Rosita De Oro Mine

Past Producer in Ancash, Peru with commodities Lead, Copper, 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. 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. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10080289
MRDS ID W031403
Record type Site
Current site name Rosita De Oro Mine
Related records 10206848

Geographic coordinates

Geographic coordinates: -77.08558, -9.53575 (WGS84)
Elevation 4560
Location accuracy 10000(meters)
Relative position 1100 TO 1200 METERS S 60 E OF THE LAKE ANTIMANA OUTLET, ABOUT 10 KM S80E OF SAN MARCOS.

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

  • EXTENDS FROM NEAR THE RIDGE CREST OF THE CIRQUE DOWN THE SLOPE OF THE VALLEY JUST EAST OF QUEBRADA ANTAMINA.

Commodities

Commodity Importance
Lead Primary
Copper Primary
Zinc Critical Primary

Materials information

Materials Type of material
Galena Ore
Malachite Ore
Pyrite Ore
Sphalerite Ore
Tetrahedrite Ore
Fluorite Gangue
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Silicified Limestone, Altered Feldspars In Dike.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Jumasha Limestone;
    Rock description Jumasha Limestone;

Nearby scientific data

(1) -77.08558, -9.53575
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 Cut By A Ramified And Branching Dike System

Ore body information

  • General form TABULAR
    Strike NORTH AND 15 TO 70 W
    Dip 20 TO 60 W
    Thickness 0.6M
    Length 105M
    Width 25M

Controls for ore emplacement

  • Fissures And Shear Zones

Comments on the geologic information

  • N STRIKING, 45-60W RHYOLITE DIKE CUT LOW S DIPPING LIMESTONES. DEPOSITS IN CONTACT OR IN RHYOLITE. ORE SHOOTS CONTAIN 10-30% SULFIDE, 5-20% GALENA.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Antamina Mining District

Land status

Ownership category Private

Comments on the production information

  • THIS MINE IS ONE OF THE LARGEST DEPOSITS OF THE AREA AND IN 1948 WAS ONE OF THE LARGEST PRODUCERS. INACTIVE DEVELOPED PRODUCER.

Comments on the reserve resource information

  • THE PRINCIPAL DIKE SHOULD PROVIDE ORE FOR SMALL BUT STEADY PRODUCTION FOR A NUMBER OF YEARS.

Workings at the site

  • Type of workings Surface/Underground
    Area 0.75HA
    Overall length 274.32M
    Overall width 25M

Comments on the workings information

  • PITS, TRENCHES, AND ADITS EXPOSE THE ORE.

Reference information

Bibliographic references

  • Deposit

    BODERLOS, A.J. AND ERICKSEN, G.E., 1955, LEAD ZINC DEPOSITS OF CORDILLERA BLANCA AND NORTHERN CORDILLERA HUAYHUASH, PERU. U.S.G.S. BULL. 1017, 166 P

  • Other Database

    CIMRI

  • Production

    BODENLOS AND ERICKSEN (1955).

General comments

Subject category Comment text
Deposit ORE SHOOTS GENERALLY CONTAIN 10 TO 30 PERCENT SULFIDES, ALTHOUGH SEVERAL CARRY AS MUCH AS 50 PERCENT SULFIDES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-81 Rowe, William D. (Ericksen, George E.) U.S. Geological Survey
Updater 01-MAY-94 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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