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La Improvisada Mine

Past Producer in Ancash, Peru with commodities Lead, Zinc, Silver, 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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10065611
MRDS ID TC40968
Record type Site
Current site name La Improvisada Mine

Geographic coordinates

Geographic coordinates: -77.51309, -9.82489 (WGS84)
Elevation 4705
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Ancash(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Ancash

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Primary
Copper Secondary

Materials information

Materials Type of material
Bismuth Ore
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Calcite Gangue
Quartz Gangue
Rhodochrosite Gangue

Alteration

  • (Local) Chloritization, Sericitization

Analytical data

Result UP TO 1% BI WHICH CORRELATES WITH AG CONTENT.

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -77.51309, -9.82489
ListMap

Economic information

Ore body information

  • Strike N45E
    Dip 85-90 SE
    Thickness 3M
    Length 100M

Comments on the geologic information

  • PEBBLE DIKE OF QUARTZITE AND SHALE IN CLAY MATRIX OCCUPPIES PART OF THE SHEAR ZONE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Ownership information

  • Type Owner
    Owner Sr. Cesar Masa Rios
    First year 1947

Comments on the production information

  • SEVERAL TONS OF HAND COBBED CONCENTRATE IN 1947. INACTIVE LITTLE DEVELOPED PRODUCER.

Comments on the workings information

  • 5 CROSSCUTS AND ADITS.

Reference information

Bibliographic references

  • Deposit

    BODENLOS, A.J., AND STRACZEK, J.A., 1957, BASE-METAL DEPOSITS OF THE CORDILLERA NEGRA, DEPARTAMENTO DE ANCASH, PERU: U.S. GEOLOGICAL SURVEY BULLETIN 1040, 165 P

  • Other Database

    CIMRI

  • Production

    BODENLOS AND STRACZEK (1957)

Reporter information

Type Date Name Affiliation Comment
Reporter 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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