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  3. Mineral Resource Data System (MRDS)

Mosca

Past Producer in Chile with commodity 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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Production statistics
  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 10057761
MRDS ID TC03406
Record type Site
Current site name Mosca

Geographic coordinates

Geographic coordinates: -70.24122, -22.72254 (WGS84)
Elevation 910
Relative position 300M NORTHWEST OF CALIFORNIA MINE

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Atacamite Ore
Chalcocite Ore
Chrysocolla Ore
Malachite Ore
Calcite Gangue
Gypsum Gangue
Hematite Gangue

Alteration

  • (Local) Silicic, Propylitic

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name La Negra Formation
    Rock description La Negra Formation
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -70.24122, -22.72254
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Bedding - N70e, 25-30se Faults At N65e, 34se And 90, 45s

Ore body information

  • General form IRREGULAR
    Strike N85E
    Dip 28S
    Length 150M
    Width 23M

Controls for ore emplacement

  • Fault

Comments on the geologic information

  • PREHNITE-PUMPELLYITE METAMORPHISM

Economic information about the deposit and operations

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

Mining district

District name Michilla

Production statistics

  • Year 1967
    Period 1964-67
    Material CU
    Accuracy Accurate
    Description Cp_Grade: ^4.82%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 5wt-pct

Workings at the site

  • Type of workings Underground
    Area 0.48HA
    Overall depth 60M
    Overall length 146.3M
    Overall width 30M

Comments on development

  • IN 1974, COMPANIA MINERA CAROLINA DE MICHILLA DRILLED 13 HOLES AROUND MINE; ONLY ONE ENCOUNTERED >2% COPPER.

Reference information

Bibliographic references

  • Deposit

    BORIC, R., DIAZ, F., AND MAKSAEV, V., 1984, COMPLEMENTO MAPA METALOGENICO, II REGION: GERENCIA DESAROLLO, SANTIAGO, (12 VOLS.)

  • Other Database

    CIMRI

  • Production

    BORIC, ET AL., 1984.

General comments

Subject category Comment text
Deposit MINERALIZATION IN FRACTURES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1990 Williams, William C. University of Arizona

Beyond USGS

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

Maps centered on this site