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  3. Mineral Resource Data System (MRDS)

Malacoff

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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10057944
MRDS ID TC03653
Record type Site
Current site name Malacoff

Geographic coordinates

Geographic coordinates: -70.18288, -22.18922 (WGS84)
Elevation 1100

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
Chalcanthite Ore
Malachite Ore
Calcite Gangue
Gypsum Gangue
Hematite Gangue
Limonite Gangue

Alteration

  • (Local) Argillic, Propylitic, Silicic

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) -70.18288, -22.18922
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Faults At 90/? Fractures At N30w, 55ne

Ore body information

  • Strike N30W
    Dip 55NE
    Thickness 2M
    Length 50M
    Width 30M

Controls for ore emplacement

  • Bedding

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Punta Blanca-Cerro Tres Puntas

Workings at the site

  • Type of workings Surface/Underground
    Area 0.1HA
    Overall depth 80M
    Overall length 45.72M
    Overall width 20M

Comments on development

  • SURFACE SHOWS BUT NEGATIVE RESULTS FROM SURFACE GEOCHEMISTRY

Reference information

Bibliographic references

  • Deposit

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

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit MINERALIZATION DECREASES WITH DEPTH

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.

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