Mantos Contreras

Occurrence in Chile with commodity Copper
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. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  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 10057754
MRDS ID TC03397
Record type Site
Current site name Mantos Contreras

Geographic coordinates

Geographic coordinates: -70.23622, -22.74421 (WGS84)
Elevation 1000

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
Brochantite Ore
Chrysocolla Ore
Malachite Ore
Quartz Gangue

Alteration

  • (Local) 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) -70.23622, -22.74421

Economic information

Geologic structures

Type of structure Local
Structure description Fault At N60w, 67sw Fractures At N75-85e, 58-75se And N10e, 62e

Ore body information

  • General form TABULAR
    Strike N85E
    Dip 55NW
    Length 200M
    Width 100M

Comments on the geologic information

  • PREHNITE-PUMPELLYITE METAMORPHISM

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Michilla

Ownership information

  • Type Owner
    Owner Compania Minera Carolina De Michilla

Workings at the site

  • Type of workings Surface
    Area 2HA
    Overall depth 5M
    Overall length 182.88M
    Overall width 100M

Comments on the workings information

  • EXPLORATORY PIT

Comments on development

  • ECON.COM: NOT ECONOMIC DUE TO LOW GRADE

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    PEDDAR, T., 1944, ARCHIVO SERNAGEOMIN #3703.

  • Other Database

    CIMRI

  • Reserve-Resource

    PEDDAR, T., 1944.

General comments

Subject category Comment text
Deposit IN FRACTURES PROXIMAL TO DIORITE DIKES AND AMYGDULES AT TOP OF FLOWS

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.