1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Omega

Past Producer in Chile with commodities Copper, Silver
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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 10104457
MRDS ID TC03494
Record type Site
Current site name Omega
Alternate or previous names Los Loros

Geographic coordinates

Geographic coordinates: -70.21455, -22.37422 (WGS84)
Elevation 900

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary
Silver Primary

Materials information

Materials Type of material
Atacamite Ore
Bornite Ore
Brochantite Ore
Chalcocite Ore
Chrysocolla Ore
Malachite Ore
Calcite Gangue
Gypsum Gangue
Hematite Gangue
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Silicic, Argillic, Propylitic

Analytical data

Result 6.3% CU 20-120 G/T AG

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) -70.21455, -22.37422
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Faults At N20-30e, 70-80se And Dikes At N80e, 45n

Ore body information

  • Strike 0
    Dip 30E
    Thickness 16M
    Length 105M
    Width 75M

Controls for ore emplacement

  • Bedding

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
Production years 1850-1870

Mining district

District name Guanillos

Workings at the site

  • Type of workings Surface/Underground
    Area 0.1HA
    Overall depth 75M
    Overall length 45.72M
    Overall width 20M

Comments on the workings information

  • INCLINE, ADIT

Comments on development

  • ECON.COM: PROSPECTIVE

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    ENAMI, 1968, #2044.

  • Other Database

    CIMRI

  • Reserve-Resource

    ENAMI

General comments

Subject category Comment text
Deposit DISCORDANT; IN AMYGDULES AND FRACTURES (1.5-5.5M WIDE); 6 MANTOS

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