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  3. Mineral Resource Data System (MRDS)

Lomitas

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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10104429
MRDS ID TC03271
Record type Site
Current site name Lomitas
Alternate or previous names Los Polomos

Geographic coordinates

Geographic coordinates: -69.50786, -23.42753 (WGS84)
Elevation 1700

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
Chrysocolla Ore
Hematite Gangue
Limonite Gangue
Quartz Gangue
Tourmaline Gangue

Alteration

  • (Local) Argillic

Analytical data

Result 13.5% CU, 0.32 G/T AU (HIGH-GRADE SAMPLE)

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -69.50786, -23.42753
ListMap

Economic information

Ore body information

  • Strike N25W; N30W; 90
    Dip 30S; ? ; 85N
    Length 40M
    Width 0.5M
  • Dip 30S; ? ; 85N
  • Strike N25W; N30W; 90
    Dip 30S; ? ; 85N

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1972

Mining district

District name Lomas Bayas

Workings at the site

  • Type of workings Surface/Underground
    Area 24HA
    Overall depth 30M
    Overall length 731.52M
    Overall width 300M

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

    WILLIAMS, W.C., 1990, FIELD NOTES.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit SOUTHERN BODY OF LOMAS BAYAS MINERALIZATION PREDOMINANTLY IN 90, 85N-90 FRACTURES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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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