Berta Iii

Producer in Chile with commodities Copper, Gold
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 10059487
MRDS ID TC06114
Record type Site
Current site name Berta Iii

Geographic coordinates

Geographic coordinates: -70.05231, -26.71276 (WGS84)
Elevation 1750

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary
Gold Secondary

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) Argillic, Silicic

Analytical data

Result 2.54% CU
Result 1.4 G/T AU
Result 2.7 G/T AG

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -70.05231, -26.71276

Economic information

Geologic structures

Type of structure Regional
Structure description Located On N30e-Trending Sinistral Fault

Ore body information

  • Length 40M
    Width 35M

Controls for ore emplacement

  • Fault

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name El Chivato

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 20M

Comments on development

  • DRILLING NEARBY HAS ENCOUNTERED ANOTHER BRECCIA

Reference information

Bibliographic references

  • Deposit

    DIAZ, ET AL., 1980, MAPA METALOGENICO PRONOSTICO DE LA III REGION: CORPORACION DE FOMENTO DE LA PRODUCCION, SANTIAGO (5 VOLS.).

  • Deposit

    WILLIAMS, W.C., 1991, FIELD NOTES.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit DEPOSIT IS BRECCIATED DUE TO SYN- AND POST-MINERALIZATION TRANSCURRENT AND NORMAL FAULTING; MINERALIZATION CONCENTRATED IN VEINLETS; HIGHER GOLD VALUES ASSOCIATED WITH HEMATITE-RICH ZONES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1991 Williams, William C. University of Arizona

Beyond USGS

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