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  3. Mineral Resource Data System (MRDS)

Buena Esperanza

Past Producer in Chile with commodities Copper, Gold
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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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Reserves and resources
  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 10057797
MRDS ID TC03457
Record type Site
Current site name Buena Esperanza

Geographic coordinates

Geographic coordinates: -70.23288, -22.51422 (WGS84)
Elevation 270

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary
Gold Primary

Comments on the commodity information

  • SAMPLE FROM HIGH-GRADE LENS

Materials information

Materials Type of material
Chalcopyrite Ore
Calcite Gangue
Hematite Gangue
Quartz Gangue

Analytical data

Result 10% CU 3 G/T AU

Host and associated rocks

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

Nearby scientific data

(1) -70.23288, -22.51422
ListMap

Economic information

Ore body information

  • General form LENTICULAR
    Strike N45E
    Dip 70SE-90
    Length 60M
    Width 0.2M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Gatico

Reserves and resources

  • Type In-situ
    Estimate year 1966
    Total resources 100000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2 wt-pct Copper Major 1966
    Gold Au 1.5 g/mt Gold Major 1966

Workings at the site

  • Type of workings Underground
    Overall depth 70M
    Overall length 54.86M

Comments on the workings information

  • SHAFT, ADIT; STOPED

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    ENAMI, 1966, #2042.

  • Other Database

    CIMRI

  • Reserve-Resource

    ENAMI, 1966.

General comments

Subject category Comment text
Deposit IN LENSES <5M LONG. OXIDIZED TO 50M.

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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