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

Esperanza

Past Producer in Chile with commodities Gold, Copper
Map
XML
JSON
KML
B
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. Production statistics
  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 10104527
MRDS ID TC03830
Record type Site
Current site name Esperanza

Geographic coordinates

Geographic coordinates: -69.89702, -26.71415 (WGS84)
Elevation 1500

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Gold Primary
Copper Secondary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore

Analytical data

Result 12 G/T AU
Result 3% CU

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Bandurrias Formation
    Rock description Bandurrias Formation
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -69.89702, -26.71415
ListMap

Economic information

Ore body information

  • Strike N50-60E
    Dip 75NW
    Length 1000M
    Width 0.8M

Economic information about the deposit and operations

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

Mining district

District name La Isla

Production statistics

  • Year 1971
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^50 G/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 50g/mt

Workings at the site

  • Type of workings Underground
    Overall depth 25M

Comments on the workings information

  • 2 SHAFTS, 6 LEVELS

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.).RUIZ, C. Y PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE; SANTIAGO, 334 P.

  • Deposit

    SALINAS, M., 1972, YACIMIENTOS AURIFEROS DE LA PROVINCIA ATACAMA: INEDITO.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit 5 PARALLEL VEINS OVER A WIDTH OF 100M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-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