San Cristobal

Producer in Chile with commodities Gold, Silver
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. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10106985
MRDS ID TC03728
Record type Site
Current site name San Cristobal
Related records 10182306

Geographic coordinates

Geographic coordinates: -69.5412, -23.54752 (WGS84)
Elevation 1950

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore
Hematite Gangue
Limonite Gangue

Alteration

  • (Local) Silicic, Sericitic

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Oligocene

Nearby scientific data

(1) -69.5412, -23.54752

Economic information

Geologic structures

Type of structure Local
Structure description Host Rock Dike Trends N55w And Dips Steeply To Sw.

Ore body information

  • Strike N; N55W
    Dip 90; 90
    Length 1000M
    Width 150M
    Depth to bottom 140M
  • Strike N; N55W
    Dip 90; 90

Comments on the geologic information

  • HOST ROCK IS A DIKE WHICH INTRUDES A LAYERED, MAFIC INTRUSON (ZANELLI COMPLEX); RELATED STOCK (BURIED) TO WNW CARRIES 0.2 G/T AU. GOLD ASSOCIATED WITH FE- & MN-OXIDES AND MAFIC-MINERAL SITES.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1850
Discoverer Spanish Colonials
Year of first production 1990

Mining district

District name San Cristobal

Ownership information

  • Type Owner
    Owner Niugini Mining

Comments on the production information

  • PRODUCED 509 OZ AU FROM 50,000T ON HEAP LEACH TEST IN 1989. PRODUCED GOLD IN THE 18TH CENTURY.

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 12000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.5 g/mt Gold Major 1990
  • Type In-situ
    Estimate year 1994
    Total resources 6500000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1 g/mt Gold Major 1994

Comments on the reserve resource information

  • LOW ESTIMATE PLANNED PRODUCTION TO BE 1,800,000 TO 2,000,000MT/YEAR. ORE IS ADDITIONAL RESOURCE IDENTIFIED BY NIUGINI.

Comments on development

  • LOW-GRADE, DISSEMINATED GOLD ORIGINALLY DOCUMENTED BY MARSH AND PERKINS (ANACONDA) IN 1930'S. ; TOTAL$: 21

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

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

  • Deposit

    HOWELL, D. Y ASPILLAGA, J., MINERIA CHILENA # 80.

  • Deposit

    MINING MAGAZINE, 1990 (JULY), P. 46.

  • Deposit

    CUADRA, W.A., AND DUNKERLEY, P.M., 1991, A HISTORY OF GOLD IN CHILE: ECONOMIC GEOLOGY, V. 86, NO. 6, P. 1155-1173.

  • Deposit

    LITTLE, M.L., 1994, EXPLORATION REVIEW: SOUTH AMERICA: SEG NEWSLETTER, NO. 18, JULY '94, P. 25.

  • Other Database

    CIMRI

  • Production

    CUADRA AND DUNKERLEY (1991)

  • Reserve-Resource

    WILLIAMS, W.C. (1990). LITTLE (1994).

General comments

Subject category Comment text
Deposit HIGH-GRADE ORE AT VEIN INTERSECTIONS
Deposit Discovery Year: 18TH CENTURY

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1990 Williams, William C. University of Arizona
Updater 01-SEP-1994 Page, Norman J. U.S. Geological Survey

Beyond USGS

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