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  3. Mineral Resource Data System (MRDS)

San Bartolo

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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Reserves and resources
  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 10104447
MRDS ID TC03404
Record type Site
Current site name San Bartolo

Geographic coordinates

Geographic coordinates: -68.23449, -22.72254 (WGS84)
Elevation 3200

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Comments on the location information

  • RUIZ & PEEBLES REPORT LOCATION AT 22-43-57S AND 68-11-42 TO 13-00W.

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Copper Ore
Galena Ore
Silver Ore

Analytical data

Result ORIGINALLY, 10-18% CU MINERALIZATION OCCURRED BELOW 100 DEGREES

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name San Pedro Formation
    Rock description San Pedro Formation
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -68.23449, -22.72254
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Anticline Trending N40e.

Ore body information

  • General form LENTICULAR
    Strike N45E
    Dip 30-80NW
    Thickness 2M
    Length 3500M
    Width 150M

Controls for ore emplacement

  • Stratigraphy

Comments on the geologic information

  • SULFUR ISOTOPES: -33.788 TO - 29.680 CP, BN, DI FROM VEINLETS IN BRECCIATED SS -27.603 TO -12.634 DI, CV IN MATRIX OF SANDSTONES 2.445 TO 6.589 PRE-ORE, DIAGENETIC SULFATES

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discoverer Worked By Atacamenos And/Or Incas

Mining district

District name San Bartolo

Comments on the production information

  • PRODUCTION BETWEEN 1850-1968.

Reserves and resources

  • Type In-situ
    Estimate year 1916
    Total resources 150000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3 wt-pct Copper Major 1916

Comments on the reserve resource information

  • PRODUCTION AND RESERVES
  • RESERVES BASED ON EVALUATION OF COMPANIA MINERA DE SAN BARTOLO WHO TOOK OVER OPERATIONS AT HTIS TIME.

Workings at the site

  • Type of workings Underground
    Area 52.5HA
    Overall depth 150M
    Overall length 3200.4M
    Overall width 150M

Comments on the workings information

  • EXPLOITED BY UNDERHAND STOPING AND ROOM-AND-PILLAR METHODS; SHAFT, ADIT, INCLINE

Comments on development

  • ECON.COM: GRADES ERRATIC, ROCKS UNCONSOLIDATED, AND WATER DISPOSAL A PROBLEM.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MINERALIZATION IS CONCENTRATED IN PALE GRAY, BLEACHED SANDSTONES OF ARTOLLA MEMBER AND IS DISCONTINUOUS, IRREGULAR, AND ERRATIC BUT IS RICHEST NORTH OF THE SAN BARTOLO DOME; 80% OF MINERALIZATION IN OXIDE-CEMENTED SANDSTONES, WHILE THE REMAINDER IS IN SMALL VEINLETS; MINERALIZATION IN UP TO 15 SEPARATE HORIZONS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1989 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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