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  3. Mineral Resource Data System (MRDS)

Santa Rosa

Producer in Tolima, Colombia with commodities Gold, Silver
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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. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10066599
MRDS ID TC42863
Record type Site
Current site name Santa Rosa

Geographic coordinates

Geographic coordinates: -75.41221, 3.60891 (WGS84)
Elevation 430
Location accuracy 2000(meters)
Relative position 2 KM FROM THE TOWN OF ATACA.

Site location context

Political divisions (FIPS codes)

Tolima(province)

Colombia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Colombia Tolima

Comments on the location information

  • LOCATED IN THE VILLAGE OF SANTA ROSA, NEAR THE SALDANA RIVER.

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Gold Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -75.41221, 3.60891
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Ataco Syncline

Ore body information

  • Thickness 9M

Comments on the geologic information

  • CRETACEOUS AND TERTIARY LIMESTONES, SANDSTONES, LYDITES, SHALES, CONGLOMERATES, AND SILTSTONES OUTCROP IN THE AREA, AND FORM PART OF THE ATACO SYNCLINE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Production years WORKED INTERMITTENTLY SINCE THE 19TH CENTURY.

Comments on the production information

  • THE AMOUNT OF ORE EXTRACTED FROM THE MINE IS DIFFICULT TO SURMISE, BUT LOCAL MINERS WILL ATTEST TO THE MINES BONANZA. MINERS IN 1975 EXTRACTED $50-80 OF GOLD A DAY.

Comments on the workings information

  • IN 1975, THERE WERE 500 MINERS WORKING THE SITE. THESE WORKERS DUG HOLES, WHICH WERE WORKED BY GROUPS 8-12 MINERS. THE HOLES WERE USUALLY QUICKLY ABANDONED DUE TO THE INUNDATION OF GROUND WATER, WHICH WAS EXTRACTED, IN PART, BY FIRE ENGINES. MANY HOLES REMAIN AND ARE STILL BEING WORKED, AND OTHERS HAVE BEEN PARTIALLY COFFER DAMMED.

Comments on development

  • THE CHOCO PACIFICO MINING COMPANY COMPLETED A GEOLOGICAL STUDY OF THE AREA WITH DRILL HOLE STUDIES, THE RESULTS OF WHICH ARE UNKNOWN.

Reference information

Bibliographic references

  • Deposit

    BUITRAGO R., C., BUENAVENTURA A., J.A., AND VESGA O., C.J., 1974, OCURRENCIAS MINERALES EN EL DEPARTAMENTO DEL TOLIMA: MINISTERIO DE MINAS Y ENERGIA, REPUBLICA DEL COLOMBIA. SCALE 1:250,000.

  • Deposit

    BUENAVENTURA, J.A., 1975, OCURRENCIAS MINERALES EN LA REGION NORTE DEL TOLIMA. INF. 1688, INGEOMINAS, BOGOTA.

  • Other Database

    CIMRI

  • Production

    BUENAVENTURA (1975).

General comments

Subject category Comment text
Deposit THE SANTA ROSA MINE IS IN PART OF THE LARGE ALLUVIAL DEPOSIT CREATED BY THE SALDANA RIVER. THE DEPOSIT CONSISTS OF CLASTS OF GRANODIORITE, ANDESITE, BASALT, LYDITE, SANDSTONE, LIMONITE, AND QUARTZ IN A CLATEY SAND MATRIX. GOLD FLAKES AND NUGGETS AND OTHER ABUNDANT HEAVY MINERALS ARE FOUND IN THE MATRIX. THE LOWER ZONES OF THE ALLUVIUM ARE THE RICHEST.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1995 Wells, Tina M. U.S. Geological Survey

Beyond USGS

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

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