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  3. Mineral Resource Data System (MRDS)

Artolla Mine

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. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10065215
MRDS ID TC40317
Record type Site
Current site name Artolla Mine

Geographic coordinates

Geographic coordinates: -68.23449, -22.72393 (WGS84)
Elevation 3200
Relative position 20 KM NORTH OF SAN PEDRO DE ATACAMA.

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Comments on the location information

  • IN RIO GRANDE GORGE; IN TOPOGRAPHIC DEPRESSION BETWEEN CORDILLERA DOMEYKO AND ANDEAN CORDILLERA.

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Atacamite Ore
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Copper Ore
Covellite Ore
Cuprite Ore
Galena Ore
Malachite Ore
Pyrite Ore
Silver Ore
Tenorite Ore
Albite Gangue
Calcite Gangue
Celestite Gangue
Gypsum Gangue
Hematite Gangue
Quartz Gangue

Analytical data

Result ORIGINALLY, 10-18% CU MINERALIZATION OCCURED BELOW 100 DEGREES C. SULFUR ISOTOPES: -33.788 TO -29.690 CP, BN, DI FROM VEINLETS IN BRECCIATED SS -27.603 TO -12.634. FLINT (1986) CONTAINS PROBE ANALYSES OF COPPER ORE MINERALS, PB ISOTOPE ANALYSES, SULFUR ISOTOPES.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Artollo Member Of Pacencia Group
    Rock description Artollo Member Of Pacencia Group
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -68.23449, -22.72393
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Anticline Trending N40e.

Ore body information

  • Name SAND LENSES
    General form LENTICULAR

Controls for ore emplacement

  • Stratigraphy.

Comments on the geologic information

  • ARTOLLO SEDIMENTS ARE OVER 400 M OF RED MUDSTONES AND INTERBEDDED RED AND GRAY SANDSTONES WHICH REPRESENT A SALINE MUDFLAT AT BASE (DALICAYE MEMBER) TO MARGINAL SAND FLAT TO DRY PLAYA MUDFLAT INTO SHALLOW EPHEMERAL LAKE (CEMENTARIO MEMBER). HAS PRIMARY ANHYDRITE NODULES, SECONDARY GYPSUM VEINLETS. SANDS HAVE EROSIVE BASES, AND HIGH ENERGY STRUCTURES; SHAPES OF SHEET AND RIBBON GEOMETRIES. CONSIST OF POORLY SORTED, ANGULAR, LOW SPHERICITY QUARTZ, SODIC FELDSPAR, MINOR MICROLINE, BIOTITE, MUSCOVITE, MAGNETITE, ILMENITE, RUTILE, APATITE-PREMINERALIZATION DIAGENESIS: FORMATION OF HEMATITE RIMS DISSOLUTION OF FELDSPARS, DISSOLUTION OF CALCITE CEMENT.

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 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

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. IN ARTOLLA MINE MINERALIZATION IS MAINLY MATRIX FILLING.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1993 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

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