Carma Mine

Producer in Potosi, Bolivia with commodities Antimony, 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. Ownership information
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10006325
MRDS ID BL20322
Record type Site
Current site name Carma Mine
Alternate or previous names Kharma

Geographic coordinates

Geographic coordinates: -65.8425, -19.76232 (WGS84)
Elevation 3900
Relative position 17 KM N85E OF PORCO; 20 KM SSW OF POTOSI

Site location context

Political divisions (FIPS codes)

Potosi(province)

Bolivia(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Bolivia Potosi
Bolivia Potosi

Comments on the location information

  • N OF RIO AGUA DE CASTILLA

Commodities

Commodity Importance
Antimony Critical Primary
Gold Secondary
Silver Secondary

Comments on the commodity information

  • PYRITE, SPHALERITE, GALENA, CHALCOPYRITE OCCUR IN DISCONTINUOUS LAYERS PARALLEL TO FOLIATION IN SHALE AS WELL AS IN ORE IN MINOR PROPORTIONS

Materials information

Materials Type of material
Antimony Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Stibiconite Ore
Stibnite Ore
Alunite Gangue
Barite Gangue
Calcite Gangue
Goethite Gangue
Kaolinite Gangue
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Silicification

Analytical data

Result FLUID INCLUSION, SHALE ANALYSIS, MINERAL COMPOSITIONS AVAILABLE IN DILLARD AND OTHERS (1995)

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Mudstone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Nearby scientific data

(1) -65.8425, -19.76232

Economic information

Geologic structures

Type of structure Regional
Structure description On W Flank Of An Anticline
Type of structure Local
Structure description N Trending Minor Fault That Cuts Only Ord, Dips 45-50e, Contains Three Ore Bodies.

Ore body information

  • General form PINCH AND SWELL
    Strike N45W; E-W
    Dip 70 SE; 75 N
  • General form PINCH AND SWELL
    Strike N45W; E-W
    Dip 70 SE; 75 N

Comments on the geologic information

  • REGIONAL DYNAMIC METAMORPHISM OF GREENSCHIST FACIES

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Operator
    Owner Compania A. Roempler-Gutierrez

Production statistics

  • Year 1976
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major CONC Antimony Antimony 65wt-pct
  • Year 1991
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Arsenic Arsenic 240g/mt
    Ore Tin Tin 4g/mt
    Ore Mercury Mercury 1g/mt
    Minor Ore Gold Gold 1g/mt
    Ore Lead Lead 0wt-pct
    Ore Iron Iron 1wt-pct
    Major Ore Antimony Antimony 43wt-pct

Comments on the production information

  • CRUSHED AND HAND SORTED; 1991 GRADES FOR AVERAGE ORE

Comments on the reserve resource information

  • SB IN OREBODY 20 X 65 M; AU GRADES VARY AROUND 1 PPM.

Comments on the workings information

  • ADITS, CROSSCUTS, DRIFTS, AND SHAFTS. CUT AND FILL MINING; ARMANDO HAULAGE (3570 M), COLPA-COLPA (3640 M), VILA VILA (3650) LEVELS; SOCABON ALEX GALLERY

Comments on development

  • ECON.COM: FLOATATION MILL.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MINERALIZED FRACTURES IN A ZONE OF INTENSE FRACTURING 800 M LONG AND 60 TO 70 M WIDE ON THE WEST FLANK OF AN ANTICLINE. INDIVIDUAL VEINS, STRIKING N45W OF E-W, PINCH AND SWELL WITH A MAXIMUM WIDTH OF 2.10 M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1991 Llano Zarate, Silvia F. Servicio Geologic de Bolivia
Updater 01-NOV-1993 Long, Keith R. U.S. Geological Survey
Updater 19-JUN-1995 Page, Norman J. U.S. Geological Survey

Beyond USGS

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