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Guanaco-La Olla Mine

Producer in Chile with commodities Gold, Silver, Zinc, Copper, Lead
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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 10107188
MRDS ID TC39967
Record type Site
Current site name Guanaco-La Olla Mine
Alternate or previous names Guanaca Sector, La Olla Sector, Ore Shoots: Guanaco N., Guanaco S., Paulino, Central, Del Medio,, Maria Isabel, Colon

Geographic coordinates

Geographic coordinates: -70.9162, -32.24746 (WGS84)
Elevation 1650
Relative position 60 KM SOUTH OF SALAMANCA, 150 KM NORTH OF SANTIAGO.

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Comments on the location information

  • WESTERN FLANKS OF EL BRONCE VALLEY.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Zinc Critical Secondary
Copper Secondary
Lead Secondary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Sphalerite Ore
Tetrahedrite Ore
Barite Gangue
Chlorite Gangue
Epidote Gangue
Hematite Gangue
Quartz Gangue
Sericite Gangue

Analytical data

Result FLUID INCLUSIONS ARE TWO PHASE, VAPOR AND LIQUID. AT LESS THAN 1563 M ABOVE SEA LEVEL AND BETWEEN 1563-1628 M INCLUSIONS ARE LIQUID RICH WITH TEMPERATURES IN DEEP LEVELS OF 327-344 DEGREES CELSIUS AND 7.4-9.3 WEIGHT % NACL EQUIVALENT, INTERMEDIATE LEVELS 207-260 DEGREES CELSIUS AND 4-7 WEIGHT % NACL EQUIVALENT. IN UPPER LEVELS (1738-1810 M) VARIABLE VAPOR/FLUID RATIOS WITH 235-270 DEGREES CELSIUS TEMPERTURE 4-7% NACL. SEE EVIDENCE OF BOILING. CONCLUDE ONLY HAD 350 M OF EROSION.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name San Lorenzo Super Unit
    Rock description San Lorenzo Super Unit
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Early Cretaceous
    Stratigraphic age (youngest) Early Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Cerro Morado Formation
    Rock description Cerro Morado Formation

Nearby scientific data

(1) -70.9162, -32.24746
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Morro Hediondo Caldera.

Ore body information

  • Name GUANACO NORTE
    Strike }}}}}
    Dip 45-50W}}}85W}75W}
    Plunge 50S
    Thickness 3.85M
    Length 450M
    Width 200M
    Depth to top 450M
  • Name GUANACO SUR
    Strike }}}}}
    Dip 45-50W}}}85W}75W}
    Plunge 50-55S
    Thickness 4.45M
    Length 250M
    Width 450M
    Depth to top 220M
  • Name PAULINO
    Strike }}}}}
    Dip 45-50W}}}85W}75W}
    Thickness 2.6M
    Length 90M
    Width 220M
    Depth to top 350M
  • Name CENTRAL
    Dip 45-50W}}}85W}75W}
    Thickness 2.7M
    Length 300M
    Width 350M
    Depth to top 3.7M
  • Name DEL MEDIO
    Dip 45-50W}}}85W}75W}
    Thickness 3.7M
    Length 330M
    Width 240M
  • Name MARIA ISABEL
    Dip 45-50W}}}85W}75W}
    Thickness 4.75M
    Length 500M
    Width 500M

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Reference information

General comments

Subject category Comment text
Deposit EL BRONCE VEIN SPLITS INTO PARTS THAT MAKE UP GUANACO SECTOR. TOWARD NORTH THREE STRUCTURES MERGE TO FORM LA OLLA SECTOR. ORE TYPES: HYDROTHERMAL BRECCIA, MASSIVE ORE, STOCKWORK AND DISSEMINATED ORE. GALENA, TERAHEDRITE-TANNANITE, BORNITE IMPORTANT IN GUANACO ORE SHOOTS. GUANACO SECTOR, VERTICALLY ZONE SIMILAR TO EL BRONCE.
Deposit SEE EL BRONCE MINE (TC04069).
Deposit PART OF EL BRONCE EPITHERMAL SYSTEM. ORE SHOOTS ARE ALSO VEIN NAMES.

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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