1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Parcoy Gold 58

Producer in La Libertad, Peru with commodities Gold, Silver, Lead, Zinc, Copper
Map
XML
JSON
KML
B
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. Ore body information
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10068887
MRDS ID W002159
Record type Site
Current site name Parcoy Gold 58
Alternate or previous names Veins: Carlos Bernabe-Mishahuara, Carmencita, Chilcas, Chinchiles, Encanto, Esperanza, Lourdes, Mercurio, Mishencanto, Murcie Lago, Rumpuy, Tellez, Teologo, Victoria

Geographic coordinates

Geographic coordinates: -77.44976, -8.04497 (WGS84)
Relative position THE PARCOY GOLD DISTRICT IS CENTERED AROUND THE TOWN OF PARCOY AND EXTENDS FROM A KILOMETER OR SO TO THE NORTHWEST OF THE TOWN TO THE YANARACRA-GIGANTE-SUCIA AREA ABOUT 5 KM TO THE SE.

Site location context

Political divisions (FIPS codes)

La Libertad(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru La Libertad

Comments on the location information

  • NO. 58 ON METALLOGENIC MAPS OF PERU, 1969. EAST FLANK OF MARANON VALLEY

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Electrum Ore
Galena Ore
Gold Ore
Marcasite Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Tetrahedrite Ore
Chlorite Gangue
Epidote Gangue
Limonite Gangue
Quartz Gangue
Sericite Gangue
Siderite Gangue

Alteration

  • (Local) Wall Rocks Are Chloritized, Kaolinized, And Sericitized. At Least Two Stages Of Mineralization And Alteration Have Been Recognized. During The Earlier Stage Wall Rocks Were Silicified, Whereas Later The Wall Rocks And Wall Rock Inclusions In Quartz Were Pyritized And Gold Was Introduced With Fine-Grained Pyrite. Pyritization Usually Extends Only 50 Cm Or So From The Vein, Whereas Chloritization May Be Recognizable As Much As 150 Cm From The Walls.

Analytical data

Result NATIVE GOLD 5-14 WT% AG, ELECTRUM 26-40 WT% AG, SPHALERITE FES CONTENT 1-3% MOLE%, REGIONAL FLUID INCLUSION DATA IN SCHREIBER AND OTHERS (1990)

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Pataz Batholith;
    Rock description Pataz Batholith;
    Stratigraphic age (youngest) Carboniferous
    Chronological age 321
    Dating method Ar-Ar
    Type of media Biotite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -77.44976, -8.04497
ListMap

Economic information

Ore body information

  • Name GENERAL DESCRIPTION
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Plunge 60N
    Thickness 0.12M
    Length 500M
    Width 5M
    Depth to bottom 300M
  • Name CARLOS BERNABE-MISHAHUARA VEIN
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0.4M
    Length 120M
    Width 70M
    Depth to bottom 150M
  • Name CARMENCITA VEIN
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0.15M
    Length 70M
    Depth to bottom 60M
  • Name CHILCAS VEIN
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0.2M
    Length 250M
    Depth to bottom 150M
  • Name CHINCHILES VEIN
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0.3M
    Length 2500M
    Depth to bottom 130M
  • Name ENCANTO VEIN
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0M
    Length 100M
  • Name ESPERANZA VEIN
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0.01M
    Length 450M
  • Name LOURDES
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0.2M
    Length 150M
  • Name MERCURIO VEIN
    General form ORE SHOOT
    Strike N10W}N}}}E}N40W}N}N40W}}N40W}N70W}N35W}N}}N60E-N80W
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0.12M
  • Name MISHENCANTO VEIN
    General form ORE SHOOT
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
    Thickness 0.1M
  • Name MURCIE LAGO VEIN
    General form ORE SHOOT
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
  • Name RUMPUY VEIN
    General form ORE SHOOT
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
  • Name TELLEZ VEIN (SYNONYM: CABANA)
    General form ORE SHOOT
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
  • Name TEOLOGO VEIN
    General form ORE SHOOT
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S
  • Name VICTORIA VEIN
    General form ORE SHOOT
    Dip 30-60NE}E}}}N,S}70-80NE}25-60W}}}40NE}40NE}}E}}20-35S

Comments on the geologic information

  • ROCKS OF THE PARCOY DISTRICT CONSIST, FROM OLDEST TO YOUNGEST, OF RED TO GRAY SANDSTONE, BLUISH GRAY MASSIVE SHALE AND MASSIVE BLUE GRAY LIMESTONE, AND GRANODIORITE THAT INTRUDES THESE ROCKS. THE SANDSTONE IS CEMENTED BY SILICA, IRON OXIDE, AND CALCITE. NEAR THE GRANODIORITE IT IS FOLDED AND TO THE WEST OF RETAMAS IT DIPS 30 DEG-40 DEG W. THE SHALE CROPS OUT EAST OF THE GRANODIORITE MASS AND ALSO IS FOUND IN ROOF PENDANTS. THE GRANODIORITE BODY INCLUDES VARIATIONS TOWARD GRANITE AND DIORITE, FORMS NUMEROUS APOPHYSES, AND HAS MANY INCLUSIONS AND ROOF PENDANTS. NEAR THE SANDSTONE THE GRANITOID ROCK IS REDDISH COLORED. IT IS CHLORITIZED ALONG FRACTURES AND MAY HAVE EPIDOTE ON THE SURFACE OF OUTCROPS. THE CONTACT BETWEEN SEDIMENTARY ROCKS AND GRANODIORITE TO THE WEST OF RETAMAS IS STEEP. IN THE ICHI OR GIGANTE AREA, 4-5 KM SE OF PARCOY, THE COUNTRY ROCK INCLUDES SOME METASEDIMENTARY ROCKS. THE SUMMITS TO THE EAST OF RETAMAS ARE CAPPED BY VOLCANIC ROCKS, MAINLY FLOWS, THAT DIP GENTLY EAST.
  • WEST OF RETAMAS, ANDESITE DIKES CUT GRANODIORITE AND SANDSTONE... THE PRINCIPAL VEINS AT PARCOY ARE IN THE GRANODIORITE BODY NEAR ITS WEST CONTACT WITH SEDIMENTARY ROCKS. A FEW VEINS ARE ALONG THE CONTACT.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1000
Year of first production 1936

Ownership information

  • Type Owner-Operator
    Owner Pataz And Parcoy Gold Syndicate , Sindicato Minera Parcoy 1960'S)
    First year 1935
    Last year 1935

Comments on the reserve resource information

  • INSUFFICIENT DATA 3/74 TO MAKE ESTIMATE. METALLOGENIC MAPS OF PERU INDICATE A DEPOSIT CONTAINING BETWEEN 100,000 AND ONE MILLION TONS OF ORE.

Comments on development

  • 200 T/D CYANIDE PLANT BEGAN OPERATIONS IN 1938.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Discovery Year: PROBABLY WORKED BY THE INCAS, AND CERTAINLY WERE WORKED DURING THE COLONIAL PERIOD, PARTICULARLY DURING THE EIGHTEENTH CENTURY.
Deposit First Production Year: PRODUCTION PRIOR TO 1936 IS NOT KNOWN
Deposit SHOOTS WITH LENGTH 450 M; ECONOMIC ORE VODIES (8-12 PPM AU) SEPARATED LARGE ZONES OF BARREN QUARTZ AND FRACTURED COUNTRY ROCK. THE CARLOS BERNABE-MISHAHUARA VEIN CONTAINS 30 G/T AU (?) AND HAS 8 DEVELOPMENT LEVELS BETWEEN 2550 AND 2740 M. THE CHILCAS VEIN CONTAINS 18 G/T AU AND IS LOCATED 500 M EAST OF LLACUABAMBA. THE CHINCHILES VEIN CONTAINS 22-30 G/T AU AND IS 200 METERS NW OF PARCOY. MERCURIO VEIN CONTAINS 60-100 G/T AU AND IS 700-800 M EAST OF SOLEDAD. MISHENCANTO VEIN HAS 4 LEVELS OVER A VERTICAL DISTANCE OF 90 M. MURCIE LAGO CONTAINS 8-10 G/T AU, AND RUMPUY VEIN 16 G/T AU. TELLEZ VEIN HAS 5 LEVELS OVER 130 M VERTICAL EXTENT. TEOLOGO VEIN CONTAINS 15 G/T AU AND IS 600 M ABOVE CHILCAS. VICTORIA VEIN CONTAINS 8-9 G/T AU.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1973 Shaffer, Glenn L. U.S. Geological Survey
Updater 01-DEC-1993 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site