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Sayapullo

Producer in Cajamarca, Peru with commodities Silver, Copper, Gold, Lead, Zinc, Antimony
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10068976
MRDS ID W002255
Record type Site
Current site name Sayapullo

Geographic coordinates

Geographic coordinates: -78.48311, -7.60638 (WGS84)
Elevation 2800
Relative position THE SAYAPULLO MINING DISTRICT IS 50 KM S. OF CAJAMARCA AND 45 KM WEST OF CAJABAMBA IN THE PROVINCIA DE CAJABAMBA (CAJABAMBA SHEET). IT MAY BE REACHED OVER ABOUT 150 KM OF ROAD FROM THE PAN-AMERICAN HIGHWAY AT CHICAMA, 32 KM N. OF TRUJILLO; 700 KM N OF LIMA

Site location context

Political divisions (FIPS codes)

Cajamarca(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Cajamarca

Comments on the location information

  • NO. 14 ON METALLOGENIC MAPS OF PERU, 1969

Commodities

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

Comments on the commodity information

  • ALTERED LIMESTONE LOCALLY CONTAINS GOLD.

Materials information

Materials Type of material
Boulangerite Ore
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Stibnite Ore
Tetrahedrite Ore
Quartz Gangue
Rhodochrosite Gangue

Alteration

  • (Local) Sericitization

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 > Sandstone
    Rock unit name Chimu Formation;Carhuaz Formation;Goyllarisquisga Formation (Aptian);Albian
    Rock description Chimu Formation;Carhuaz Formation;Goyllarisquisga Formation (Aptian);Albian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -78.48311, -7.60638
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Folds And Faults

Ore body information

  • Strike N50-80W
    Dip 35S
    Length 700M
    Width 0.2M
    Depth to bottom 150M

Controls for ore emplacement

  • Vein Ructures Are Fault And Shear Zones Of Probably Small Displacement And Vein Material Was Deposited In Open Fissures And Breccia Cavities With Only Minor Replacement Of Wall Rock. Quartz And Pyrite Are The Most Abundant Minerals. Tetrahedrite And Sphalerite Are The Dominant Ore Minerals, Accompanied By Minor Amounts Of Galena And Chalcopyrite. Rhodochrosite, Boulangerite, And Arsenopyrite Are Presen Some Veins.

Comments on the geologic information

  • THE REGION OF CERRO SAYAPULLO IS ONE OF COMPLEXLY FOLDED AND FAULTED CRETACEOUS ROCKS TRENDING N 60 DEG W AND ARE INTRUDED BY A NUMBER OF STOCKS 200 M TO 5 KM ACROSS (STAPPENBECK, 1929). THE OLDEST ROCKS SHOWN ON THE MAP ARE MEDIUM-BEDDED, LIGHT GRAY TO WHITE, SUGARY CROSS-BEDDED QUARTZITIC SANDSTONES, WITH A LITTLE INTERBEDDED SHALE AND COAL, OF THE CHIMU FORMATION (LOWER NEOCOMIAN). THESE ROCKS FORM A BLOCK ALONG THE SOUTH SIDE OF THE MAPPED AREA THAT IS THRUST OVER THE YOUNGER CARHUAZ FORMATION ALONG A FAULT TRENDING WNW. A SEQUENCE OF THIN- TO MEDIUM-BEDDED VARIEGATED SHALE, MUDSTONE, SILTSTONE, AND SANDSTONE IS CORRELATED WITH THE CARHUAZ FORMATION (UPPER NEOCOMIAN). THESE ROCKS ARE COMMONLY WELL INDURATED AND STRONGLY PYRITIZED, AND ARE THE WALL ROCKS OF MOST OF THE IMPORTANT VEINS. THE CARHUAZ FORMATION NORMALLY IS OVERLAIN BY THE GOYLLARISQUISGA FORMATION (APTIAN), BUT IN MAP AREA THE CONTACT BETWEEN THE TWO FORMATIONS LIES BELOW LEVEL OF OBSERVATION. THE GOYLLARISQUISGA CROPS
  • OUT ONLY ALONG THE RIDGE NORTH OF THE RIO SAYAPULLO. IT CONSISTS MAINLY OF LIGHT-GRAY, SUGARY, CROSS-BEDDED QUARTZITIC SANDSTONE SIMILAR IN LITHOLOGY TO THE CHIMU SANDSTONE. THE SEQUENCE OF ALBIAN

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1775
Year of first production 1924

Mining district

District name Sayapullo-Algamarca District

Ownership information

  • Type Operator
    Owner Sindicato Explotadora De Sayapullo; Compania Minera Sayapullo, S. A.

Comments on the production information

  • FROM 1830-1909, WORKED SPORADICALLY, ESTIMATED 150,000 KG AG MINED. ACTIVE DEVELOPED PRODUCER.

Reserves and resources

  • Type In-situ
    Estimate year 1977
    Total resources 350700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 310 g/mt Silver Major 1977
    Copper Cu 1.8 wt-pct Copper Major 1977
    Lead Pb 1.24 wt-pct Lead Minor 1977
    Zinc Zn 2.6 wt-pct Zinc Minor 1977
  • Type In-situ
    Estimate year 1990
    Total resources 611680000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 8.46 g/mt Silver Major 1990
    Copper Cu 1.94 wt-pct Copper Major 1990
    Lead Pb 1.04 wt-pct Lead Minor 1990
    Zinc Zn 2.21 wt-pct Zinc Minor 1990

Comments on the reserve resource information

  • 1) PROVED RESERVES; 2) PROBABLE RESERVES; PV = PROVEN, PB = PROBABLE
  • INSUFFICIENT DATA 3/74 TO MAKE ESTIMATE. METALLOGENIC MAPS OF PERU INDICATE A DEPOSIT CONTAINING BETWEEN ONE AND 10 MILLION TONS OF ORE.

Comments on the workings information

  • SILVER VEINS OF THE DISTRICT MAY HAVE BEEN EXPLOITED PRIOR TO 1771 (MALAGA, 1905A, P. 18) AND ALMOST SURELY WERE BY 1774, WHEN OXIDIZED ORES OF THE DESCUBRIDORA MINE WERE WORKED. OLD FILL ON THE RESTAURADORA VEINS HAS YIELDED A FEW COPPER TOOLS AND ARTIFACTS WHICH MAY EVEN BE PRECOLUMBIAN. TOWARD THE END OF THE 18TH CENTURY THE MINES APPARENTLY WERE ABANDONED, NOT TO BE REOPENED UNTIL 1830-1835. FROM THAT TIME UNTIL 1909, THE DEPOSITS WERE WORKED SPORADICALLY AND ARE REPORTED TO HAVE YIELDED NEARLY 150,000 KG OF SILVER. HIGH GRADE ORE WAS SHIPPED TO EUROPE AND LOW GRADE ORE WAS TREATED IN AN AMALGAMATION PLANT AT VISTA BELLA, JUST WEST OF SAYAPULLO. FROM 1909 TO 1915, THE MINES WERE OPERATED BY THE COMPANIA MINERA SAYAPULLO, AND ABOUT 1,000,000 SOLES (ABOUT $500,000) WORTH OF SILVER WAS PRODUCED. FROM 1915 TO 1923, A SMELTER OPERATED AT SAYAPULLO AND PRODUCED NEARLY 5000 TONS OF COPPER MATTE, CONTAINING 30-40% COPPER AND 4-5 KG OF SILVER PER TON. SINCE 1923, MOST OF THE MINES HAVE
  • BEEN OPERATED BY THE SINDICATO EXPLOTADORA DE SAYAPULLO.

Comments on development

  • ECON.COM: CONCENTRATOR CAPACITY (1990) 300 METRIC TONS PER DAY WITH FEED GRADE OF 2.09% CU, 0.08% PB, 0.66% ZN, 8.27 OZ/ST AG

Reference information

Bibliographic references

  • Deposit

    SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 1098

  • Deposit

    PERU-MAPA METALOGENETICO, 1969, AND, GUIA PARA EL MAPA METALOGENETICO DEL PERU, SOCIEDAD NACIONAL DE MINERIA Y PETROLEO, LIMA, PERU, NOV. 1969

  • Deposit

    MALAGA SANTOLALLA, FERMIN, 1905A, LA PROVINCIA DE CAJABAMBA Y SUS ASIENTOS MINERALES: CUERPO DE ING. DE MINAS DEL PERU BOL., NO. 19, P. 43-47

  • Deposit

    BALTA, JOSE, 1908-1910, REGIONES MINERAS DE SAYAPULLO Y DE HUAYDAY: BOL. MINAS, IND. Y CONSTR., SER. 2, V. 2, P. 26-32

  • Deposit

    5) VELARDE, CARLOS E., 1908, LA MINERIA EN EL PERU: LIMA, MINISTERIO DE FOMENTO, IMPRENTA LA OPINION NACIONAL, P. 17-21

  • Deposit

    CAVANAGH, J., AND GLOVER, M., 1991, THE PERU REPORT'S GUIDE TO MINES AND MINERS IN PERU: LIMA, PERU, PERU REPORTING SERVICIOS S.R.L., P. 279-281.

  • Deposit

    NOBLE, D.C. AND VIDAL, C.E., 1994, GOLD IN PERU: SEG NEWSLETTER, APRIL 1994, NO. 17, P. 1, 6-13.

  • Deposit

    CASTILLO, G.Z., 1980, PROYECTO 03 SUB-PROYECTO DE SEGUIDAD MINERA.

  • Deposit

    1960 COMPILE FRANK SIMONS, UNPUB. REP

  • Production

    1-3) LA MINERIA EN EL PERU, ANUARIO MINERO COMERCIAL 1977; 8-12) F. SIMONS, 1960, UNPUB. REP.; CAVANAGH AND GLOVER (1991), CASTILLO (1980).

  • Reserve-Resource

    METALLOGENIC MAPS OF PERU. 1969, 1972

General comments

Subject category Comment text
Deposit SEE RECORD CAJ0002
Deposit First Production Year: 1924 SIGNIFICANT
Deposit Discovery Year: 1770'S(?); FEW COPPER TOOLS FOUND, MAY DATE TO PRE-COLUMBIA WORKINGS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1973 Shaffer, Glenn L. U.S. Geological Survey
Updater 01-AUG-1978 Theune, C.T. (78 08) U.S. Geological Survey
Updater 01-AUG-1993 Page, Norman J. U.S. Geological Survey
Updater 01-JUL-1994 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