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  3. Mineral Resource Data System (MRDS)

Purisima Concepcion

Past Producer in Lima, Peru with commodities Gold, Silver
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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. Economic information about the deposit and operations
  11. Mining district
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10065203
MRDS ID TC40302
Record type Site
Current site name Purisima Concepcion
Alternate or previous names Purisima Concepcion Oeste

Geographic coordinates

Geographic coordinates: -75.73304, -12.31452 (WGS84)
Elevation 4700
Relative position ABOUT 160 KM ESE OF LIMA.

Site location context

Political divisions (FIPS codes)

Lima(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Lima

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Altaite Ore
Boulangerite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Barite Gangue
Calcite Gangue
Hematite Gangue
Limonite Gangue
Quartz Gangue
Rhodochrosite Gangue
Sericite Gangue
Sphene Gangue
Zircon Gangue

Analytical data

Result BULK ORE SAMPLE 2.7 OZ/METRIC TON AU, 1.0 OZ/METRIC AG, 730 PPM AS, 5.0 WT% BA, 10.4 WT% FE, 78 PPM FE, 10 PPM CU AND 10 PPM PB, 0.6 WT% TI. ALVAREZ AND NOBLE (1988) GIVE OTHER ANALYSES.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Yauricocha Stock
    Rock description Yauricocha Stock
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Rock unit name Tumasha Formation
    Rock description Tumasha Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -75.73304, -12.31452
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Anticline Plunging 50se, Slate Bed Forms Core And Is Locally Sheared And Crushed.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1952
Discoverer K.W.B. Iten

Mining district

District name Yauricocha District

Comments on the production information

  • PROSPECT, UNKNOWN ACTIVITY. INACTIVE LITTLE DEVELOPED PRODUCER.

Reserves and resources

  • Type In-situ
    Estimate year 1988
    Total resources 200000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.11 g/mt Gold Major 1988

Comments on development

  • CENTROMIN BEGAN REEVALUATION IN 1986; COLUMN TESTS YIELDED ABOUT 90% EXTRACTION AU, AND 45% AG; PILOT HEAP-LEACHING WAS FAVORABLE.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ORES LARGELY UNOXIDIZED DEPOSIT, 300 M OUTERMOST PART OF THE ENARGITE ZONE OF THE ZONED DISTRICT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1993 Page, Norman J. U.S. Geological Survey
Updater 01-MAY-1994 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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