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  3. Mineral Resource Data System (MRDS)

Coroccohuayco

Prospect in Peru with commodities Copper, 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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10133164
MRDS ID W029821
MAS/MILS ID 3330130006
Record type Site
Current site name Coroccohuayco
Related records 10079722

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -71.3829, -14.83106 (WGS84)
Elevation 4000
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country
Peru

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Bornite Unknown
Chalcocite Unknown
Chalcopyrite Unknown
Epidote Unknown
Garnet Unknown
Hematite Unknown
Magnetite Unknown

Nearby scientific data

Ore Body (1) -71.3829, -14.83106
ListMap

Economic information

Ore body information

  • Strike N25E
    Dip 40W
    Thickness 27.5M
    Length 1500M
    Width 400M
    Depth to top 300M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 MASSIVE
    Shape of Orebody #2 TABULAR
    Primary mode of Origin CONT METASOMATIC
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control CONTACT ZONE
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Strike And Dip N25E:40W
    Minimum Depth to Top 200
    Date of Last Modification 810219
  • Area 50HA
    Field Value
    Total Surface Area (HA) 50
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1971
Mining method Caving Methods - Sublevel Caving
Milling method Flotation

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

  • Type Operator
    Owner Empresa Minera Especial Coroccohuayco Sa
    Home office Peru
    Year 1995
  • Type Owner
    Owner Magma Copper Co.
    Interest 100
    Home office Delaware
    Year 1995

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Indicated 15200000mt ore
    Demonstrated 15200000mt ore
    Total resources 15200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.04 wt-pct Copper Major 1990
  • Type In-situ
    Estimate year 1984
    Indicated 16000000mt ore
    Demonstrated 16000000mt ore
    Total resources 16000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.94 wt-pct Copper Major 1984
  • Type In-situ
    Estimate year 1992
    Demonstrated 15225000mt ore
    Total resources 15225000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.88 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 11469000mt ore
    Total resources 11469000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.32 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1995
    Demonstrated 25924000mt ore
    Total resources 25924000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.1 wt-pct Copper Major 1995
  • Type In-situ
    Estimate year 1995
    Demonstrated 14000000mt ore
    Total resources 14000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.59 wt-pct Copper Major 1995
  • Type In-situ
    Estimate year 1995
    Demonstrated 25924000mt ore
    Total resources 25924000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.1 wt-pct Copper Major 1995

Comments on the reserve resource information

  • MINING JOURNAL, 3/30/84. (12/31/83)
  • RESERVE SOURCE: GOLDER REPORT.

Workings at the site

  • Type of workings Underground
    Overall depth 460M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method SUBLEVEL CAVING 10-75
    Swell Factor .6
    Percent Waste Rock 12
    Percent Recovery 95
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    Number of Shafts 2
    Avg. Length of Adits (m) 1600
    Number of Adits 6
    1st Condition of Workings NO MINE ENTRY
    Capacity 3000
    Capacity Units MT ORE/DAY
    Operating Days per Year 300
    Operating Shifts per Day 2
    Year of Information 1984

Comments on the workings information

  • 6-METER WIDE, 80-KILOMETER ROAD IS PROPOSED.

Reference information

Bibliographic references

  • Reserve-Resource

    LATIM AM. MINING LETTER, VOL.9, NO. 6, 6/30/90, P 8.

  • Reserve-Resource

    MINING JOURNAL 3/30/84 P.211.

  • Reserve-Resource

    MINING MAGAZINE, 6/92, P.378.

  • Reserve-Resource

    MINERO PERU, INVESTMENT OPPORTUNITIES- COROCCOHUAYCO, 1991,

  • Reserve-Resource

    P.22

  • Reserve-Resource

    MAGMA MINING CO., 1994 10-K, P.20.

  • Reserve-Resource

    ENGINEERING AND MINING JOURNAL, 12/94, P.WW-1.

  • Deposit

    "PROYECTO COROCCOHUAYCO", MINERO-PERU'S REPORT NO.

  • Deposit

    ADM-247/79, 1979? (MAFO'S FIFLE ON COROCCOHUAYCO PROPERTY).

  • Deposit

    GOLDER ASSOCIATES: DEPOSIT PROFILE COROCCOHUAYCO,PERU. PRE-

  • Deposit

    PARED FOR THE U.S. BUREAU OF MINES (MINERAL AVAILABILITY

  • Deposit

    SYSTEM), MARCH 1980, 10 PAGES.

  • Deposit

    MINING ACTIVITY DIGEST, 9/25/87, P.3.

  • Deposit

    MINERALS AND MATERIALS, APR./MAY, 1987, P.32.

  • Deposit

    INTERNATIONAL MINING, 4/88, P.100.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-96 Porter, Kenneth E. U.S. Bureau of Mines

Beyond USGS

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

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