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Arcata

Plant in Arequipa, Peru with commodities Gold, Lead, Silver, Zinc
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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. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10207202
MRDS ID W002222
MAS/MILS ID 3330070005
Record type Site
Current site name Arcata
Related records 10068945

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -72.24962, -15.01465 (WGS84)
Elevation 4600
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Arequipa(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Arequipa

Commodities

Commodity Importance
Gold Tertiary
Lead Primary
Silver Primary
Zinc Critical Primary

Materials information

Materials Type of material
Arsenopyrite Unknown
Barite Unknown
Calcite Unknown
Chalcopyrite Unknown
Galena Unknown
Pyrite Unknown
Quartz Unknown
Silver Unknown
Sphalerite Unknown
Silver Unknown

Nearby scientific data

Ore Body (1) -72.24962, -15.01465
ListMap

Economic information

Ore body information

  • Strike N45W
    Dip 70S
    Thickness 100M
    Length 1500M
    Width 4.5M
    Area 160HA
    Depth to top 100M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 STOCKWORK
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N45W:70S
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 160
    Date of Last Modification 920812

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1961
Mining method Filled Stopes
Year of first production 1964
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Carayani

Mineral rights holdings

Type of mineral rights State Lease

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Minas De Arcata S. A.
    Interest 49.9
    Home office Peru
    Year 1991
  • Type Owner
    Owner Greystone Corp.
    Interest 15.1
    Year 1991
  • Type Owner
    Owner Garrison Corp.
    Interest 35
    Year 1991

Production statistics

  • Year 1989
    Description Ore Production 271718 Metric Tons
  • Year 1990
    Description Ore Production 310709 Metric Tons

Comments on the production information

  • RECOVERY DATA AS ENTERED IS THE TOTAL OVERALL RECOVERY OF THAT COMMODITY.
  • 1989 ORE PRODUCTION WAS 271,718; GRADE WAS; 545.14 GM/MT AG, CONCENTRATE CONTAINED 378 KG AU AND 110,138 KG AG

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Measured 809000mt ore
    Demonstrated 809000mt ore
    Total resources 809000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 540.55 g/mt Silver Major 1993
    Lead Pb 0.8 wt-pct Lead Major 1993
    Zinc Zn 1.24 wt-pct Zinc Major 1993

Comments on the reserve resource information

  • ONLY THE SILVER GRADE IS PUBLISHED. ORE ALSO CONTIANS ZINC, LEAD, AND GOLD, THEIR GRADES ARE UNKNOWN.

Workings at the site

  • Type of workings Underground
    Overall depth 200M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OTHER FILLED STOPE METHODS
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    1st Condition of Workings OPEN
    2nd Condition of Workings OPEN
    3rd Condition of Workings OPEN
    Capacity 900
    Capacity Units MT ORE/DAY
    Operating Days per Year 345
    Operating Shifts per Day 3
    Year of Information 1991

Comments on other economic factors

  • WEIGHTED AVERAGE FEED GRADES FOR PB, ZN, AU ARE UNKNOWN. PUBLISHED FEED GRADES ARE LISTED BY: "TRADITIONAL ORE" AG AT 442.97 GM/MT; PB AT 0.30 WT%; ZN AT 0.50 WT% AND AU AT 44.23 GM/MT. "POLYMETALLIC ORE" AG AT 678.86 GM/MT; PB AT 1.75 WT%; ZN AT 3.07 WT% AND AU AT 81.60 GM/MT.

Reference information

Bibliographic references

  • Deposit

    PURSER, W. F., 1971, METAL-MINING IN PERU PAST AND PRESENT:

  • Deposit

    PRAEGER, NEW YORK, 339 PGS.

  • Deposit

    RANDOL 1995 PERUVIAN MINING DIRECTORY, P. 28

General comments

Subject category Comment text
Deposit THIS PROPERTY WAS EVALUATED IN APRIL OF 1983. HOWEVER, THE MAS DATA BASE/ADIT DATA WAS NEVER ENTERED. 6/20/97--VALIDATED W/ COUNTRY SPEC. THE MINE IS ACTIVE.

Reporter information

Type Date Name Affiliation Comment
Reporter 20-JUN-1997 Peterson, Gary R. 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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