Willroy & Willecho Cu, Zn, Pb, Ag Mine

Producer in Ontario, Canada with commodities Silver, Copper, Zinc, Lead
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. Production statistics
  17. Reserves and resources
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10073140
MRDS ID W018984
Record type Site
Current site name Willroy & Willecho Cu, Zn, Pb, Ag Mine

Geographic coordinates

Geographic coordinates: -85.83328, 49.16668 (WGS84)
Relative position 64 KM NNE OF MARATHON, ADJACENT WEST OF GECO MINE. 265 KM ENE OF PORT ARTHUR GEMMELL, MAPLEDORAM TWPS.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Ontario

Comments on the location information

  • ABOVE LOCATION IS FOR WILLROY. WILLECHO IS 49 DEG 13 MIN N, 85 DEG 53 MIN W. ALSO 5 KM NW OF WILLROY.

Commodities

Commodity Importance
Silver Primary
Copper Primary
Zinc Critical Primary
Lead Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Biotite Gangue
Garnet Gangue
Magnetite Gangue
Muscovite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Sericitization

Analytical data

Result WILLROY NO 3 ZONE IN 1958 GRADED 1.35% CU, 10.33% ZN, 0.33% PB, 103 G/MT AG

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Quartz Muscovite Schist, Biotite Schist
    Rock description Quartz Muscovite Schist, Biotite Schist
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -85.83328, 49.16668

Economic information

Geologic structures

Type of structure Regional
Structure description Manitou Wadge Syncline

Ore body information

  • General form LINEAR LENSES

Controls for ore emplacement

  • Strike Faults, Drag Folds. Ore Zones Parallel Foliation.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1954
Discoverer Willroy Mines
Year of first production 1957

Mining district

District name Manitouwadge Lake Area, Thunder Bay Dist., Port Arthur Mining Div.

Ownership information

  • Type Owner-Operator
    Owner Willroy Mines Ltd

Production statistics

  • Year 1973
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^.98 % Cu, 2.74 % Zn, 49 G/Mt Ag, (Ore Milled)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 49g/mt
    Major Ore Zinc Zinc 3wt-pct
    Ore Copper Copper 1wt-pct

Comments on the production information

  • 1361 MTPD MILL CAPACITY. MILLED 1070 MTPD IN 1973.

Reserves and resources

  • Type In-situ
    Estimate year 1973
    Total resources 650000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 47 g/mt Silver Major 1973
    Copper Cu 0.34 wt-pct Copper Major 1973
    Zinc Zn 3.98 wt-pct Zinc Major 1973

Workings at the site

  • Type of workings Underground
    Length 1211M
    Overall depth 870M

Comments on the workings information

  • NO 1 SHAFT, 4 COMPARTMENT TO 870 M. 16 LEVELS. NO 2 SHAFT, 213 M SW OF NO 1., TO 152 M DEPTH. (BOTH ON WILLROY)

Comments on development

  • MILL.CAP: 1361 MTPD ; ECON.YEAR: 1975

Reference information

Bibliographic references

  • Deposit

    TIMMS, P. D., MARSHALL, D., 1959, GEOL. OF WILLROY MINES BASE METAL DEPOSITS; GEOL. ASSOC CANADA V. 11, P 55 - 65.

  • Deposit

    PYE, E. G., 1955, PRELIM. REPT. ON GEOL. MANITOUWADGE LAKE AREA; ONTARIO DEPT. MINES GEOL. CIRC. NO. 3, 9 PAGES

  • Deposit

    1954 DIREXPL WILLROY - 4 ZONES FOUN

  • Production

    CANADIAN MINES HANDBOOK 1974 - 75 P 346

General comments

Subject category Comment text
Deposit MOST WILLROY OREBODIES STRIKE E-W, DIP 70-90 DEG N AND PLUNGE AT A SHALLOW ANGLE EAST

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Schruben, Paul G. U.S. Geological Survey

Beyond USGS

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