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Windy Craggy Deposit

Prospect in British Columbia, Canada with commodities Copper, Cobalt, 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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10097336
MRDS ID TC00510
Record type Site
Current site name Windy Craggy Deposit

Geographic coordinates

Geographic coordinates: -137.73553, 59.73305 (WGS84)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Skagway(quadrangle 1:250,000 scale)

Geographic areas

Country State
Canada British Columbia

Commodities

Commodity Importance
Copper Primary
Cobalt Critical Secondary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Cobaltite Ore
Cubanite Ore
Gold Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Ankerite Gangue
Biotite Gangue
Calcite Gangue
Chlorite Gangue
Cordierite Gangue
Galena Gangue
Graphite Gangue
Hematite Gangue
Magnetite Gangue
Quartz Gangue
Siderite Gangue
Stilpnomelane Gangue

Alteration

  • (Local) Silicification, Chloritization; Chlorite, Carbonate Regional Haloes

Mineral occurrence model information

Model code 91
USGS model code 24b
Deposit model name Massive sulfide, Besshi (Japanese deposits)
Mark3 model number 30

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Meta-Argillite
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -137.73553, 59.73305
ListMap

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1958
Discoverer Frobisher Exploration (Now Falconbridge Ltd.)

Ownership information

  • Type Operator
    Owner Northgate Exploration Ltd.
    Interest 37
  • Type Owner
    Owner Geddes Resources Ltd.
  • Type Operator
    Owner Cominco
    Interest 17

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 165000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.89 wt-pct Copper Major 1990
    Cobalt Co 0.08 wt-pct Cobalt Minor 1990
    Gold Au 0.92 g/mt Gold Minor 1990
    Silver Ag 3.9 g/mt Silver Minor 1990

Comments on the reserve resource information

  • 114 MILLION TONNES ARE PROVEN AND PROBABLE, REMAINDER POSSIBLE.

Comments on the workings information

  • 2.8 KM OF UNDERGROUND DEVELOPMENT (1990)

Comments on development

  • 1988 TO 1989: 121 UNDERGROUND HOLES - 39,700 M; 8 SURFACE HOLES - 1,700 M. ; MILL.CAP: PROPOSED 20,000 MT/D ; ECON.COM: PROPOSED WASTE TO STRIP RATIO OF 5.2:1; 2 PITS; STUDIES UNDERWAY FOR DEVELOPMENT OF A 20,000-40,000 MT/DAY OPEN PIT MINE.

Reference information

Bibliographic references

  • Deposit

    CORE SHED DISPLAY APPENDIX, 1990, VIII SYMPOSIUM, INTERNATIONAL ASSOCIATION ON THE GENESIS OF ORE DEPOSITS, OTTAWA, CANADA.

  • Deposit

    HARPER, G., 1990, GEOLOGY AND DEVELOPMENT OF THE WINDY CRAGGY PROJECT IN BRITISH COLUMBIA [ABST.]: MINING IS ALIVE IN DENVER (ANNOUNCEMENT FOR 1991 SME, AIME, AND WAAIME ANNUAL MEETING), P.58.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1990 Bolm, Karen S. U.S. Geological Survey

Beyond USGS

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

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