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Little Stobie

Plant in Ontario, Canada with commodities Cobalt, Copper, Gold, Nickel, PGE, Palladium, Platinum, 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. 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. Reporter information

Geologic information

Identification information

Deposit ID 10278754
MAS/MILS ID 1220400040
Record type Site
Current site name Little Stobie
Alternate or previous names Little Stobie Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -81.00618, 46.54719 (WGS84)
Elevation 320
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Canada Ontario

Commodities

Commodity Importance
Cobalt Critical Secondary
Copper Primary
Gold Secondary
Nickel Critical Primary
PGE Critical Tertiary
Palladium Critical Tertiary
Platinum Critical Tertiary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Unknown
Ilmenite Unknown
Magnetite Unknown
Pentlandite Unknown
Plagioclase Unknown
Pyrite Unknown
Pyrrhotite Unknown

Nearby scientific data

Ore Body (1) -81.00618, 46.54719
ListMap

Economic information

Ore body information

  • Area 500HA
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 BRECCIA FILL
    Shape of Orebody #2 IRREGULAR
    Type of Orebody #3 OTHER
    Primary mode of Origin MAGMATIC DIFFER
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Total Surface Area (HA) 500
    Date of Last Modification 830627

Comments on the geologic information

  • THERE ARE TWO DISTINCT OREBODIES THAT HAVE BEEN RECOGNIZED. THE NO. 1 OREBODY STRIKES AT AN AZIMUTH OF 60 DEGREES AND DIPS 55 DEGREES NORTHWEST. IT LIES BETWEEN FOOT- WALL ROCKS WHICH CONSIST OF METAVOLCANIC AND METASEDIMENTARY UNITS, GRANITES, AND SUDBURY BRECCIA. FOOTWALL NORITW, REGARDED AS A PART OF THE MAIN IRRUPTIVE, DEFINES THE HANGING WALL. THE NO. 1 OREBODY IS APPROXIMATELY 610 METERS LONG, AVERAGES 30 METERS WIDE, AND EXTENDS FROM THE SURFACE TO AT LEAST 792 METERS IN DEPTH. THE NO. 2 OREBODY STRIKES AT AN AZIMUTH OF 135 DEGREES. THIS OREBODY IS EMPLACED BETWEEN METABASALTS AND GRANITES. IT IS APPROXIMATELY 273 METERS LONG, HAS AN AVERAGE WIDTH OF 52 METERS, AND EXTENDS A DEPTH OF 91 METERS TO 366 METERS.

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1885
Mining method Combined Methods
Year of first production 1966
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Sudbury

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner Inco Ltd.
    Interest 100
    Home office Canada
    Year 1981

Production statistics

  • Year 1972
    Material Ore
    Ore mined 1300000mt
    Description 1300000 Mt Ore/Yr
  • Year 1973
    Material Ore
    Ore mined 1300000mt
    Description 1300000 Mtpy
  • Year 1974
    Material Ore
    Ore mined 1300000mt
    Description 1300000 Mtpy
  • Year 1975
    Material Ore
    Ore mined 1300000mt
    Description 1300000 Mtpy
  • Year 1976
    Material Ore
    Ore mined 1300000mt
    Description 1300000 Mtpy
  • Year 1977
    Material Ore
    Ore mined 1300000mt
    Description 1300000 Mtpy
  • Year 1978
    Material Ore
    Ore mined 1300000mt
    Description 1300000 Mtpy
  • Year 1979
    Material Ore
    Ore mined 1300000mt
    Description 1300000 Mtpy
  • Year 1980
    Material Ore
    Ore mined 702000mt
    Description 702000 Mtpy

Reserves and resources

  • Type In-situ
    Estimate year 1973
    Measured 9070000mt ore
    Demonstrated 9070000mt ore
    Total resources 9070000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 1.2 wt-pct Nickel Major 1973
    Copper Cu 1 wt-pct Copper Major 1973
    Iron FeS2 19 wt-pct Iron 1973
    Silver Ag 44.6 g/mt Silver Minor 1973
    Gold Au 1.72 g/mt Gold Minor 1973

Comments on the reserve resource information

  • DATE FOR RESOURCE IS 1973. UPDATE INFO-11/86

Workings at the site

  • Type of workings Underground
    Overall depth 747M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method HORIZ CUT & FILL W/WASTE ROCK 10-60
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNKNOWN
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    1st Condition of Workings OPEN
    Capacity 2700
    Capacity Units MT ORE/DAY
    Unit Production Cost 14.78
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 2
    Year of Information 1981

Comments on other economic factors

  • FILL MATERIAL IS OBTAINED FROM SAND PLANT LOCATED AT THE FROOD-STOBIE MILL. LARGE DIAMETER BLASTHOLE MINING METHOD IS ALSO USED. DIMENSIONAL DATA ARE UNKNOWN.
  • THE COPPER-NICKEL CONCENTRATE IS PUMPED TO THE COPPER CLIFF MILL FOR FURTHER COPPER NICKEL SEPARATION.

Reference information

Bibliographic references

  • Deposit

    CANADIAN MINES HANDBOOK 1978-79. INCO LIMITED. PP. 141-151

  • Deposit

    CREET, N.A. AND W.J. TAYLOR. BIG-HOLE BLASTHOLE DRILLING AT

  • Deposit

    THE INTERNATIONAL NICKEL COMPANY OF CANADA, ONTARIO

  • Deposit

    DIVISION. CIM BULLETIN, JULY 1975, PP. 71-78.

  • Deposit

    E/MJ INTERNATIONAL DIRECTORY OF MINING, 1978, P. 241.

  • Deposit

    FINANCIAL POST SURVEY OF MINES 1978. INCO LIMITED. F. 186.

  • Deposit

    FOWLER, H.B., K.R. KAY AND L. KILPENEN. PROCESS INSTRUMEN-

  • Deposit

    TATION AND CONTROL AT FROOD-STOBIE MILL. CANADIAN

  • Deposit

    MINING JOURNAL, JUNE 1971, PP. 49-56.

  • Deposit

    HAWLEY, J.E. UPSIDE-DOWN ZONING AT FROOD, SUDBURY, ONTARIO.

  • Deposit

    ECONOMIC GEOLOGY, VOL. 60, 1965, PP. 529-575.

  • Deposit

    INCO LTD., STAFF. INCO LIMITED ONTARIO DIVISION MILLS.

  • Deposit

    MILLING PRACTICE IN CANADA, CIM SPECIAL VOLUME 16, 1978.

  • Deposit

    KAY, K.R. AND J.G. PATERSON. COMPUTER CONTROL AT THE

  • Deposit

    CLARABELLE MILL. CIM BULLETIN, FEB. 1975, PP. 65-69.

  • Deposit

    MINING MAGAZINE. BLASTHOLD BENCH BLASTING. APR. 1974,

  • Deposit

    PP. 272-273.

  • Deposit

    NOWLAN, G.C. AND R.J. MCNAIR. INCO LIMITED--IRON ORE

  • Deposit

    RECOVERY PLANT. MILLING PRACTICE IN CANADA, CIM SPECIAL

  • Deposit

    VOLUME 16, 1978, PP. 248-250.

  • Deposit

    SCHABAS, WILLIAM. COPPER CLIFF COMPLEX: TESTING GROUND FOR

  • Deposit

    NEW MINING METHODS. CANADIAN MINING JOURNAL, MAY 1977.

  • Deposit

    SCHABAS, WILLIAM. CREIGHTON NO. 3 MINE: NEW METHODS AND

  • Deposit

    EQUIPMENT IN AN OLD MINE. CMJ, MAY 1977, PP. 15-22.

  • Deposit

    SCHABAS, W. CREIGHTON NO. 9 MINE: DEEP MINING POSES

  • Deposit

    VENTILATION, GROUND PROBLEMS. CMJ, MAY 1977, PP. 23-27.

  • Deposit

    SCHABAS, W. LEVACK COMPLEX: VERTICAL RETREAT STOPES USE

  • Deposit

    CRATER BLASTING TECHNIQUE. CMJ, MAY 1977, PP. 30-34.

  • Deposit

    SCHABAS, W. MILLING OPERATIONS MODERNIZED BY COMPUTER

  • Deposit

    PROCESS CONTROL. CMJ, MAY 1977, PP. 49-56.

  • Deposit

    VENUS, P.F. AND G.W. JOHNSTON. LARGE UNDERGROUND BLAST AT

  • Deposit

    INCO USING SLURRY EXPLOSIVES. CIM BULLETIN, APR. 1978.

  • Deposit

    WORLD MINING. BENCH BLASTING UNDERGROUND AT INCO. AUG.

  • Deposit

    1974, P. 41.

  • Deposit

    WHITE, LANE. OPEN-PIT CONCEPTS BOOST INCO PRODUCTIVITY

  • Deposit

    UNDERGROUND. ENGINEERING AND MINING JOURNAL, MAY 1975,

  • Deposit

    PP. 101-104.

  • Deposit

    ZURBRIGG, H.F. THE FROOD-STOBIE MINE. STRUCTURAL GEOLOGY

  • Deposit

    OF CANADIAN ORE DEPOSITS, VOL. II, 1957, PP.341-350.

  • Deposit

    DIVISION. CIM BULLETIN, JULY 1975 PP. 71-78

  • Deposit

    COMPRESSED AIR IN UNDERGROUND MINING. CIM BULLETIN

  • Deposit

    MONTREAL NOVEMBER 1979

  • Deposit

    DEPARTMENT OF ENERGY, MINES AND RESOURCES, MINERAL

  • Deposit

    DEVOLOPMENT SECTOR, PUBLIC DEPOSIT FILE. OTTAWA, CANADA

  • Deposit

    DEPARTMENT OF ENERGY, MINES AND RESOURCES, SURVEYS AND

  • Deposit

    MAPPING BRANCH. CHELMSFORD TOPOGRAPHIC MAPS,

  • Deposit

    SCALE 1:50,000, MAP 4/-I/11 EDITION 3, OTTAWA 1975

  • Deposit

    PHOTOGRAPHS, 1974. CULTURE CHECK 1972

  • Deposit

    ELMJ INTERNATIONAL DIRECTORY OF MINING 1978 PP. 241

  • Deposit

    FINANCIAL POST SURVEY OF MINES 1978. INCO LIMITED. F. 186

  • Deposit

    FOWLER, H.B., K.R. KAY AND L. KILPENEN. PROCESS INSTRUMEN-

  • Deposit

    TATION AND CONTROL AT FROOD-STOBIE MILL. CANADIAN

  • Deposit

    MINING JOURNAL, JUNE 1971 PP. 49-56

  • Deposit

    FINANCIAL POST SECTION S ADVERTISEMENT. TORONTO, CANADA

  • Deposit

    OCTOBER 11, 1980

  • Deposit

    HANLEY, J.E. THE SUDBURY ORES: THEIR MINEROLOGY AND ORIGIN

  • Deposit

    CANADIAN MINERALOGIST 7. 1962 PP. 207. UPSIDE-DOWN

  • Deposit

    ZONING AT FROOD, SUDBURY, ONTARIO. ECONOMIC GEOLIGY 60

  • Deposit

    1965 PP. 529-75

  • Deposit

    INCO LTD., STAFF. INCO LIMITED ONTARIO DIVISION MILLS

  • Deposit

    MILLING PRACTICE IN CANADA, CIM SPECIAL VOLUME 16 1978

  • Deposit

    INCO ANNUAL REPORTS. 1971-1979

  • Deposit

    INCO LIMITED 7.85% PREFERRED SHARES SERIES B OFFERING

  • Deposit

    NOVEMBER 29, 1977

  • Deposit

    INCO LIMITED LITTLE STOBIE MINE TOUR INTERNATIONAL GEOLOG-

  • Deposit

    ICAL CONGRESS TOUR SEPTEMBER 5, 1972

  • Deposit

    KAY, K.R. AND J.G. PATERSON. COMPUTER CONTROL AT THE

  • Deposit

    CLARABELLE MILL. CIM BULLETIN, FEB. 1975 PP. 65-69

  • Deposit

    MCCREEDY, J. TESTIMONY TO THE SELECT COMMITTEE OF THE

  • Deposit

    ONTARIO LEGISLATURE ON INCO AND FALCONBRIDGE LAYOFF

  • Deposit

    TORONTO JANUARY 10, 1979

  • Deposit

    MINING MAGAZINE. BLASTHOLE BENCH BLASTING. APRIL. 1974

  • Deposit

    PP. 272-273

  • Deposit

    MINISTRY OF NATURAL RESOURCES. ONTARIO MINERAL REVIEW

  • Deposit

    TORONTO CANADA

  • Deposit

    NALDRETT, A.J. ET AL. "CRYPTIC VARIATION AND THE PETROLOGY

  • Deposit

    FO THE SUDBURY NICKEL IRRUPTIVE." ECONOMIC GEOLOGY

  • Deposit

    VOL. 65 NO. 2 1970 PP. 122-155

  • Deposit

    NALDRETT, A.J. AND G. KULLERUD. "A STUDY OF THE STRATHCONA

  • Deposit

    MINE AND ITS BEARING ON THE ORININ OF THE NICKEL COPPER

  • Deposit

    ORES OF THE SUDBURY DISTRICK, ONTARIO" JOURNAL PETROL

  • Deposit

    VOL. 8 1970 PP. 453-531

  • Deposit

    NALDRETT, A.J., R.H. HEWINS, AND L. GREENMAN. "THE MAIN

  • Deposit

    IRRUPTIVE AND SUBCAYER AT SUDBURY, ONTARIO." 1972

  • Deposit

    NORTHERN MINER "INCO THOMPSON 1980 NICKEL OUTPUT IS

  • Deposit

    9/ MILLION POUNDS" AUGUST 21, 1980

  • Deposit

    NOWLAN, G.C. AND R.J. MCNAIR. INCO LIMITED--IRON ORE

  • Deposit

    RECOVERY PLANT. MILLING PRACTICE IN CANADA, CIM SPECIAL

  • Deposit

    VOLUME 16, 1978 PP. 248-750

  • Deposit

    ONTARIO GOVERNMENT. SOURCE MINERAL DEPOSIT REPORTS PUBLIC

  • Deposit

    INFORMATION-MINERAL ASSESSMENT FILES. TORONTO, CANADA

  • Deposit

    PATTINSON, E.F. "THE SUDBURY SUBLAYER." CANADIAN

  • Deposit

    MINERALOGIST 17. 1979 PP. 257-274

  • Deposit

    ROCHEFORT, W. INTRODUCTION OF ELECTRIC LHD EQUIPMENT AT THE

  • Deposit

    INTERNATIONAL NICKEL COMPANY OF CANADA LIMITED, ONTARIO

  • Deposit

    DIVISION. CIM UNDERGROUND OPERATORS CONFERENCE.

  • Deposit

    VAL K'OR, CANADA. FEBRUARY 1976

  • Deposit

    MINING METHODS. CANADIAN MINING JOURNAL, MAY 1977

  • Deposit

    SCHABAS, W. CREIGHTON NO. 3 MINE: NEW METHODS AND EQUIPMENT

  • Deposit

    IN AN OLD MINE. CMJ, MAY 1977 PP. 15-22

  • Deposit

    SCHABAS, W. CREIGHTON NO. 9 MINE: DEEP MINING POSES

  • Deposit

    VENTILATION, GROUND PROBLEMS CMJ, MAY 1977 PP. 23-27

  • Deposit

    SCHABAS, W. LEVACK COMPLEX: VERTICAL RETREAT STOPES USE

  • Deposit

    CRATER BLASTING TECHNIQUE. CMJ, MAY 1977 PP. 30-34

  • Deposit

    SCHABAS, W. MILLING OPERATIONS MODERNIZED BY COMPUTER

  • Deposit

    PROCESS CONTROL. CMJ, MAY 1977 PP. 49-56

  • Deposit

    SOUCH, B.E. ET AL. "THE SULFIDE ORES OF SUDBURY: THEIR

  • Deposit

    PARTICULAR RELATIONSHIP TO DISTINCTIVE INCLUSION-BEARING

  • Deposit

    FACIES OF THE NICKEL IRRUPTIVE." SYMPOSIUM OF MAGMATIC

  • Deposit

    ORE DEPOSITS. ECONOMIC GEOLOGY. MONOGRAPH 4. 1969

  • Deposit

    PP. 252-261

  • Deposit

    VENUS, P.F. AND G.W. JOHNSTON. LARGE UNDERGROUND BLAST AT

  • Deposit

    INCO USING SLURRY EXPLOSIVES. CLM BULLETIN, APRIL 1978

  • Deposit

    WHITE, LANE. OPEN PIT CONCEPTS BOOST INCO PRODUCTIVITY

  • Deposit

    UNDERGROUND. ENGINEERING AND MINING JOURNAL MAY 1975

  • Deposit

    PP. 101-104

  • Deposit

    ZURBRIGG, H.F. THE FROOD-STOBIE MINE. STRUCTURAL GEOLOGY OF

  • Deposit

    CANADIAN ORE DEPOSITS, VOL. II, 1957 OP. 341-350

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAR-1997 Eastern Field Operations Center (EFOC) U.S. Bureau of Mines

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Inco Ltd. — acquired by Subsidiary of Vale (2007)
    International Nickel Company; acquired by Brazilian miner Vale in 2007 for ~US$18 B.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

Maps centered on this site