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Birchtree

Producer in Manitoba, Canada with commodities Cobalt, Copper, Gold, Nickel, PGE, Palladium, Platinum, Silver, Sulfur
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Geologic information

Identification information

Deposit ID 10278641
MAS/MILS ID 1220150020
Record type Site
Current site name Birchtree
Alternate or previous names Birchtree Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -97.93078, 55.70397 (WGS84)
Elevation 200
Location accuracy 500(meters)
(click for info)

Geographic areas

Country State
Canada Manitoba

Commodities

Commodity Importance
Cobalt Primary
Copper Primary
Gold Primary
Nickel Primary
PGE Primary
Palladium Primary
Platinum Primary
Silver Primary
Sulfur Primary

Materials information

Materials Type of material
Chalcopyrite Unknown
Marcasite Unknown
Niccolite Unknown
Pentlandite Unknown
Pyrrhotite Unknown

Nearby scientific data

Ore Body (1) -97.93078, 55.70397
ListMap

Ore body information

  • Strike N45E
    Dip 70W
    Thickness 3M
    Length 1450M
    Field Value
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 TABULAR
    Primary mode of Origin MAGMATIC DIFFER
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N45E
    Date of Last Modification 830627

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Both metallic and non-metallic
Significant Yes
Discovery year 1964
Year of first production 1968
Milling method Flotation

Mining district

District name Thompson Nickel Belt

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

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

Comments on the ownership information

  • INCO METALS COMPANY, A SUBSIDIARY OF INCO LIMITED, WAS SET UP TO OPERATE THE MINING ACTIVITIES IN CANADA.

Production statistics

  • Year 1969
    Description Initial Production 3629 Mt Ore/Day
  • Year 1970
    Description 3629 Mt Ore/Day
  • Year 1971
    Description Unfavorable Nickel Markets,Prod. Reduced 2440 Mt Ore/Day
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Nickel Nickel 2,440mt
  • Year 1972
    Description 2440 Mt Ore/Day
  • Year 1973
    Description 2440 Mt Ore/Day
  • Year 1974
    Description 2440 Mt Ore/Day
  • Year 1975
    Description 2440 Mt Ore/Day
  • Year 1976
    Description 2440 Mt Ore/Day
  • Year 1977
    Description Production Suspended 2440 Mt Ore/Day

Reserves and resources

  • Type In-situ
    Estimate year 1973
    Demonstrated 12,698,000mt ore
    Measured 12,698,000mt ore
    Total resources 12,698,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 1 wt-pct Nickel Major 1973
    Copper Cu 0.07 wt-pct Copper Major 1973

Comments on the reserve resource information

  • PROPERTY WITH POTENTIAL FOR RE DEVELOPMENT
  • FROM COMPANY SOURCES AND AMC JOURNAL - VOL 74 NO. 12 PG 18

Workings at the site

  • Type of workings Underground
    Overall depth 1328M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method SHRINKAGE W/CUT AND FILL
    Percent Waste Rock 23
    Percent Recovery 96
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING MAY SLOUGH
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    1st Condition of Workings OPEN
    Capacity 2720
    Capacity Units MT ORE/DAY
    Unit Production Cost 31.91
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 2
    Year of Information 1981

Comments on other economic factors

  • THE MILL HAS TWO CIRCUITS, THE "B" CIRCUIT, WHICH PRODUCES SEPARATE COPPER AND NICKEL CONCENTRATES FROM THE THOMPSON AND BIRCHTREE ORES AND THE "C" CIRCUIT, WHICH PRODUCES A NICKEL-COPPER CONCENTRATE FROM THE PIPE ORE. THE CONCENTRATE IS PIPELINED SEPARATELY TO THE SMELTER.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 1220150020

Bibliographic references

  • Workings

    KERR, ROBERT W., AND N. LEONARD, RAISE BORING PRACTICES AT

  • Workings

    INCO'S MANITOBA DIVISION; CIM BULL., FEB., 1976, P.94-102

  • Workings

    KERR, R.W., THE FILL SYSTEM FOR 108 BLASTHOLE STOPE AT

  • Workings

    INCO'S BIRCHTREE MINE; IN MINING WITH BACKFILL, CIM

  • Workings

    SPECIAL VOLUME 19, 1978, P.16-20.

  • Deposit

    INCO STAFF, MANITOBA DIVISION- BIRCHTREE MINE; IN MINERAL

  • Deposit

    INDUSTRIES IN WESTERN CANADA, THE TENTH COMMONWEALTH

  • Deposit

    MINING AND METALLURGICAL CONGRESS- SEPT. 2-28, 1974,

  • Deposit

    SECTION I, ARTICLE B, P.10-16.

  • Deposit

    AZIS, A., ET AL. "THE UNDISCOVERED MINERAL ENDOWMENT OF THE

  • Deposit

    CANADIAN SHIELD IN MANITOBA." A FEDERAL-PROVINCIAL CO-

  • Deposit

    OPERATIVE STUDY, MINERAL BULLETIN MR124 OF THE DEPART-

  • Deposit

    MENT OF ENERGY, MINES AND RESOURCES. OTTAWA. PUBLICA-

  • Deposit

    TION 72-1 OF THE DEPARTMENT OF MINES, RESOURCES AND

  • Deposit

    ENVIRONMENTAL MANAGEMENT. WINNIPEG. 1972.

  • Deposit

    BROOKS, R.H. AND R.E. MEYERS, "BLASTHOLE STOPING AT INCO'S

  • Deposit

    BIRCHTREE MINE." CIM BULLETIN. MONTREAL. JUNE 1979.

  • Deposit

    CANADIAN MINING JOURNAL. MONTREAL. NOVEMBER 1980.

  • Deposit

    COATES, C.J.A., ET AL. GEOLOGY AND MINERAL DEPOSITS OF THE

  • Deposit

    FLIN FLON, LYNN LAKE AND THOMPSON AREAS, MANITOBA, AND

  • Deposit

    THE CHURCHILL-SUPERIOR FRONT OF THE WESTERN PRECAMBRIAN

  • Deposit

    SHIELD. 24TH INTERNATIONAL GEOLOGICAL CONGRESS.

  • Deposit

    MONTREAL. 1972.

  • Deposit

    COATES, C.J.A., ET AL. GEOLOGY OF THE MOAK-SETTING LAKES

  • Deposit

    AREA, MANITOBA, FIELD TRIP NO. 1. GEOLOGICAL ASSOCIA-

  • Deposit

    TION OF CANADA. AUGUST 1970. REVISED DECEMBER 1970.

  • Deposit

    DAVIES, J.F., ET AL. GEOLOGY AND MINERAL RESOURCES OF

  • Deposit

    MANITOBA. DEPARTMENT OF MINES AND NATURAL RESOURCES.

  • Deposit

    WINNIPEG. 1962.

  • Deposit

    DEPARTMENT OF ENERGY, MINES AND RESOURCES. MINERAL DEVELOP-

  • Deposit

    MENT SECTOR. PUBLIC DEPOSIT FILES. OTTAWA, CANADA.

  • Deposit

    DEPARTMENT OF ENERGY, MINES AND RESOURCES. SURVEYS AND

  • Deposit

    MAPPING BRANCH. MYSTERY LAKE TOPOGRAPHIC MAP. SCALE

  • Deposit

    1:50,000. MAP 63P/13 EDITION 2. OTTAWA. 1980. PHOTO-

  • Deposit

    GRAPHS, 1976; CULTURE CHECK, 1978.

  • Deposit

    FRASER, H. "MECHANICAL ANCHORS FOR TENSIONED CABLE BOLTS AT

  • Deposit

    INTERNATIONAL NICKEL'S BIRCHTREE MINE, MANITOBA

  • Deposit

    DIVISION, THOMPSON MANITOBA." CIM UNDERGROUND OPERATORS

  • Deposit

    CONFERENCE. VAL D'OR. FEBRUARY 1976.

  • Deposit

    HAINSTOCK, R. "VERTICAL CRATER RETREAT MINING AT INCO'S

  • Deposit

    INCO LTD. AR 1980. 10K

  • Deposit

    INCO LTD. $CAN75,000,000 9 1/4% DEBENTURE OFFERING. TORONTO.

  • Deposit

    OCTOBER 1, 1970.

  • Deposit

    INCO LTD. $CAN125,000,000 7.85% PREFERRED SHARES SERIES B

  • Deposit

    OFFERING. TORONTO. NOVEMBER 29, 1977.

  • Deposit

    INCO LTD. "THE THOMPSON PROJECT."

  • Deposit

    INCO METALS COMPANY, DIVISION OF INCO LIMITED. THOMPSON,

  • Deposit

    MANITOBA. BIRCHTREE MINE. JANUARY 5, 1981.

  • Deposit

    NORTHERN MINER. TORONTO. JANUARY 11, 1979.

  • Deposit

    NORTHERN MINER. "IMPRESSIVE PLANT ARISES IN NORTHERN

  • Deposit

    MANITOBA." SEPTEMBER 17, 1959.

  • Deposit

    PABST, MARILYN. "FRESH IDEAS INCO TRADEMARK IN MANITOBA,"

  • Deposit

    AND "CHANGES AIMED AT WORKPLACE SAFETY IN THOMPSON

  • Deposit

    MINE."

  • Deposit

    PATTERSON, J.M. GEOLOGY OF THE THOMPSON-MOAK LAKE AREA.

  • Deposit

    DEPARTMENT OF MINES AND NATURAL RESOURCES. PUBLICATION

  • Deposit

    60-4. WINNIPEG. 1963.

  • Deposit

    PEREDERY, W.V. AND C.J.A. COATES. GUIDEBOOK FOR NICKEL

  • Deposit

    SULFIDE FIELD CONFERENCE. OCTOBER 1978.

  • Deposit

    ROSS, A.R. "THOMPSON: RIPPLES IN THE CANADIAN POND." INTER-

  • Deposit

    NATIONAL NICKEL MAGAZINE. TORONTO. 1973.

  • Deposit

    THEYER, P. STRATIGRAPHIC SETTING OF SELECTED ULTRAMAFIC

  • Deposit

    BODIES IN THE SUPERIOR AND CHURCHILL PROVINCES AND

  • Deposit

    CERTAIN ASPECTS OF NICKEL COPPER DEPOSITS IN THE

  • Deposit

    THOMPSON NICKEL BELT. MANITOBA DEPARTMENT OF ENERGY AND

  • Deposit

    MINES, MINERAL RESOURCES DIVISION. ECONOMIC GEOLOGY

  • Deposit

    REPORT ER 79-2. WINNIPEG. 1980.

  • Deposit

    THE THOMPSON CHAMBER OF COMMERCE. "CITY OF THOMPSON, THE HUB

  • Deposit

    OF NORTHERN MANITOBA." THOMPSON, MANITOBA.

  • Deposit

    ZURBRIGG, H.F. "THOMPSON MINE GEOLOGY." CANADIAN INSTITUTE

  • Deposit

    OF MINING. MONTREAL. JUNE 1963.

  • Deposit

    NICKDATA, INC. A COMPREHENSIVE NICKEL INDUSTRY COST DATABASE

  • Deposit

    AND COSTING PROGRAM. 1991. ILMAR J. MARTENS,

  • Deposit

    THOMAS F. TORRIES.

  • Deposit

    BUREAU OF MINES INFORMATION CIRCULAR, 1991. AVAILABILITY

  • Deposit

    OF PRIMARY NICKEL IN MARKET-ECONOMY COUNTRIES. A

  • Deposit

    MINERALS AVAILABILITY APPRAISAL. DONALD I. BLEIWAS.

General comments

Subject category Comment text
Deposit PREVIOUS EVALUATION: 1991. SOURCE INDICATES BIRCHTREE TO HAVE BEEN ON STANDBY STATUS DUE TO PRODUCTION EXPANSION UNTIL 1989 WHEN PRODUCTION WOULD RESUME. NEW ORE RESOURCE GRADES ARE NI 2.02% AND CU 0.13% PEAK ANNUAL PRODUCTION IS 15,413 MT/YR (34 MLB/YR) NICKEL CONTAINED. OREBODY EXTEND TO DEPTH OF ABOUT 1200 METERS.

Reporter information

Type Date Name Affiliation Comment
Reporter 15-SEP-92 Bleiwas, Donald U.S. Bureau of Mines