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Dome

Plant in Ontario, Canada with commodities 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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10133059
MAS/MILS ID 1220400031
Record type Site
Current site name Dome
Alternate or previous names Pioneer Gold Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -81.24038, 48.4631 (WGS84)
Elevation 300
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
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Ankerite Unknown
Petzite Unknown
Pyrite Unknown
Pyrrhotite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -81.24038, 48.4631
ListMap

Economic information

Ore body information

  • Strike N05E
    Dip 65W
    Thickness 15M
    Length 3200M
    Width 1600M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin METAMORPHISM
    Secondary mode of Origin CONT METASOMATIC
    Primary Ore Control FOLDING
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PROPYLITIC
    Type of Wallrock Alter. #2 CARBONATE SILIC
    Strike And Dip N05E:65W
    Minimum Depth to Top 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 860926
  • Area 1448HA
    Field Value
    Total Surface Area (HA) 1448
    Date of Last Modification 910418

Comments on the geologic information

  • FOUR TYPES OF ORE ARE MINED AT DOME; SCHIST VIENS CONSISTING OF ANKERITE VIENS AND QUARTZ-TOURMALINE VEINS; "TENSION VEINS" IN MASSIVE ROCKS OR CROSSING TYPE 1 VEINS CONSISTING OF MASSIVE LAVAS, STOCKWORKS IN SEDIMENTARY ROCKS AND IN PORPHYRIES; MINERALIZED ROCK WITH GOLD ASSOCIATED WITH SULFIDES; AND SILICIFIED GREENSTONE.

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1909
Mining method Filled Stopes
Year of first production 1910
Plant type Leach
Plant subcategory Electrostatic
Milling method Hydrometallurgy Unspecified

Mining district

District name Porcupine Mining Distric

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Patented

Ownership information

  • Type Owner-Operator
    Owner Placer Dome Inc. (Placer Dome Canada Ltd.)
    Interest 100
    Home office Canada
    Year 1997

Production statistics

  • Year 1910
    Description Ore Mined 224 Metric Tons Per Year
  • Year 1930
    Description Ore Mined 635000 Metric Tons Per Year
  • Year 1965
    Description Ore Mined 646799 Metric Tons Per Year
  • Year 1970
    Description Ore Mined 626299 Metric Tons Per Year
  • Year 1975
    Description Ore Mined 642299 Metric Tons Per Year
  • Year 1980
    Description Ore Mined 615299 Metric Tons Per Year
  • Year 1985
    Description 4.38 G Au 934545 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 4g/mt
  • Year 1986
    Description 4.58 G Au 993636 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 5g/mt
  • Year 1987
    Description 4.31 G Au 988182 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 4g/mt
  • Year 1988
    Description 3.45 G Au 1000000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 3g/mt
  • Year 1989
    Description 3.91 G Au 1182000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 4g/mt
  • Year 1990
    Description 3.36 G Au 818000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 3g/mt
  • Year 1991
    Description Ore Milled @ 4.08 G Au 1241061 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 4g/mt
  • Year 1992
    Description Ore Milled @ 3.36 G Au 1368035 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 3g/mt
  • Year 1995
    Description Ore Milled @ 3.1 G Au 2759000 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 3g/mt
  • Year 1996
    Description Ore Milled @ 2.6 G Au 3832000 Mt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 3g/mt

Comments on the production information

  • THE TWO PRODUCTS ARE ACTUALLY PRODUCED AS ONE CONCENTRATE DORE BULLION WHICH IS SEPARATED INTO THE RESPECTIVE PRODUCTS AND REFINED. THE REFINED GOLD IS RETURNED TO DOME MINES.
  • DESCRIPTION IS THE MILL AU FEED GRADE

Reserves and resources

  • Type In-situ
    Estimate year 1991
    Demonstrated 6260000mt ore
    Total resources 6260000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.94 g/mt Gold Major 1991
  • Type In-situ
    Estimate year 1992
    Demonstrated 8436821mt ore
    Total resources 8436821mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.9 g/mt Gold Major 1992
  • Type In-situ
    Estimate year 1993
    Demonstrated 8470000mt ore
    Total resources 8470000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.7 g/mt Gold Major 1993
  • Type In-situ
    Estimate year 1993
    Demonstrated 18517000mt ore
    Total resources 18517000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3.43 g/mt Gold Major 1993
  • Type In-situ
    Estimate year 1995
    Demonstrated 333808000mt ore
    Total resources 333808000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 3 g/mt Gold Major 1995
  • Type In-situ
    Estimate year 1997
    Demonstrated 30050000mt ore
    Total resources 30050000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.8 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1997
    Demonstrated 13762000mt ore
    Total resources 13762000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.9 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1997
    Demonstrated 43812000mt ore
    Total resources 43812000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 2.83 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1992
    Demonstrated 8436821mt ore
    Total resources 8436821mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.9 g/mt Gold Major 1992
    Silver Ag 0.82 g/mt Silver Minor 1992

Comments on the reserve resource information

  • RECORD 9 ARE THE RESOURCES USED IN THE 1992 CANADIAN GOLD STUDY SEE THE PDI 1991 AR, P 15 FOR DATA. SILVER GRADE DATA BASED ON DATA FROM THE 1982 GOLD STUDY.
  • MARTIX 1 COLUMN 1, RESOURCES DATA USED IN THE 1982 GOLD STUDY. MARTIX 1 COLUMN 3, RESOURCES DATA USED IN THE 1992 CANADIAN GOLD STUDY.
  • ADIT ORE DATA TOTAL OF "R" RECORDS 6 & 7: PROVEN + PROBABLE + MEASURED + INDICATED ORE AS OF 12/31/96: ADIT PRODUCTION DATA (1997) BASED ON ORE MILLED IN 1995 & 1996.

Workings at the site

  • Type of workings Underground
    Length 232.6M
    Overall depth 714M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN STOPE
    Percent Recovery 100
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. SUPPORTING
    Mine Support Chars. OPEN STEEL SETS
    Number of Shafts 4
    1st Condition of Workings OPEN
    Capacity 2365
    Capacity Units MT ORE/DAY
    Unit Production Cost 34.34
    Units of Production $/MT ORE
    Operating Days per Year 260
    Operating Shifts per Day 2
    Year of Information 1982

Comments on other economic factors

  • THE DILUTION OF THE ORE IS 10% AT DOME. THREE TYPES OF MINING ARE USED AT DOME; CUT & FILL 36%; SHRINKAGE 27% AND LONGHOLE 37% THE MINE IS SERVED BY 1 OPERATING SHAFT, SHAFT NO.3, AND 3 WINZES. A SECOND SHAFT IS BEING DEVELOPED FROM THE SURFACE NO. 8 TO BE COMPLETED IN 84.THE DEPTH OF THE NO.7 WINZE IS APPROXIMATELY EQUAL TO THE PLANNED DEPTH OF SHAFT 8, 1650 METERS.
  • THE DORE BULLION IS SENT TO THE ROYAL CANADIAN MINT IN OTTAWA FOR SEPARATION AND REFINEMENT.

Reference information

Bibliographic references

  • Reserve-Resource

    MATRIX 1 COLUM 3 ARE THE RESOURCES USED IN THE 1992 CANADIAN

  • Reserve-Resource

    GOLD STUDY.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1991-92, P. 317.

  • Reserve-Resource

    PLACER DOME INC., 1991 ANNUAL REPORT, PAGE 15.

  • Reserve-Resource

    PLACER DOME INC., 1992 ANNUAL REPORT, PAGE 12.

  • Reserve-Resource

    CANADIAN MINES HANDBOOK, 1996-97, PP. 342-343.

  • Reserve-Resource

    PLACER DOME INC., 1996 FORM 10-K REPORT, PP. 14, 15.

  • Deposit

    ACRES DAVY MCKEE,"GOLD MINING IN CANADA," APRIL 1981.

  • Deposit

    ANNUAL REPORTS. 1980

  • Deposit

    BELL, D.R., AND ROGERS, D.S.,-"A PROBLEM RELATED TO

  • Deposit

    OUTLINING GOLD DEPOSITS ALONG THE GREENSTONE NOSE AT THE

  • Deposit

    DOME MINE, SOUTH PORCUPINE, ONTARIO." PRESENTED AT THE 81ST

  • Deposit

    CIM ANNUAL GENERAL MEETING, MONTREAL, 1979.

  • Deposit

    CANADIAN MINES HANDBOOK, ALL YEARS INVOLVED.

  • Deposit

    CANADIAN MINING JOURNAL; REFERENCE MANNUAL AND BUYERS

  • Deposit

    GUIDE, A SOUTHHAMPTON BUSINESS PUBLICATION, 1981.

  • Deposit

    CIMM: GEOLOGY DIVISION CIM GOLD SYMPOSIUM AND FIELD

  • Deposit

    EXCURSION SEPTEMBER 12-16, 1980.

  • Deposit

    (F.P.) THE FINANCIAL POST CORPORATION SERVICE, REPORT ON

  • Deposit

    DOME MINES LTD., MACLEAN-HUNTER LTD., REVISED, OCTOBER 19,

  • Deposit

    1980.

  • Deposit

    FRYER, B.J., DERRICH, R., HUTCHINSON, R.W., PIERCE, M.G.,

  • Deposit

    AND ROGERS, D.S., -"ARCHAEN PRICIOUS-METAL HYDROTHERMAL

  • Deposit

    SYSTEMS, DOME MINE, ABITIBI GREENSTONE BELT; I, PATTERNS OF

  • Deposit

    ALTERATION AND METAL DISTRIBUTION," CANADIAN JOURNAL OF

  • Deposit

    EARTH SCIENCES, VOL. 16., 1979.

  • Deposit

    HOLMES, T.C., DOME MINES LIMITED-"IN GEOLOGY AND ORE

  • Deposit

    DEPOSITS OF TISDALE TOWNSHIP," ONTARIO DIVISION OF MINES,

  • Deposit

    GEOLOGICAL REPORT 58, PP.82-89, 1968.

  • Deposit

    MILLING PRACTICE IN CANADA, 1977.

General comments

Subject category Comment text
Deposit THE DOME MINE WAS DISCOVERED ON A PROSPECTING EXPEDITION.

Reporter information

Type Date Name Affiliation Comment
Reporter 22-JUL-97 Buckingham, David A. 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:

  • Placer Dome Inc. (Placer Dome Canada Ltd.) — acquired by Subsidiary of Barrick Gold (2006)
    Acquired by Barrick Gold in 2006.

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.

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