Database name: |
Canadian Iron Formation |
Custodial agency: |
Geological Survey of Canada |
Compilers: |
G. A. Gross and E. M. Hillary |
Release date: |
2014-10-01 |
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Deposit name(s): |
Hole 82-3 (occurrence); East Melville A Zone (occurrence); Area A (locality) |
Political location(s): |
Canada; Province or state: Nunavut |
NTS map data: |
047A06 (Roche Bay) |
Deposit clan (type): |
lode gold |
Deposit (sub) types: |
Au - iron formation hosted |
Deposit status: |
drilled showing |
Geologic province: |
Canadian Shield |
Geologic subprovince: |
Rae craton |
Deposit object located: |
Drill hole |
Commodities: |
Au; Fe |
Host rocks: |
(1) sedimentary; iron formation |
Metallogenic signatures: |
Au-As |
Mineralogy: |
(mineralization): gold, pyrite, pyrrhotite |
Qualified comments: |
(Applies to: location ) The location of drill hole 82-3 was taken from AR 062194 Map 1 Drill Hole Locations, and transferred to the map by Ford,1982 (Figure 7-3) in the Technical Report of the Roche Bay Magnetite Project (Advanced Explorations, 2007). Also see location of the grid on AR 062194 Fig 2.
(Applies to: mineralization) Sulphide mineralization (percentages unknown) has been reported in some areas of the BIF (core and outcrops) and is dominated by py-po with traces of cpy-asp. Additionally, the presence of trace amounts of gold and silver has also been identified.
Testing of samples in 1984 identified detectable gold values in layers which were poor in magnetite and rich in sulphides and iron-bearing silicates from the A & B Zones. The highest gold value from the A Zone was 0.017 oz/ton Au, from Hole 82-3, from a sample of non-magnetic tailings remaining from a sample interval of 12m of iron formation .
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Samples data: |
(1) Sample type: diamond drill; Sample dimensions: tailings of a 12m interval; Sample description: Hole 82-3 non-magnetic tailingsCommodities and grades in order of importance: | Au: 0.017 troy ounces/short ton |
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References: |
Ashley, R.; Nikhanj, J.; Melnbardis, J., 1985 |
Beneficiation Testing on Iron Concentrate, Borealis Explorations Ltd, Roche Bay Area (062194) |
Mineral Assessment Report, Borealis Exploration Ltd; Ashley R, Nikhanj J, Melnbardis J (Ont. Research Foundation) (operator), Indian and Northern Affairs Canada, Publication code 062194 |
Ashley, R.; Nikhanj, J., 1985 |
Report on Diamond Drilling, Borealis Explorations Ltd, Roche Bay Area (062193) |
Mineral Assessment Report, Borealis Exploration Ltd, Indian and Northern Affairs Canada, Publication code 062193 |
Palmer, P., 2007 |
Technical Report on Roche Bay Magnetite Project for Advanced Explorations Inc., February 14, 2007 |
SEDAR, February 14, 2007, Internet |
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