Database name: |
Canadian Iron Formation |
Custodial agency: |
Geological Survey of Canada |
Compilers: |
G. A. Gross and E. M. Hillary |
Release date: |
2014-10-01 |
|
|
Deposit name(s): |
Mary River - No. 3a (occurrence) |
Political location(s): |
Canada; Province or state: Nunavut; Subprovince or locality: North Baffin Island |
NTS map data: |
037G05 |
Deposit clan (type): |
iron formation |
Deposit (sub) types: |
Algoma type; Reference: Watts Griffis and McOuat Ltd., 1983: A Summary Report on the Mary River Deposit of Baffinland Iron Mines Ltd. (062161); Mineral Assessment Report, Baffinland Iron Mines Ltd., Indian and Northern Affairs Canada, Publication code 062161 |
Deposit status: |
advanced project; Size category: significant; Status comments: On the basis of 10 trench samples, an open pittable tonnage to a depth of 350 ft was estimated to be 3 million tons of 68.70 % Fe. |
Geologic province: |
Canadian Shield |
Geologic subprovince: |
Rae craton |
Geologic district: |
Committee belt |
Deposit object located: |
centre of mineralized zone |
Commodities: |
Fe |
Geological ages: |
Archean (host rocks) |
Host rocks: |
(1) sedimentary; iron formation; Metamorphic grade: amphibolite - lower; Component: mineralization zoneExternal host rock forms: | tabular sedimentary body | Internal host rock structures: | massive granular | Host rock stratigraphy: | Mary River group |
|
Mineralogy: |
(mineralization - massive / mineralization zone): magnetite, specularite |
Qualified comments: |
(Applies to: location and access) Located 1 mile E-NE of No. 3 deposit at an elevation of 1800 feet above sea level.
(Applies to: mineralization) The deposit outcrops in an area 600 x 75 feet as a part of 2 mile magnetic belt westward to Deposit No. 3 and extending for at least 1 mile further east, whereby increasing the possibility of additional reserves to be tested by drilling. The mineralization consists of granular magnetite and hematite.
(Applies to: reserve/resource descriptions) On the basis of 10 trench samples an open pittable tonnage to a depth of 350 feet was estimated to be 3 million tons of 68.70 % Fe. |
Links to other databases: |
NUMIN; Key value: 037GSW0009 |
References: |
Gross, G. A., 1966 |
The origin of high grade iron deposits on Baffin Island, N.W.T. |
Canadian Mining Journal, Volume 87, p. 111 - 114 |
Hahn, J., 1966 |
Feasibility Study and Cost Estimate, Baffinland Iron Mines Limited, Mary River Area, Franklin (062243) |
Mineral Assessment Report, Baffinland Iron Mines Limited, Indian and Northern Affairs Canada, Publication code 062243 |
Neczkar, E.; Westervelt, R. D., 1963 |
Engineering Field Report No 1 on Mary River Iron Deposits (017056) |
Mineral Assessment Report, Baffinland Iron Mines Ltd, Indian and Northern Affairs Canada, Publication code 017056 |
Sangster, D. F., 1998 |
Mineral deposits compilation and metallogenic domains, northern Baffin Island and northern Melville Peninsula, Northwest Territories |
Geological Survey of Canada, Open File 3635, Scale 1:1000000 |
Watts Griffis and McOuat Ltd., 1983 |
A Summary Report on the Mary River Deposit of Baffinland Iron Mines Ltd. (062161) |
Mineral Assessment Report, Baffinland Iron Mines Ltd., Indian and Northern Affairs Canada, Publication code 062161 |
|
Associated group(s): |
Mary River Iron Deposits (33) |