Ontario Geological Survey
Permanent Link to this Record:
MDI52G15NW00007
| Record Name(s) | Lyon Lake - 1969 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1984-Oct-24 |
| Date Last Modified | 2022-Jun-10 |
| Created By | |
| Revised By |
Primary Commodities: Zinc, Copper, Silver
Secondary Commodities: Gold, Lead
Township or Area: Six Mile Lake Area
Latitude: 49° 53' 13.33" Longitude: -90° 53' 24.35"
UTM Zone: 15 Easting: 651558.87 Northing: 5528205.61 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52G15NW
Point Location Description: AMIS location
Location Method: Conversion from MDI
1969: staked by Mattagami Lake Mines Ltd. 1969-71: Mattagami Lake Mines drilled at least 51 DDH m. 1979: Noranda carried out underground development including installation of crushing and conveying in the 1000 foot level. 1980: Production began in October. 1991: mine closed in May.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52G15NW0015 | 52G15NW0100 | 52G15NW0100 |
| 52G15NW0021 | 52G15NW0066 | 52G15NW0066 |
Province: Superior
Subprovince: Wabigoon
Belt: Sturgeon Lake
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Felsic lava flow-unsubdivided | 1 | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Near | ||
| Ironstone-unsubdivided | 3 | Near |
Jan 28, 2020 (Therese Pettigrew) - The Lyon Lake deposit is hosted within the South Sturgeon Lake volcanic pile of Archean age, which consists of several cycles of basic intermediate and felsic volcanic materials overlain by a sedimentary iron formation and built upon a plutonic base (Franklin, 1975). The top 50 m of the second felsic cycle, according to mine terminology, contains the mineralization within quartz-phenocryst-bearing felsic lapilli tuff and underlying thin discontinuous graphitic sediments and altered coarse pyroclastics. The basal andesitic member of the overlying cycle forms the hanging wall to the ore deposits. Although there is no alteration pipe below the deposits, the coarse footwall rocks are permeated by chlorite, garnet, carbonate, iron sulphide and magnetitie-bearing veins intensifying from west to east (Harvey and Hinzer, 1981).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Sphalerite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore | ||||
| 4 | Galena | Economic | Ore | ||||
| 5 | Arsenopyrite | Economic | Ore | ||||
| 6 | Pyrrhotite | Economic | Ore | ||||
| 7 | Magnetite | Economic | Ore | ||||
| 1 | Graphite | Economic | Gangue |
Jan 28, 2020 (Therese Pettigrew) - The South Sturgeon assemblage is composed of a well-preserved bimodal, subaerial to subaqueous caldera complex hosting several zinc-copper-lead (-gold-silver) VMS deposits that, between 1972 and 1991 produced a total of 20 million tons of ore. The caldera eruptive history consists of subaerial to shallow basaltic shield volcanism overprinted by caldera-forming subaerial to subaqueous explosive felsic eruptions. The volcaniclastic units are principally represented by monomictic felsic lapilli tuffs, tuffs and breccias, and are interpreted as gravitational deposition of volcanic clasts originating from the eruption or from the subaqueous fragmentation of felsic domes. The subaqueous bimodal volcanism was accompanied by seawater infiltration, which triggered a long period of hydrothermal activity, creating optimal conditions for the VMS formations. The mineralization in the South Sturgeon assemblage is mainly composed of sphalerite-pyrite-chalcopyrite-galena-arsenopyritepyrrhotite with magnetite. The mineralization is contained mainly within the stratabound ore, but is also disseminated and in quartz veins beyond the orebody. The Mattabi, F-Group and Sturgeon Lake mine sites represent the primary stratabound massive sulphide deposits, whereas the Lyon Lake and Creek Zone were formed during a later remobilization controlled by northwest shearing (Etienne et al., 2019).
| Rank | Classification |
|---|---|
| 1 | VMS Base Metal |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Lyon Lake | 1991 | Exhausted | 1 | Mine was closed in May 1991 after ore was depleted | ||
| Lyon Lake | 1979 | Indicated Mineral Resource | 3246797 | OFR6360 p. 37-4 | 3.95 Mtons grading 6.53% Zn, 1.24% Cu, 0.63% Pb, 141.5 gpt Ag and 0.01 opt Au |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1991 | 323865 |
Silver 46181 Kilograms Gold 138 Kilograms Copper 3160 Tonne Lead 3380 Tonne Zinc 27303 Tonne |
1991 Canadian Minerals Yearbook p. 53.5 | 3160 T Cu, 3380 T Pb, 27303 T Zn, 46181 kg Ag, 138 kg Au. Closed May 1991. |
| 1990 | 341827 |
Silver 46080 Kilograms Gold 120 Kilograms Copper 3815 Tonne Lead 2992 Tonne Zinc 29688 Tonne |
1990 Canadian Minerals Yearbook p. 71.5 | 3815 T Cu, 2992 T Pb, 29688 T Zn, 46080 kg Ag, 120 kg Au |
| 1989 | 623025 |
Silver 53212 Kilograms Gold 157 Kilograms Copper 3630 Tonne Lead 4201 Tonne Zinc 50195 Tonne |
1989 Canadian Minerals Yearbook p. 69.6 | 3630 T Cu, 4201 T Pb, 50195 T Zn, 53212 kg Ag, 157 kg Au |
| 1988 | 844789 |
Silver 73394 Kilograms Gold 216 Kilograms Copper 4001 Tonne Lead 7131 Tonne Zinc 77864 Tonne |
1988 Canadian Minerals Yearbook p. 70.7 | 4001 T Cu, 77864 T Zn, 7131T Pb, 73394 kg Ag, 216 kg Au. Mattabi mine closed Sept 1988 |
| 1987 | 875613 |
Silver 87859 Kilograms Gold 250 Kilograms Copper 5208 Tonne Lead 8760 Tonne Zinc 80815 Tonne |
1987 Canadian Minerals Yearbook p. 71.6 | 5208 T Cu, 80815 T Zn, 8760 T Pb, 87859 kg Ag, 250 kg Au |
| 1986 | 606653 |
Silver 61738 Kilograms Gold 164 Kilograms Copper 5628 Tonne Lead 4073 Tonne Zinc 46536 Tonne |
1986 Canadian Minerals Yearbook p. 69.5 | 5628 T Cu, 46536 T Zn, 4073 T Pb, 61738 kg Ag, 164 kg Au |
| 1985 | 843655 |
Silver 96308 Kilograms Gold 264 Kilograms Copper 7355 Tonne Lead 6420 Tonne Zinc 65837 Tonne |
1985 Canadian Minerals Yearbook p. 68.5 | 7355 T Cu, 65837 T Zn, 6420 T Pb, 96308 kg Ag, 264 kg Au |
| 1984 | 934451 |
Silver 100085 Kilograms Gold 240 Kilograms Copper 5467 Tonne Lead 4430 Tonne Zinc 72532 Tonne |
1983-1984 Canadian Minerals Yearbook | 5467 T Cu, 72532 T Zn, 4430 T Pb, 100085 kg Ag, 240 kg Au |
| 1982 | 242948 |
Silver 33981137 Grams Gold 92320 Grams Copper 2065 Tonnes Lead 2162 Tonnes Zinc 18367 Tonnes |
Canadian Minerals Yearbook, 1982, p. 17.10 | 0.85% Cu, 7.56% Zn, 0.89% Pb, 139.87 g/t Ag, 0.38 g/t Au |
| 1981 | 325649 |
Silver 38628484 Grams Copper 3093.7 Tonnes Lead 2539 Tonnes Zinc 24085.92 Tonnes |
Canadian Minerals Yearbook, 1981, p. 14.10 | 0.95% Cu, 6.83% Zn, 0.72% Pb, 118.62 g/t Ag |
| 1980 | 92000 |
Silver 9052800 Grams Copper 791.2 Tonnes Lead 561.2 Tonnes Zinc 5041.6 Tonnes |
Canadian Minerals Yearbook,1980, p. 158 | 0.86% Cu, 5.48% Zn, 0.61 % Pb, 98.4 g/t Ag. Production began in October |
Article - 1979 report of Sioux Lookout Resident Geologist
Publication Number: MP091.003 Page: 26 Date: 1997
Author: Janes D.A., Speed A.A.
Publisher Name: Ontario Geological Survey
Location:
Journal - Geology of the Lyon Lake Ore Deposits, Noranda Mines Limited, Sturgeon Lake Area, Ontario; In: CIM Bulletin, vol. 74, no. 833
Publication Number: CIM Bull v.74 Date: 1981
Author: Harvey, J.D., Hinzer, J.B.
Publisher Name: Canadian Institute of Mining, Metallurgy and Petroleum
Location:
MonoMap - Geology of the Sturgeon Lake area, districts of Thunder Bay and Kenora
Publication Number: R221 Date: 1983
Author: Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Glitter Lake area, District of Thunder Bay
Publication Number: R120 Date: 1974
Author: Trowell N.F.
Publisher Name: Ontario Division of Mines
Location:
Compend - Summary of Field Work and Other Activities, 2019
Publication Number: OFR6360 Date: 2019
Author: Ontario Geological Survey
Publisher Name: Ontario Geological Survey
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office