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Ontario Geological Survey
Permanent Link to this Record:
MDI41I14SE00004
| Record Name(s) | Nickel Offsets Mine - 1943, Mining Location WD250 - 1938, Ross Mine - 1938, Mining Location WR 5 Nickel-Copper-Sulphide - 1938 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine With Reserves or Resources |
| Date Created | 1979-Nov-06 |
| Date Last Modified | 2023-Jan-10 |
| Created By | |
| Revised By |
Primary Commodities: Nickel, Platinum, Palladium, Gold, Copper
Township or Area: Foy
Latitude: 46° 45' 30.97" Longitude: -81° 14' 22.11"
UTM Zone: 17 Easting: 481712.003 Northing: 5178367.002 UTM Datum: NAD83
Resident Geologist District: Sudbury
NTS Grid: 41I14SE
Point Location Description: No. 1 shaft
Location Method: AMIS Site Visit
Access Description: From the town of Chelmsford, turn north off hwy144 onto Errington St. Proceed to Main St., turn west onto Montpellier road. Proceed northerly onto Morgan road to Nickel Offset road. Follow Nickel Offset road approx 8km northerly. Follow ATV trail approx 5.5km northerly.
1937-38: Sudbury Offsets Limited - ground geophysics, mapping, DD, shaft sinking and underground exploration. 1943-44: Nickel Offsets Limited - mine development, underground mining. 1987-88: United Reef Petroleums Limited: compilation, mapping, ground geophysics, DD 2003: United Reef Limited: sampling. 2009: Ursa Major Minerals Incorporated - ground geophysics, DD-5-1807 m
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Bowell-0016 | 41I14SE0025 | 41I14SE0025 |
| 63.5407 | 41I14SE0028 | 41I14SE0028 |
| Foy-0014 | 41I14SE0039 | 41I14SE0039 |
| Foy-0013 | 41I14SE0040 | 41I14SE0040 |
Province: Southern
Subprovince: Sudbury Structure
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Quartz Diorite | 1 | Quartz Diorite | Host |
|---|---|---|---|---|
| Granite | 2 | Adjacent |
May 14, 2010 (A Wilson) - The mineralization occurs in the Foy Offset dike. The dike is composed of quartz diorite breccia and quartz diorite. The dike is irregular and ranges from 20 to 400 feet in thickness. The brecciated fragments comprise granite, migmatite and metavolcanic rocks.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore | ||||
| 2 | Pentlandite | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore |
May 14, 2010 (A Wilson) - Diamond drilling by Ursa Major Minerals intersected a new lens of high-grade massive sulphides that graded 3.12% Ni, 1.15% Cu and 3.6 g/t precious metals over 1.6 m (May 3, 1010 press release). The mineralization on the property consists of pods, lenses and veins of massive and semi-massive sulphides. Grab samples of previously mined material collected by United Reef Limited in 2003 returned: 2.81% Ni, 1.77% Cu, 1.71 g/t Pt, 1.933 g/t Pd, 0.05 g/t Au (Shaft 1 muck); 3.38% Ni, 0.07% Cu, 0.83 g/t Pt, 1.04 g/t Pd, 0.06 g/t Au (Shaft 1 waste).
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Nickel Offsets Mine | 2010 | Unclassified | 350000 | Ursa Major Minerals Incorporated, spring 2010 investors presentation | Copper 1.45 %, Nickel 1.92 % |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1957 | 2277 |
Copper 32766 Pounds Nickel 54333 Pounds |
R065 | 2511 tons |
| 1956 | 53366 |
Copper 925046 Pounds Nickel 58826 Pounds |
R065 | 58,826 tons |
| 1955 | 58073 |
Copper 865602 Pounds Nickel 1342963 Pounds |
R065 | 64,015 tons |
| 1954 | 52386 |
Copper 972361 Pounds Nickel 1203355 Pounds |
R065 | 57,746 tons |
| 1953 | 13755 |
Copper 199313 Pounds Nickel 249504 Pounds |
R065 | 15,163 tons |
| 1944 | 4134 |
Copper 227799 Pounds Nickel 354716 Pounds |
R065 | 4557 tons shipped |
| 1943 | 5200 |
Copper 348357 Pounds Nickel 444221 Pounds |
R065 | 5733 tons shipped |
Map - Tyrone and Foy townships, Sudbury District
Publication Number: M2133 Scale: 1:31,680 Date: 1969
Author: Card K.D., Meyn H.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Sudbury data series, Foy Township, Sudbury District
Publication Number: P2472 Scale: 1:15,840 Date: 1982
Author: Adlington R.
Publisher Name: Ontario Geological Survey
Location:
Map - Foy Township, District of Sudbury
Publication Number: P0315 Scale: 1:15,840 Date: 1997
Author: Card K.D., Meyn H.D.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Leinster-Bowell area, District of Sudbury
Publication Number: R065 Page: 34-38 Date: 1969
Author: Card K.D., Meyn H.D.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 243 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Folio - Foy Township, District of Sudbury
Publication Number: GDIF441 Date: 1997
Author: Sudbury RGO
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Sudbury Resident Geologist District Office