Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41I05SW00076

Record: MDI41I05SW00076

General

Mineral Record Identification
Record Name(s) Shakespeare - 1979, Falconbridge - 1979
Related Record Type Simple
Related Record(s)
Record Status Past Producing Mine With Reserves or Resources
Date Created 1979-Dec-13
Date Last Modified 2024-Mar-22
Created By
Revised By

Commodities

Primary Commodities: Copper, Nickel, Palladium, Platinum

Secondary Commodities: Vanadium, Cobalt, Rare Earth Elements, Rhodium, Gold



Location

Township or Area: Shakespeare

Latitude: 46° 21' 3.14"    Longitude: -81° 49' 49.2"

UTM Zone: 17    Easting: 436113   Northing: 5133368    UTM Datum: NAD83

Resident Geologist District: Sudbury

NTS Grid: 41I05SW

Point Location Description: From satellite imagery of open pit.

Location Method: Other



Exploration History

1941: Frobisher Exploration staked the property and over the next several years carried out a plane table survey, geological mapping and diamond drilling in the area of the west zone. Drill holes completed in 1942 included 12 short holes totaling 819 m on the Shakespeare deposit. 1948: 3 DDH totaling 1,360 m. 1947: Falconbridge Nickel Mines Limited (“Falconbridge”) (now Glencore) acquired the claims from Frobisher Exploration, and commenced an exploration program. 1951: drilled 12 short holes totaling 1,892 m. 1985: 16 holes totaling 1,030 m were drilled. 1986: 4 holes totaling 1,617 m were drilled to test the deposit at depth and along strike to the southwest. Falconbridge decided that the project could not meet economic parameters to move the project forward. 2000-01: property was acquired by URSA Major through a joint venture with Falconbridge. URSA carried out digital compilation, geological mapping, sampling, and some limited geophysical surveys. 2002-12: URSA carried out an extensive amount of diamond drilling, ground and bore hole geophysics, surface trenching, geotechnical mapping probing, feasibility and base line environmental studies, public consultations and successful permitting. URSA Major carried out diamond drilling programs on the deposit from 2002-2006 and from 2010-2012. 2007: URSA Major took a 50,000 tonne bulk sample. 2008: URSA Major began pre-production mining. 2010: pre-production continued, with commercial production beginning on May 27. 2012: production was suspended on January 27. 2017: Magna Mining acquired the property. 2018: Magna conducted borehole EM surveys on 18 holes and drilled 13 DDH totaling 3740 m. 2019: Magna carried out sampling, stripping, and mapping. 2020: Magna carried out channel sampling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
60342 20000018908 20000018908
2.57305 20000013855 20000013855
2.50441 20000007040 20000007040
2.50483 20000007736 20000007736
2.47512 20000008053 20000008053
2.38522 20000007874 20000007874
2.38834 20000003466 20000003466
2.31385 20000001037 20000001037
2.30836 20000001126 20000001126
2.34608 20000002141 20000002141
2.30754 20000005480 20000005480
2.34494 20000005483 20000005483
2.28820 20000000230 20000000230
2.27822 41I05SW2017 41I05SW2017
2.30700 20000000769 20000000769
2.30863 20000005478 20000005478
2.27681 41I05SW2019 41I05SW2019
2.23306 41I05SW2009 41I05SW2009

Geology

Province: Southern



Geology Comments

Sep 10, 2021 (Therese Pettigrew) - The Dunlop-Shakespeare-Baldwin-Porter Township area is located along the southern margin of the Superior Province of the Canadian Shield and has had a prolonged evolutionary history involving the interaction between three structural provinces including the Superior, Southern and Grenville. The area surrounding the Shakespeare property is predominantly underlain by units of the Huronian-aged Mississagi quartzite and gabbroic intrusions, which trend approximately north northeast and dip moderate to steeply north. In particular, the Mississagi quartzites dominate the north and south limit of the land package and are typically whitish, medium grained and uniform, with cross-bedding features providing way-up indicators.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Gabbro 1 Host
Quartz Arenite 2 Adjacent

Lithology Comments

Sep 10, 2021 (Therese Pettigrew) - The Shakespeare copper-nickel deposit is hosted within gabbroic rocks (Shakespeare Intrusion) of the Nipissing Intrusive Suites situated along the north contact between the mafic intrusive body which crosses the Property and quartzites of the Mississagi Formation. The Shakespeare intrusion is a differentiated gabbroic intrusive sill that occurs predominantly in the south to central portion of the Shakespeare property and is between 300-500 m wide, extending over a 14 km strike length. In cross-section, the intrusion has an arcuate profile in which the dip shallows with depth, from ~80° to 40° to the North (Armitage and Laporte, 2021). The intrusive sill is mainly dark-grey, fine grained and predominantly consists of gabbro. According to Sproule (et al. 2007), the intrusion can be subdivided into; 1) the Lower Group composed of unmineralized pyroxenite and gabbro and; 2) an Upper Group composed of mineralized melagabbro, quartz gabbro, and biotite quartz gabbro-diorite. The base of the Upper Group is the primary host for the sulphide mineralization in the Shakespeare complex. The presence of a chilled margin between the Upper and Lower Groups suggests that the Lower Group was partly crystallized as a second pulse of sulfur-saturated magma, (i.e., the Upper Group) entered the sill complex. Mineralized melagabbro dykes are also recorded intruding into the lower unmineralized gabbro/pyroxenite package of the Lower Group. This may represent feeder dykes to the overlying Upper Group or small injections of Upper Group material, cutting downward into the underlying Lower Group (Sproule et al. 2007; Dastil 2014). The entire intrusion has subsequently undergone greenschist facies metamorphism, likely associated with the regional Penokean orogeny (1900-1850 Ma) (Dastil 2014).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
5ChalcopyriteEconomicOre
10PentlanditeEconomicOre
15PyriteEconomicOre
20PyrrhotiteEconomicOre

Mineralization Comments

Sep 10, 2021 (Therese Pettigrew) - The Shakespeare intrusion hosts semi-massive to disseminated sulfides. Sulfides, including pyrrhotite, chalcopyrite, pentlandite, and lesser pyrite, are present throughout the intrusion in varying proportions, mostly in trace amounts. Significant accumulations are present as: 1) Disseminations of pyrrhotite, chalcopyrite, and pentlandite close to the melagabbro/gabbro contact, usually ~1 mm in size, typically comprising <1% of the rock; 2) Heavily disseminated to patchy net-textured (10-15%) pyrrhotite, chalcopyrite, and pentlandite, in rounded blebs that reach up to 2-5 cm in size, in the upper zone of the melagabbro; 3) Blebby pyrrhotite and chalcopyrite in the lower sections of the melagabbro and the base of the quartz gabbro. The sulfides have experienced variable degrees of deformation and recrystallization during metamorphism. They vary from pristine magmatic blebs, to recrystallized blebs, to stringers, the latter of which tend to be richer in chalcopyrite. Where the mineralization is proximal to shear zones that cross-cut the deposit, the sulphides are often sheared and attenuated. These sheared sulphides, together with the patchy-network textured mineralization, create an interconnectivity in the sulphides that allows portions of the deposit to be identified by remote electromagnetic (EM) geophysics surveys, a valuable tool in exploring for extensions to the deposit. The mineralized zones also contain abundant inclusions of quartzite, blue quartz eyes, and rare diorite. The total strike length of Shakespeare mineralization is approximately 1,700 m and the mineralization extends to a depth of ~550 m (open at depth). The deposit is subdivided into a West and East resource (Armitage and Laporte, 2021). According to assessment work data, the average grade of mineralization is about 0.4% Ni, 0.4% Cu, and minor vanadium, platinum, palladium, rhenium, and gold (Card et al., 1970).



Mineral Record Details

Classification
RankClassification            
1 Mafic-Ultramafic Intrusion
1 Magmatic
Characteristics
Rank Characteristic            
1 Intrusive
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Shakespeare Open Pit 2021 Inferred Mineral Resource 1682000 2021 NI 43-101 report, p. 137 Cobalt 0.02 %, Copper 0.31 %, Gold 0.17 g/t, Nickel 0.29 %, Palladium 0.3 g/t, Platinum 0.27 g/t
Shakespeare Underground 2021 Indicated Mineral Resource 2489000 2021 NI 43-101 report, p. 137 Cobalt 0.02 %, Copper 0.38 %, Gold 0.19 g/t, Nickel 0.33 %, Palladium 0.35 g/t, Platinum 0.31 g/t
Shakespeare Underground 2021 Inferred Mineral Resource 2905000 2021 NI 43-101 report, p. 137 Cobalt 0.02 %, Copper 0.39 %, Gold 0.21 g/t, Nickel 0.34 %, Palladium 0.37 g/t, Platinum 0.34 g/t
Shakespeare Open Pit 2021 Indicated Mineral Resource 14436000 2021 NI 43-101 report, p. 137 Cobalt 0.02 %, Copper 0.37 %, Gold 0.19 g/t, Nickel 0.34 %, Palladium 0.37 g/t, Platinum 0.34 g/t
Production Data
Year Tonnes Commodities Reference Comment
2011 151910 Silver 10260 Ounces
Gold 960 Ounces
Cobalt 64700 Pounds
Copper 1234000 Pounds
Nickel 1052000 Pounds
Palladium 1840 Ounces
Platinum 1650 Ounces
2021 NI 43-101 p. 9
2010 166913 Silver 12100 Ounces
Gold 1100 Ounces
Cobalt 92204 Pounds
Copper 1499000 Pounds
Nickel 1314000 Pounds
Palladium 2100 Ounces
Platinum 1900 Ounces
2021 NI 43-101 p. 9 9 months of production ending January 31, 2011
2009 29533 Cobalt 6000 Pounds
Copper 182000 Pounds
Nickel 118000 Pounds
2021 NI 43-101 p. 9 Pre-production
2008 83029 Cobalt 24.9 Tonnes
Copper 332.1 Tonnes
Nickel 313.8 Tonnes
2021 NI 43-101 p. 9 Bulk sample returned 0.39% Ni, 0.4% Cu, 0.03% Co
2006 50000 Gold 9500 Grams
Cobalt 15 Tonnes
Copper 230 Tonnes
Nickel 200 Tonnes
Palladium 24000 Grams
Platinum 19000 Grams
2021 NI 43-101 p. 9 Bulk sample returned 0.38 g/t Pt, 0.48 g/t Pd, 0.19 gt Au, 0.4% Ni, 0.46% Cu, 0.03% Co

References

Publication - Mineral Resource Estimate Update for the Shakespeare Ni-Cu-PGE Sulphide Deposit, Shakespeare Project, Ontario, Canada

Publication Number: 2021 NI 43-101 Date: 2021

Author: Armitage, A., Laporte, M-A.

Publisher Name: SGS for Magna Mining

Location: SEDAR


Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario

Publication Number: GSC OF 1087 Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999


Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 264-265  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Shakespeare Township, District of Sudbury

Publication Number: P0614 Date: 1997

Author: Card K.D., Palonen P.A., Siemiatkowska K.M., Masson S.L.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


MonoMap - Geology of the Dunlop-Shakespeare area, District of Sudbury

Publication Number: R139 Page: 42  Date: 1976

Author: Card K.D., Palonen P.A.

Publisher Name: Ontario Division of Mines

Location:


Folio - Shakespeare Township, District of Sudbury

Publication Number: GDIF283 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