Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000000695

Record: MDI000000000695

General

Mineral Record Identification
Record Name(s) Eagle's Nest Project - 2010, Eagle One Deposit - 2008, Noront DDH NOT-07-05 - 2007, Double Eagle Property - 2003
Related Record Type
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 2009-Aug-11
Date Last Modified 2024-Apr-29
Created By
Revised By

Commodities

Primary Commodities: Nickel, Copper, Platinum, Palladium

Secondary Commodities: Silver, Gold



Location

Township or Area: BMA 526 862

Latitude: 52° 44' 25.77"    Longitude: -86° 17' 59.79"

UTM Zone: 16    Easting: 547262   Northing: 5843633    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 43D09NW

Point Location Description: precise

Location Method: Data Compilation

Access Description: Remote Location- Ring of Fire



Exploration History

2003: Noront Resources Ltd. - airborne geophysics. 2004-2006: Condor Diamond Corp. - ground geophysics. 2007-11: Noront Resources Ltd. - airborne geophysics, ground geophysics, gravity survey, and drilled 127 holes totalling 63,076 m (29 DDH in 2007, 17 DDH in 2008, 44 DDH in 2009, 34 DDH in 2010, and 3 DDH in 2011).


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.29682 20000000351 20000000351
2.29749 20000000371 20000000371
2.32643 20000001446 20000001446
2.37763 20000003353 20000003353
2.37704 20000002819 20000002819
2.39940 20000003719 20000003719
2.42415 20000004175 20000004175
2.42568 20000000294 20000000294
2.45972 20000004813 20000004813

Geology

Province: Superior

Subprovince: Sachigo

Terrane: North Caribou

Domain: Oxford-Stull

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Peridotite 1 Peridotite Host
Mafic lava flow-unsubdivided 2 Adjacent
Granodiorite 3 Footwall

Lithology Comments

Jun 02, 2017 (A Wilson) - The deposit is interpreted to be a mantle-derived ultramafic intrusion emplaced along the margin of a granodiorite pluton. The deposit is overlain by approximately 8 m of dolomitic limestone and sandstone. The deposit is a sub-vertically dipping body of massive magmatic sulphide in a pipe-like form approximately 200 m long, up to several tens of metres thick and at least 1200 m deep. It strikes northeast and occupies the northwestern margin of a vertically inclined serpentinized peridotite dyke that is present in subcrop. The present plunge of the keel of the dyke at the level of the deposit is about 70° along an azimuth of N180° from surface to a depth of 300 m.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyrrhotiteEconomicOre
2PentlanditeEconomicOre
3ChalcopyriteEconomicOre
4MagnetiteEconomicGangue

Mineralization Comments

Jun 02, 2017 (A Wilson) - Two styles of mineralization have been found in the deposit: massive and net-textured. Significant assays from discovery drill hole DDH NOT-07-01 are 1.84% Ni, 1.53% Cu, 1.14 g/t Pt, 3.49 g/t Pd, 0.13 g/t Au, and 4.80 g/t Ag over 36 m (from 56.0 to 92.0 m). A 4.1 m section of core from NOT-07-05 averaged 3.2% Cu, 3.62% Ni, 30.2 g/t Pt, 15.95 g/t Pd, 3.3 g/t Au, 8.1 g/t Ag, 0.84 g/t Rh, 0.15 g/t Os, 0.21g/t Ir and 0.42 g/t Ru. The massive sulphides tend to be coarse-grained with grain sizes up to 1 cm. Sometimes the pentlandite is aligned along microfractures. Medium- to very fine-grained massive sulphide veins are commonly found. These veins are often rich in silicate inclusions. The sulphides are described as massive, net-textured and disseminated. In 2009 two lenses of mixed disseminated to massive sulphides were intersected below the Eagle One Deposit in drill hole NOT-09-49. These lenses are located vertically below the deposit.


Jun 02, 2017 (Therese Pettigrew) - Other significant assays from NOT-07-05 are 4.10% Ni, 2.2% Cu, 2.09 g/t Pt, 7.13 g/t Pd, 0.42 g/t Au, and 6.30 g/t Ag over a 117.4 m length from 7.0 to 124.4 m, including 8.65% Ni, 10.90% Cu, 40.79 g/t Pt, 14.57 g/t Pd, 9.39 g/t Au, and 8.70 g/t Ag over a 3 m interval from 112.6-115.6 m (Burgess et al., 2012). Eagle’s Nest is a sub-vertically dipping body of massive magmatic sulphides (MMS) in the form of a flattened pipe approximately 200 m long and 60 m thick, and currently defined vertically to 1,650 m. The deposit remains open along strike and occupies the northwestern margin of a vertically-inclined serpentinized peridotite dyke that is present in subcrop over a north-south strike length of about 500 m with a maximum width of about 75 m. The massive sulphides within the top 250 m are confined to a volume occupying the northwestern tip of this body, and are bordered to the southeast by a thicker zone of net-textured sulphide hosted by serpentinized peridotitic cumulates. Below 250 m, the massive sulphides can be found throughout the mineralization and, in some cases, into the surrounding granodiorite. The dyke is open at the north and south ends, and plunges very steeply to the south or vertically. The exact attitude of the sulphide-filled keel at the northern tip of the dyke is impossible to state because of the irregularity of the contact. Although a considerable amount of local deformation is evident around the contacts, particularly where they are occupied by massive sulphide, the body appears to be essentially still in place and not significantly deformed. The host rock of the Eagle’s Nest ultramafic dyke is granodiorite that apparently post-dates the overlying ROF iron formation but clearly predates the intrusion of the peridotite. Because the host rocks are magnetically inert felsic rocks with little or no structural fabric and relatively low density, the intrusion is easy to recognize on magnetometer or gravimetric survey data. Inspection of the magnetometer survey results indicates that there is a second dyke parallel to and east of the Eagle’s Nest dyke, but offset en echelon to the southeast. This has been called the Eastern dyke. A third, the Southern dyke, occurs south of both of these, along strike with the Eagle’s Nest dyke (Burgess et al., 2012).



Mineral Record Details

Classification
RankClassification            
2 Mafic-Ultramafic Intrusion
1 Magmatic
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Eagle's Nest 2012 Proven + Probable Reserve 11131000 NI 43-101 09/04/2012 Copper 0.87 %, Gold 0.18 oz/t, Nickel 1.68 %, Palladium 3.09 g/t, Platinum 0.89 g/t
Eagle's Nest Main Zone 2012 Measured + Indicated Resource 11000000 NI 43-101 (09/04/2012) 1.78% Ni, 0.98% Cu, 0.99 g/t Pt, 3.41 g/t Pd, 0.20 g/t Au Copper 0.98 %, Gold 0.2 oz/t, Nickel 1.78 %, Palladium 3.41 g/t, Platinum 0.99 g/t
Eagle's Nest Main Zone 2012 Inferred Mineral Resource 8966000 NI 43-101 (09/04/2012) 1.10% Ni, 1.14% Cu, 1.16 g/t Pt, 3.49 g/t Pd, 0.30 g/t Au Copper 1.14 %, Gold 0.3 oz/t, Nickel 1.10 %, Palladium 3.49 g/t, Platinum 1.16 g/t
Eagle's Nest East Zone 2012 Inferred Mineral Resource 1615000 NI 43-101 (09/04/2012) 0.34% Ni, 0.09% Cu, 0.12 g/t Pt, 0.45 g/t Pd, 0.04 g/t Au Copper 0.09 %, Gold 0.04 oz/t, Nickel 0.34 %, Palladium 0.45 g/t, Platinum 0.12 g/t
Eagle's Nest 2012 Inferred Mineral Resource 8966000 NI 43-101 (09/04/2012) 1.10% Ni; 1.14% Cu, 1.16 g/tonne Pt; 3.49 g/tonne Pd, 0.3 oz/t Copper 1.14 %, Gold 0.3 oz/t, Nickel 1.10 %, Palladium 3.49 g/t, Platinum 1.16 g/t
Eagle's Nest 2012 Probable Mineral Reserve 5867000 NI 43-101 (09/04/2012) 1.38% Ni; 0.72% Cu, 1.01 g/tonne Pt; 3.45 g/tonne Pd, 0.18 oz/t Au Copper 0.72 %, Gold 0.18 oz/t, Nickel 1.38 %, Palladium 3.45 g/t, Platinum 1.01 g/t
Eagle's Nest 2012 Proven Mineral Reserve 5264000 NI 43-101 09/04/2012 2.02% Ni; 1.04% Cu; 1.01 g/tonne Pt; 3.45 g/tonne Pd; 0.18 oz/t Au Copper 1.04 %, Gold 0.18 oz/t, Nickel 2.02 %, Palladium 3.45 g/t, Platinum 1.01 g/t
Eagle’s Nest 2010 Indicated Mineral Resource 6900000 Baker et al. Technical Report Eagle's Nest Project Copper .95 %, Nickel 2.04 %, Palladium 3.4 g/t, Platinum 1.3 g/t
Eagle’s Nest 2010 Inferred Mineral Resource 4300000 Baker et al. Technical Report Eagle's Nest Project Copper .87 %, Nickel 1.42 %, Palladium .8 g/t, Platinum 3.4 g/t
Eagle One 2008 Indicated Mineral Resource 1834000 P & E Mining Consultants 2008, Technical Report Eagle One Deposit 79.2 million lbs Ni, 47.6 million lbs Cu, 9100 oz Au, 6,200 oz Pt, 230,500 oz Pd and 224,400 oz Ag Copper 1.18 %, Gold .15 g/t, Nickel 1.96 %, Palladium 3.91 g/t, Platinum 1.12 g/t, Silver 3.81 g/t
Eagle One 2008 Inferred Mineral Resource 1087000 P & E Mining Consultants 2008, Technical Report Eagle One Deposit 57.2 million lbs Ni, 30.5 million lbs Cu, 4600 oz Au, 47,900 oz Pt, 157,300 oz Pd and 147,000 oz Ag Copper 1.27 %, Gold .13 g/t, Nickel 2.39 %, Palladium 4.5 g/t, Platinum 1.37 g/t, Silver 4.21 g/t

References

Publication - Technical report and preliminary economic assessment on the Eagle One Deposit, Double Eagle Property, McFaulds Lake Area, James Bay Lowlands, Ontario, 108p.

Publication Number: NI 43-101 Date: 2008

Author: T. Armstrong, E. Puritch, A. Yassa, J.L. Pearson, A. Hayden and A. Partsch

Publisher Name:

Location: Timmins RGO files


Map - Precambrian Geology of the Hudson Bay and James Bay Lowlands Region Interpreted from Aeromagnetic Data-East Sheet

Publication Number: P3598-REV Scale: 1:500,000    Date: 2008

Author: Stott G.M.

Publisher Name: Ontario Geological Survey

Location:


Publication - Technical report and resource estimate on the Eagle One Deposit, Double Eagle Property, McFaulds Lake Area, James Bay Lowlands, Ontario, 108p.

Publication Number: NI 43-101 Date: 2008

Author: T. Armstrong, E. Puritch, A. Yassa, J.L. Pearson, A. Hayden and A. Partsch

Publisher Name:

Location: Timmins RGO library


Publication - Technical report,preliminary economic assessment McFaulds Lake Property, Eagle's Nest Project, James Bay Lowlands, Ontario, 136p.

Publication Number: NI 43-101 Date: 2010

Author: S. Baker, H. Burgess, R. Gowans, G. Greenough, C. Jacobs, C. Murahwi and P.

Publisher Name:

Location: Timmins RGO


Map - Precambrian Geology of the Hudson Bay and James Bay Lowlands Region Interpreted from Aeromagnetic Data-South Sheet

Publication Number: P3599-REV Scale: 1:500,000    Date: 2009

Author: Stott G.M.

Publisher Name: Ontario Geological Survey

Location:


Mono - Mineral Deposits of Northern Ontario, North of Latitude 49° 30'

Publication Number: OFR6242 Date: 2009

Author: Stott G.M., Josey S.D.

Publisher Name: Ontario Geological Survey

Location:


Publication - Feasibility study on the Eagle's Nest Deposit, McFaulds Lake Area, James Bay Lowlands, Ontario.

Publication Number: NI 43-101 FS Date: 2012

Author: R. Gowans (2012)

Publisher Name:

Location: SEDAR


Publication - Feasibility study on the Eagle's Nest Deposit, McFaulds Lake Area, James Bay Lowlands, Ontario, 210 p.

Publication Number: NI 43-101 Date: 2012

Author: H. Burgess, R. Gowans , C. Jacobs, C. Murahwi, B. Damjanovic

Publisher Name:

Location:


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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office