Ontario Geological Survey
Permanent Link to this Record:
MDI000000002468
| Record Name(s) | Escape Lake - 2008 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 2020-Dec-17 |
| Date Last Modified | 2023-May-04 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Nickel, Platinum, Palladium
Secondary Commodities: Gold
Township or Area: Greenwich Lake Area, Tartan Lake Area
Latitude: 48° 45' 8.11" Longitude: -88° 58' 20.7"
UTM Zone: 16 Easting: 355022 Northing: 5401791.99 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A15SW
Point Location Description: DDH 08CL0001 from Assessment report 20000003451
Location Method: Data Compilation
2008: Kennecott Canada Exploration Inc. carried out 500 m of diamond drilling in 1 DDH and discovered the occurrence. 2010-12: Rio Tinto Exploration Canada Ltd. drilled 11 DDH totaling 6412 m. 2014: Rio signed an earn-in agreement with Panoramic Resources Ltd. 2015-16: Rio drilled 17 DDH totaling 7081.04 m and flew a HeliSAM survey. 2020: Clean Air Metals drilled 33 DDH.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.38816 | 20000003451 | 20000003451 |
| 2.56584 | 20000014461 | 20000014461 |
| 2.39354 | 20000003372 | 20000003372 |
| 68905 | 20000019518 | 20000019518 |
| 2.54503 | 20000009202 | 20000009202 |
Province: Superior
Subprovince: Quetico
Terrane: Quetico Basin
Geological Age: Archean
Dec 17, 2020 (Therese Pettigrew) - Within the project area, the main rock-types are Archean-age granitoid and metasedimentary rocks of the Quetico Terrane, and Meso-Proterozoic-age Keweenawan Supergroup mafic to ultramafic intrusive rocks and related intermediate to mafic hybrid intrusive rocks of the Mid-continent Rift (MCR). The MCR-related intrusive rocks within are considered to be part of the TBN Intrusive Complex which includes: the Current Lake, Steepledge Lake, Lone Island Lake, and 025 intrusions, all of which exhibit PGE-Cu-Ni mineralization to some extent. The Current Lake, Steepledge Lake, and Lone Island Lake intrusions appear to be connected by the diffuse East West Complex (EWC) which consists of a series of moderately-dipping hybrid sills and dykes that are confined to the Escape Lake Fault Zone which is part of the Quetico Fault system. To date significant quantities of mineralization have only been identified within the Current Lake and Steepledge Lake intrusions. The Current Lake PGE-Cu-Ni Deposit is hosted within the Current Lake Intrusion and the Escape Lake and Steepledge Lake mineralized zones are hosted by the Steepledge Lake Intrusion (Clark, 2020).
| Rock Type | Rank | Composition | Texture | Relationship | Gabbroid-Unsubdivided | 1 | Adjacent |
|---|---|---|---|---|
| Ultramafic-Unsubdivided | 2 | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore |
Dec 17, 2020 (Therese Pettigrew) - Drillhole 08CL0001 intersected minor Cu-Ni-PGE mineralization in a mafic to ultramafic intrusive host rock, with best mineralized interval: 10.9 m @ 2.35 g/t Pt+Pd+Au, 0.46% Cu, 0.24% Ni from 362.5 m including 3.0 m @ 4.95 g/t Pt+Pd+Au, 0.92% Cu, 0.39% Ni from 368.9 m. Mafic to ultramafic intrusive rocks were intersected from 170 m to 404 m. The top 99 m of the intrusive is an olivine gabbro, very altered in the top of the unit, and the lower 135 m is a peridotite with minor pyrrhotite and chalcopyrite mineralization (Tables 1-4). Best sulfide content occurs between 363.5 m and 372 m with 8.5 m containing 8% magmatic pyrrhotite and minor chalcopyrite (Assessment report 20000003451). The Escape Lake Zone was discovered by Rio in early 2008 and comprises an ~350m long, poorly drill defined, possibly tabular shaped high-grade Pt-Pd zone. This zone represents the furthest south zone of identified mineralization in the Steepledge area and is situated proximal to the east trending Escape Lake fault. The Escape Lake zone contains high-grade Pt-Pd mineralization and is hosted within a peridotite unit similar to that of mineralization in the Current Lake area. Mineralization mainly consists of finely disseminated to net textured sulphides ranging from a few percent to >25% and occurs interstitial to the gangue. DDH 11CL0005 returned 0.06 g/t Au, 0.61 g/t Pt, 0.76 g/t Pd, 0.28% Cu, and 0.19% Ni over 162.32 m including up to 0.46 g/t Au, 5.33 g/t Pt, 6.86 g/t Pd, 2.36% Cu, and 0.69% Ni over 6.75 m. DDH 11CL0008 returned 0.25 g/t Au, 2.64 g/t Pt, 3.31 g/t Pd, 1.13% Cu, and 0.41% Ni over 39.4 m including 0.62 g/t Au, 6.46 g/t Pt, 7.84 g/t Pd, 2.68% Cu, and 0.74% Ni over 8.33 m (Clark, 2020). Hole ELR20-028 intersected 83.3 m of 1.91 g/t Pd, 1.47 g/t Pt, 0.73% Cu and 0.40% Ni from 350.8-434.1m downhole. A higher-grade intercept included within this interval returned 21.7 m of 3.70 g/t Pd, 2.69 g/t Pt, 1.40% Cu and 0.89% Ni from 398.1-419.8m downhole. Hole ELR20-029 intersected 20 m of 1.43 g/t Pd, 1.17 g/t Pt, 0.48% Cu and 0.30% Ni from 363.9-383.9 m downhole located 200 m northwest of the original discovery area. Hole ELR20-032 intersected 8.9 m of 3.88 g/ Pd, 2.77 g/t Pt, 1.32% Cu and 0.70% Ni from 395.1-404.0 m downhole. This intercept was drilled on the southeastern edge of the Escape Lake deposit (Clean Air Metals Dec 7, 2020 press release).
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Escape | 2023 | Indicated Mineral Resource | 5810000 | Clean Air Metals news release May 4, 2023 | Contained metals: 218.8 koz Pt, 273.3 oz Pd, 20.8 koz Au, 620.0 koz Ag, 30.4 ktonnes Cu, 16.5 ktonnes Ni | Copper 0.52 %, Gold 0.11 g/t, Nickel 0.28 %, Palladium 1.46 g/t, Platinum 1.17 g/t, Silver 3.32 g/t |
| Escape | 2023 | Inferred Mineral Resource | 631000 | Clean Air Metals news release May 4, 2023 | Contained metals: 13.5 koz Pt, 16.2 oz Pd, 1.2 koz Au, 34.0 koz Ag, 1.8 ktonnes Cu, 1.1 ktonnes Ni | Copper 0.29 %, Gold 0.06 g/t, Nickel 0.17 %, Palladium 0.8 g/t, Platinum 0.67 g/t, Silver 1.67 g/t |
| Escape South Perimeter | 2022 | Inferred Mineral Resource | 649938 | 2022 NI 43-101 | 12,913 oz Pt, 10,507 oz Pd, 1647 oz Au, 19,252 oz Ag, 41 oz Rh, 115 t Co, 2306 t Cu, 1242 t Ni contained | Cobalt 176.3 g/t, Copper 0.35 %, Gold 0.08 g/t, Nickel 0.19 %, Palladium 0.5 g/t, Platinum 0.62 g/t, Silver 0.92 g/t |
| Escape South Perimeter | 2022 | Indicated Mineral Resource | 1672990 | 2022 NI 43-101 | 31,966 oz Pt, 26,451 oz Pd, 4382 oz Au, 76,875 oz Ag, 2129 oz Rh, 294 t Co, 6027 t Cu, 3425 t Ni contained | Cobalt 176.82 g/t, Copper 0.37 %, Gold 0.08 g/t, Nickel 0.21 %, Palladium 0.51 g/t, Platinum 0.62 g/t, Rhodium 0.04 g/t, Silver 1.47 g/t |
| Escape South HGZ | 2022 | Inferred Mineral Resource | 64784 | 2022 NI 43-101 | 1108 oz Pt, 841 oz Pd, 177 oz Au, 2975 oz Ag, 29 oz Rh, 12 t Co, 235 t Cu, 131 t Ni contained | Cobalt 186.07 g/t, Copper 0.36 %, Gold 0.09 g/t, Nickel 0.2 %, Palladium 0.4 g/t, Platinum 0.53 g/t, Rhodium 0.01 g/t, Silver 1.43 g/t |
| Escape South HGZ | 2022 | Indicated Mineral Resource | 2323948 | 2022 NI 43-101 | 124,437 oz Pt, 95,491 oz Pd, 11,754 oz Au, 247,325 oz Ag, 6090 oz Rh, 553 t Co, 15,236 t Cu, 8010 t Ni contained | Cobalt 238.05 g/t, Copper 0.66 %, Gold 0.16 g/t, Nickel 0.34 %, Palladium 1.28 g/t, Platinum 1.67 g/t, Rhodium 0.08 g/t, Silver 3.31 g/t |
| Escape Lake | 2021 | Inferred Mineral Resource | 34458179 | Clean Air Metals 2021 NI 43-101 report p. 194 | Cobalt 173 g/t, Copper 0.33 %, Gold 0.07 g/t, Nickel 0.18 %, Palladium 0.73 g/t, Platinum 0.64 g/t, Rhodium 0.00 g/t, Silver 1.13 g/t | |
| Escape Lake | 2021 | Indicated Mineral Resource | 4286220 | Clean Air Metals 2021 NI 43-101 report p. 194 | Cobalt 209 g/t, Copper 0.52 %, Gold 0.12 g/t, Nickel 0.28 %, Palladium 1.18 g/t, Platinum 0.92 g/t, Rhodium 0.06 g/t, Silver 2.45 g/t |
Publication - Technical Report on Thunder Bay North and Escape Lake Properties
Publication Number: 2020 NI 43-101 Date: 2020
Author: Clark, J.G.
Publisher Name: Clean Air Metals
Location: SEDAR
Publication - NI 43-101 Technical Report and Mineral Resource Estimate for the Thunder Bay North Project, Thunder Bay, Ontario
Publication Number: 2021 NI 43-101 Date: 2021
Author: Kuntz, G., Jones, L.
Publisher Name: Nordmin Engineering for Clean Air Metals
Location: SEDAR
Publication - NI 43-101 Technical Report and Preliminary Economic Assessment for the Thunder Bay North Project, Thunder Bay, Ontario
Publication Number: 2022 NI 43-101 Date: 2022
Author: Kuntz, G., Wissent, B., Boyko, K., Harkonen, H., Jones, L., Muir, W., Buss, B., Peacock, B.
Publisher Name: Nordmin for Clean Air Metals
Location: SEDAR
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