Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Permanent Link to this Record: MDI52N04SE00005

Deposit: MDI52N04SE00005

General

Mineral Deposit Identification
Deposit Name(s) Phoenix Deposit - 2012, McFinley Mine - 1943
Related Deposit ID MDI52N04SW00037
Related Deposit Type simple
Deposit Status developed prospect with reserves
Abandoned Mine Inventory Reference 03870
Date Created 1982-Aug-26
Date Last Modified 2019-Apr-30
Created By Q Unknown
Revised By T Pettigrew

Commodities

Primary Commodities: gold

Location

Township or Area: Bateman

Latitude: 51° 7' 29.54"    Longitude: -93° 44' 25.42"

UTM Zone: 15    Easting: 448187   Northing: 5663972    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52N04SE

Point Location Description: Shaft on KRL 246 on Map 2016

Location Method: data compilation

Source Map: SHAFT ON KRL 246 ON MAP 2016

Sources Map Scale: 1:12 000

Access Description: From Cochenour by gravel road or dedicated gravel access road leaving Nungesser Rd. at 2km north from Hwy 125.

Exploration and Mining History

1926: 8 claims were staked by McCallum Red Lake Mines Ltd. c.1930: Stripping and trenching. 1933: Part of the present property held by Wilson Red Lake Gold Mines Ltd. 1941-42: Diamond drilling. 1943-44: McFinley Red Lake Gold Mines Ltd. acquired various groups of claims from the above companies. After various re-organizations, the company became known as McFinley Mines Ltd. 1944-45: Magnetometer survey, geological mapping, trenching. 1944-46: Diamond drilling totalling 14822.1 m. 1957: Shaft completed to a depth of 129.0 m, with levels at 45.75 m, 84.0 m and 122.0 m. Total of 428.4 m of underground development and 894.2 m of underground diamond drilling. 1975: Magnetometer and EM surveys, 25 drill holes totalling 2578.65 m. 1981: Bulk sampling. 1983: Diamond drilling by McFinley Mines seven DDH for a total of 646 m. 1984-1985 An agreement with Phoenix Gold Mines Ltd. allowed the reopening of the McFinley Shaft (now called the Phoenix Shaft) and completion of a total of 479m (1,570 ft) of drifting and crosscutting on the 150 ft (46 m) and 400 ft (122 m) levels. Metallurgical work and mineral processing were carried out. 80 underground drillholes totalling 1,829 m and 69 surface holes totalling 10,628 m of diamond drilling were completed. 1985-1987: A total of 1,151 m of drifting and crosscutting was carried out on the 150 and 400 levels. 7,111 m of underground drilling, 9.14 m of raising and an extensive chip-sampling program were completed. A program of 12,763 m of diamond drilling was also completed in 61 surface holes. 1987-1989 A 15,000 ton bulk sample was taken in July 1988. 2002: Rubicon acquired the property and conducted geological mapping, compilation of historical data, airborne magnetic survey, trenching, sampling, bathymetric survey of Red Lake, and drilled 14 DDH totalling 1909 m. 2003: Rubicon drilled 43 DDH totalling 12,646 m. 2004: Rubicon conducted trenching and sampling and drilled 70 holes totalling 13,324 m. 2005: Rubicon drilled 61 DDH totalling 13,601 m. 2006: Rubicon drilled 11 DDH totalling 1614 m. 2007: Rubicon drilled 24 DDH totalling 13,444 m. 2008: Rubicon conducted geophysical surveys and drilled 62 DDH totalling 43,766 m. 2009: Rubicon commissioned a petrographic study and drilled 69 DDH totalling 44,675 m surface and 42 holes totalling 25,512 m underground. 2010: Rubicon conducted an airborne LiDAR survey and drilled 49 DDH totalling 37,823 m surface and 199 holes 82,068 m underground. 2011: Rubicon drilled 6 DDH totalling 5,462 m surface and 296 holes totalling 74,337 m underground. 2012: Rubicon drilled 90 DDH totalling 40,900 m and 36 holes totalling 17,627 m underground. 2013: mineral resource estimate released. 2015: production began, first gold poured in June. Mill operations suspended in October, as ordered by the Ministry of Environment to upgrade their tailings management facility. MOE gave Rubicon permission to resume mill operations on Oct 30/15. Underground activities suspended in November because trial stoping had lower-grade results and more complex geology than expected. 2016: released updated, significantly reduced mineral resource. 2017: completed 10,000 m of historical core relogging, 28,500 m of underground drilling and recommenced exploratory underground development. 2018: Rubicon carried out a bulk sample, test trial mining of more than 35,000 t of mineralized material and conducted approximately 20,000 m of infill drilling from the 305-, 610-, and 685-m levels.

Assessment Work on File

Assessment Work on File
Office File Number   Online Assessment File Identifier   Online Assessment File Directory  
52N04NE0085     20000006233     Open
63.4282     52N04NE0028     Open
63.3374     52N04NE0072     Open
63.4496     52N04NE0032     Open
63.3868     52N04NE0059     Open
63.3994     52N04NE0036     Open
63.4868     52N04NE0026     Open
2.47665     20000008054     Open
2.49832     20000014766     Open
2.49071     20000014765     Open
2.48339     20000014764     Open
2.44875     20000013659     Open
2.43946     20000013658     Open

Geology

Province: Superior

Subprovince: Uchi

Belt: Red Lake

Intrusion: East Bay Serpentinite

Metamorphism Type: regional

Metamorphism Grade: greenschist

Structure
Structure Name Scale Strike Dip Trend Plunge
Shear Zone local 210 65

Geology Comments

02/02/1997 (K R Kettles) - GEOLOGICAL DDESCRIPTION: The McFinley property is primarily underlain by highly altered mafic metavolcanic flows. These rocks strike at approximately N30deg.E and dip 65 deg. to 75deg. northwest. Pillows have been observed in the flows, and stratigraphic tops are to the northwest. The rocks have been moderately to intensely sheared, and the foliation is parallel to sub-parallel to the stratigraphy. Where highly sheared, the mafic metavolcanic rocks have been silicified, carbonatized and are biotitic. Thin bands of iron formation are found intercalated within the volcanics. Locally, the iron formation bands are folded and brecciated, and contain quartz stringers and disseminated to massive sulphide layers. A long narrow unit of talc-schist has been intersected by drilling to the southeast of McFinley Peninsula. This altered ultrmafic unit is continuous to the north end of McFinley Island, and is northwest of the parallel to the East Bay Serpentinite. DEPOSIT DESCRIPTION: A wide shear zone containing blue quartz veins and quartz-carbonate stringers occurs on the hanging wall side of the East Bay Fault Zone. In places, up to 50% of the vein material is comprised of arsenopyrite, pyrite pyrrhotite, sphalerite and galena. Anomalous gold values have been obtained along a strike length of approximately 300 m.

Mineral Deposit Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
mafic metavolcanics 1 basalt near
ironstone 2 iron forma contains
vein 3 quartz-carbonate stringers and veins host
epiclastic 4 greywacke adjacent
ultramafic intrusive 5 serpentinite east bay serpentinite near

Lithology Comments

02/02/1997 (K R Kettles) - DESCRIPTION: The McFinley property is primarily underlain by highly altered mafic metavolcanic flows. These rocks strike at approximately N30deg.E and dip 65 deg. to 75deg. northwest. Pillows have been observed in the flows, and stratigraphic tops are to the northwest. The rocks have been moderately to intensely sheared, and the foliation is parallel to sub-parallel to the stratigraphy. Where highly sheared, the mafic metavolcanic rocks have been silicified, carbonatized and are biotitic. Thin bands of iron formation are found intercalated within the volcanics. Locally, the iron formation bands are folded and brecciated, and contain quartz stringers and disseminated to massive sulphide layers. A long narrow unit of talc-schist has been intersected by drilling to the southeast of McFinley Peninsula. This altered ultrmafic unit is continuous to the north end of McFinley Island, and is northwest of the parallel to the East Bay Serpentinite. A wide shear zone containing blue quartz veins and quartz-carbonate stringers occurs on the hanging wall side of the East Bay Fault Zone. In places, up to 50% of the vein material is comprised of arsenopyrite, pyrite pyrrhotite, sphalerite and galena. Anomalous gold values have been obtained along a strike length of approximately 300 m.

Mineralization

Deposit Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Habit Description
1 gold economic ore
2 silver economic ore
3 arsenopyrite economic ore
4 chalcopyrite economic ore
5 galena economic ore
6 magnetite economic ore
7 pyrite economic ore
8 pyrrhotite economic ore
9 sphalerite economic ore
1 quartz economic gangue
2 carbonate economic gangue

Mineralization Comments

02/02/1997 (K R Kettles) - MDI1 DATA: DRILL IND. RESERVES 1987: 890,000 TONS @ OPT AU, PROSPECT INCLUDES ZONES: ISLAND,CARBONATE A AND B, D, N1 ANOMALY Five holes were drilled through the zone in 1975. Most of the assays obtained were less than 0.1 oz/ton (3.429 g/tonne)Au. The highest assays were 0.225 oz/ton (7.714 g/tonne)Au over 0.6 m, 0.60 oz/ton (20.571 g/tonne)Au over 0.95 m, and 0.12 oz/ton (4.114 g/tonne)Au over 3.05 m. Silver assays, while generally less than 1.0 oz/ton (34.285 g/tonne)Ag were as high as 8.30 oz/ton (284.566 g/tonne)Ag over 0.3 m and 4.73 oz/ton (162.168 g/tonne)Ag over 0.55 m.

08/14/2015 (T Pettigrew) - Two 1000 tonne bulk samples taken in 2011 returned head grades of 7.10 gpt Au and 8.20 gpt Au (Bernier et al., 2014).

Alteration Comments

02/02/1997 (K R Kettles) - The mafic metavolcanic rocks have been highly silicified, carbonatized and are biotitic.

Mineral Deposit Details

Deposit Classification
Rank Classification            
1 lode (gold)
1 vein
Deposit Characteristics
Rank Characteristic            
1 sheared
Production Data
Year Tonnes Commodities Commodity Production Reference Comment
2015 20718 Gold 2647 Ounces Rubicon 3rd Quarter Financial Statement - Http://s1.q4cdn.com/385694504/files/h2%202015/rubicon-q3-2015-combined-fs-mda-september-30-2015.pdf 2647 oz Au, average milled grade 5.03 g/t Au
Ore Reserves Data
Zone Year Category Tonnes Reference Comments Commodities
Fwc-3 Zone 2002 inferred mineral resource 3500 OFR 6180, Table 14 (Hogg, 2002) Grade: 17.14 g/t Au (3875tons of 0.50 opt Au), Included in total resource.
C Zone 2002 inferred mineral resource 9550 OFR 6180, Table 14 Grade: 29.8 g/t Au (10 520 tons of 0.87 opt Au), Included in total resource.
Fwc-1+2 2002 inferred mineral resource 27760 OFR 6180, Table 14 Grade: 8.23 g/t Au (30 600 tons of 0.24 opt Au), Included in total resource.
C-2 Zone 2002 inferred mineral resource 116750 OFR 6180, Table 14 (Hogg 2002) Grade: 3.77 g/t Au (128 700 tons of 0.11 opt Au), Included in total resource estimate
C-3 Zone 2002 inferred mineral resource 33170 OFR 6180, Table 14 (Hogg 2002) Grade: 6.51 g/t Au (36 562 tons of 0.19 opt Au)
Wl Zone 2002 inferred mineral resource 9525 OFR 6180, Table 14 (Hogg 2002) Grade: 16.8 g/t Au (10 500 tons of .49 opt Au), Included in total resource estimate
403 Zone 2002 inferred mineral resource 4550 OFR 6180, Table 14 (Hogg 2002) Grade: 27.4 g/t Au (5000 tons of 0.80 opt Au), Included in total resource estimate
Bx Zone 2002 inferred mineral resource 1800 OFR 6180, Table 14 (Hogg 2002) Grade: 28.8 g/t Au (2000 tons of 0.84 opt Au), Included in total resource estimate
All Zones 2002 inferred mineral resource 807400 OFR 6180, Table 14 (Canadian Mines Handbook, 1987-88, p. 262) Grade: 6.51 g/t Au to a depth of 500 m (890 000 tons of 0.19 opt Au to a depth of 1700 feet)
Combined: Fwc-1 Through 3, C, C2, C3, D, Bx, Wl 2002 inferred mineral resource 303000 OFR 6180, Table 14 (Hogg, 2002) Average grade: 6.86 g/t Au to a depth of 120 m (334 007 tons of 0.20 opt Au to a depth of 400 feet. Resource estimates on individual zones also entered separately. (Note D-Zone under MDI52N04SE00078)
F2 Gold System 2010 inferred mineral resource 6200000 Rubicon press release Nov 29, 2010 (http://www.rubiconminerals.com/News/News/Details/2010/Rubicon-Announces-40-Million-Ounce-Inferred-Gold-Resource-Estimate-Grading-201-gt-gold-059-ozton-gold-at-its-Phoenix-Gold-Pro/default.aspx) At a grade of 20.1 g/t Au for 4,007,000 oz Au Gold 20.1 Grams per Tonne
F2 Gold System 2011 indicated mineral resource 1028000 SEDAR NI 43-101 Aug 11, 2011 At a grade of 14.5 g/t Au for 477,000 oz Au Gold 14.5 Grams per Tonne
F2 Gold System 2011 inferred mineral resource 4230000 SEDAR NI 43-101 Aug 11, 2011 At a grade of 17.0 g/t Au for 2,317,000 oz Au Gold 17.0 Grams per Tonne
F2 Gold System (amended From 2010) 2011 inferred mineral resource 5500000 Rubicon press release Mar 31, 2011 (http://www.rubiconminerals.com/News/News/Details/2011/Rubicon-Announces-Amended-Inferred-Mineral-Resource-and-Geological-Potential-Estimates-for-Phoenix-Gold-Project-Red-Lake-Onta/default.aspx) At a grade of 20.34 g/t Au for 3,057,000 oz Au Gold 20.34 Grams per Tonne
Phoenix Deposit 2013 inferred mineral resource 7452000 SEDAR http://www.sedar.com/DisplayCompanyDocuments.do?lang=EN&issuerNo=00009365; NI43-101 published June 25, 2013 2,219,000 oz Au at a grade of 9.26 g/t Au Gold 9.26 Grams per Tonne
Phoenix Deposit 2013 indicated mineral resource 4120000 SEDAR NI43-101 Report June 25, 2013 http://www.sedar.com/DisplayCompanyDocuments.do?lang=EN&issuerNo=00009365 1,129,000 oz Au at a grade of 8.52 g/t Au Gold 8.52 Grams per Tonne
Phoenix Deposit 2016 indicated mineral resource 492000 Rubicon press release January 6, 2016 (http://www.rubiconminerals.com/News/News/Details/2016/Rubicon-Updates-Mineral-Resource-Statement-for-the-Phoenix-Gold-Project-And-Evaluates-Strategic-Alternatives/default.aspx) At a grade of 6.73 g/t Au for 106,000 oz Au Gold 6.73 Grams per Tonne
Phoenix Deposit 2016 inferred mineral resource 1519000 Rubicon press release January 6, 2016 (http://www.rubiconminerals.com/News/News/Details/2016/Rubicon-Updates-Mineral-Resource-Statement-for-the-Phoenix-Gold-Project-And-Evaluates-Strategic-Alternatives/default.aspx) At a grade of 6.28 g/t Au for 307,000 oz Au Gold 6.28 Grams per Tonne
Phoenix Deposit 2018 measured mineral resource 188000 SEDAR NI43-101 Report published June 13, 2018 (https://sedar.com/DisplayCompanyDocuments.do?lang=EN&issuerNo=00009365) At a grade of 6.80 g/t Au for 41,000 oz Au Gold 6.80 Grams per Tonne
Phoenix Deposit 2018 indicated mineral resource 1186000 SEDAR NI43-101 Report published June 13, 2018 (https://sedar.com/DisplayCompanyDocuments.do?lang=EN&issuerNo=00009365) At a grade of 6.30 g/t Au for 240,000 oz Au Gold 6.30 Grams per Tonne
Phoenix Deposit 2018 inferred mineral resource 3884000 SEDAR NI43-101 Report published June 13, 2018 (https://sedar.com/DisplayCompanyDocuments.do?lang=EN&issuerNo=00009365) At a grade of 6.00 g/t Au for 749,000 oz Au Gold 6.00 Grams per Tonne
Phoenix Deposit 2019 inferred mineral resource 2570000 Rubicon Minerals March 27, 2019 press release At a grade of 6.99 g/t Au for 99,000 oz Au Gold 6.53 Grams per Tonne
Phoenix Deposit 2019 measured mineral resource 442000 Rubicon Minerals March 27, 2019 press release At a grade of 6.99 g/t Au for 99,000 oz Au Gold 6.99 Grams per Tonne
Phoenix Deposit 2019 indicated mineral resource 2485000 Rubicon Minerals March 27, 2019 press release At a grade of 6.13 g/t Au for 490,000 oz Au Gold 6.13 Grams per Tonne

References

Publication - Preliminary Economic Assessment for the F2 Gold System, Phoenix Gold Project, Red Lake, Ontario

Publication Number: 2014 43-101    Date: 2014

Author: Bernier, S., Cole, G., Hewitt, D., Taylor, S., Roy, P.

Publisher Name: SRK for Rubicon Minerals Corp.

Reference Location: SEDAR


Publication - Technical Report for the Phoenix Gold Project, Red Lake, Ontario

Publication Number: 2016 43-101    Date: 2016

Author: Bernier, S., Cole, G., Ravenelle, J-F., O’Flaherty, M., Frostiak, J.W.

Publisher Name: SRK for Rubicon Minerals Corp.

Reference Location: SEDAR


Book - Geology of the South Half of Bateman Township, District of Kenora, p. 25-28

Publication Number: R006    Date: 1962

Author: Ferguson, S.A.

Publisher Name: OGS


Book - Gold Deposits of Ontario, p. 199-200

Publication Number: MDC013    Date: 1971

Author: Ferguson, S.A., Groen, H.A., Haynes, R.

Publisher Name: OGS


Publication - National Instrument 43-101 Technical Report for the Rubicon Phoenix Gold Project

Publication Number: 2018 43-101    Date: 2018

Author: Thomas, B., Maunula, T., Frostiak, J. and Willett, M.

Publisher Name: Golder Associates Ltd. for Rubicon Minerals Corp.

Reference Location: SEDAR


Book - Gold Occurrences, Prospects, and Deposits of the Red Lake Area, p. 323-332

Publication Number: OFR5558     Date: 1987

Author: Durocher, M.E., Burchell, P.S., Andrews, A.J. et al

Publisher Name: OGS


Book - RESIDENT GEOLOGIST'S FILE, RED LAKE

Publication Number: RGF 1974    Date: 1974

Author: Bacon, W.R.

Reference Location: Red Lake RGP


Book - RESIDENT GEOLOGIST'S FILES, RED LAKE

Publication Number: RGF 1980    Date: 1980

Author: Seeber, O.A.

Reference Location: Red Lake RGP


Map - Bateman Township, Southern Part, District of Kenora, Ontario

Publication Number: M2016    Scale: 1:12 000    Date: 1962

Author: Ferguson, S.A.

Publisher Name: OGS


Map - Precambrian Geology, Red Lake

Publication Number: P3227    Scale: 1:50 000    Date: 1993

Author: Atkinson, B.T., Stone, D.

Publisher Name: OGS


Map - Geological Series, Bateman Township, District of Kenora (Patricia Portion)

Publication Number: P1569    Scale: 1:10 000    Date: 1978

Author: Pirie, J., Grant, A.

Publisher Name: OGS


Book - Canadian Mines Handbook 1989-90 p. 308-309

Publication Number: CMH 1989    Date: 1989

Reference Location: Red Lake RGP


Book - NMI FILE, 52N/04 AU 8

Publication Number: NMI FILE    Date: 1987

Reference Location: Red Lake RGP


Map - Red Lake Area (East Sheet), District of Kenora (Patricia Portion), Ontario

Publication Number: ARM49B    Scale: 1:31 680    Date: 1940

Author: Horwood, H.C.

Publisher Name: OGS


Map - Red Lake Gold Area, District of Kenora, Ontario (Patricia Portion)

Publication Number: ARM36D    Scale: 1:63 360    Date: 1927

Author: Bruce, E.L., Hawley, J.E.

Publisher Name: OGS


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