Ontario Geological Survey
Permanent Link to this Record:
MDI42B01NE00009
| Record Name(s) | Penhorwood Mine - 1987, Steetley Talc - 1978, Manville Property - 1974 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Producing Mine |
| Date Created | 1992-Jun-15 |
| Date Last Modified | 2023-Dec-12 |
| Created By | |
| Revised By |
Primary Commodities: Soapstone, Talc
Secondary Commodities: Magnesium Minerals
Township or Area: Reeves
Latitude: 48° 11' 26.34" Longitude: -82° 5' 54.63"
UTM Zone: 17 Easting: 418359.08 Northing: 5338073.82 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42B01NE
Point Location Description: Occurrence 28 map 2627
Location Method: Field Visit with GPS
Access Description: The mine is located in north-central Penhorwood Township, Swayze area on patent claim S. 82791. It is approximately 65 km southwest of Timmins. The property is accessible by following Highway 101 west from Timmins for 70 km to the Reeves Mine/Luzenac turnoff. Travel south for 3 km to the Luzenac Mill. A pass from Luzenac is required for access.
1957 During the course of exploration for asbestos Canadian Johns Manville noted the occurrence of a zone of extensive talc carbonate alteration in a number of diamond drill holes in the vicinity of the present Penhorwood mine. Due to its extent, this alteration was note worthy compared to numerous other occurrences found elsewhere in the area but not specifically recorded in other reports. Subsequently, other occurrences were inferred from magnetic surveys in the sixties but were not the target of exploration and were not pursued. 1973 Johns Manville started to develop the talc deposit. 1976 Johns Manville started production at the mine but this was terminated within a few months. 1978 Steetley Talc began mining the deposit. 1988 Talc de Luzenac carried out an exploration program prior to the purchase of the mine from Steetley Talc. 1992 Over the next two years, two additional exploration programs were carried out at the mine site.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-1985 / 2.3517 | 42B01NE0047 | 42B01NE0047 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Tectonic Assemblage: Muskego-Reeves
Geological Age: Neoarchean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (S Fumerton) - A number of intense zones of talc - carbonate alteration occur along a northeast trending line just east of parallel shear zone inferred from geophysical data. There are several generations of fractures that cut the deposit all of which have varying amounts of recrystallized magnesite and talc along the fracture plane which may or may not be subsequently sheared. These fractures include:- 1) diamond shaped fracture sets with near vertical obtuse bisectrix, 2) undulating near horizontal shears associated with a brown stain, 3) near vertical shears/fractures which may be associated with secondary alteration on chemical fronts which have moved away from, but parallel to, the initial fracture and resulting in a discordant dyke like feature.
Dec 07, 2005 (A Wilson) - The open pit is located near the western margin of an extensive north-trending, cumulate-textured serpentinite body cut by east-trending deformation zones. The ultramafic unit also hosts the Reeves Mine. The western margin of the ultramafic unit is highly deformed and may be the locus of a sheared contact with a unit of clastic metasedimentary rocks to the west.
Dec 07, 2005 (R Degagne) - The property is underlain by metavolcanic rocks which have been intruded by diorite, peridotite and gabbro. Talc- magnesite ore occurs in contact with highly altered ultramafic sills and plugs. Alteration is in the form of serpentine and carbonate (Vos et al 1987).
| Rock Type | Rank | Composition | Texture | Relationship | Peridotite | 1 | Peridotite, Gabbro | Altered | Host |
|---|---|---|---|---|
| Ultramafic lava flow-unsubdivided | 2 | Komatiite | Altered | Host |
| Amphibolite | 4 | Amphibolite | Near |
Feb 29, 2016 (S Fumerton) - The deposit is located in ultramafic rocks which may be part of an intrusive plug or a thick sequence of komatiitic flows in the nose of a fold. Elsewhere these flows or lenses are conformable with some Mg tholeiitic flows in a thick sequence of mafic metavolcanics. Originally these ultramafic rocks were divided into early and late ultramafic intrusives by Milne 1972 but the occurrence of compositionally controlled spinifex texture (Pine needle or chicken track texture) was noted in settings now regarded as characteristic of layered komatiite flows. The ultramafic rocks are cut by a number of large east trending faults and prior to the discovery of the talc deposit, it was noted that carbonate alteration of the serpentinized ultramafic was associated with talcose shears. XRD work suggests that the talc occurs in the form of Willemseite and there is some magnesian gaspeite mixed in with the magnesite. Few details are available on the specific setting of the deposit.
Dec 07, 2005 (R Degagne) - The property is underlain by metavolcanic rocks which have been intruded by diorite, peridotite and gabbro. Talc- magnesite ore occurs in contact with highly altered ultramafic sills and plugs. Alteration is in the form of serpentine and carbonate (Vos et al 1987).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Talc | Economic | Ore | ||||
| 2 | Magnesite | Economic | Ore | ||||
| 1 | Magnetite | Economic | Gangue | ||||
| 2 | Carbonate | Economic | Gangue | ||||
| Talc | Alteration | Steatization | 1 | Strong | Replacement | ||
| Magnesite | Alteration | Steatization | 2 | Strong | Replacement | ||
| Serpentine | Alteration | Steatization | 3 | Weak | Disseminated |
Dec 07, 2005 (S Fumerton) - The ore is a massive, medium grained (<2mm), light cold grey rock. This is made up of vitreous talc grains with more translucent carbonate grains together with disseminated grains of ilmenite and or magnetite. Locally a subtle nodular appearance is apparent on the fresh surfaces and is thought to represent varying degrees of alteration. Based on the weathered surfaces, there appears to be a variable iron to calcium ratio in the deposit from material that turns a pale chocolate brown on weathering to material that disintegrates into a light grey to off-white pile of rubble. Chemical analyses indicate that CaO varies between 0.3% and 4.5% whereas Fe2O3 varies between 5% and 8.5% The massive material is cut by a number of recrystallized magnesite and talc veins related to various fracture directions. In these veins, the magnesite is white to pale brown and coarse grained, the talc is also coarse grained and a pale sea green with characteristic crystal growths oblique to the contact. Adjacent to these veins there is an increased concentration of ilmenite and magnetite/hematite. Ilmenite, magnetite, and hematite also occur in thin discontinuous trails orientated in a number of directions. On the east side of the pit associated with secondary alteration emanating from fractures there are thin seams of white asbestos fibres <5mm long parallel to the initial fracture. These asbestos seams are locally associated with thin quartz veins.
Dec 07, 2005 (R Degagne) - The soapstone is pale grey to olive green in colour and has a mottled appearance. It is locally fractured with magnesite occurring within the fractures (Resident Geologist's Files Ministry of Northern Development and Mines, Timmins).
| Rank | Classification |
|---|---|
| 1 | Replacement |
| Rank | Characteristic |
|---|---|
| 1 | Unknown |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 500 | N/A | N/A |
Date: Jun 15, 1992
Geologist: S Fumerton
Notes: In the company of Marc Leroux of the MNDM and Mr Karl Habla, on site supervisor for Luzenac, a tour was made of the open pit and mill at the Penhorwood Mine. Mining is carried out in the winter in order to get a more favourable rate from contractors. Open pit mining with approximately 10m benches is carried out using a 25 foot drill hole pattern. These holes are drilled with rotary percussion equipment and the returns are sampled mineralogically and geochemically for grade control. The main concern in mining is the occurrence of small serpentinite lenses which must be sorted from the mill feed. Material from the mine is crushed to minus 10cm and stored on a pile near the mill until spring. In spring the broken ore is passed through a two stage roller crusher then fed into a ball mill as a slurry in order to grind the rock to -325 mesh. After this the ore is processed through four floatation cells to purify the talc. The material is then passed over a magnetic drum in order to remove magnetite and ilmenite then dried in the final dryers. The dry powder is transported to the mill in Timmins for final crushing, sieving and packaging. The Penhorwood mill has a daily capacity of 450 tons per day in order to produce 170 to 200 tons. This is done with 11 men working three shifts 24 hrs per day, 6 days per week. Half a day per week is devoted to maintenance.
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Penhorwood Mine | 2013 | Indicated Mineral Resource | 9000 | OFR 6294, ROA 2013, PG. 11 | Talc 45 Percent | |
| Penhorwood Mine | 2013 | Proven | 5742000 | OFR 6294, ROA 2013, PG. 11 | Talc 45 Percent | |
| Penhorwood Mine | 2013 | Probable Mineral Reserve | 701000 | OFR 6294, ROA 2013, PG. 11 | Talc 45 Percent | |
| Penhorwood Mine | 2012 | Proven + Probable Reserve | 719000 | OFR 6286, ROA 2012, PG. 8 | Imerys reports proven and probable category as product sold, so no grade is reported. | Talc Null Percent |
| Penhorwood Mine | 2012 | Proven | 5886000 | OFR 6286, ROA 2012, PG. 8 | Talc Null Percent | |
| Penhorwood Mine | 2011 | Probable Mineral Reserve | 907638 | OFR 6274, ROA 2011, PG. 9 | Grade reported on basis sold, no grade reported | Talc Null Percent |
| Penhorwood Mine | 2011 | Proven | 6664000 | OFR 6274, ROA 2011, PG. 9 | Grade reported on basis sold, no grade reported | Talc Null Percent |
| Penhorwood Mine | 2010 | Proven | 7400000 | OFR 6264, ROA 2010, PG. 11 | Grade reported on basis sold, no grade reported | Talc Null Percent |
| Penhorwood Mine | 2010 | Probable Mineral Reserve | 800000 | OFR 6264, ROA 2010, PG. 11 | Grade reported on basis sold, no grade reported | Talc Null Percent |
| Penhorwood Mine | 2009 | Probable Mineral Reserve | 800000 | OFR 6264, ROA 2010, PG. 11 | Grade reported on basis sold, no grade reported | Talc Null Percent |
| Penhorwood Mine | 2009 | Proven + Probable Reserve | 7400000 | OFR 6247, ROA 2010, PG. 15 | Imerys reports proven and probable category as product sold, so no grade is reported. | Talc Null Percent |
| Penhorwood Mine | 2008 | Probable Mineral Reserve | 460000 | OFR 6235, ROA 2008, PG. 17 | Talc 45 Percent | |
| Penhorwood Mine | 2008 | Proven | 7270000 | OFR 6235, ROA 2008, PG. 17 | Talc 45 Percent | |
| Penhorwood Mine | 2007 | Proven | 7330000 | OFR 6219, ROA 2007, PG. 16 | Talc 45 Percent | |
| Penhorwood Mine | 2007 | Probable Mineral Reserve | 460000 | OFR 6219, ROA 2007, PG. 15 | Talc 45 Percent | |
| Penhorwood Mine | 2006 | Proven | 7000000 | OFR 6203, ROA 2006, PG. 15 | Talc 45 Percent | |
| Penhorwood Mine | 2006 | Probable Mineral Reserve | 24000000 | OFR 6203, ROA 2006, PG. 15 | Talc 30 Percent | |
| Penhorwood Mine | 2005 | Probable Mineral Reserve | 8200000 | OFR 6183, ROA 2005, PG. 14 | Talc 47.2 Percent | |
| Penhorwood Mine | 2005 | Proven | 7660000 | OFR 6183, ROA 2005, PG. 14 | Talc 47.2 Percent | |
| Penhorwood Mine | 2004 | Probable Mineral Reserve | 8200000 | OFR 6149, ROA 2004, PG. 14 | Talc 47.2 Percent | |
| Penhorwood Mine | 2004 | Proven | 7860000 | OFR 6149, ROA 2004, PG. 14 | Talc 47.2 Percent | |
| PENHORWOOD MINE | 2003 | Measured + Indicated Resource | 34859017 | OFR 6130, ROA 2003, PG. 15 | MEASURED RESOURCE, ALSO 5,360,344 TONNES INDICATED, 22% RECOVERABLE GRADE | Talc 22 Percent |
| PENHORWOOD MINE | 2002 | Proven | 7030682 | OFR 6113 ROA 2002, PG. 16 | 7,750,000 TONS GRADING 48.6% TALC | Talc 48.6 Percent |
| PENHORWOOD MINE | 2002 | Probable Mineral Reserve | 1197484 | OFR6113, ROA 2002, PG. 16 | 1,320,000 TONS GRADING 48.6% TALC | Talc 48.6 Percent |
| PENHORWOOD | 1997 | Proven | 7000000 | OFR 5872, P. 9 | Talc 50 Percent | |
| PENHORWOOD | 1993 | Probable | 8200000 | MIXTURE OF PROVEN AND PROBABLE RESERVES, GRADE IS VARIABLE WITHIN THE DEPOSIT | Mr Renaud 1992 and 1993 personal communication. The figures are a mixture o | Talc 50 Percent |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 2022 | 310000 |
Talc 80000 Tonnes |
OFR6402, p.7 | Ore grade: 45.7% talc |
| 2021 | 330000 |
Talc 95000 Tonnes |
OFR6384, p.7 | Ore grade: 45.7% talc |
| 2020 | 330000 |
Talc 83200 Tonnes |
OFR6374, p.7 | Ore grade: 45.7% talc |
| 2019 | 330000 |
Talc 83200 Tonne |
OFR6366, p.8 | Ore grade: 45.7% talc |
| 2018 | 347000 |
Talc 92600 Tonne |
OFR6354, p.9 | Grade: 45.7% talc |
| 2017 | 357000 |
Talc 94200 Tonne |
OFR6339, p.8 | Grade: 45.7% talc |
| 2016 | 298825 |
Talc 88551 Tons |
OFR6327, p.7 | Grade of 29.6% talc |
| 2015 | 330889 |
Talc 97385 Tons |
OFR6327, p.7 | Grade of 29.4% Talc |
| 2013 | 241610 |
Talc 74245 Tonne |
OFR 6294, ROA 2013, PG. 11 | 30.5% Recovery |
| 2012 | 201480 |
Talc 66477 Tonne |
OFR 6130, ROA 2012, PG. 15 | 58% RECOVERY |
| 2011 | 65000 |
Talc 65000 Tonne |
OFR 6274, ROA 2011, PG. 9 | |
| 2010 | 176580 |
Talc 55000 Tonne |
OFR 6264, ROA 2010, PG. 9 | Ore grade of 46.1% |
| 2009 | 136000 |
Talc 113479 Tonne |
OFR 6247, ROA 2009, PG. 15 | 45% grade, 26% RECOVERY |
| 2008 | 162000 |
Talc 162000 Tonne |
OFR 6235, ROA 2008, PG. 17 | 45% Grade, 26% Recovery |
| 2007 | 210000 |
Talc 54600 Tonne |
OFR 6219, ROA 2007, PG. 16 | Grade 45%, 26% RECOVERY |
| 2006 | 200000 |
Talc 100815 Tonne |
OFR 6203, ROA 2006, PG. 15 | 61% RECOVERY |
| 2005 | 215665 |
Talc 100815 Tonne |
OFR 6183, ROA 2005, PG. 14 | 47.2% Grade, 62% Mill Recovery |
| 2004 | 192400 |
Talc 57150 Tonne |
OFR 6149, ROA 2003, PG. 15 | 47.2% grade, 62% Mill recovery |
| 2003 | 201480 |
Talc 57150000 |
OFR 6130, ROA 2003, PG. 15 | 61% RECOVERY |
| 2002 | 173383 |
Talc 51324884 |
OFR 6113, ROA 2002, | 191,122 TONS GRADING 48.6% TALC, 56576 TONS TALC, 61% RECOVERY |
| 2001 | 287818 |
Talc 75983979 |
OFR 6082, ROA 2001, PG 14 | 317,265 TONS GRADING 48% TALC, 83,758TONS TALC, RECOVERY = 55 % |
| 2000 | 200216 |
Talc 54741342 |
OFR 6050, ROA 2000, PAGE 16 | 60342 TONS TALC FROM 220018 TONS MILLED, GRADE WAS 46.9% TALC, 58.5% RECOVERY |
| 1999 | 162479 |
Talc 51620928 |
OFR 6006 P. 14 | 162 479 TONNES @ 31.3% TALC |
| 1998 | 110142 |
Talc 39250112 |
OFR 5990 P. 15 | 110 142 TONS @ 35% |
| 1997 | 107000 |
Talc 37500 |
OFR 5972 P. 8-9 | |
| 1996 | 80000 |
Talc 36000 |
OFR 5958, P. 8-5 | |
| 1995 | 55000 |
Talc 32000 |
OFR 5943, P.222 | |
| 1994 | 1 |
Talc 34800 |
||
| 1993 | 62446 |
Talc 25527000 |
||
| 1992 | 108862 |
Talc 27036 |
MP161 ROA 1992, PAGE 251, ERRATA 120,000 TONS, NOT 12,000 TONS AS REPORTED | 30,000 TONS OF TALC FROM 120,000 TONS OF OE MINED AND MILLED |
| 1991 | 102000 |
Talc 34466000 |
||
| 1990 | 102000 |
Talc 34466000 |
||
| 1989 | 90718 |
Talc 38094000 |
||
| 1988 | 114300 |
Talc 40815000 |
||
| 1987 | 81600 |
Talc 36280000 |
Second phase of mill expansion completed. | |
| 1986 | 181430 |
Talc 31751000 |
Second phase mill expansion continuing. | |
| 1985 | 108860 |
Talc 31751000 |
First phase of mill expansion completed. | |
| 1984 | 108840 |
Talc 27215000 |
Mill expansion continuing. | |
| 1983 | 61132 |
Talc 20952000 |
Mill expansion continuing. | |
| 1982 | 66347 |
Talc 18577000 |
Mill expansion started and the fine grind circuit modified. | |
| 1981 | 81630 |
Talc 13605000 |
||
| 1980 | 28570 |
Talc 7437000 |
||
| 1979 | 10880 |
Talc 2721000 |
||
| 1978 | 272 |
Talc |
||
| 1976 | 1 |
Talc |
Mining operations were started but shut down within a few months. |
Map - Reeves and Sewell townships, Sudbury District
Publication Number: M2230 Scale: 1:31,680 Date: 1972
Author: Milne V.G.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Report of Activities 2022, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6402 Page: 7 Date: 2023
Author: Azadbakht Z., Krukowski M., Maity B.K., Bousquet P., Daniels C.M., Hinz S.L.K., Adrianwalla C.J., Dorland G., Sabiri N., Patterson C.
Publisher Name: Ontario Geological Survey
Location:
Journal - Canadian Mining Journal 78-06-16
Publication Number: Page: 459 Date: 1978
Author:
Publisher Name:
Location: Timmins RGP
Map - Precambrian Geology, Northern Swayze Greenstone Belt
Publication Number: M2627 Scale: 1:50,000 Date: 1995
Author: Ayer J.A.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Kukatush-Sewell Lake area, District of Sudbury
Publication Number: R097 Date: 1972
Author: Milne V.G.
Publisher Name: Ontario Division of Mines
Location:
Compend - Annual report of the Regional and Resident Geologists, 1975
Publication Number: MP064 Page: 62 Date: 1976
Author: Kustra C.R.
Publisher Name: Ontario Division of Mines
Location:
Article - 1978 report of Northern Regional Geologist and Timmins Resident Geologist
Publication Number: MP084.005 Page: 57 Date: 1997
Author: Tihor L.A., Hunt D.S.
Publisher Name: Ontario Geological Survey
Location:
Compend - Annual report of the Regional and Resident Geologists, 1980
Publication Number: MP095 Page: 85 Date: 1981
Author: Kustra C.R.
Publisher Name: Ontario Geological Survey
Location:
Article - Timmins Resident Geologist's District - 1989
Publication Number: MP147.012 Page: 234 Date: 1997
Author: Luhta L.E., Sangster P.J., Ireland J.C., Hamblin C.D., Bradshaw M.P.
Publisher Name: Ontario Geological Survey
Location:
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 - Soapstone in Ontario
Publication Number: OFR5764 Page: 121-122 Date: 1991
Author: Gerow M.C., Sherlock E.J., Bellinger J.A.
Publisher Name: Ontario Geological Survey
Location:
Book - World of Minerals No. 182
Publication Number: No. 182 Page: 10 Date: 1982
Author: Coope, R. A
Publisher Name: Industrial Minerals
Location:
Book - Industrial Minerals, 1988, World of Minerals, No. 252
Publication Number: No. 252 Page: 19 Date: 1988
Author: Griffiths, J. B.
Publisher Name:
Location:
Book - Geology of the non-metallics
Publication Number: Date: 1984
Author: Harben, P. W. and Bates, R. L.
Publisher Name: Metal Bulletin, Inc.
Location:
Article - 1974 report of the Northern Regional Geologist and Timmins Resident Geologist
Publication Number: MP060.005 Page: 99-115 Date: 1997
Author: Karvinen W.O., Hunt D.S.
Publisher Name: Ontario Division of Mines
Location:
Mono - Industrial minerals of northern Ontario
Publication Number: MDC026 Page: 272 Date: 1985
Author: Vos M.A., Abolins T., McKnight R.L.W., Smith V.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)
Publication Number: OFR5912 Page: 535-537 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Precambrian Geology, Northern Swayze Greenstone Belt
Publication Number: R297 Page: 54 Date: 1995
Author: Ayer J.A.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2016, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6327 Date: 2017
Author: van Hees E., Bousquet P., Pace A., Daniels C.M., Wilson A.C., Samuel A., Walmsley J.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2017, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6339 Date: 2018
Author: van Hees E., Pace A., Bustard A., Gomwe T.S., Bousquet P., Daniels C.M., Wilson A.C., Streit L., Sword P., Patterson C., Fudge S.P.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2018, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6354 Date: 2019
Author: van Hees E., Bousquet P., Bustard A., Pressacco R.E., Daniels C.M., Fudge S.P., Walker J., Streit L., Wang L., Sword P., Patterson C.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2019, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6366 Date: 2020
Author: van Hees E., Bousquet P., Suma-Momoh J., Daniels C.M., Hinz S.L.K., Boucher C., Sword P., Wang L., Fudge S.P., Millette A., Patterson C.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2020, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6374 Date: 2021
Author: Azadbakht Z., Bousquet P., Zammit K., Daniels C.M., Hinz S.L.K., Sword P., Boucher C., Dorland G., Patterson C.
Publisher Name: Ontario Geological Survey
Location:
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