Ontario Geological Survey
Permanent Link to this Record:
MDI42C08SW00167
| Record Name(s) | Island Gold Mine - 2006, Island Zone - 1989, Island Gold Project - 1996, Lochalsh Zone - 1990, Island Gold Deposit - 1996 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Producing Mine |
| Date Created | 2000-Oct-27 |
| Date Last Modified | 2024-Feb-06 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Finan
Latitude: 48° 17' 25.63" Longitude: -84° 25' 59.8"
UTM Zone: 16 Easting: 690381.4 Northing: 5351768 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C08SW
Point Location Description: Portal on north shore of Goudreau Lake
Location Method: Other Literature
Access Description: Access is via an 18 km all-weather gravel road that turns off of highway 519 just west of the town of Dubreuilville. Dubreuilville is on highway 519, 44 km east of the junction of Highway 17 and 519. The deposit is located south of the old Goudreau Road and is accessible by bush road from the old Goudreau Road.
1987-90: Canamax Resources Inc. - 10 519 m diamond drilling (94 ddh), 1280 m decline with development on 125- and 140-m levels in 1989; 4167 tonne bulk sample extracted in 1989. 1996-2002: Patricia Mines Ltd. - 42 ddh (15 545 ft), trenching, ground geophysics, seismic survey. 2004: Patricia Mining Corp. - U/G evaluation of deposit, U/G drilling, surface drilling, underground mapping, surface mapping. 2004-present: Richmont Mines Inc. acquires 55% of property; development, mine goes into production in 2006. 2010-2013: Richmont Mines Inc. - airborne geophysics, ground geophysics, UG DD - 545 - 78664 m, DD-49-30015 m. 2017: Alamos Gold Inc. Acquired Richmont Mines Inc.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| WP Finan.72 / 2.23280 | 42C08SW2025 | 42C08SW2025 |
| WP Finan.78 / 2.29774 | 20000013498 | 20000013498 |
| WP Finan.80 / 2.33343 | 20000001757 | 20000001757 |
| WP Finan.82 / 2.38119 | 20000005486 | 20000005486 |
| WP Finan.87 / 2.48046 | 20000013540 | 20000013540 |
| WP Finan.69 / 2.22291 | 42C08SW2020 | 42C08SW2020 |
| WP FIinan.62 / 2.19448 | 42C08SW2010 | 42C08SW2010 |
| WP Finan 77 / 2.27618 | 42C08SW2026 | 42C08SW2026 |
| Finan 0044 / 63.4461 | 42C08SW0058 | 42C08SW0058 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - The showing straddles the boundaries between the Northern and Southern Domains of the Goudreau Lake Deformation Zone. The GLDZ is up to 4.5 km in width and strikes in a gentle sigmoid-form for at least 30 km, subparallel to the stratigraphy and the regional foliation. In the immediate Goudreau-Lochalsh area, the GLDZ is coincident with a major contact between Cycle 2 and Cycle 3 volcanics. There is a strong structural control of the gold-bearing quartz veins systems within each of the 070-075 striking high-strain zones within the deformation zone. The deposit is hosted by the same shear zone hosting the Magino Deposit. The Southern Domain is composed on an 70 degree striking, ductile-brittle zone of subparallel, dextral oblique-slip, high strain zones developed within strongly altered and deformed felsic to intermediate metavolcanic rocks. The southern domain is approximately 8 km long by 2 km wide.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Schist-Unsubdivided | 2 | Carbonate-Sericite | Sheared | Host |
Dec 07, 2005 (A Wilson) - Gold mineralization is hosted by veins and siliceous sections in a quartz-sericite schist. The host rock is interpreted to be a felsice metavolcanic (tuffaceous) and felsic dike rocks that closely resemble the Webb Lake Stock. Both the felsic tuffs and felsic dikes are strongly deformed and sericite-carbonate altered. The alteration zones transect a folded felsic to intermediate tuffs and fragmentals intercalated with mafic metavolcanic rocks. Mafic rock slivers up to 2 m wide, are present within the alteration zones. All rocks are cut at a shallow angle by a felsic intrusive dike. The zone does not outcrop on surface.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Tourmaline | Economic | Gangue | ||||
| Sericite | Alteration | Sericitization | 1 | Medium | Replacement | ||
| Ankerite | Alteration | Carbonatization | 2 | Medium | Replacement |
Jul 11, 2013 (A Wilson) - Gold mineralization is present in en echelon lenses comprising pyrite and quartz veins or sericite and carbonate alteration. Quartz veins are 1 cm to 5 cm i width. The sulphide content varies from 1% to 10%. These lenses are 10 m to 60 m long by 3 m to 5 m wide with a near vertical dip. Gold mineralization is present in opalescent grey quartz within highly sericitized areas. Gold occurs in discrete cm to m width, often deformed veins within a broader alteration zone. Significant assays from the deep drill ing project include: 44.72 g/t Au over 4.84 m; 27.89 g/t Au over 6.58 m; 39.7 g/t Au over 10.62 m, and 58.23 g/t Au over 4.39 m.
Dec 07, 2005 (A Wilson) - Underlying a sequence of feldspar phyric flows is the Zone E alteration envelope which ranges in thickness from 6-8m. The upper contact of the envelope is usually sharply bounded, characterized by pervasive silicification and albitization and quartz-carbonate-tourmaline veinining. The lower contact of the alteration envolope shows enrichment ingold tenure compared with the C/D envelope where gold values are more consistent at the upper contact of th eenvelope.
| Rank | Classification |
|---|---|
| 1 | Epithermal |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| 2 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 900 | 55 | 150 | 70 |
Date: Oct 27, 2000
Geologist: A Wilson
Notes: The Island Gold Zone consists of five subsones. These subzones have a northeasterly strike and a steep southeasterly dip. Patricia has extended the 5 mineralized zones from the Island Gold Zone to the Lochalsh Zone. These are encased in two distinct broad, altered and mineralized zones: South and North. The Shore Zone and the 21 Zone are located about 150 m north of the Lochalsh and Island Gold Zones. The North and South Zones persist throughout the Island Gold zone and are usually 3-15m apart horizontally, although they appear to merge in some area. The North Zone is up to 25 m wide and the South Zone up to 10 m wide. The interstitial rock between the subzones may hold minor mineralized lenses. Both zones have a steep south dip and trend northeasterly.
Date: Jan 19, 2005
Geologist: A Wilson
Notes: The head grade of the bulk sample extracted in 1989 by Canamax was reported to be approximately 6.5 g/t Au. The GLDZ is believed oto be the main control on gold mineralization in the project area. Locally, complex structure influences the orientation and character of the gold mineralized zones. The mineralized zones appear to have been deformed, indicated by thightly folded veins visible in the drill core.
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Island Gold | 2021 | Measured + Indicated Resource | 1096300 | Alamos Gold NI 43-101 Technical Report for the Island Gold Mine, Dubreuilville, Ontario, Canada | 286,300 contained ounces Au | Gold 8.12 g/t |
| Island Gold | 2021 | Proven + Probable Reserve | 4111850 | Alamos Gold NI 43-101 Technical Report for the Island Gold Mine, Dubreuilville, Ontario, Canada | 1,338,450 contained ounces Au | Gold 10.12 g/t |
| Island Gold | 2019 | Proven + Probable Reserve | 3643000 | Alamos Gold Inc. press release February 18, 2020 | 1,215,000 contained ounces Au; Proven + Probable Mineral Reserves | Gold 10.37 g/t |
| Island Gold | 2019 | Measured + Indicated Resource | 879000 | Alamos Gold Inc. press release February 18, 2020 | 184,000 contained ounces Au | Gold 6.51 g/t |
| Island Gold | 2012 | Indicated Mineral Resource | 474379 | Adam p. 20, 11/04/2013 | 105843 oz | Gold 6.94 g/t |
| Island Gold | 2012 | Probable Mineral Reserve | 356263 | Adam p. 18, 11/04/2013 | 66649 oz | Gold 5.82 g/t |
| Island Gold | 2012 | Measured Mineral Resource | 28531 | Adam p. 19, 11/04/2013 | 5115 oz | Gold 5.58 g/t |
| Island Gold | 2012 | Inferred Mineral Resource | 279569 | Adam p. 21, 11/04/2013 | 55754 oz | Gold 6.20 g/t |
| Island Gold | 2012 | Proven | 428958 | Adam p. 18, 11/04/2013 | 74807 oz | Gold 5.42 g/t |
| All zones | 2011 | Proven Mineral Reserve | 354698 | Richmont Mines Inc. | Gold 6.13 g/t | |
| Island Gold Mine | 2009 | Proven + Probable Reserve | 927943 | Richmont Mines Ltd. web site, 28/10/2010 | 264,085 contained ounces; proven and probable | Gold 8.86 g/t |
| Island Gold Mine | 2009 | Inferred Mineral Resource | 640614 | Richmont Mines Ltd., web site 28/10/2010 | 199569 contained ounces | Gold 9.69 g/t |
| Island Gold Mine | 2009 | Indicated Mineral Resource | 456353 | Richmont Mines Ltd. web site 28/10/2010 | 154813 contained ounces | Gold 10.55 g/t |
| Island Gold | 2004 | Inferred Mineral Resource | 275000 | Patricia Mining Corp. press release 11/11/2004 | 275,000 tonnes @ 19.6 g/t uncut, 13.1 g/t cut, 116,000 oz contained | Gold 19.6 g/t |
| Island Gold | 2004 | Indicated Mineral Resource | 272000 | Patricia Mining Corp. press release 11/11/2004 | 272,000 tonnes, 13.8 g/t uncut, 12.3 g/t cut, 108,000 contained ounces | Gold 13.8 g/t |
| Island Gold Deposit | 2002 | Measured Mineral Resource | 148000 | 43-101 report, 29/11/2004 p. 8-9 | non 43-101 compliant | Gold 5.34 g/t |
| Island-Lochalsh West | 2002 | Unclassified | 5423687 | Patricia Mining Corp. press release June 19, 2002 | Gold 1.83 g/t | |
| Island Gold | 2002 | Indicated Mineral Resource | 122000 | 43-101 report, 29/11/2004 p. 8-8 | non 43-101 compliant | Gold 6.95 g/t |
| Island-Lochalsh East | 2002 | Unclassified | 7014219 | Patricia Mining Corp. press release June 19, 2002 | Gold 2 g/t | |
| Island Gold Zone | 2002 | Inferred Mineral Resource | 216000 | 43-101 report, 29/11/2004 p. 8-9 | non 43-101 compliant | Gold 6.37 g/t |
| Island Gold Zone | 1996 | Probable | 195500 | 43-101 report, 29/11/2004 p. 8-8 | Cut to 30 g/t Au; uncut grade 6.5 g/t Au; non 43-101 compliant | Gold 6.5 g/t |
| Island Gold Zone | 1996 | Proven | 10600 | 43-101 report, 29/11/2004 p. 8-8 | Grade is cut to 30 g/t Au; non 43-101 compliant; uncut grade 14.1 g/t Au | Gold 8.9 g/t |
| Island Gold Zone | 1996 | Possible | 744300 | 43-101 report, 29/11/2004 p. 8-8 | Cut to 30 g/t Au; non 43-101 compliant; uncut grade 7.9 g/t Au | Gold 6.9 g/t |
| Island Gold Zone | 1989 | Proven | 30000 | Patricia Mines Ltd. 1998 Prospectus | Gold 4.8 g/t | |
| Island Gold Zone | 1989 | Probable | 51000 | Patricia Mines Ltd. 1998 Prospectus | Gold 4.6 g/t |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 2022 | 420801 |
Gold 140900 Ounces |
Alamos Gold 2022 Year End Results | |
| 2022 | 456592 |
Gold 133700 Ounces |
OFR6402 p. 3 | 133,700 oz Au at a head grade of 9.64 g/t Au |
| 2021 | 438731 |
Gold 140900 Ounces |
OFR6384 p. 3 | 140,900 oz Au at a head grade of 10.35 g/t Au |
| 2021 | 435297 |
Gold 140900 Ounces |
OFR6384 p. 2 | 140,900 oz Au, at a head grade of 10.35 g/t Au |
| 2020 | 386591 |
Gold 139900 Ounces |
OFR6374 p. 2 | 139,900 oz Au, at a head grade of 11.62 g/t Au |
| 2020 | 386591 |
Gold 139000 Ounces |
OFR6374 p. 2 | 139,000 oz Au, at a head grade of 11.62 g/t Au |
| 2019 | 380266 |
Gold 154400 Ounces |
OFR6366 p. 3 | 154,400 oz Au, at a head grade of 12.28 g/t Au |
| 2018 | 369767 |
Gold 105800 Ounces |
OFR6354 p. 4 | 105,800 oz Au, @9.2 g/t Au |
| 2017 | 338603 |
Gold 101842 Ounces |
OFR6339 p. 4 | 101,842 oz Au, @9.36 g/t Au |
| 2016 | 297757 |
Gold 83323 Ounces |
OFR6327 p. 5 | 83,323 oz Au, @9.02 g/t Au |
| 2015 | 242137 |
Gold 55040 Ounces |
OFR6317 p. 4 | 55,040 oz Au, @7.31 g/t Au |
| 2014 | 233202 |
Gold 42079 Ounces |
OFR6304 p. 4 | 42,079 oz Au, @5.83 g/t Au |
| 2013 | 244631 |
Gold 35113 Ounces |
OFR6294 p. 4 | 35,113 oz Au, @4.65 g/t Au |
| 2012 | 246743 |
Gold 41686 Ounces |
OFR6286 p. 4 | 41686 oz Au, @5.45 g/t Au |
| 2011 | 255103 |
Gold 49443 Ounces |
Richmont Mines Inc. | Island Gold Mine produced 49,443 ounces gold from 255,103 tonnes ore grading 6.03 g/t gold in 2011. |
| 2010 | 246712 |
Gold 45654 Ounces |
OFR6264, p.11 | 45654 oz Au, @6.03 g/t Au |
| 2009 | 223354 |
Gold 39727 Ounces |
OFR 6247 p, 16 | 39,727 ounces from 223,354 tonnes@ 5.85 g/t gold |
| 2008 | 162158 |
Gold 38659 Ounces |
OFR 6235 p. 18 | 38,659 ounces from 162,158 tonnes @7.74 g/t gold |
| 2007 | 159493 |
Gold 29235 Ounces |
OFR6219 p. 17 | 29,235 ounces from 159,493 tonnes @6.02 g/t gold |
| 2006 | 41521 |
Gold 6779 Ounces |
OFR 6203 p. 16 | 6779 ounces from 41,521 tonnes @5.08 g/t gold |
Book - Alamos Gold NI 43-101 Technical Report for the Island Gold Mine, Dubreuilville, Ontario, Canada
Publication Number: NI 43-101 Page: 18-19 Date: 2022
Author: Bourgeault, N., Vincent, R., Webster, C., Lincoln, N.
Publisher Name: Alamos Gold Inc.
Location: SEDAR
Mono - Geological and structural setting of gold mineralization in the Goudreau-Lochalsh area, Wawa gold camp
Publication Number: OFR5832 Page: 25 Date: 1992
Author: Heather K.B., Arias Z.G.
Publisher Name: Ontario Geological Survey
Location:
Compend - Report of activities, 1989, Resident Geologists
Publication Number: MP147 Page: 188 Date: 1990
Author: Fenwick K.G., Giblin P.E., Pitts A.E.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2021, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6384 Page: 2 Date: 2022
Author: Azadbakht Z., Bennett D., Maity B.K., Bousquet P., Daniels C.M., Hinz S.L.K., Morelli E., Dorland G.
Publisher Name: Ontario Geological Survey
Location:
Compend - Report of activities, 1990, Resident Geologists
Publication Number: MP152 Page: 194 Date: 1991
Author: Fenwick K.G., Newsome J.W., Pitts A.E.
Publisher Name: Ontario Geological Survey
Location:
Compend - Report of activities, 1988, Resident Geologists
Publication Number: MP142 Page: 186 Date: 1989
Author: Fenwick K.G., Giblin P.E., Pitts A.E.
Publisher Name: Ontario Geological Survey
Location:
Book - Annual reports and press releases
Publication Number: clippings Date: 2000
Author: Patricia Mining Corp.
Publisher Name:
Location: Timmins RGP
Book - Technical Report On The Island Deposit, 43-101 Report
Publication Number: NI 43-101 Date: 2004
Author: Roscoe Postle and Associates
Publisher Name:
Location: Timmins RGO
Mono - Report of Activities 2006, Resident Geologist Program, Timmins Regional Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6203 Page: 16 Date: 2007
Author: Atkinson B.T., Hailstone M.H., Wilson A.C., Draper D.M., Pace A., Woo H.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2007, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6219 Page: 17 Date: 2008
Author: Atkinson B.T., Pace A., Woo H., Wilson A.C., Butorac S., Cholette D., Draper D.M., Seim G.Wm.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2008, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6235 Page: 18 Date: 2009
Author: Atkinson B.T., Pace A., Woo H., Wilson A.C., Butorac S., Draper D.M.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian geology, Finan Township
Publication Number: P3168 Scale: 1:15,840 Date: 1990
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2009, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6247 Page: 16 Date: 2010
Author: Atkinson B.T., Pace A., Beauchamp S.A., Bousquet P., Butorac S., Draper D.M., Wilson A.C.
Publisher Name: Ontario Geological Survey
Location:
Publication - Technical Report On The Mineral Resource Estimate For The C Zone, Island Gold Deep Project, Island Gold Mine, 186p.
Publication Number: NI 43-101 Date: 2013
Author: D. Adam
Publisher Name:
Location: Timmins RGO
Mono - Report of Activities 2013, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6294 Page: 4 Date: 2014
Author: Atkinson B.T., Bousquet P., Pace A., Debicki R.L., Daniels C.M., Wilson A.C., Halet S.E., Beauchamp S.A., McMillan R.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2014, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6304 Page: 4 Date: 2015
Author: Bousquet P., Pace A., Daniels C.M., Debicki R.L., Wilson A.C., Samuel A., Yukich A.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2015, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR6317 Page: 4 Date: 2016
Author: van Hees E., Bousquet P., Pace A., Daniels C.M., Debicki R.L., Wilson A.C., Beauchamp S.A., Walmsley J.
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 Page: 4 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 Page: 4 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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