Ontario Geological Survey
Permanent Link to this Record:
MDI41P12SW00036
| Record Name(s) | Côté Lake Deposit - 2009, Cote Lake West - 1984, Three Ducks #3 Vein - 1931, Cote Lake - 1979, Siragusa #82 - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1993-Aug-18 |
| Date Last Modified | 2023-Mar-16 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver, Copper
Township or Area: Chester
Latitude: 47° 33' 11.49" Longitude: -81° 55' 45.13"
UTM Zone: 17 Easting: 430089.58 Northing: 5267059.7 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P12SW
Point Location Description: A 25m long and 2 to 3m deep trench.
Location Method: Field Visit with GPS
Access Description: Easy access to the occurrence is possible via canoe across Cote Lake from the Young Shannon camp site. In turn the Young Shannon camp is connected to Highway 144 via an old mine access road which crosses Lake Mesomikenda.
1930: Three Ducks Syndicate: trenching, sampling 1931: Cominco - sampling 1932: R. Martin - DD 1936: Young Shannon Gold Mines Limited - sampling. 1965 Chester Minerals - ground geophysics, DD 1973: Park Precious Metals Inc - DD-1. 1984-85: Chester Minerals - ground geophysics, mapping, sampling, trenching, DD 1986: Westport Resources Inc. - ground geophysics, mapping, DD. 2007: Augen Gold Corp. - airborne geophysics 2009-2012: Trelawney Mining and Exploration Inc. : ground geophysics, airborne geophysics. DD-129-42,199 m. 2012: IAMGOLD Corporation - DD-189-109-689 m
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-6060 / 2.43510 | 20000004318 | 20000004318 |
| T-5671 / 2.37373 | 20000002805 | 20000002805 |
| T-2023/ 63.1866 | 41P12SW0117 | 41P12SW0117 |
| T-2023 / 63A.470 | 41P12SW8459 | 41P12SW8459 |
| T-2023 / 63.4929 | 41P12SW0043 | 41P12SW0043 |
| T-2023 | 41P12SW0102 | 41P12SW0102 |
| T-6382 / 2.50730 | 20000007118 | 20000007118 |
| T-6384 /2.50729 | 20000007118 | 20000007118 |
| T-2030/ 63.3063 | 41P12SW0105 | 41P12SW0105 |
| T-2023 / 63.4435 | 41P12SW0999 | 41P12SW0999 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2740 MA Geochron. Age Ref.: GSC OF 3384A
Dec 07, 2005 (S Fumerton) - The shear zone in the granodiorite is a broad zone 3 to 4m thick with widely spaced individual shears that are up 1cm thick and separated by weakly foliated granodiorite. An intersection lineation along the quartz vein walls plunges 40 towards 080. The shearing in the discordant mafic dykes is left lateral and trending 150/78 E.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Vein | Host |
|---|---|---|---|---|
| Granodiorite | 2 | Brecciated | Host | |
| Vein | 3 | Quartz | Host |
Dec 07, 2005 (S Fumerton) - The host rock is a medium to coarse grained granodiorite to leuco granodiorite with variable concentrations of hornblende and chlorite together with sparsely disseminated pyrite and chalcopyrite. Locally small mafic dykes cut the granodiorite host and are strongly sheared. Where the granodiorite is cut by shear zones the host rock has a smaller grain size and chlorite alteration is variably present from minor amounts to locally intense adjacent to the richer auriferous sections of quartz veining. Small scattered muscovite books occur along the margins of some quartz veins as does some silicification. Chlorite filled fractures and quartz knots also occur in the sheared granodiorite.
Nov 14, 2011 (P Bousquet) - The mineralization encountered in the Trelawney Mining and Exploration Inc's holes was hosted in diorite, granodiorite and gabbro as well as variabliy altered combination of all three rocks.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Telluride | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Chalcopyrite | Economic | Gangue | ||||
| 3 | Arsenopyrite | Economic | Gangue | ||||
| Chlorite | Alteration | Chloritic | 1 | Medium | Replacement |
Dec 07, 2005 (S Fumerton) - The mineralization is hosted in and adjacent to an attenuated quartz vein which varies between 30cm to 10cm thick. The quartz is coarse grained, clear to milky white in colour. Locally the quartz grains have been fragmented and tremolite prisms have grown in vugs with the quartz vein. Disseminated pyrite and chalcopyrite occur in and adjacent to the veins and some spectacular visible gold has been reported. Rare grains of tellurides and arsenopyrite have been reported in the quartz veins. Erratic rusty spots up to a centimetre of deep laterite weathering occur within the quartz vein and sheared granodiorite, and are probably derived from pyrite. Along fractures in the strong chlorite alteration zone adjacent to vein is a weak development of malachite staining.
Sep 06, 2012 (A Wilson) - A chip sample at the time of discovery reportedly assayed 80 g/t Au and 20 g/t Ag. Channel samples collected in 1936 returned values of 18 g/t Au over 0.6m. A grab sample collected by Chester Minerals in 1984 returned 30g/t Au and 0.2% Cu. Diamond drilling has returned disappointing results. A grab sample collected by the OGS in 1993 returned an assay of 0.06 g/t Au and 0.3 g/t Ag. Côté Lake mineralization is associated with a large volume of altered and brecciated intrusive rocks wherein gold mineralization occurs in association with disseminated sulphides in the gabbro matrix of the breccias as well as in the breccia clasts, as fracture coatings and in thin veins or veinlets with quartz. As outlined by the current drilling, the Côté Lake breccia system is approximately 1,200 m by 300 m in plan dimensions and extends to a depth of at least 700 m. Two different types of gold mineralization are recognized on Trelawney’s Chester Township properties. The historically important mineralization can be termed quartz vein and fracture associated (Type 1), while the new Côté Lake discovery is viewed as an Archean gold porphyry deposit (Type 2). Composite samples from the property were analysed and and had gold head grades 0.98 g/t and 1.34 g/t, respectively. Head analysis also showed that Composite 1 contained 0.16% Cu and Composite 2, 0.013% Cu.
Nov 14, 2011 (P Bousquet) - Trelawney Mining and Exploration Inc performed 47 holes for 23 500 metres of core. They returned assays from 0.72 g/t Au to 1.65 g/t Au (cut), over 16.5 metres to 195.84 metres.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Copper | Unknown | .376 | % | |||
| Gold | Unknown | .06 | ppm | |||
| Lead | Unknown | .0001 | % | |||
| Molybdenum | Unknown | .0001 | % | |||
| Silver | Unknown | .3 | ppm | |||
| Zinc | Unknown | .0085 | % |
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| 2 | Porphyry |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 1200 | 700 | 60 | 90 | 40 | 80 |
Date: Jul 28, 1954
Geologist: W Savage
Notes: The three-vein showing on the Three Ducks Syndicate property, located close to the centre of the east shore of Cote Lake was much overgrown and hard to find, but one exposure of the three veins, dipping flatly to the north was seen. Laird reported specks of visible gold in these veins.
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Côté Lake Deposit | 2019 | Measured + Indicated Resource | 365500000 | IAMGOLD NI 43-101 August 12, 2022 | 10,200,000 ounces gold | Gold 0.87 g/t |
| Côté Lake Deposit | 2019 | Inferred Mineral Resource | 189600000 | IAMGOLD NI 43-101 August 12, 2022 | 3,820,000 ounces gold | Gold 0.63 g/t |
| Côté Lake Deposit | 2013 | Indicated Mineral Resource | 269000000 | IAMGOLD press release 22/01/2013 | 7,610,000 ounces gold | Gold 0.88 Grams per Tonne |
| Côté Lake Deposit | 2013 | Inferred Mineral Resource | 44000000 | IAMGOLD press release 22/01/2013 | 1,040,000 ounces | Gold 0.74 Grams per Tonne |
| Côté Lake Deposit | 2012 | Inferred Mineral Resource | 165000000 | Technical report on the Côté Lake Deposit, Chester Property, Ontario, Canada by J. Lavigne and W. E. Roscoe., October 24 2012 | 4,660,000 contained ounces | Gold 0.88 Grams per Tonne |
| Côté Lake | 2012 | Indicated Mineral Resource | 35000000 | Roscoe and Cook, 2012 | 930,000 ounces contained gold | Gold 0.82 Grams per Tonne |
| Côté Lake | 2012 | Inferred Mineral Resource | 204000000 | Roscoe and Cook, 2012 | 5,940,000 ounces contained gold | Gold 0.91 Grams per Tonne |
| Côté Lake Deposit | 2012 | Indicated Mineral Resource | 131000000 | Technical report on the Côté Lake Deposit, Chester Property, Ontario, Canada by J. Lavigne and W. E. Roscoe., October 24 2012 | 3,560,000 contained ounces | Gold 0.84 Grams per Tonne |
| COTE LAKE | 2011 | Inferred Mineral Resource | 131000000 | NI43-101 report: Technical report on the Côté Lake Deposit, Chester Property, Ontario, Canada by Roscoe, W.E. and Cook, R.B., April 2011 | The authors of the report casted some doubts over the nature of the deposit. The discovery is associated with a large volume of brecciated and altered diorite, granodiorite and gabbro. It is undeformed and not affected by the regional metamorphism. | Gold 1 Grams per Tonne |
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 41P-44 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
File - Resident Geologist files T-6349, T-6350
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Three Duck Lakes area, District of Sudbury, Ontario
Publication Number: ARM41D Scale: 1:47,520 Date: 1997
Author: Laird H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological series, Precambrian geology of Chester and Yeo townships, and parts of Neville and Potier townships, Jerome area, Sudbury District
Publication Number: P2449 Scale: 1:15,840 Date: 1981
Author: Siragusa G.M.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Three Duck lakes area
Publication Number: ARV41-03.001 Page: 29 Date: 1998
Author: Laird H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology, Parts of Chester, Neville, Potier and Yeo Townships
Publication Number: OFM0214 Scale: 1:15,840 Date: 1993
Author: Siragusa G.M.
Publisher Name: Ontario Geological Survey
Location:
Mono - Gold deposits of Ontario, part 2, part of District of Cochrane, districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and counties of southern Ontario
Publication Number: MDC018 Page: 93 Date: 1979
Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.
Publisher Name: Ontario Geological Survey
Location:
Map - Geology, Swayze greenstone belt, Gogama, Ontario
Publication Number: OF3384G Scale: 1:50,000 Date: 1999
Author: Heather, K B; Shore, G T
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/210455
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file
Publication Number: OFR5467 Date: 1983
Author: Hodgson C.J.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology, Geochemistry and Mineralization of the Southern Margin of the Swayze Belt
Publication Number: OFR5844 Page: 113 Date: 1993
Author: Siragusa G.M.
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: 423-425 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
Publication - Technical Report on the Côté Lake Resource Update, Chester Property, Ontario, Canada, 144p
Publication Number: NI 43-101 Rpt Date: 2012
Author: W.E. Roscoe and R.B. Cook
Publisher Name:
Location: Timmins RGO
Publication - Technical report on the Côté Lake Deposit, Chester Property, Ontario, Canada
Publication Number: NI 43-101 Rpt Date: 2012
Author: J. Lavigne and W. E. Roscoe
Publisher Name:
Location: Timmins RGO
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