Ontario Geological Survey
Permanent Link to this Record:
MDI41P12SW00055
| Record Name(s) | Shannon Island - 1933, Young Shannon F Zone - 1987, Siragusa #52 - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1993-Aug-05 |
| Date Last Modified | 2022-Sep-22 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Copper
Township or Area: Chester
Latitude: 47° 32' 47.45" Longitude: -81° 57' 16.08"
UTM Zone: 17 Easting: 428179.57 Northing: 5266340.69 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P12SW
Point Location Description: Old shaft on a small island in Clam Lake.
Location Method: Field Visit with GPS
Access Description: Easy access by boat is possible from a landing at the north end of the Lake on the Chester Shannon Mine Access road. The road connects to Highway 144 via Mesomikenda Lake or via the Chester Logging road and the Sultan Access road.
1933: Milton Jessop found the occurrence while working for the Chester Shannon Group - Young Shannon GML and a 7m (25 foot) test pit was sunk. Reported gold values ranged between 24 and 47 g/t gold ($14 to $27.50) together with 40 g/t Ag and 3.5% Cu in a quartz vein. 1934: Young Shannon GML started shaft sinking on the old pit which achieved a depth of 38m (125') together with 30m of lateral development by the years end. Old records indicate that the underground samples returned weighted average gold values of 17 g/t and 3.3% Cu over 0.6m in a number of zones down the shaft. In addition 910m (3,000') of diamond drilling was carried out. Results and location of the drilling is unknown. 1965: Chester Minerals Ltd acquired the property and carried out a program of geological mapping, magnetic and HLEM electromagnetic surveying. Based on this work 5 holes were drilled to test targets east of Shannon Island. 1973: Park Precious Metals dewatered the old shaft, extended the lateral development a short distance, and sampled the mineralized veins. Results from two rounds averaged 0.5g/t Au, 0.18% Cu, and trace Ag. Results of a nearby diamond drill hole cored at this time were reported as 'of no economic value'. 1980: Hargor Resources together with Canadian Gold and Metal Inc carried out a regional airborne magnetic and VLF electromagnetic survey which covered the area. 1984 Chester Minerals carried out a geological evaluation of the occurrence in combination with other known occurrences on Clam Lake and resampled the mineralization on the rock dump with the following result 7.57 g/t Au, 1% Cu. Chester Minerals Limited – EM, Mag. 1987:Young Shannon Gold Partnership carried out a 7 hole diamond drill program to test the mineralization in a sheared and brecciated structure plus other targets (679m). The two intersections of the vein returned values of 19 g/t Au and 2.8 g/t Ag over 0.3m and 9.5 g/t Au and 6 g/t Ag over 0.6m. 2010: Robert, P. – EM, Mag. Trelawney Mining and Exploration Inc. – AEM, AMag.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2023 / 63.1866 | 41P12SW0117 | 41P12SW0117 |
| T-2023 / 63.4435 | 41P12SW0999 | 41P12SW0999 |
| T-6043 / 2.44000 | 20000004358 | 20000004358 |
| T-6382 / 2.50730 | 20000007118 | 20000007118 |
| T-2023 / 63A.470 | 41P12SW8459 | 41P12SW8459 |
| T-3201 / 63.4941 | 41P12SW0052 | 41P12SW0052 |
| T-2357 / 2.3559 | 41O09NW9161 | 41O09NW9161 |
| T-2030 / 63.3063 | 41P12SW0105 | 41P12SW0105 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2740 MA Geochron. Age Ref.: GSC OF 3384G
Dec 07, 2005 (S Fumerton) - It would appear from the debris on surface that the host lithology has been derived from the surrounding granodiorite body by alteration and grain size reduction associated with shearing. There is also a weak foliation in the rock that strikes 100 degrees. Quartz stringers in the outcrop trend 060.
| Rock Type | Rank | Composition | Texture | Relationship | Granodiorite | 1 | Mela | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz | Vein | Host |
| Vein | 3 | Quartz | Contains |
Dec 07, 2005 (S Fumerton) - The host rock is a medium to fine grained granitoid which is a pale green - grey on the fresh surface and off white on the weathered surface. Blue quartz grains form between 5 and 20% of the rock. Chlorite alteration of the host is strong and pervasive and is locally associated with moderate carbonate alteration and rarely with the growth of pink feldspar porphyroblasts. The porphyroblasts occur in aggregates of randomly orientated grains. Sericite alteration has been reported but was not observed. Disseminated pyrite is widespread in low concentrations in the host rock.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 1 | Arsenopyrite | Economic | Gangue | ||||
| Chlorite | Alteration | Chloritic | 1 | Strong | Replacement | ||
| Malachite | Alteration | Supergene | 2 | Weak | Disseminated |
Dec 07, 2005 (S Fumerton) - In the muck pile there are some white quartz veins with coarse grained pyrite and chalcopyrite. Blue quartz vein material with aggregates of 5% chalcopyrite and 5% pyrite has also been reported. Massive sulphide veins up to 3cm thick occur in the muck pile with pyrite and some chalcopyrite. Malachite development is associated with these veins. The relationship between these sulphide veins and the quartz veins is unknown.
Dec 07, 2005 (A Wilson) - Weighted samples from underground in 1934 returned values of 17 g/t Au and 3.38% Cu over 0.6m. Grab samples taken from the muck pile in 1984 returned values of 7.57 g/t au and 1% Cu. Grab samples collected by the OGS in 1993 returned 12.51 g/t au and 4.2% Cu.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Copper | Unknown | .676 | % | |||
| Gold | Unknown | 13.51 | g/t | |||
| Lead | Unknown | .0011 | % | |||
| Molybdenum | Unknown | .0004 | % | |||
| Silver | Unknown | 4.2 | g/t | |||
| Zinc | Unknown | .0028 | % |
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 1 | 50 | N/A | N/A |
Date: Jul 28, 1954
Geologist: W Savage
Notes: On Map No. 41d two small islands are shown in the mouth of the west bay of Clam Lake which crosses the west boundary of Chester township at mileage III 1/3. The headframe of an old shaft, put down by the Young Shannon Gold Mines Ltd. in 1934, can still be seen on the north island which is almost entirely covered by the mine dump. The shaft was sunk on a gold- bearing quartz vein which contained sulphides. Fragments of the vein, mineralized with pyrite and chalcopyrite, can be seen on the dump. [ PRECIS ]
Date: Aug 10, 1993
Geologist: S Fumerton
Notes: In company with Messrs Norbert Reinhart and Bill Yee the old workings were visited. The island is mostly covered with mine rubble plus some scrap steel. Most of the scrap appears to date from the earlier underground exploration efforts and it would appear that during these efforts compressed air was pipped in from the mainland possibly in winter across the ice and some muck was taken back to the mainland in a small sloop across the ice. Remnants of the ice sloop are on the island and cribbing to support some services exist on Our Island. The rotten, wooden flooring that remains appears to be part of the original hoist building. The shaft is open and lined with rotten timbers with some steel plumbing. The shaft is also choked with debris which includes timbers, steel pipe, and rock. Mention has been made in the assessment files of a second pit to the west of the shaft. This is not a pit but is rather a depression caused by mine muck slumping into a cavity caused when a rotten wood cribbing collapsed.
File - Resident Geologist files T-6349
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:
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:
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-65 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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
Part - Geology of the Makwa-Churchill area
Publication Number: ARV43-03.002 Page: 79-80 Date: 1998
Author: Laird H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mines of Ontario in 1934
Publication Number: ARV44-01.003 Page: 154 Date: 1997
Author: Sinclair D.G., Keeley E.C., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 234-235 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
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: 53 Date: 1979
Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.
Publisher Name: Ontario Geological Survey
Location:
Article - Jerome area, District of Sudbury
Publication Number: MP096.012 Page: 51-54 Date: 1997
Author: Siragusa G.M.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Three Duck lakes area
Publication Number: ARV41-03.001 Page: 31-33 Date: 1998
Author: Laird H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mines of Ontario in 1934
Publication Number: ARV44-01.003 Page: 154 Date: 1997
Author: Sinclair D.G., Keeley E.C., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mines of Ontario in 1935
Publication Number: ARV45-01.003 Date: 1997
Author: Sinclair D.G., Keeley E.C., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 234-235 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: 87-88 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: 408-409 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office