Ontario Geological Survey
Permanent Link to this Record:
MDI41P12SW00089
| Record Name(s) | West Side Clam Lake - 1985, #04 Vein Mainland - 1935, Siragusa #53 - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1993-Aug-06 |
| Date Last Modified | 2022-Sep-22 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper
Township or Area: Chester
Latitude: 47° 32' 40.22" Longitude: -81° 57' 26.36"
UTM Zone: 17 Easting: 427962 Northing: 5266120 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P12SW
Point Location Description: The west end of an intermittent set of trenches.
Location Method: Field Visit with GPS
Access Description: The easiest access is via boat from a landing on the north shore on the Chester Shannon Mine access road which connects to Highway 144. Alternative access is from the south via the Chester logging road and Sultan Access road which pass close to the lake. From this road a drill trail leads close to the trench.
1933: The vein was discovered by the Chester Shannon Group - Young Shannon GML and a gold value of 84 g/t ($49.50) Au was reported. An additional assay of 4.4 g/t (0.13opt) appears to pertain to this occurrence. 1965: Chester Minerals Ltd acquired the property and carried out a program of geological mapping, magnetic and HLEM electromagnetic surveying. 1973: Park Precious Metals optioned the property but no work was directed towards this occurrence. 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 with the following results 0.3 to 0.5 g/t Au and 34 to 108ppm Cu. Chester Minerals Limited - EM, Mag. 1987: Young Shannon Gold Partnership carried out a 7 hole diamond drill program to test the mineralization in the area. One of these holes was drilled near the west end of the known vein. Only trace quantities of gold were reported but the hole may have overshot the vein. 2010: Trelawney Mining and Exploration Inc. - AEM, AMag. 2010: Robert, P. - EM, Mag. .
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2023 / 63.1866 | 41P12SW0117 | 41P12SW0117 |
| T-2023 / 63.4435 | 41P12SW0999 | 41P12SW0999 |
| T-2034 / 63A.470 | 41P12SW8459 | 41P12SW8459 |
| T-6043 / 2.44000 | 20000004358 | 20000004358 |
| T-6382 / 2.50730 | 20000007118 | 20000007118 |
| T-2023 / 63A.470 | 41P12SW8459 | 41P12SW8459 |
| T-2030 / 63.3063 | 41P12SW0105 | 41P12SW0105 |
| T-2034 / 63.1866 | 41P12SW0117 | 41P12SW0117 |
| T-2357 / 2.3559 | 41O09NW9161 | 41O09NW9161 |
| T-3201 / 63.4941 | 41P12SW0052 | 41P12SW0052 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2740 Ma Geochron. Age Ref.: GSC OF3884G
Dec 07, 2005 (S Fumerton) - Minor brecciation occurs along the margins of some quartz veins. Like the occurrences on Shannon and Our Islands to which this occurrence may be related, the mineralization is associated with a grain size reduction and chlorite alteration. This alteration and grain comminution may be caused by a major shear zone.
| Rock Type | Rank | Composition | Texture | Relationship | Granodiorite | 1 | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz | Vein | Host |
Dec 07, 2005 (S Fumerton) - The host is a strongly chlorite altered granodiorite similar to the surrounding outcrops. The strong alteration is associated with the development of a strong foliation in the granodiorite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 1 | Specularite | Economic | Gangue | ||||
| Chlorite | Alteration | Chloritic | 1 | Strong | Replacement |
Dec 07, 2005 (S Fumerton) - Sparse, coarse grained pyrite and hematite are associated with the quartz veining. The exposed quartz veining which is associated with calcite veining, is thin and discontinuous. Disseminated pyrite occurs in the granodiorite together with some sulphide veining.
Dec 07, 2005 (A Wilson) - At the time of discovery a gold value of 84 g/t Au was reported. Subsequent sampling in 1933 returned a value of 4.4 g/t Au. a grab sample collected by the OGS in 1980 returned a value of 6.8 g/t Au. Grab samples collected in 1999 returned values of 0.290 oz/t Au and 1.33 oz/t Au.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Gold | Unknown | 6.8 | ppm |
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 100 | 1 | 100 | 90 | N/A | N/A |
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: 73 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
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 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:
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
MonoMap - Geology, Geochemistry and Mineralization of the Southern Margin of the Swayze Belt
Publication Number: OFR5844 Page: 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: 411-413 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office