Ontario Geological Survey
Permanent Link to this Record:
MDI41P12SW00129
| Record Name(s) | Labbe #1 - 1931, Chesgo #08 Vein - 1948, Occurrence #24 - 1981, Siragusa #71 - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2000-Mar-16 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Silver
Secondary Commodities: Copper
Township or Area: Chester
Latitude: 47° 33' 24.62" Longitude: -81° 53' 58.32"
UTM Zone: 17 Easting: 432326.58 Northing: 5267438.7 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P12SW
Point Location Description: West end of stripping
Location Method: Field Visit with GPS
Access Description: From the Chester Shannon mine access road, easy access to the prospect is possible by the old tote road south from Three Duck Lakes to the abandoned power line. At ther power line, there is a good skidder trail to the northeast leading to the stripped outcrop.
1931: Labbe - stripping, sampling. 1933-37: Gomak Mines Ltd. - diamond drilling. 1945-48: Chesgo Mines/Buffalo-Shemac Gold Mines Ltd. - sampling, trenching, pitting. 1970: Kingbridge Mines - geological evaluation. 1971: Bridge Hill Mines Limited – Rept. 1979-82: Murgold Resources - airborne radiometric, magnetic and EM survey, stripping, trenching, sampling, mapping, ground VLF-EM survey. 1986-88: Chesbar Resources - diamond drilling. 2010: Trelawney Mining and Exploration Inc. – AEM, AMag.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2015 / 63.2887 | 41P12SW0110 | 41P12SW0110 |
| T-2433 / 2.4889 | 41P12SW0004 | 41P12SW0004 |
| T-6382 / 2.50730 | 20000007118 | 20000007118 |
| T-2433 / 2.4888 | 41P12SW0071 | 41P12SW0071 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2740 MA Geochron. Age Ref.: GSC OF 3384G
Oct 25, 2013 (A Wilson) - Though the shear zone related to the mineralization is continuous and cuts across various igneous phases of the granitoid complex, it varies greatly in intensity and width. Locally, the shear is less than 10 cm wide and is barely perceptible, but changes along strike to a structure that is up to 3 m wide and well defined. The quartz veins within the shear zones, pinch and swell along strike. An early foliation is present in the granodiorite and it is transected by the shearing.
| Rock Type | Rank | Composition | Texture | Relationship | Granodiorite | 1 | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz | Host | |
| Vein | 3 | Quartz | Vein | Host |
| Diorite | 4 | Diorite | Host |
Dec 07, 2005 (A Wilson) - The dominant rock type in the area is a massive coarse-grained hornblende diorite to quartz diorite. Locally, there are agmatitic phases in the diorite, together with a number of felsic and granodiorite dikes or small plugs. Associated with the shearing, ther eis a widespread, though weak, chlorite alteration but locally there is a strong siliceous alteration within the granodioiritic phases. This siliceous alteration also has a sheared appearance suggesting that the quartz veining may be a protracted event. Late, fine-grained diorite dikes cut across the shear zone with minor off-shoots. These off-shoots locally follow along the shear zone for a short distance and displace the sheared material and quartz veining if present.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue |
Oct 25, 2013 (A Wilson) - Where the host shear zone is well defined, quartz veining may be present. These veins are discontinuous, up to a metre wide, locally fault offset, brecciated, or folded within the shear. Where the quartz veins are brecciated, the voids in the rock are partizlly mineralized with coarse-grained pyrite, chlorite and minor chalcopyrite. Similarly, mineralization disseminated in the sheared granitoids outside of the quartz veining, is also discontinuous along strike. It would appear that the better mineralization occurs where the shear zones cut the granodiorite rather than diorite phases of the Chester Granitoid Complex. Selected grab samples from the original trenches reportedly returned up to 3 g/t Au, 23 g/t Ag and 0.8% Cu (1945). samples collected by Murgold in 1979 returned assays up to 53 g/t Au, but the average grade along the 275m strike length was 4.4 g/t au.
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 275 | 2 | 290 | 75 |
File - Resident Geologist files T-2027, T-5250
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:
Part - Geology of the Makwa-Churchill area
Publication Number: ARV43-03.002 Page: 76 Date: 1998
Author: Laird H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Article - Timmins Resident Geologist's District - 1988
Publication Number: MP142.012 Date: 1997
Author: Luhta L.E., Sangster P.J., Draper D.M., Ireland J.C., Bradshaw M.P., Hamblin C.D.
Publisher Name: Ontario Geological Survey
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:
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:
Book - 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
Map - Geology, Swayze greenstone belt, Gogama, Ontario
Publication Number: OF 3384G 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: 102-103 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: 451-452 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
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