Ontario Geological Survey
Permanent Link to this Record:
MDI41P12SW00128
| Record Name(s) | Logan Vein - 1947, Chesgo #02 Vein - 1947 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2000-Mar-16 |
| Date Last Modified | 2022-Jul-15 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper, Silver
Township or Area: Chester
Latitude: 47° 33' 24.02" Longitude: -81° 53' 40.02"
UTM Zone: 17 Easting: 432708.58 Northing: 5267415.7 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P12SW
Point Location Description: Exploration shaft
Location Method: Field Visit with GPS
Access Description: The area is easily accessible from either the west via a series of old skidder trails and road from the upper Three Ducks Lake, or from the east via a short traverse from the Chesbar muck pile. Both these routes connect to the Chester Shannon mine access.
1931: Labbe - stripping, trenching. 1933-37: Gomak Mines Ltd. - diamond drilling. 1947-50: Chesgo Mines/Buffalo-Shemac Gold Mines Ltd. - resampling underground at Gomak shaft, trenching, shaft sinking, 2430 m diamond drilling. 1970: Kingbridge Mines - 2 ddh, geological evaluation, stripping. 1979-83: Murgold Resources - airborne radiometric, magnetic and VLF-EM survey, stripping, trenching, sampling, mapping, ground VLF-EM survey. 2010: Trelawney Mining and Exploration Inc. – AEM, AMag.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2027 / W7207-00003 | 41P12SW5184 | 41P12SW5184 |
| T-2433 / 63.4370 | 41P12SW0002 | 41P12SW0002 |
| T-2433 / 2.4888 | 41P12SW0071 | 41P12SW0071 |
| T-2433 / 63.4436 | 41P12SW0061 | 41P12SW0061 |
| T-2433 / | 41P12SW8457 | 41P12SW8457 |
| T-6382 / 2.50730 | 20000007118 | 20000007118 |
| T-2027 / | 41P12SW0094 | 41P12SW0094 |
| T-2433 / 2.4889 | 41P12SW0004 | 41P12SW0004 |
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) - Most of the shearing that occurs in the area is probably related to the emplacement of the Chester Granitoid Complex. Though some tectonic shearing is noticeable, the vein occurs in a discontinuous manner within the shear zone.
| Rock Type | Rank | Composition | Texture | Relationship | Quartz Diorite | 1 | Quartz Diorite | Host |
|---|---|---|---|---|
| Granodiorite | 2 | Host | ||
| Vein | 3 | Quartz | Host |
Oct 25, 2013 (A Wilson) - The general area of the shaft is underlain by hornblende quartz diorites to diorites which have been intruded by a number of small finer-grained felsic to granodiorite dikes. In the vicinity of the shaft, there is a weakly developed and open stockwork of quartz veinlets. Most of these veinlets take the form of extension veinlets, are hosted in the granodioritic phases and appear to be magmatic sweats.
| 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) - Sparsely disseminated pyrite and chalcopyrite occur in the matrix of the granodiorite. Pyrite sporadically occurs in the quartz veinlets. Samples collected by Chesgo Mines in 1947 graded 8 g/t Au, 143 g/t Ag and 0.36% Cu. The results for a series of grab samples along the vein in 1979 graded 8.8 g/t Au. A grab sample collected by the OGS in 1993 returned values of 0.2 g/t Au, 0.2 g/t Ag and 0.02% Cu.
| Rank | Classification |
|---|---|
| 1 | Magmatic |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 290 | 65 |
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:
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: 449-450 Date: 1995
Author: Fumerton S.L., Houle K.A.
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:
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
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