Ontario Geological Survey
Permanent Link to this Record:
MDI42A06NW00199
| Record Name(s) | Cameco Main Zone - 2002, Bristol Project - 1998, Placer Dome Project 246 - 1985 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 2004-Aug-19 |
| Date Last Modified | 2023-Feb-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Bristol
Latitude: 48° 24' 24.11" Longitude: -81° 29' 3.53"
UTM Zone: 17 Easting: 464157.212 Northing: 5361617.899 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A06NW
Point Location Description: Approximate centre of Main Zone on sketch in T-4780
Location Method: Based on Assessment
Access Description: The property is located in the centre and along the eastern boundary of Bristol Township. Highway 101 bisects the property and provides easy access to the site. Access to the drill site is via Gagnon's auto wrecking yard.
1984-88: Placer Dome Inc. - mapping, ground geophysics, 81 ddh (20,143 m). 1995-95: Teck Corporation - ground geophysics, 4 ddh (1625 m). 1998-2002: Cameco Gold Inc. - ground geophysics, diamond drilling (8466 m). 2003-04: Tom Exploration Inc. - ground geophysics, diamond drilling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-4742, 2.24251 | 42A06NW2031 | 42A06NW2031 |
| T-4780, 2.24662 | 42A06NW2034 | 42A06NW2034 |
| T-3684, 2.16073 | 42A06NW0011 | 42A06NW0011 |
| T-2944, 39 | 42A06NW8453 | 42A06NW8453 |
| 2.10927, T-2944 | 42A06NW8472 | 42A06NW8472 |
| 33, T-2944 | 42A06NW8468 | 42A06NW8468 |
| 31, T-2944 | 42A06NW8467 | 42A06NW8467 |
| 2.7851, T-2944 | 42A06NW8422 | 42A06NW8422 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Quartz-Feldspar Porphyry | 1 | Quartz-Feldspar | Host |
|---|---|---|---|---|
| Sandstone | 2 | Footwall | ||
| Claystone | 3 | Argillite | Footwall |
Dec 07, 2005 (A Wilson) - The occurrences are hosted within a southwest striking parcel of metaseiments which are bounded to the north by mafic metavolcanic rocks and intruded in the central part by a variably altered quartz-feldspar porphyryitic intrusion. The sediments consist of a sequence of chloritic interbeded sandsones and argillitic mudstones. Close to the main porphyry intusion, the sediments are coarser grained with only minor mudstone horizons.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Chalcopyrite | Economic | Gangue | ||||
| Chlorite | Alteration | Chloritic | 1 | Medium | Replacement | ||
| Calcite | Alteration | Carbonatization | 2 | Medium | Replacement | ||
| Silica | Alteration | Silicification | 3 | Medium | Replacement |
Dec 07, 2005 (A Wilson) - The best intersection from Cameco's 2000 drilling BRS00-02 returned 11.4 g/t Au over 0.7 m. Gold values are spatially associated with fine to coarse grained pyrite which locally forms curde bands in the porphyry. Resampling of Dome ddh 264-24 returned 7.9 g/t Au over 3 m. Cameco drill hole BRS02-18 intersected a vein of semi-massive pyrite-chalcopyrite that returned 19.8 g/t Au over 1 m. At the west end of the zone, drill hole BRS02-11 returned 159.9 g/t Au over 0.5 m.
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 700 |
File - Resident Geologist files T-4344, T-4514
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Precambrian Geology, Timmins West - Bristol and Ogden Townships
Publication Number: P3436 Scale: 1:20,000 Date: 2001
Author: Vaillancourt C., Pickett C.L., Dinel E.
Publisher Name: Ontario Geological Survey
Location:
Article - New Geological Mapping and Compilation in the Timmins West Area - Bristol and Ogden Townships
Publication Number: OFR6032.004 Page: 4-1 - 4-11 Date: 2000
Author: Vaillancourt C.
Publisher Name: Ontario Geological Survey
Location:
File - Tom Exploration Inc., press releases, 2004
Publication Number: news release Date: 2004
Author:
Publisher Name:
Location: Timmins RGP
Map - Geological Compilation of the Timmins Area, Abitibi Greenstone Belt
Publication Number: P3379 Scale: 1:100,000 Date: 1998
Author: Ayer J.A., Trowell N.F.
Publisher Name:
Location:
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For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office