Ontario Geological Survey
Permanent Link to this Record:
MDI42C03NW00016
| Record Name(s) | Gerdes Main Shear - 1998, Tibi Zone - 1998 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2000-Dec-14 |
| Date Last Modified | 2022-Sep-07 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Keating Additional
Latitude: 48° 13' 25.55" Longitude: -85° 19' 37.41"
UTM Zone: 16 Easting: 624251.33 Northing: 5342524.06 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C03NW
Point Location Description: Stripped area next to road and north of swamp
Location Method: Field Visit with GPS
Access Description: The site is accessible via the Eagle River Mine/Paint Lake road. Drive west along the road for approximately 25.5 km to the powerline. Drive north along a forestry road for approximately 12 km.
1998-2000: Charbonneau, Gerdes, Thibodeau - prospecting, stripping, channel sampling. 1999: Noront Resources - mapping, sampling. 1999: River Gold Mines - mapping, sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| WP-Abbie Lake-21 | 42C03NW2003 | 42C03NW2003 |
| WP-Abbie Lake-22 | 42C03NW2004 | 42C03NW2004 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Mafic To Intermediate | Sheared | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz-Carbonate | Host | |
| Quartz-Feldspar Porphyry | 3 | Quartz-Feldspar | Massive | Near |
Dec 07, 2005 (A Wilson) - The lithology consists of a mixture of mafic to intermediate tuffs and crystal tuffs and massive flows interbedded with massive quartz-feldspar porphyry sills. A prominent series of quartz-carbonate ladder veins host the main zone of mineralization.
| 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 | ||||
| 3 | Tourmaline | Economic | Gangue | ||||
| Ankerite | Alteration | Carbonatization | 1 | Medium | Stockwork | ||
| Sericite | Alteration | Sericitization | 2 | Medium | Network |
Dec 07, 2005 (A Wilson) - Channel samples collected by Gerdes et al. returned values of 213.82 g/t Au over 0.6 m (includes visible gold), 5.21 g/t over 1.1 m (grab sample in this area returned 95 g/t Au), 7 g/t Au over 1.34 m, 31 g/t Au over 0.5 m and 1.4 g/t Au over 1.5 m. A grab sample collected by the OGS in 1999 returned values of 1804 ppm Cu, 1.24% Zn and 0.02 oz/t Au.
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 200 | 5 | 73 | 85 |
Map - University River, Algoma and Thunder Bay districts
Publication Number: M2333 Scale: 1:63,360 Date: 1976
Author: Bennett G., Thurston P.C., Giguere J.F.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Pukaskwa River-University River area, districts of Algoma and Thunder Bay
Publication Number: R153 Date: 1977
Author: Bennett G., Thurston P.C.
Publisher Name: Ontario Division of Mines
Location:
Map - Operation Pukaskwa, districts of Algoma and Thunder Bay
Publication Number: P0541 Scale: 1:126,720 Date: 1997
Author: Bennett G., Thurston P.C., Giguere J.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Report of Activities 1998, Resident Geologist Program, Timmins Regional Resident Geologist Report: Timmins and Sault Ste. Marie Districts
Publication Number: OFR5990 Page: 14-15 Date: 1999
Author: Atkinson B.T., Hailstone M.H., Pressacco R.E., Wilson A.C., Hope P., Morra P.M., Draper D.M., Egerland D.C.
Publisher Name: Ontario Geological Survey
Location:
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