Ontario Geological Survey
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MDI42A09NW00005
| Record Name(s) | Shallow River - 1990, O'Neil-Potter - 1990 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1990-Nov-11 |
| Date Last Modified | 2023-Jan-19 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Coulson
Latitude: 48° 38' 39.46" Longitude: -80° 16' 28.71"
UTM Zone: 17 Easting: 553431.08 Northing: 5388168.799 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 42A09NW
Point Location Description: N/A
Location Method: Data Compilation
Access Description: Point Located: A point 2.25 km north and 0.05 km west of the southeast corner of Coulson Township.
1919: Knight et al. (1919) reported that on the O'Neill-Potter claims (along the Shallow River near the southeast corner of Coulson Township), low gold values occur within a pyritic and graphitic quartzite schist. 1939: By this time, Shallow River Gold Mines Ltd. had diamond drilled at least 38 holes totalling at least 11,240 feet near the northeast quarter of the south half of lot 1A, concession II, Coulson Township. Gold tenors as high as 1.68 ounce of gold per ton are reported. Most anomalous gold assays (greater than 0.01 ounce of gold per ton) are from pyritic and graphitic sediment. 1972: Noranda Exploration Co. Ltd. completed magnetic and large loop VL electromagnetic surveys. 1979: Amax Potash Ltd. completed geological, magnetic, and electromagnetic surveys. 1988: Maude Lake Gold Mines Ltd. and Equinox Resources Ltd. completed magnetic and electromagnetic surveys and diamond drilled 8 holes totalling 2,069 feet near the Shallow River Gold Mines Ltd. drilling. This drilling yielded anomalously elevated gold concentrations (greater than 0.01 ounce of gold per ton) from core lengths ranging from 2 to 22 feet in all but one hole. 1997: Maude Lake prospected the area. Sample 687026, collected on the river assayed 599 ppb Au. 1999: Maude Lake drilled 2 holes totalling 620 m. Best assay 2298 ppb Au over 0.9 m in M-99-02.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| KL-4285, 2.17644 | 42A09NW0034 | 42A09NW0034 |
| 2.874 | 42A09NW0444 | 42A09NW0444 |
| 2.2949 | 42A09NW0437 | 42A09NW0437 |
| 2.3112 | 42A09NW0436 | 42A09NW0436 |
| 20 | 42A09NW0417 | 42A09NW0417 |
| 2.10815 | 42A09NW0026 | 42A09NW0026 |
| 2.20030 | 42A09NW2008 | 42A09NW2008 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Stoughton-Roquemaure
Geological Age: Archean
Metamorphism Grade: Greenschist
Dec 07, 2005 (C Salo) - Geological mapping (Leahy and Ginn 1962; Johnstone 1986; Gupta and Johnstone 1987; Jensen and Baker 1986; Johnstone and Steele 1989; Vagners 1984; McClenaghan et at. 1988, 1987; Steele 1988; assessment files, Resident Geologist's Office, Kirkland Lake) and exploration diamond drilling (assessment files) indicate that gold mineralization at the Shallow River occurrence is hosted mainly by sparsely exposed weakly metamorphosed (greenschist or lower metamorphic facies) intermediate to felsic volcanic, volcaniclastic, and tuffaceous rock and graphitic and/or pyritic clastic interflow sediment of the (Archean) Stoughton-Roquemaure Group. The occurrence is near the interpreted location of the Pipestone Fault Zone (also known as the Middle Branch of the Porcupine-Destor Fault Zone (Johnstone 1987, Jensen and Langford 1985)). Interpretation of geophysical data (OGS 1984, assessment files) suggests that the basement volcanic stratigraphy in the area strikes east southeast. Diamond drilling indicates that bedrock dips are subvertical.
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Sediments | N/A |
|---|---|---|---|---|
| Felsic lava flow-unsubdivided | 2 | Flows | N/A | |
| Felsic lava flow-unsubdivided | 3 | Fragmental | N/A |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Graphite | Economic | Gangue | ||||
| 3 | Pyrite | Economic | Gangue | ||||
| 4 | Carbonate | Economic | Gangue | ||||
| 5 | Sericite | Economic | Gangue | ||||
| 6 | Fuchsite | Economic | Gangue | ||||
| Sericite | Alteration | Sericitization | 1 | ||||
| Carbonate | Alteration | Carbonatization | 2 |
Dec 07, 2005 (C Salo) - Diamond drilling by both Shallow River Gold Mines Ltd. and Equinox Resources Ltd./Maude Lake Gold Mines Ltd. intersected anomalously elevated gold tenors (greater than 0.01 ounce of gold per ton and as high as 0.256 ounce of gold per ton) across significant (2-22 feet) core lengths within variably graphitic, pyritic, sericitic, and carbonate bearing intermediate to felsic fragmental volcanic rock, tuff, and variably pyritic, graphitic, and fuchsitic interflow sediment. Quartz- (carbonate) veins and/or veinlets may or may not be associated with this anomalously auriferous material.
File - Resident Geologist files KL-0043, KL-1783, KL-2040, KL-2475
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Geological series, preliminary results of bedrock samples from the sonic drilling, 1985, Lake Abitibi-Matheson area, District of Cochrane
Publication Number: P2986 Scale: 1:100,000 Date: 1986
Author: Jensen L.S., Steele K.G., McClenaghan M.B., Baker C.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Black River-Matheson Area
Publication Number: OFM0050 Scale: 1:15,840 Date: 1986
Author: Johnstone R.M.
Publisher Name:
Location:
Map - Geological series, bedrock samples from the sonic drilling program 1987, Matheson area, District of Cochrane
Publication Number: P3114 Scale: 1:100,000 Date: 1989
Author: Johnstone R.M., Sutcliffe R.H., Steele K.G., Baker C.L., McClenaghan M.B.
Publisher Name: Ontario Geological Survey
Location:
Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file
Publication Number: OFR5467 Page: G0342 Date: 1983
Author: Hodgson C.J.
Publisher Name: Ontario Geological Survey
Location:
Folio - Coulson Township, District of Cochrane
Publication Number: GDIF369 Date: 1997
Author: Kirkland Lake RGO
Publisher Name: Ontario Geological Survey
Location:
Map - Coulson Township, District of Cochrane
Publication Number: P0157 Scale: 1:15,840 Date: 1997
Author: Leahy E.J., Ginn R.M.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geophysical/geochemical series, Matheson-Black River area, Coulson Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane
Publication Number: M80575 Scale: 1:20,000 Date: 1984
Author: Questor Surveys Ltd.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Page: 1262-1265 Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
Article - A gravity survey in the Iroquois Falls-Lake Abitibi area, District of Cochrane
Publication Number: MP137.074 Page: 411-14 Date: 1997
Author: Gupta V.K., Johnstone R.M.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology and petrogenesis of the Archean Abitibi belt in the Kirkland Lake area, Ontario
Publication Number: MP123 Date: 1985
Author: Jensen L.S., Langford F.F.
Publisher Name: Ontario Geological Survey
Location:
Article - Precambrian geology of Coulson, Warden, and Milligan townships, Black River-Matheson (BRIM) area, District of Cochrane
Publication Number: MP132.079 Date: 1997
Author: Johnstone R.M.
Publisher Name: Ontario Geological Survey
Location:
Part - Abitibi-Night Hawk gold area, District of Timiskaming
Publication Number: ARV28-02.001 Date: 1998
Author: Knight C.W., Burrows A.G., Hopkins P.E., Parsons A.L.
Publisher Name: Ontario Bureau of Mines
Location:
Article - Quaternary geology and geochemical exploration in the Matheson area
Publication Number: MP140.294 Date: 1997
Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.
Publisher Name: Ontario Geological Survey
Location:
Article - Reconnaissance till sampling program, Matheson-Lake Abitibi area, District of Cochrane
Publication Number: MP141.081 Date: 1997
Author: Steele K.G.
Publisher Name: Ontario Geological Survey
Location:
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