Ontario Geological Survey
Permanent Link to this Record:
MDI000000000421
| Record Name(s) | Pashkokogan River - 1988 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2007-Dec-19 |
| Date Last Modified | 2023-Feb-09 |
| Created By | |
| Revised By |
Primary Commodities: Nickel, Copper
Township or Area: Caron Lake Area
Latitude: 51° 2' 20.9" Longitude: -90° 12' 51.58"
UTM Zone: 15 Easting: 695289 Northing: 5657870 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O01SE
Point Location Description: Pit 2 location from Assessment report 20000020537
Location Method: Data Compilation
1972-73: Geophysical surveys and diamond drilling by Falconbridge Nickel. 1987-88: Geological mapping and geophysical surveys by Kerr Addison Mines. 2004: Geophysics, prospecting and diamond drilling by Bell Resources Corporation and Stares Contracting. 2022: A. Onchulenko and P. Gehrels carried out prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52O01SE0011B1 | 52O01SE0008 | 52O01SE0008 |
| 2.11149 | 52O01SE0003 | 52O01SE0003 |
| 4977 | 20000020537 | 20000020537 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Lake St. Joseph
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Host |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Pentlandite | Economic | Ore |
Dec 20, 2007 (Mark Puumala) - This occurrence is reported by Lewis (1988) to be exposed in surface trenches approximately 1.5 km north of the mouth of the Pashkokogan River. The occurrence is found in a small gabbroic body that is mineralized with 2 to 3% chalcopyrite, pentlandite, pyrite and pyrrhotite. Lewis (1988) reported that Falconbridge Nickel Mines also intersected this occurrence in four diamond drill holes that were drilled to test an approximately 250 m long structure represented by coincident magnetic and electromagnetic anomalies. The diamond drill holes are reported by Lewis (1988) to have intersected a mineralized zone in metagabbro that contained 0.3% Cu and 0.3% Ni over a width of up to 18 m. However, the Falconbridge diamond drill hole logs that were filed for assessment (AFRI# 52O01SE0008) do not include these assay results. The drill hole logs indicate that the mineralized zone consists of disseminated, stringer and blebby sulphides (pyrrhotite, pentlandite and chalcopyrite). The reported sulphide concentrations in the mineralized zones are variable (trace to 40% with some massive zones a few centimetres wide), with typical sulphide concentrations being in the range of 5 to 10%. In a news release dated April 21, 2004, Bell Resources Corporation reported that the results of an airborne electromagnetic and magnetic survey indicated that the strength of a conductive body associated with the occurrence lies at least 75 m below the ground surface. Diamond drilling was planned to test this geophysical target at depths between 100-125 m. However, no results from this drilling program were filed for assessment.
Feb 09, 2023 (Therese Pettigrew) - A. Onchulenko and P. Gehrels reported the following locations: 1) edge of the Intrusion at 15 U 695332 5657820. They noted mineralization here and sampled it. The Intrusion is very rusty on the outside and seems to be a coarse gabbro very similar to the MCR Diabase Intrusions found in the Thunder Bay area. 2) first trench at 15 U 695289 5657870. At this location it is very rusty everywhere rock can be seen and the trench is exposed for about 14m and fairly well mineralized all along its length. 3) Pit #2 at 15 U 695259 5657881. It was very similar to trench one but only about 8 m long from N to S. Very similar mineralization here. 4) pit 3 at 15U 695217 5657880. 5) pit 4 at 15 U 695212 5657880. Both pits 3 and 4 were very similar to the previous pits with similar mineralization. 6) pit 5 at 15 U 6951 60 5657873 had the best mineralization. 7) pit #6 at 15 U 695127 5657867. The overall outcrop was close to 300 m in length east to west and about 130 m wide south to north (Assessment report 20000020537).
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
| Rank | Characteristic |
|---|---|
| 2 | Disseminated |
| 1 | Intrusive |
Map - Geological series, Precambrian geology, Lake St. Joseph area, east half, districts of Thunder Bay and Kenora (Patricia Portion)
Publication Number: P3051 Scale: 1:50,000 Date: 1987
Author: Stott G.M., Kay S.V., Sanborn M.
Publisher Name: Ontario Geological Survey
Location:
Book - News Release re: Initiation of diamond drill program on the Falcon copper-nickel property, dated April 21, 2004.
Publication Number: Date:
Author: Bell Resources Corporation
Publisher Name:
Location:
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