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Ontario Geological Survey
Permanent Link to this Record:
MDI42E11NW00005
| Record Name(s) | Patsy Lake - 1999 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2000-Sep-11 |
| Date Last Modified | 2022-Jan-18 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Legault
Latitude: 49° 40' 31.85" Longitude: -87° 25' 40.76"
UTM Zone: 16 Easting: 469121.369 Northing: 5502641.951 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E11NW
Point Location Description: At site of sample 99MLT-1.
Location Method: Field Visit with GPS
Access Description: Travel ~8 km east of Jellicoe, Ontario on Highway 11 to the Leopard Lake road. Proceed south on this road for approx. 2.4 km to an easterly bush road for approx. 1.3 km where the road crosses an outcrop of sheared greywacke that is intruded by two east-trending felsic dikes. A series of outcrops extend for ~100 m to the southwest where sample 99MLT-1 was collected.
There is no record of exploration work in the immediate vicinity of this gold occurrence. However, Mealey and Koivisto flew an AM and AEM survey over their Legault Tp and South of Legault claims in June of 1987 (AFO 2.10253). A distinct mag low with no conductivity is depicted on their map on strike to the southwest with this occurrence.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.10253 | 42E11NW0057 | 42E11NW0057 |
Province: Superior
Subprovince: Wabigoon
Terrane: Eastern Wabigoon
Belt: Beardmore-Geraldton
Geological Age: Archean
Dec 07, 2005 (Mark O'Brien) - The south portion of Legault Township is underlain by greywacke and discontinuous iron formation, which have been intruded by east-trending diorite sills and north to northeast-trending diabase dikes (Mackasey 1973). Two east-trending felsic dikes are depicted on O.G.S. preliminary map P1191 at the first north bend in the Patsy Lake road. A grab sample that assayed 0.03 ounce per ton gold was collected by OGS staff from an outcrop 700 m east of Patsy Lake, in south-central Legault Township. This sample was a weakly foliated and silicified greywacke with approximately 1% disseminated, fine-grained pyrite. It is worth noting that the sample site, which is currently open to staking, is in the vicinity of a low magnetic anomaly (OGS map 81323), adjacent to a flexure in a regional lineament (Mackasey 1973), and is without previous, recorded exploration work.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Gold | Unknown | .03 | oz/t | |||
| Silver | Unknown | ppm | BDL |
| Rank | Classification |
|---|---|
| 1 | Epigenetic |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 70 |
Date: Sep 11, 2000
Geologist: Mark O'Brien
Notes: The occurrence was visited by Mark O'Brien on September 28, 1999 during a regional reconnaissance of the road network between Highway 11 and the Parks Lake area. A grab sample that assayed 0.03 ounce per ton gold was collected from an outcrop 700 m east of Patsy Lake, in south-central Legault Township. This sample was a weakly foliated and silicified greywacke with approximately 1% disseminated, fine-grained pyrite.
Map - Geological series, Legault Township, District of Thunder Bay
Publication Number: P1191 Scale: 1:15,840 Date: 1976
Author: Mackasey W.O., Edwards G.R., Cape D.F.
Publisher Name: Ontario Division of Mines
Location:
Mono - Report of Activities 1999, Resident Geologist Program, Thunder Bay North Regional Resident Geologist Report: Thunder Bay North-Sioux Lookout Districts
Publication Number: OFR6004 Scale: Date: 2000
Author: Mason J.K., Farrow D.G., Seim G.Wm., White G.D., O'Brien M.S., Walden A., Komar C.L.
Publisher Name: Ontario Geological Survey
Location:
Map - Geophysical/geochemical series, Tashota-Geraldton-Longlac area, airborne electromagnetic survey, total intensity magnetic survey, District of Thunder Bay
Publication Number: M81323 Scale: 1:20,000 Date: 1989
Author: Aerodat Ltd.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office