Ontario Geological Survey
Permanent Link to this Record:
MDI42A07NW00017
| Record Name(s) | Leader Mining DDH ML-3-97 - 1997 |
|---|---|
| Related Record Type | Simple |
| Record Status | Occurrence |
| Date Created | 2002-Aug-30 |
| Date Last Modified | 2022-Jan-05 |
| Created By | G Seim |
| Revised By | A Wilson |
Primary Commodities: Gold
Township or Area: Macklem
Latitude: 48° 28' 2.48" Longitude: -80° 50' 56.68"
UTM Zone: 17 Easting: 511156 Northing: 5368258 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A07NW
Point Location Description: collar of DDH ML-3-97
Location Method: Based on Assessment
Access Description: About 8 km south of Highway 101 on the Gibson Lake road there is an overgorwn tote road lead west and south to the are of the diamond drilling.
1997: Leader Mining International Inc. - DD-3-1129 m
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-4069 / 2.18643 | 42A07NW2010 | 42A07NW2010 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Basalt Flows And Fragmentals | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz-Tourmaline-Chlorite-Carbonate-Sulphide | Host |
Jun 25, 2013 (G Seim) - The hole penetrated through 61 m of overburden before collaring in a sequence of sericite and carbonate altered mafic metavolcanic flows and related fragmental rocks. The intensity of the sericite and of the carbonate alteration varies from weak to strong within the hole.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 2 | Pyrite | Economic | Ore | ||||
| 1 | Tourmaline | Economic | Gangue | ||||
| Sericite | Alteration | Sericitization | 1 | Medium | Replacement | ||
| Carbonate | Alteration | Carbonatization | 2 | Medium | Replacement |
Jun 25, 2013 (A Wilson) - Three intervals within the hole returned occurrence grade gold values. The first from 79.00m to 80.60 m averaged 0.446 g/t Au with the interval from 80.00 m to 80.60 m returning 0.528 g/t Au. This latter interval contained a 12 cm wide fractured quartz vein with 5 % tourmaline and minor carbonate. The 2nd occurrence-grade interval, from 124.00 m to 124.85 m (0.85 m) returned 0.994 g/t Au and 1.265 g/t Au on re-assay. The zone contained a 35 cm quartz-tourmaline-chlorite- carbonate vein with minor pyrite. The 3rd interval, from 285.70 m to 287.00 m ( 1.3 m) returned 0.789 g/t Au and 0.766 g/t Au on re-assay. Significant assays from ML-1-97 returned 0.542 oz/t Au over 0.75 m and 0.012 oz/t Au over 1.15 m within mafic metavolcanic rocks.
MonoMap - Geology of the Night Hawk Lake area, District of Cochrane
Publication Number: R096 Scale: Date: 1971
Author: Leahy E.J.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Map - Night Hawk Lake area, Cochrane District
Publication Number: M2222 Scale: 1:31,680 Date: 1971
Author: Leahy E.J.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Map - Geological Compilation of the Lake Abitibi Area, Abitibi Greenstone Belt
Publication Number: P3398 Scale: 1:100,000 Date: 1999
Author: Ayer J.A., Berger B.R., Trowell N.F.
Publisher Name: Ontario Geological Survey
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