Ontario Geological Survey
Permanent Link to this Record:
MDI42A10SW00070
| Record Name(s) | Echo Bay DDH 96-318 - 1996 |
|---|---|
| Related Record Type | Simple |
| Record Status | Occurrence |
| Date Created | 2002-Aug-26 |
| Date Last Modified | 2022-Jan-05 |
| Created By | G Seim |
| Revised By | A Wilson |
Primary Commodities: Gold
Township or Area: Macklem
Latitude: 48° 32' 5.22" Longitude: -80° 53' 16.9"
UTM Zone: 17 Easting: 508266 Northing: 5375748 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A10SW
Point Location Description: collar of Echo Bay DDH 96-318
Location Method: Based on Assessment
Access Description: Tote trails lead south fron Highway 101 near the junction of Highway 67 to the occurrence.
1996: Echo Bay Mines Lid. – DD-1-264 m
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-3807/2.17264 | 42A10SW0070 | 42A10SW0070 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Ultramafic Schist | 1 | Talc-Chlorite | Schistose | Hanging Wall |
|---|---|---|---|---|
| Mafic massive flow | 2 | Massive | Host |
Jun 25, 2013 (A Wilson) - Diamond drilling intersected a thick sequence of talc-chlorite schist which contain some quartz-carbonate veins and stringers. Talc-rich veins also were observed. Some local remnant spinifex textures were observed. Massive mafic metavolcanics underlie the ultramafics and contain little or no mineralization. The contacts between the two rock types are gradational and are marked by talc and quartz veining. The drill hole terminated in a massive, homogeneous mafic dike.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| Sericite | Alteration | Sericitization | 1 | Strong | Replacement | ||
| Talc | Alteration | Steatization | 2 | Strong | Replacement | ||
| Chlorite | Alteration | Steatization | 3 | Strong | Replacement |
Jun 25, 2013 (A Wilson) - The interval from 257.5 m to 258.7 m (1.2 m) within the massive mafic volcanic rock returned 800 ppb Au and the following interval from 258.7 m to 260.0 m ( 1.3 m) returned 4010 ppb Au.
Jun 25, 2013 (G Seim) - Sericite and disseminated pyrite are associated with the gold-bearing rock.
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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For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office