Ontario Geological Survey
Permanent Link to this Record:
MDI42A10SE00071
| Record Name(s) | St Andrew East Zone - 1985, Hollinger-Argus DDH S1A-1-80 - 1980 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 2002-Jun-06 |
| Date Last Modified | 2023-Apr-14 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Stock
Latitude: 48° 33' 6.89" Longitude: -80° 44' 27.87"
UTM Zone: 17 Easting: 519107.82 Northing: 5377678.62 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A10SE
Point Location Description: Drill collar for Hollinger Argus DDH S1A-1-80
Location Method: Based on Assessment
Access Description: The site is accessible by driving north along the mine access road for a distance of 1.5 km from highway 101. This road joins the highway approximately 5.2 km west of Shillington. The East Zone was mined at depth and is located approximately 1500 feet east of the main underground workings.
1980: Hollinger Argus Ltd. - diamond drilling, DD-4-3890 ft., assays. 1988: St. Andrew Goldfields - property reacquired as a result of non-participation by Esso Minerals Canada Ltd. 1989: St. Andrew Goldfields - DD-14-15,941 m. 1998-99: St. Andrew Goldfields - DD-3-1848 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-1960/ 15 | 42A10SW0131 | 42A10SW0131 |
| T-4183/2.19470 | 42A10SE2006 | 42A10SE2006 |
| T-4192/2.19471 | 42A10SE2007 | 42A10SE2007 |
| T-4182/2.19469 | 42A10SE2009 | 42A10SE2009 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Stoughton-Roquemaure
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Ultramafic lava flow-unsubdivided | 1 | Carbonatized Komatiite | Near |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Basalt | Near | |
| Vein | 3 | Quartz-Carbonate | Host |
Nov 30, 2015 (A Wilson) - The deposit consists of multiple mineralized zones within mafic and ultramafic rocks between the ENE trending Destor-Porcupine Fault and a subparallel diabase dike within the fault zone. The fault zone here is up to 150 m wide and is represented by sinuous, bifurcating faults which dip moderately to steeply to the south. The Stoughton-Roquemaure Group consists of massive and pillowed mafic flows and minor peridotitic komatiite flows. The strata are intruded by felsic and mafic dikes. All rocks, with the exception of the dikes, are moderately to strongly carbonatized and sericitized with local zones of silicification.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| Ankerite | Alteration | Carbonatization | 1 | Medium | Replacement | ||
| Fuchsite | Alteration | Carbonatization | 2 | Weak | Replacement |
Nov 30, 2015 (A Wilson) - Diamond drilling completed by Hollinger Argus returned values up to 0.045 oz./t Au over 15 ft. Diamond drilling completed by Noranda in 1987 returned values of 1.2 oz./t Au over 0.25 m; 0.012 oz./t Au over 0.5 m and 1.81 oz./t Au over 0.5 m. In the East and West Zones, gold occurs as free grains in gray or green carbonate veins (quartz-carbonate-ankerite +/- green fuchsite veins) and breccia that is typical of the Timmins gold camp. Surface diamond drilling completed in 1998 by St Andrews returned assays up to 1.19 g/t Au over 1.4 m in porphyry. The best assays returned 3.455 g/t Au over 1.45 m; 6.43 g/t Au over 0.9 m.
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 396 | 15 | 152 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| East Zone | 1993 | Possible | 589670 | St Andrew Goldfields 1993 Annual Report, p. 6 | Gold 0.081 Ounce per Ton | |
| East Zone | 1989 | Possible | 589550 | St Andrew Goldfields 1989 Annual Report, p. 6 | Gold 2.74 Grams per Tonne |
Folio - Stock Township, District of Cochrane
Publication Number: GDIF403 Date: 1997
Author: Kirkland Lake RGO
Publisher Name: Ontario Geological Survey
Location:
Map - Geology of Stock Township
Publication Number: P3347 Scale: 1:20,000 Date: 1995
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
Location:
Core - Drill Core Library
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGO
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
Location:
Map - Matheson-Black sheet, District of Cochrane
Publication Number: P0119 Scale: 1:63,360 Date: 1997
Author: Ginn R.M., Savage W.S., Leahy E.J.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - The geology of the northwestern Black River-Matheson area, District of Cochrane
Publication Number: OFR5785 Page: 246-247 Date: 1991
Author: Johnstone R.M.
Publisher Name: Ontario Geological Survey
Location:
Map - Stock Township
Publication Number: P0038 Scale: 1:15,840 Date: 1997
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Iroquois Falls-Lake Abitibi sheet, District of Cochrane
Publication Number: P0140 Scale: 1:126,720 Date: 1997
Author: Savage W.S., Thomson R., Fenwick K.G.
Publisher Name: Ontario Dept. of Mines
Location:
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For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office