Ontario Geological Survey
Permanent Link to this Record:
MDI42A14SE00042
| Record Name(s) | Homestake T91-03 - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1999-Jun-16 |
| Date Last Modified | 2022-Nov-14 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Tully
Latitude: 48° 45' 28.32" Longitude: -81° 8' 11.89"
UTM Zone: 17 Easting: 489957.668 Northing: 5400548.613 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A14SE
Point Location Description: Point plotted on OBM topo map from information contained in Assessment File T-3338.
Location Method: Based on Assessment
Access Description: Access to northeastern and central Tully Twp is via the Ice Chest Lake road (gravel) to a point approximately 1 Km north of Sawmill Lake. From there the OBM map indicates a road leading west to the west side of the Buskegau River. Access to the remainder of the area is via bush trails.
Exploration activity by Homestake in 1991 focussed on a systematic follow-up of the gold intersection reported in DDH TU-1-3-70 by Hollinger Mines, and subsequent gold values by Esso Minerals (see MDI 42A14SE00029). Homestake DDH T91-03 was drilled approximately 200 metres to the southeast of the discovery hole and intersected weakly anomalous gold values which returned a weighted average grade of 203 ppb Au / 13.2 metres (77.5-90.7 m). These values were hosted by what the Summary Log describes as Graphitic Argillite/Breccia (Fault), Coarse Volcanoclastic/Fragmental, and Mineralized, Qtz-carb Veined Volcanoclastic/Fragmental. Additional notations of alteration and quartz veining were present further down-hole, but contained no siginificant gold values. Traces of arsenopyrite were noted in the mineralized sections, along with pyrite (to 5% diss/stringer), po-cpy-sph-fuc (traces).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-3338, OM91-082 | 42A14SE2001 | 42A14SE2001 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Kidd-Munro
Geological Age: Neoarchean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
| Rock Type | Rank | Composition | Texture | Relationship | Peridotite | 1 | Peridotite | Near |
|---|---|---|---|---|
| Gabbro | 2 | Gabbro | Near | |
| Mafic lava flow-unsubdivided | 3 | Brx, Frag | Near | |
| Mafic lava flow-unsubdivided | 4 | Leucox Basalt | Variolitic | Near |
| Siltstone | 5 | Graphitic Argillite | Host | |
| Ultramafic-Unsubdivided | 7 | Talc, Serp, Chl | Near | |
| Felsic lava flow-unsubdivided | 8 | Coarse Fragmental | Near |
Map - Timmins data series, Tully Township, District of Cochrane
Publication Number: P0699 Scale: 1:15,840 Date: 1997
Author: Hunt D.S., Richard J.A., Carey E.R.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office