Ontario Geological Survey
Permanent Link to this Record:
MDI52A10SW00032
| Record Name(s) | W. Hayne - 1988, Ram - 1986 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-05 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Zinc, Silver
Secondary Commodities: Lead, Arsenic
Township or Area: Macgregor
Latitude: 48° 34' 55.61" Longitude: -88° 48' 14.66"
UTM Zone: 16 Easting: 366948 Northing: 5382574 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A10SW
Point Location Description: Precise
Location Method: Conversion from MDI
1986: Esso Minerals Canada carried out geological mapping and soil sampling. 1988: W. Hayne drilled 1 DDH totalling 32.0 m. 1992: W. Hayne carried out prospecting and drilled 1 DDH totaling 36 m. 2011: China Metallurgical Exploration Corp. carried out prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.49608 | 20000006873 | 20000006873 |
| 2.10035 | 52A10SW0005 | 52A10SW0005 |
| 13 | 52A10SW0006 | 52A10SW0006 |
| OP92-424 | 52H07SW0005 | 52H07SW0005 |
Province: Southern
Formation Group: Animikie Group
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Host |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | Contains | ||
| Lamprophyre-Unsubdivided | 3 | |||
| Intermediate lava flow-unsubdivided | 4 | Dacite |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Arsenopyrite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Sphalerite | Economic | Ore | ||||
| 4 | Chalcopyrite | Economic | Ore |
Mar 24, 2020 (Therese Pettigrew) - The showing consists of narrow sulphide-bearing veins, probably occupying shear zones in a dark siliceous, metasedimentary rock. The veins carry arsenopyrite, pyrite, zinc, and gold. Sample JFS-64-7 collected by OGS staff member J. Scott assayed 1.06 oz/t Au, 1.40 oz/t Ag, 0.30% Zn, 0.09% Pb, and 3.10% As from a gossanous shear zone at Highway 11/17. Sample JFS-64-8 assayed 0.53 oz/t Au, 0.55 oz/t Ag, 2.36% Zn, 0.08% Pb, and 3.0% As from a vein at Highway 11/17 (Scott, 1986). Sample L37-05-01, located at NAD83 UTM Zone 16, 366564 mE, 5382182 mN returned 1.5 oz/t Ag from a siltsone with very good quartz crystallization (Assessment report 20000006873). In the “Driveway Zone”, 15 metres south of the quarry, a one metre wide pyritic zone oriented at 165/80 was located within an intermediate tuff. A grab sample assayed 0.02 oz Au/T (0.62 g/t Au). The zone, weathers an orange-tan colour and contains several small quartz veins and 3-5% pyrite. The rock surrounding the joints and veins in the zone appears bleached. At the “Highway Outcrop”, several 5-50cm wide silicified and sericitized zones within joint sets at various orientations contain up to 10% pyrite, trace sphalerite and chalcopyrite, and locally massive arsenopyrite. The massive arsenopyrite occurs in one vein and is typically 3-8cm wide. Samples containing massive arsenopyrite assayed up to 0.40 oz Au/T. The zones are highly weathered and poorly defined. The highest assays are from the zone closest to a lamprophyre dike. On the south side of the highway, a sample containing 10% pyrite in a quartz vein also spatially related to a lamprophyre dike, assayed 0.04 oz Au/T. Several samples of quartz veins within a lamprophyre dike assayed trace Au/T (Assessment report 52A10SW0005). DDH 1 returned up to 532 ppb Au over 2 feet (0.61 m) from a dacite with intense buff brown sericite alteration with 30-60% carbonate and up to 20% pyrite (Assessment report 52H07SW0005). Samples taken from <2 cm wide siliceous veins cross-cutting mafic volcanic rocks by prospector W. Hayne yielded up to 0.15 oz/t Au, 15.2% Zn, and traces of arsenopyrite. The veins are loctaed on the northwestern side of Highway 11-17 near the junction with Nelson Road (Scott, 1984).
Article - MacGregor Township, District of Thunder Bay
Publication Number: MP119.008 Scale: Date: 1997
Author: Scott J.F.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology, MacGregor Township, west half, District of Thunder Bay
Publication Number: P2984 Scale: 1:15,840 Date: 1986
Author: Scott J.F., Sequin J.M.
Publisher Name: Ontario Geological Survey
Location:
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