Ontario Geological Survey
Permanent Link to this Record:
MDI52A05SW00022
| Record Name(s) | Silver Falls - 1885, Mining Location R 110 - 1885 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Mar-05 |
| Date Last Modified | 2022-May-30 |
| Created By | |
| Revised By |
Primary Commodities: Silver
Secondary Commodities: Zinc, Fluorite, Lead
Township or Area: Lybster
Latitude: 48° 15' 12.61" Longitude: -89° 49' 20.11"
UTM Zone: 16 Easting: 290515.59 Northing: 5348327.52 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A04NW, 52A05SW
Point Location Description: Transfer
Location Method: Conversion from MDI
Access Description: Proceed west on Hwy 11-17 to Hwy 588. Turn left onto Hwy 588 and proceed to the village of Nolalu. At Nolalu, turn left over the bridge and proceed down gravel road marked as Second Side Road for 5.0 km. Turn right at the intersection and proceed 1.7 km to a Y intersection. Follow the right brand for 0.8 km to L-214 road on right and park. Proceed up road for approx. 380 m to cabin. Shaft is 10 m at 320 degrees from cabin.
1885: vein was discovered by J.C. Hasking. 1886: Two shafts were sunk on the property. One near the creek was sunk to a depth of 6.1 m, and then abandoned due to water. No. 2 was sunk into the side of the bluff, to a depth of 16.8 m. A 4.6 m crosscut was started and then abandoned due to water. Some surface stripping was done on the outcrop of the vein. 1890: a new shaft was being sunk 304.8 m from the old shaft.
Province: Southern
Formation Group: Animikie Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Adjacent |
|---|---|---|---|---|
| Vein | 2 | Quartz And Calcite | Host |
Feb 07, 2018 (Therese Pettigrew) - Steeply inclined beds of Animikie iron formation are exposed in the bed of Silver Falls creek for a distance of 400 feet across their strike. Several branching veinlets of quartz up to an inch in width are exposed at intervals of a few feet or yards throughout this distance. The general strike of these is southeasterly within a few degrees of the direction of strike of the beds. Their dip is nearly vertical. Thirteen hundred feet south of the workings, there is an outcrop of flat-lying Animikie iron formation. A dyke of fine-grained diabase about 100 feet wide outcrops at Silver Falls, trends southeast, and lies between the outcrops of steeply inclined Animikie iron formation to the northeast and the outcrops of flat-laying beds to the south (Tanton, 1931).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Argentite | Economic | Ore | ||||
| 2 | Calcite | Economic | Ore | ||||
| 3 | Fluorite | Economic | Ore | ||||
| 4 | Galena | Economic | Ore | ||||
| 5 | Pyrite | Economic | Ore | ||||
| 6 | Sphalerite | Economic | Ore |
Feb 07, 2018 (Therese Pettigrew) - A composite vein crosses Silver Falls creek 800 feet northeast of the falls. The vein is exposed for part of its width in the bed of Silver Falls creek, which is here approximately 20 feet wide. It occupies a fracture zone 15 feet wide in cherty magnetite-taconite, dipping 50 degrees northeast. The aggregate width of vein material measured across the fracture zone is about 4 feet. The composite vein strikes south 55 degrees east and dips 75 degrees southwest. The vein material consists of quartz, amethyst, white calcite, purple fluorite, barite, and, locally, pink dolomite. Galena, chalcopyrite, and pyrite are sparingly disseminated through parts of the vein (Tanton, 1931).
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
Book - Fort William and Port Arthur, and Thunder Cape Map-area, Thunder Bay District, Ontario; Geological Survey of Canada, Memoir 167
Publication Number: GSC Memoir 167 Page: 121 Date: 1931
Author: Tanton, T.L.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100799
File - Hazard files, Thunder Bay Mineral department
Publication Number: Date: 1996
Author:
Publisher Name:
Location: Thunder Bay RGP
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