Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000000518| Deposit Name(s) | Olp Area No. 9 Se - 1988 |
|---|---|
| Deposit Status | occurrence |
| Date Created | 2008-Mar-18 |
| Date Last Modified | 2019-Aug-28 |
| Created By | M A Puumala |
| Revised By | T Pettigrew |
Primary Commodities: gold
Township or Area: Skinner Lake Area
Latitude: 52° 40' 45.4" Longitude: -90° 23' 10"
UTM Zone: 15 Easting: 676700 Northing: 5839800 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 53B09NW
Point Location Description: Sample 77713 on Assessment file 53B09NW0004 map
Location Method: data compilation
1981-82: Geophysical, geological and geochemical surveys, trenching and prospecting by 493217 Ontario Ltd. 1985-88: Geological mapping, prospecting, trenching and diamond drilling by Van Horne Gold Explorations Inc., Oracle Resources Ltd. and Power Explorations Inc.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.11399 | 53B09NW0004 | Open |
| 53B09NW0014 | 53B09NW0017 | Open |
| 53B09NW0027 | 53B09NW0008 | Open |
Province: Superior
Subprovince: Sachigo
Belt: North Caribou
Terrane: North Caribou
Geological Age: Mesoarchean
Tectonic Assemblage: McGruer - North Rim Unit
| Structure Name | Scale | Strike | Dip | Trend | Plunge |
|---|---|---|---|---|---|
| Mineralized Zone | local | 340 |
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| mafic metavolcanics | 1 | contains | ||
| metasedimentary | 2 | argillite | near | |
| chert | 2 | near | ||
| iron formation | 4 | near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore | ||||
| limonite | alteration | hematization | 1 | unknown | disseminated |
03/18/2008 (M A Puumala) - This occurrence is described by Elliott and Corkery (1988; Assessment report 53B09NW0004) as a 1.22 m wide exposure of limonitic material with 1% pyrite that provided a grab sample assay of 690 ppb Au. It is hosted within the mafic metavolcanic rock-dominated North Rim unit of the McGruer assemblage (Thurston, Osmani and Stone 1991), near the eastern boundary of the North Caribou greenstone belt. The occurrence is coincident with a strong 1600 m long north-northwest-trending VLF-EM conductor that also coincides with a gossaned band of chert horizons, fine-grained argillaceous sediments and possible lean iron formation (mineralized with trace arsenopyrite and pyrrhotite over a width of 9 m) that is exposed at surface 35 m to the north-northwest (Elliott and Corkery 1988).
| Rank | Classification |
|---|---|
| 1 | lode (gold) |
| Rank | Characteristic |
|---|---|
| 1 | sheared |
Book - Northwestern Superior Province: Review and Terrane Analysis, in Geology of Ontario; Ontario Geological Survey, Special Volume 4, Part 1, p. 81-142.
Publication Number: SV04-01 Date: 1991
Author: Thurston, P.C., Osmani, I.A. and Stone, D.
Publisher Name: OGS
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