Ontario Geological Survey
Permanent Link to this Record:
MDI53B09NW00006
| Record Name(s) | OLP - Area No. 4 - 1985 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1995-May-23 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Skinner Lake Area
Latitude: 52° 41' 20.65" Longitude: -90° 26' 37.59"
UTM Zone: 15 Easting: 672763.96 Northing: 5840749.03 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 53B09NW
Point Location Description: Sample 23349 on map in Assessment report 53B09NW0004
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 |
|---|---|---|
| 16 | 53B09NW0007 | 53B09NW0007 |
| 2.11399 | 53B09NW0004 | 53B09NW0004 |
| 53B09NW0014 | 53B09NW0017 | 53B09NW0017 |
| 53B09NW0027 | 53B09NW0008 | 53B09NW0008 |
Province: Superior
Subprovince: Berens River
Terrane: North Caribou
Domain: North Caribou Core
Belt: North Caribou
Geological Age: Mesoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Contains |
|---|---|---|---|---|
| Chert | 2 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Arsenopyrite | Economic | Ore | ||||
| Carbonate | Alteration | Carbonatization | 1 | Unknown | Disseminated | ||
| Silica | Alteration | Silicification | 2 | Unknown | Disseminated | ||
| Limonite | Alteration | Hematization | 3 | Unknown | Disseminated |
Mar 18, 2008 (Mark Puumala) - The OLP Area No. 4 occurrence is hosted within the mafic metavolcanic rock-dominated South Rim unit of the McGruer assemblage (Thurston, Osmani and Stone 1991). The occurrence was described by Elliott and Corkery (1988) as a small outcrop that exposes mafic tuff and beds of biotite-rich, dirty chert with local narrow bands of white chert. These rocks have been variably sheared, silicified and carbonatized, and are extremely limonitic. The occurrence is located immediately to the west of a strong north-northwest-trending VLF-EM conductor that is oriented parallel to shearing (Corkery and Elliott 1988). Mineralization consists of trace to 1% arsenopyrite and chalcopyrite. The rocks are also reported to contain small-scale steeply-plunging (both to the north and south) z-folds. The most significant assay reported from this occurrence was a surface grab sample result of 3315 ppb Au (Elliott and Corkery 1988). A single diamond drill hole (OP-87-A-47) was advanced by Power Explorations to test this occurrence at depth. The most notable assay reported from this drill hole was 0.013 oz/ton Au over 1.52 m from mafic metavolcanics containing abundant quartz/calcite veinlets (Corkery and Elliott 1988).
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
Article - Northwestern Superior province: review and terrane analysis
Publication Number: SV04-01.005 Scale: Date: 1997
Author: Thurston P.C., Osmani I.A., Stone D.
Publisher Name: Ontario Geological Survey
Location:
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