Ontario Geological Survey
Permanent Link to this Record:
MDI31M05NE00199
| Record Name(s) | Pretty Lake - 1980 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Oct-28 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Lead, Zinc
Township or Area: Coleman
Latitude: 47° 23' 52.95" Longitude: -79° 42' 42.37"
UTM Zone: 17 Easting: 597208 Northing: 5250203 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05NE
Point Location Description: Shaft
Location Method: Conversion from MDI
1971-1972: Vangulf Exploration Co. carried out a ground geophysical survey (magnetometer, electromagnetic, IP), diamond drilling. 1973: St. Joseph Exploration Ltd. carried out a ground geophysical survey (magnetometer). 1994: Falconbridge Exploration Ltd. carried out open cutting and bedrock mapping. 1995: Falconbridge Exploration Ltd. carried out a ground geophysical survey (magnetometer, electromagnetic). 2008: The Legends of Cobalt carried out an airborne geophysical survey (magnetometer, electromagnetic).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.2946 | 31M05NE0416 | 31M05NE0416 |
| 2.1163 | 31M05NE0081 | 31M05NE0081 |
| W9480.00447 / 2.15607 | 31M05NE0103 | 31M05NE0103 |
| W9580.00779 / 2.16290 | 31M05NE0126 | 31M05NE0126 |
| W0880.00803 / 2.37767 | 20000002829 | 20000002829 |
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz-Calcite | Contains |
|---|---|---|---|---|
| Mafic pillowed flow | 2 | Pillow | Near | |
| Diabase | 3 | Keweenawan Diabase Dike | Near |
Oct 30, 2020 (Sheree Hinz) - Pillow basalt are cut by SSW Keweenawan diabase dike 200 ft wide. Quartz-calcite veins occur within mafic rocks.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Gangue | ||||
| 2 | Pyrite | Economic | Gangue |
Oct 30, 2020 (Sheree Hinz) - Quartz-calcite veins contain sulfide mineralization. Semi-massive to massive pyrite occurs in the dump beside the old shaft, with associated chert and interpillow mineralized mafic volcanics. Pillowed mafic volcanics on both sides of the chert horizon contain 1-5% pyrite and pyrrhotite stringers.
Map - Cobalt silver area, northern sheet, Timiskaming District
Publication Number: M2050 Scale: 1:12,000 Date: 1997
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on parts of Coleman Township and Gillies Limit to the south and southwest of Cobalt
Publication Number: PR1960-03 Scale: Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Scale: Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office