Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52A05NE00009

Record: MDI52A05NE00009

General

Mineral Record Identification
Record Name(s) Younge-Walsh - 1915, Lundmark Prospect - 1978, Conmee Home - 1991
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1979-Jul-24
Date Last Modified 2022-Mar-04
Created By
Revised By

Commodities

Primary Commodities: Molybdenum

Secondary Commodities: Copper



Location

Township or Area: Conmee

Latitude: 48° 26' 33.31"    Longitude: -89° 37' 15.03"

UTM Zone: 16    Easting: 306183   Northing: 5368812    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52A05NE

Point Location Description: Location of sample collected by OGS staff during field visit

Location Method: Field Visit

Access Description: The property is located on Lot 3, Concession 2, Conmee Township, District of Thunder Bay. Access is by a the Holland concession road, 1.1 kilometres from Highway 11-17. The main showing is visible to the north from the road.



Exploration History

1915: Sinking of a 50 foot shaft with 18 feet of crosscutting (now filled in) along with extensive trenching and test pitting. 1918: 270 pound sample was tested at the Mines Branch in Ottawa. This claim package was TB-3 which became the first patented claim in the Thunder Bay Mining Division. 1968: North Coldstream Mines dewatered the shaft and mapped and sampled. 1972: The shaft was backfilled by the township using the dump material. 1977: Noranda completed a 2.4 kilometre dipole-dipole survey IP survey. 1978: Noranda completed 6.7 kilometres of VLF and magnetometer surveys plus geological mapping. 1990: Mathew Stewardson prospected and sampled. 1991: Mathew Stewardson completed 4 kilometres of VLF and magnetometer surveys. 2004: Gary Maxwell completed overburden stripping and sampling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.14184 52A05NE0009 52A05NE0009
2.10381 52A06NW0003 52A06NW0003
2.2769 52A05NE0016 52A05NE0016
2.31684 20000001183 20000001183
2.14255 52A05NE0007 52A05NE0007
2.2368 52A06NW0004 52A06NW0004

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Shebandowan

Geological Age: Archean  



Geology Comments

Sep 19, 2016 (Andrew Tims) - Quartz veins within syenite contain 1-2% Mo as fracture fill and seams. Minor Py is present.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Gabbro 1 Leucogabbro Adjacent
Vein 2 Quartz Host

Lithology Comments

Jun 25, 2018 (Therese Pettigrew) - Tanton (1931) describes the country rock as a pyritiferous, chlorite syenite. This was remapped by L. Ratcliffe in 2018 as a leucogabbro.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1MolybdeniteEconomicOre
2PyriteEconomicOre
3ChalcopyriteEconomicOre
4GalenaEconomicOre

Mineralization Comments

Jun 25, 2018 (Therese Pettigrew) - Molybdenite has been found in four pegmatite quartz veins distributed over a distance of 1.6 km along the contact of the tongue of granititc rock which, in lots A and B, concessions 2 and 3, Conmee township, extends north from the batholith. The largest of these veins is on the north side of the road in the southern part of Lot B, Concession 3. The vein consists of fine-grained, translucent, white quartz in which occurs amorphous molybdenite, in thin streaks and platy segregations, lying parallel to the walls and irregularly spaced through the vein. Small amounts of disseminated pyrite and chalcopyrite are present. The major part of this siliceous deposit is a vein 6.1 m wide, with few inclusions, and strikes approximately 50 degrees east and dips 80 degrees southeast. The 122 kg (270 lb) sample collected in 1918 assayed 1.29% MoS2 (Tanton, 1931).



Mineral Record Details

Classification
RankClassification            
1 Vein
Characteristics
Rank Characteristic            
1 Vein

Site Visit Information

Date: Jun 18, 2018

Geologist: Mark Puumala

Notes: M. Puumala, D. Campbell, T. Pettigrew, L. Ratcliffe and OGS mapping crew. Sampled quartz vein which had disseminated to massive molybdenite with small amounts of pyrite and chalcopyrite, at the edge of a marsh. Vein located at NAD83 UTM Zone 16, 306183 m E, 5368812 m N.



References

Map - Geological compilation series, Lakehead-Shebandowan sheet, District of Thunder Bay

Publication Number: P0177 Scale: 1:126,720    Date: 1997

Author: Pye E.G., Fenwick K.G.

Publisher Name: Ontario Dept. of Mines

Location:


Publication - 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 Scale:     Date: 1931

Author: Tanton, T.L.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/100799


Mono - Molybdenum deposits of Ontario

Publication Number: MDC007 Scale:     Date: 1968

Author: Johnston F.J.

Publisher Name: Ontario Dept. of Mines

Location:


Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.


Terms of Use

Please review our Terms of Use agreement for this data product.


Ministry Contact Information

For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office