Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52I08NE00011

Record: MDI52I08NE00011

General

Commodities

Primary Commodities: Iron

Location

Township or Area: Falcon Lake Area

Latitude: 50° 24' 24.17"    Longitude: -88° 4' 51.46"

UTM Zone: 16    Easting: 423187   Northing: 5584411    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52I08NE

Point Location Description: General

Location Method: Conversion from MDI

Access Description: Access to the Junior Lake property from Thunder Bay is via paved provincial highways No. 17 (15 km) and No. 527 to Armstrong, with an overall distance of approximately 235 km. From Armstrong, the Buchanan Forest Products Inc. gravel haulage road (BHR) is taken east to kilometre 105, where a skidder haulage road leads approximately one kilometre to the Landore Junior Lake camp. Skidder and drill roads provide access on the property. The Lamaune prospect is located in the western portion of the Junior Lake property.

Exploration History

1958-60: Sogemines Development Co. Ltd. conducted trenching, magnetometer surveys and drilled 1 DDH. 2000: Norcal conducted linecutting, VLF and magnetometer surveys. 2003: Landore Resources Canada Inc. optioned the property and conducted prospecting and trenching. 2004: Landore conducted prospecting, trenching, geological mapping, and an airborne geophysical survey. 2005-10: Landore drilled 40 DDH totalling 7933 m and conducted trenching, sampling and a helicopter-borne geophysical survey. 2011: Landore transferred the property to their wholly-owned subsidiary, Lamaune Iron Inc.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Caribou Lake

Geological Age: Archean  

Lithology

Mineralization

Mineralization Comments

Jun 29, 2015 (Therese Pettigrew) - According to Oja (1960), a magnetic concentrate of a sample of iron formation from south of North Lamaune Lake, after grinding to -100 mesh, was found to contain 65.36% Fe, 0.071% P, 6.58% silica, and 0.20% TiO2. On the basis of the magnetometer surveys, Oja (1960) concluded that, south and southeast of North Lamaune Lake, there appear to be 5 deposits within the iron formation that are large enough and sufficiently rich in magnetite to be of possible economic significance. The banded magnetite is nominally hosted in chert plus banded amphibolite. The host is a mixture of chert, amphibole and disseminated pyrite. The magnetite occurs in two main forms. Type 1 is a black banded style with individual bands from approx. 0.5 to 20 mm consisting of fairly pure Fe3O4 but in a very fine-grained form. It has a microgranular texture and it sometimes displays a weak conchoidal fracture. The magnetite is interbanded with chert or impure chert in about equal ratio. Type 2 is a grey to black intergrowth of very fine-grained minerals, usually fibrous amphibole, cherty silica and sulphides. This mixture has a very variable magnetite content estimated to be between 10 and 50% Fe3O4. Similarly, the magnetite-rich bands are interbanded with chert or amphibole-rich chert. Type 2 is volumetrically far more dominant than Type 1 (AFRI 20000006222). The Lamaune magnetite iron project is an Algoma-type magnetite iron deposit and contains an “exploration potential” of 300-500 million tonnes of mineralization grading from 25-35% Fe (http://lamauneiron.com/asset-summary)

Mineral Record Details

References

MonoMap - Geology of the Crescent Lake area, District of Thunder Bay

Publication Number: R055 Page: 45-47  Date: 1968

Author: Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Iron deposits of Ontario

Publication Number: MDC011 Page: 439-440  Date: 1968

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

Folio - Falcon Lake area, District of Thunder Bay

Publication Number: GDIF013 Date: 1997

Author: Thunder Bay RGO

Publisher Name: Ontario Geological Survey

Location:

File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date: 1996

Author:

Publisher Name:

Location: Thunder Bay RGP

Map - Crescent Lake area, Thunder Bay District

Publication Number: M2100 Date: 1997

Author: Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Tashota-Geraldton sheet, geological compilation series, Thunder Bay and Cochrane districts

Publication Number: M2102 Date: 1997

Author: Pye E.G., Harris F.R., Fenwick K.G., Baillie J.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Precambrian Geology of the Caribou Lake Greenstone Belt, Northwestern Ontario

Publication Number: P3613 Scale: 1:50,000    Date: 2009

Author: MacDonald C.A., ter Meer M., Lowe D., Isaac C., Stott G.M.

Publisher Name: Ontario Geological Survey

Location:

Map - Compilation series, Mojikit Lake sheet, Thunder Bay District

Publication Number: P0267 Scale: 1:126,720    Date: 1997

Author: Stott G.M., McConnell C.D., Mason J.K.

Publisher Name: Ontario Geological Survey

Location:

Publication - Technical Report on the Lamaune Iron Project, Northwestern Ontario, Canada, NI 43-101 Report

Publication Number: 2011 NI 43-101 Date: 2011

Author: Chamois, P.

Publisher Name:

Location:

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Ministry Contact Information

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