Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52I10SW00016

Record: MDI52I10SW00016

General

Commodities

Primary Commodities: Tin

Secondary Commodities: Tantalum, Beryllium

Location

Township or Area: Linklater Lake Area

Latitude: 50° 33' 10.83"    Longitude: -88° 46' 17.75"

UTM Zone: 16    Easting: 374501   Northing: 5601618    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52I10SW

Point Location Description: 'Sn, be' showing on OGS map P0267 at SE end of Linklater Lake

Location Method: Data Compilation

Exploration History

1943: Showing discovered by prospector Stanley Johnson. 1947: Tin assays received by E. Wenzel. 1948: Stripping, trenching and sampling by San Antonio Gold Mines Ltd. and work on claims KK4781, 4783, 4784 over a distance of 1600 feet by 50 feet. 1949: 8 diamond drill holes by Canada Tin Limited on claim KK4783 for a total of 735 feet. 1960: 7 diamond drill holes by Chimo Gold Mines Ltd. on claim KK22128 (KK4783) for a total of approximately 480 feet. 2000: G. O'Reilly carried out prospecting and sampling.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Geological Age: Archean  

Geology Comments

May 23, 2023 (Therese Pettigrew) - The property is located at the northern edge of the Wabigoon subprovince, 0.5 km south of the regional scale fault which marks the boundary with the English River subprovince to the north (Assessment report 52I10SW2001).

Lithology

Lithology Comments

May 23, 2023 (Therese Pettigrew) - The formation is cut by numerous quartz veins, and granite and pegmatite dykes containing microcline, muscovite, minor tourmaline, and garnet, and, rarely, beryl (Gussow, 1942).

Mineralization

Mineralization Comments

May 23, 2023 (Therese Pettigrew) - In an easterly striking zone that was stripped and trenched for 1,800 feet by San Antonio Gold Mines Ltd., numerous narrow bands of pink granophyric pegmatite cut impure arkosic quartzite with narrow bands of magnetic iron-formation. The best channel sample of the stringers assayed up to 1.83 per cent tin across a width of 0.5 feet. A sample from the main showing gave an assay value of 2.60% tin. Other grab samples of pegmatitic material assayed from a trace of tin to 0.04 percent tin, and trace of beryl (Chisholm, 1948). The stringers are contorted and have, in general, an augen rather than pegmatitic texture. They consist mainly of pink feldspar, minor quartz, muscovite, and locally tourmaline. Thin sections showed the feldspar to be mainly plagioclase, probably albite, commonly shattered and recrystallized. Muscovite is also distorted and outlines the augen structure of quartz-feldspar assemblages. Sections from the higher grade stringers contain abundant beryl in microscopic crystals, as well as tourmaline, a little cassiterite, and topaz. Samples of these were reported to contain up to 0.15 per cent Be and up to 0.2 per cent Sn by spectrographic analysis (GSC spectrographic laboratory). Samples of the wall-rocks were reported to contain nil Be and less than 1 ppm Sn on a magnetic fraction, and less than 5 ppm Be, 4.4 ppm Sn, on a non-magnetic fraction (Mulligan, 1968). According to Mulligan (1975, p.102), trenching at the occurrence "has exposed 18 narrow granitoid dykes cutting across greywacke and iron-formation in a zone 1,500 feet long and 50 feet wide. The dykes average 6 inches in width and 30 feet in length. They are composed of pink feldspar, quartz, and muscovite, with minor tourmaline and scattered concentrations of cassiterite. They are partly felsitic but mainly granitoid, with a distinct augen structure due to lenticular porphyroblasts of feldspar. The texture is cataclastic, with shattered feldspar grains partly recrystallized and consisting mainly of plagioclase, probably albite. Microscopic grains of cassiterite and beryl were seen in some thin sections, and topaz and fluorite were tentatively identified." "The cassiterite occurs mainly with the feldspar and is rare in quartz and micaceous bands. Thus it appears to be an original constituent rather than associated with the later mineralization along the small shear zones" (Chisholm, 1948).

Mineral Record Details

References

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

Publication Number: P0267-REV Scale: 1:126,720    Date: 1984

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

Publisher Name: Ontario Geological Survey

Location:

Mono - Preliminary report on the Linklater Lake tin discovery, District of Thunder Bay

Publication Number: PR1948-11 Date: 1998

Author: Chisholm E.O.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Geology of the Caribou-Pikitigushi area

Publication Number: ARV49-06 Date: 1997

Author: Gussow W.C.

Publisher Name: Ontario Dept. of Mines

Location:

Publication - Geology of Canadian beryllium deposits; Geological Survey of Canada, Economic Geology Report 23

Publication Number: Econ Geol 23 Page: 77-78  Date: 1968

Author: Mulligan, R

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/102457

Mono - Industrial minerals of northern Ontario-supplement 1

Publication Number: OFR5388 Page: 180-182  Date: 1982

Author: Vos M.A., Abolins T., Smith V.

Publisher Name: Ontario Geological Survey

Location:

Mono - Operation Fort Hope

Publication Number: MP042 Page: 57  Date: 1970

Author: Thurston P.C., Carter M.W.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

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

Publication Number: R251 Page: 59  Date: 1988

Author: Sutcliffe R.H.

Publisher Name: Ontario Geological Survey

Location:

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