Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52K06SW00004

Record: MDI52K06SW00004

General

Commodities

Primary Commodities: Uranium

Location

Township or Area: Aerobus Lake Area

Latitude: 50° 21' 33.14"    Longitude: -93° 20' 52.76"

UTM Zone: 15    Easting: 475247   Northing: 5578628    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52K06SW

Point Location Description: Location of Sample 244262 from AFRI 20000003744

Location Method: Conversion from MDI

Access Description: Access is by provincial highways 17 and 105 and the Timber Point Camp road. A boat launch at the Timber Point Camp provides access to the showing on Aerobus Lake. There is a network of logging roads that can be used once across the lake.

Exploration History

1955: 9 X-ray DDH totalling 188.4 m were drilled by S. Duggan and C. St. Paul. 1983: Noranda Exploration Company Ltd. flew an airborne magnetic survey. 1986: trenching was conducted. 2008: Delta Uranium conducted prospecting and airborne magnetic, radiometric, and VLF-EM surveys.

Assessment Work on File

Geology

Province: Superior

Subprovince: Winnipeg River

Terrane: Winnipeg River

Geological Age: Archean  

Lithology

Lithology Comments

Mar 14, 2018 (Therese Pettigrew) - The regional geology of the Aerobus Lake property is dominated by massive medium-grained granodiorite to granite and a gneissic tonalite suite, with minor paragneiss, migmatites and metasedimentary rocks, as well as a foliated tonalite suite. In the area of Anomaly 8, the rocks are medium-grained granite with small patches of coarser-grained pegmatite throughout and many small biotite-schist xenoliths. The higher scintillometer readings are found along the contacts with the granite and schist (AFRI 20000003744).

Mineralization

Mineralization Comments

Mar 14, 2018 (Therese Pettigrew) - Grade - best assays: 0.05% U3O8 over 1.7 m, 0.07% U3O8 over 1.35 m (from DDH) and 5156 U3O8 ppm, 2501 U3O8 ppm, 2478 U3O8 ppm, 3339 U3O8 ppm (grab samples). Prospecting several of the airborne radiometric anomalies has confirmed the presence of uranium mineralization. Samples collected by OGS staff in 1975 assayed 0.03% and 0.006% U3O8 (Beard and Scott, 1975). During the 2008 radiometric survey, the highest outcrop reading noted was 40,600 cps in an old pit close to the uranium showing. This outcrop assayed up to 5156 ppm U3O8 (AFRI 200000037440). Uranium mineralization is found in medium- to coarse-grained quartz monzonite near the contact with quartz-feldspar-biotite metasediments. Yellow staining is common (Robertson and Gould, 1983).

Mineral Record Details

References

Mono - Uranium and thorium deposits of northern Ontario

Publication Number: MDC009 Scale:     Date: 1968

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

Location:

Article - Kenora District

Publication Number: MP023.002 Scale:     Date: 1997

Author: King H.L.

Publisher Name: Ontario Dept. of Mines

Location:

Article - 1975 report of the Northwestern Regional Geologist and Kenora Resident Geologist

Publication Number: MP064.001 Scale:     Date: 1997

Author: Beard R.C., Scott W.R.

Publisher Name: Ontario Division of Mines

Location:

Mono - Uranium and thorium deposits of northern Ontario

Publication Number: MDC025 Scale:     Date: 1984

Author: Robertson J.A., Gould K.L.

Publisher Name: Ontario Geological Survey

Location:

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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office