Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000002047

Record: MDI000000002047

General

Commodities

Primary Commodities: Uranium, Thorium, Beryllium, Vanadium, Rare Earth Elements, Yttrium, Zircon

Location

Township or Area: Walsh

Latitude: 48° 50' 21.77"    Longitude: -86° 40' 49.51"

UTM Zone: 16    Easting: 523450   Northing: 5409650    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D15NE

Point Location Description: Map in 2009 NI 43-101

Location Method: Data Compilation

Access Description: The showing is easily accessed via an all-weather dirt road, Dead Horse Creek, that begins at Provincial Highway 17, the Trans-Canada Highway, about 43 km east of the town of Terrace Bay and 25 km west of the town of Marathon in Northern Ontario. The showing is on the west side of Dead Horse Creek so travel north 3.6 km over the Dead Horse Cr.with acces by foot 665 to the SSW.

Exploration History

1977: Gulf Minerals Canada Ltd. staked a claim group to cover a radioactivity anomaly. Limited prospecting was completed. 1978: Gulf Minerals Canada Ltd. completed geological mapping and diamond drilling (8 holes). 1981: Gulf Minerals Canada Ltd. completed one diamond drill hole (130.1 m). 1982: Property re-staked by D.O. Walsten. No work recorded. 1984: Property re-staked by O. Belisle. 1985: Property optioned to Highwood Resources. A grid was cut and geochemical sampling conducted. Property returned to O. Belisle. 1987: Unocal Canada Ltd. optioned the property from Jet Exploration-O. Belisle. An exploration program of geological mapping, soil geochemistry, stripping, and scintillometer and geophysical (Magnetometer and Radiometric) surveys were completed. 1988: Unocal Canada Ltd. relogged and sampled the Gulf Minerals Canada Ltd. diamond drill holes and carried out channel sampling of the surface trenches. 1991: Unocal Canada Ltd. returned the property to O. Belisle. 2008: J. Ternoskwsky staked the property. 2009: Canadian International Minerals Inc. optioned the property. 2010: Canadian International Minerals contracted Fugro Airborne Surveys to fly a high-resolution magnetic and radiometric survey. 2011: Canadian International Minerals completed prospecting, geological mapping, rock sampling, spectrometer (radiometric) surveys, trenching and channel sampling

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean   Geochronological Age: 1085 +/- 15Ma max age for   Geochron. Age Ref.: Bell et al 1979

Geology Comments

Jan 23, 2017 (Andrew Tims) - The West Diatreme appears to narrows from 30 m to a width of 2 m at a vertical depth of 40 m but it is possible that the hole intersected a narrow sheared keel and the diatreme is actually plunging eastward. The breccias have highly varying textures, with wide ranges in fragment size, shape, color, and composition. The Red Breccia dominates the West diatreme. Locally, the rims of the clasts are more intensely altered than the centers of the clasts. The intense red coloration of the clasts implies that possibly hematite has been added, but the conchoidal fracturing and strong response to the potassium channel on the spectrometer would seem to indicate that possibly potassium feldspar has been introduced during metasomatism. fragments weather in relief but the matrix shows pronounced silification. Fragment density is variable although the trend is toward 60 % to 70 % closely packed fragments.

Lithology

Mineralization

Mineralization Comments

Sep 12, 2019 (Andrew Tims) - Grab sample results of:0.6% Be, 1.84% Th, 0.79% U. Rare Earth and beryllium mineralization has been documented. The REE mineralization located so far seems to be associated with uranium and thorium-bearing minerals. Significant U-Be-Zr mineralization lies in Western subcomplex, but not genetically related. Max dimensions are 130 m x 40 m. The western complex is composed of three separate units: An unmineralized volcaniclastic breccia. A cross-cutting main U-Be-Zr mineralized zone and a carbonate dyke. The main U-Be-Zr mineralized zone is easily recognized by its chocolate-brown color and aphanitic-to-vitreous texture, which contrasts strongly with the leucocratic breccia.

Sep 12, 2019 (Therese Pettigrew) - Sample C048072, taken from mafic breccias of the West Diatreme and having 20,000 counts per second reading on a scintillometer, returned assays of 0.22% U, 0.13% Th, 3250 ppm V, 524 ppm Y, and 2.96% Zr (Arseneau and Elliot, 2009).

Mineral Record Details

References

Journal - Mineralogy of the Deadhorse Creek Volcaniclastic Breccia Complex, Northwestern Ontario, Canada, pp 212–229

Publication Number: Vol 150,2 Date: 2005

Author: Potter, E., Mitchell, R.

Publisher Name: Contributions to Mineralogy and Petrology

Location:

Publication - Dead Horse Creek Rare Earth Project, Walsh Township Northern Ontario

Publication Number: 2009 43-101 Date: 2009

Author: Arseneau,G., Elliot, C.

Publisher Name: Canadian International MiInerals Inc

Location: SEDAR, filed under Canadian Energy

Thesis - Rare and exotic mineralogy of the western subcomplex of the Deadhorse Creek "diatreme", Northwestern Ontario

Publication Number: Thesis Date: 2004

Author: Potter, E.G.

Publisher Name: Lakehead University

Location: https://knowledgecommons.lakeheadu.ca/handle/2453/4062

Journal - Geology and Geochemistry of the West Dead Horse Creek Rare-Metal Occurrence, Northwestern Ontario.

Publication Number: EMG Vol 2 No 3 Date: 1993

Author: Smyk, M.C., Taylor, R.P., Jones, P.C., Kingston, D.M.

Publisher Name: Exploration Mining Geology

Location:

MonoMap - Geology of the Jackfish-Middleton area, District of Thunder Bay

Publication Number: R050 Date: 1997

Author: Walker J.W.R.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Mineralization in diatreme structures north of Lake Superior

Publication Number: S027 Date: 1982

Author: Sage R.P.

Publisher Name: Ontario Geological Survey

Location:

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