Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001057

Record: MDI000000001057

General

Mineral Record Identification
Record Name(s) Hamel Lake South - 2007
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2011-Mar-07
Date Last Modified 2022-Jul-27
Created By
Revised By

Commodities

Primary Commodities: Uranium



Location

Township or Area: Reynar Lake Area

Latitude: 50° 28' 23.44"    Longitude: -95° 6' 29.31"

UTM Zone: 15    Easting: 350409.998   Northing: 5593365.996    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52L06NE

Point Location Description: Taken from geology map assessment file AFRO 2.40951

Location Method: Data Compilation

Access Description: can be accessed by the Werner Lake road, a restricted access road originally built in the 1960s to service a now abandoned nickel-copper mine, from Manitoba and off Highway 315 followed by boat travel or alternatively, flying in on float or ski-equipped fixed wing aircraft or helicopter. A travel permit can be obtained for exploration purposes from the Ontario Ministry of Natural Resources, Kenora District. (Reference: Temex Resources, Kenora assessment file 52L06NE Y-3 and Y-4, AFRO# 2.40951



Exploration History

A number of uranium occurrences in granite and pegmatite were discovered during the 1970s along the south margin of the English River gneiss belt, mainly in the Richard Lake area of northwestern Ontario. Also at that time a large airborne gamma-ray spectrometer survey was flown along the English River gneiss belt in Manitoba and Ontario by the federal Department of Energy, Mines and Resources. This survey delineated a strong eU (equivalent uranium) anomaly in the area of Marijane Lake near the east end of the Bird River belt and extending through the area now covered by the claims of the Huston Lake Property. 2007: Temex contracted William C. Hood, P.Geo. based in Beausejour, Manitoba to complete a reconnaissance prospecting program to investigate the cause of some of the OGS-GSC reported airborne anomalies (AFRO 2.40689). 2008: Temex conducted a helicopter-borne high resolution aeromagnetic and spectrometric survey over the Properties. The 2705 line-kilometre survey was flown with 100 metre spaced lines (AFRO 2.39038). Detailed prospecting of radiometric anomalies was conducted. Traverses were made along and across radiometric anomalies - A total of 336 grab samples were collected from outcrop during the program and 72 samples returned greater than 200 ppm U and 31 of those returned greater than 500 ppm U; 12 of those samples returned greater than 1000 ppm U (AFRO 2.39400). From December 1 to 19, 2008 a 12-hole, 1386 metre, helicopter-supported diamond drill program was completed on the Properties (AFRO 2.40951)




Geology Comments

Mar 07, 2011 (C Ravnaas) - The claim group is mainly underlain by granite and pegmatitic granite of the Marijane Lake Batholith. The southwest corner of the property covers flanking sediments and volcanic rocks of the Flanders Lake and Bernic Lake Formations, which are heavily intruded by late pegmatitic granite, while the north margin of the claim group covers the contact of the batholith with adjacent Flanders Lake Formation sediments. The sedimentary and volcanic rocks flanking the Marijane Lake Batholith are wrapped in a large northwest-plunging anticline around the “nose” of the Marijane Lake Batholith. The northwest end of the Marijane Lake Batholith appears to be a shallow-plunging roof zone or cupola, at the top of the batholith. (Reference: Temex Resources, Kenora assessment file 52L06NE Y-3 and Y-4, AFRO# 2.40951)




Lithology Comments

Mar 07, 2011 (C Ravnaas) - The Properties are situated within geological environments previously identified by the GSC (Ruzicka, 1979) as having the potential for porphyry uranium deposits, such as the Rössing uranium deposit in Namibia which has uraninite mineralization hosted in alaskite granite, and grades less than 1 lb/ton (0.05%) U3O8 within a very large open-pit deposit. These types of orthomagmatic and anatectic uranium deposits occur in granitic pegmatite and pegmatite host rocks. The felsic intrusives range from grey to white in colour, medium grained to pegmatitic and are comprised of variable compositions of quartz, biotite, and white to pink feldspar indicating a granite to tonalite composition. Locally biotite occurs disseminated in the groundmass to forming masses, nodules and schlieren. Sample results from the fall field program demonstrated the Reynar Lake radiometric anomalies are largely associated with the intercalated felsic intrusives (Reference: Temex Resources, Kenora assessment file 52L06NE Y-3 and Y-4, AFRO# 2.40951)




Mineralization Comments

Mar 07, 2011 (C Ravnaas) - Drill Hole THL-08-07 area South of Haanel Lake, along the southern extents of a radiometric anomaly, THL-08-07 tested uranium mineralization in a grab sample taken along the ridge of an east-west trending, white to light grey, coarse grained tonalite to granodiorite. Yellow uranophane staining is present along the steeply north dipping ridge where grab sample RY-08-050 yielded 2900 ppm U (3883 ppm U308). THL-08-07 had elevated scintillometer counts from 17.50 to 23.00 metres (ranging up to 600 cps) within thinly interbedded layers of biotite schlieren, metasediments and felsic intrusives with garnet porphyroblasts, and yielded 140 ppm U over 1.10 metres. A second interval of 37 ppm U from 39.40 to 40.20 metres corresponded to a dark pink, weakly foliated granite with large flakes of biotite and scintillometer counts up to 290 cps. (Reference: Temex Resources, Kenora assessment file 52L06NE Y-3 and Y-4, AFRO# 2.40951)



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