Ontario Geological Survey
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MDI000000001026
Record Name(s) | L28 Zone - 2008, Beaver Dam - 2008 |
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Related Record Type | |
Record Status | Prospect |
Date Created | 2011-Mar-03 |
Date Last Modified | 2021-Nov-26 |
Created By | C Ravnaas |
Revised By | Therese Pettigrew |
Primary Commodities: Iron, Titanium, Vanadium
Township or Area: Farrington
Latitude: 48° 40' 32.07" Longitude: -92° 52' 12.5"
UTM Zone: 15 Easting: 509560 Northing: 5391400 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52C10NW
Point Location Description: GPs location from property visit
Location Method: Field Visit with GPS
Access Description: The occurrence is located approximately 45 km east of Fort Frances and is situated between Seine Bay and Bad Vermilion Lake. The property is accessed by logging roads that traverse the area south of Highway 11.
In 2008, Numax Resources Inc. exploration efforts targeted the iron and titanium potential of central part of the intrusion, which is situated near the historical Central Fe-Ti-V zone. A 100 m line-spaced control grid was established over the central part of the Westco property. A site visit was conducted by staff of the Kenora Resident Geologist Office to examine the exposures that underlie part of control-grid Line 2800. This area corresponds with highly anomalous responses identified by a continuous recording, ground magnetometer survey that was completed by Numax Resources Inc. The magnetic background response of the mafic intrusive rocks on the property averaged 57 000 gammas, with a minimum response of 50 000 and a maximum response exceeding 100 000 gammas. Based on the response from this survey, a section of Line 2800, coincident with an anomalous response, was the target of work by Numax Resources Inc. in 2008. A mechanical removal of overburden (power stripping) and pressure-washing program was completed to create a 203 m long, semi-continuous exposure of this potentially mineralized area (509560E 5391400N). The lengths of these exposures were excavated parallel to control-grid Line 2800. The exposure was also designed to trend perpendicular to the strike of the mafic intrusive rocks that underlie this part of the Bad Vermilion intrusion. The length of this exposure was semi-continuous channel-sawn that provided a method for Numax Resources to collect 221 samples at 1 m intervals. All of these samples were submitted for major and trace element analysis by the company, and selected assay are tabulated below. Reference Property Visit on Numax Resources Fe-Ti Property presented in Open File Report 2616. In 2009 a 4 drill holes tested exposures on L28 and L22, these holes confirmed the depth extension of the Fe-Ti-V mineralization as presented in surface exposures
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
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2.44177 | 20000004560 | 20000004560 |
2.44256 | 20000004545 | 20000004545 |
2.40665 | 20000013533 | 20000013533 |
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
Mar 03, 2011 (C Ravnaas) - The Bad Vermilion intrusion is an east-northeast-trending, layered mafic intrusive body approximately 25 km long and up to 1 km wide. This trend is generally parallel to the layering of the mafic units. Poulsen (2000) describes the mafic rocks of the intrusion as composed of equigranular medium-grained gabbro, leucogabbro and anorthosite, with disseminated magnetite and ilmenite occurring as common phases. The south boundary of the intrusion is fault-bounded by metasedimentary rock of the Quetico Subprovince, and felsic intrusive rocks are located immediately north of the Bad Vermilion intrusion. Reference Property Visit on Numax Resources Fe-Ti Property presented in Open File Report 2616.
Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 |
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Gabbro | 2 | Gabbro, Anorthosite | Host |
Mar 03, 2011 (C Ravnaas) - The iron-bearing rocks examined in the Line 2800 exposures supports Shklanka's (1968) genetic classification of the historic iron-titanium-vanadium zones as magmatic iron deposits. Based on major element chemistry of samples collected from the Line 2800 exposures, the width of this iron-bearing zone could exceed 203 m. The extent of these iron-bearing rocks, at this portion of the Bad Vermilion intrusion, has been proven to exceed the width of 125 m based on interpretation of the ground magnetometer survey response (see Figure 5). The potential extension of the mineralized rocks existing north of the Line 2800 exposure is unknown because this area is covered with overburden. Reference Property Visit on Numax Resources Fe-Ti Property presented in Open File Report 2616.
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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1 | Magnetite | Economic | Ore | ||||
2 | Pyrrhotite | Economic | Ore | ||||
3 | Pyrite | Economic | Ore | ||||
4 | Chalcopyrite | Economic | Ore |
Mar 03, 2011 (C Ravnaas) - Occurrence based on: Three zone of unique litho logy have been identified at the L28 exposure. Zone A - the southern 50 m of this zone, based on the magnetic response and assay results, is underlain by rocks that contain significant amounts of iron. The amount of iron in these samples does not correspond to the titanium content. Sample returned up to 49.07% Fe, 11.12% Ti. Zone B - this 40 m section, which is associated with the central part of Line 2800 exposure, based on assay results and supported by the interpretation of the magnetic response profile, is underlain by rocks that contain anomalous iron and significant concentrations of titanium. The content of iron in the samples collected from this zone, in contrast to zone A, corresponds with the amount of titanium. Assay results returned up to 37.89% Fe and 13.01% Ti. Zone A - this northern 110 m of the Line 2800 exposure is underlain by rocks that have unique characteristics. The amount of iron in these rocks, which is still significant, progressively decreases in content north from Zone B. The assay result of the sample site located adjacent to Zone B contains 26.2% Fe (sample 765), whereas the most northerly sample of zone C returned 18.5% Fe. Assay results also returned up to 3.73% Ti. Reference Property Visit on Numax Resources Fe-Ti Property presented in Open File Report 2616. Prospect based on 2008 diamond drill hole results The drill core on L28 exposure intersected 3 iron-bearing zones. From drill hole Nu-08-02 which test the L28 exposure - the first zone, which is approximately 23 m true width averages 55.5% Fe, 18.89% TiO2 and .322% V2O5. The second zone is 8m true width and averages 60.56% Fe, 26.23% TiO2 and 0.138% V2O5. The third zone is also 8m true width and averaged 57.64% Fe, 25.17% TiO2 and 0.127 V2O5. Reference Numax Resources Inc. Kenora District Geology Office Assessment file 52C10NW Z-14 AFRO 2.44256.
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