Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52F07SW00024

Record: MDI52F07SW00024

General

Mineral Record Identification
Record Name(s) Reliance Bay - 1899
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Jan-24
Date Last Modified 2022-Jul-07
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Lower Manitou Lake Area

Latitude: 49° 22' 4.72"    Longitude: -92° 50' 11.23"

UTM Zone: 15    Easting: 511873.772   Northing: 5468376.353    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52F07SW

Point Location Description: Transfer

Location Method: Conversion from MDI

Access Description: The Manitou Lake Property is situated in the District of Kenora, of Northwestern Ontario, approximately 45 kilometers south of the town of Dryden (Figure 1). The property is within NTS quadrangle 52F /7 and the claims are recorded on the Lower Manitou Lake claim-map (G-2683) and the Harper Lake claim map (G-2584) (Figure 2). The property lies between longitudes 93°48'W and 93°53'W and latitudes 49°20'30"N and 49°24'N. Access to the .property is via float and/or ski equipped aircraft provided by Swanair Ltd. of Dryden, Ontario. Two alternate land routes originate from Highway 512. The "Goldrock Road" is a narrow, five-mile winter road which follows along the northshore of Kabagukski (Mud) Lake and terminates at the Goldrock townsite (Upper Manitou Lake landing), approximately 9 kilometers by water, east of the property. A second land access route is provided by a 10 mile all-weather lumber road connecting the northern end of upper Manitou Lake at Jonas (Bell) Lake to Highway 512. This road has not been used in recent years and is in poor repair particularly within 1.5 miles of Jonas Lake. (Assessment File 52F/07SW U-16, St. Joe Canada Inc., Kenora Resident Geologist Office)



Exploration History

1982: The Reliance and Frenchman Island claim groups were optioned by St. Joe Canada Inc. from M. Woitowicz of Dryden, Ontario. The following was carried out by St. Joe prior to the commencement of the period of designation for the OMEP project, line cutting, geological mapping, prospecting, magnetometer and humus geochemical surveys over the Reliance claims and Frenchman Island. Sept. 1982: Waterborne I.P. and Seismic surveys conducted by Hardy (1978) Associates Ltd. Sept., Oct., Nine diamond drill holes on Frenchman Island totalling 864m. Two diamond drill holes on the Reliance grid totalling 168m. March 1983: Detailed I. P. and magnetometer surveys on the Reliance grid completed by Claridge-LaRose Geophysics Ltd. October 1983: the initial stages of a diamond drill program on the Reliance, grid. Three holes were completed totalling 398m. Eight diamond drill holes on the Reliance Grid totalling 866 meters (2,841 ft.). One diamond drill hole on Frenchman Island "A" Zone totaling 102 meters. The diamond drilling was part of the St. Joe Canada Inc./Geddes Resources Joint Venture Agreement.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.9657 / 52F07SW U-16 52F07SW0012 52F07SW0012

Geology

Province: Superior

Subprovince: Wabigoon

Terrane: Western Wabigoon

Belt: Eagle-Wabigoon-Manitou

Geological Age: Precambrian  



Geology Comments

Dec 11, 2009 (D Scholtz) - The Manitou Lake Property is located in the Manitou-Stormy Lakes portion of the Archean Wabigoon Greenstone Belt of Northwestern Ontario. The property is underlain by the mafic metavolcanic sequence of the Blanchard Lake Group and intermediate pyroclastic volcanics of the overlying Upper Manitou Lake Group. The contact strikes roughly northeast, extending from the Carleton Lake quartz-monzonite stock to Reliance Bay, where the contact is offset by a north-south striking fault with left-lateral displacement in the order of 550 to 650 meters (?). On the east side of this fault, the contact between these groups cuts through the northern part of Reliance Bay towards eastern Swede Boys Island. Where the contact occurs on land, near the Carleton Lake Stock, the volcanic beds on either side appear conformable although an intervening valley may be evidence of a fault contact. The metavolcanics of the Blanchard Lake and upper Manitou Lake Groups strike roughly north-south on the southern Reliance grid but gradually change to a northeastward strike (45-65°) over much of the property. Dips are fairly consistently 60-85° southeast over the claim group. Variability is most prominent in the pillowed units. Pillowed units indicate that the top of the stratigraphic column is to the southeast. The Blanchard Lake Group underlies all of the Reliance Grid area. It is characterized by interbedded and interfingered tholeiitic and gabbroic basalt to andesitic pillowed flows and coarse-grained often porphyritic, "gabbroic" basal t flows. The pillowed flow units are commonly associated with flow breccia units, increasing in abundance to the northeast. The pillowed units and flow breccia units have been exposed to varying degrees of selective epidotization and silicification. Altered pillow cores is particularly characteristic of the pillowed mafic flow units in the Reliance North Shore area. Stratigraphic relationships between the coarse-grained (porphyritic) "gabbroic" basalt flow units and the interbedded and interfingered flow units, suggests some metamorphic overprint which may have altered some primary textural characteristics. This is further supported by the occurrence of the coarse “gabbroic” texture in some pillow cores. The upper Manitou Lake Group is characterized by dominantly fragmental pyroclastic rocks, often crystal-rich, intermediate in composition. The coarseness of the pyroclastics supports the long accepted model of a proximal vent. Rare mafic flow units, interbedded with the intermediate pyroclastics of the Upper Manitou Lake Group, are compositionally and texturally similar to mafic flows of the earlier Blanchard Lake Group, and may be derived from a more distant semi-dormant vent. The Carleton lake Stock is exposed in the southern part of the claim block. This quartz monzonitic pluton intrudes both the Blanchard Lake and upper Manitou Lake metavolcanics. The quartz monzonite is flanked by an unaltered, coarse-grained, porphyritic “gabbroic" basalt flow, of the Blanchard Lake Group, on the west. To the north, the felsic stock intrudes intermediate pyroclastics of the upper Manitou Lake Group, with many small monzonitic offshoots, quartz veining (minor pyrite, minor chalcopyrite and sphalerite locally) and minor alteration. The other significant intrusive rock on the property is the dioritic to quartz dioritic hypabyssal core, exposed on Frenchman Island and the west sides of North and South Islands. Distinctively blue quartz is characteristic of the equigranular to slightly feldspar-phyric quartz diorite. This subvolcanic plug shows considerable textural variability and generally has indistinct margins. The margin occurs as a broad contact zone with the surrounding metavolcanic phases, which probably represent extrusive equivalents. Felsic dikes are common in both the Blanchard Lake and Upper Manitou Lake Groups.




Lithology Comments

Feb 23, 2010 (C Ravnaas) - ASSAY: 1200 PPB AU FROM GRAB. 1982: The Reliance and Frenchman Island claim groups were optioned by St. Joe Canada Inc. from M. Woitowicz of Dryden, Ontario. The following was carried out by St. Joe prior to the commencement of the period of designation for the OMEP project, line cutting, geological mapping, prospecting, magnetometer and humus geochemical surveys over the Reliance claims and Frenchman Island. Sept. 1982: Waterborne I.P. and Seismic surveys conducted by Hardy (1978) Associates Ltd. Sept., Oct., Nine diamond drill holes on Frenchman Island totalling 864m. Two diamond drill holes on the Reliance grid totalling 168m. March 1983: Detailed I. P. and magnetometer surveys on the Reliance grid completed by Claridge-LaRose Geophysics Ltd. October 1983: the initial stages of a diamiond drill program on the Reliance, grid. Three holes were completed totalling 398m. Eight diamond drill holes on the Reliance Grid totalling 866 meters (2,841 ft.). One diamond drill hole on Frenchman Island "A" Zone totaling 102 meters. The diamond drilling was part of the St. Joe Canada Inc./Geddes Resources Joint Venture Agreement. The Reliance shear zone, along which seven old shafts and pits are located, correlates to an I.P. conductor which, during the present report period, has been extended approximately 700 meters along strike, to the northeast. Slightly anomalous gold values were returned in the area (.04 oz/t Au, grab). The Reliance shear zone, now inferred from I.P. to have a 3 kilometer strike length, has not as yet been adequately drill tested. Favourable geology, magnetic anomalies and anomalous gold and arsenic values in humus samples are associated with the southern end of this l.P. defined zone. Further drill testing along the main Reliance shear zone and the northeastern extension is recommended. The Reliance zone, although a structural shear zone, does follow regional stratigraphic grain and appears to be lithology specific. The sheared zone is confined to a narrow pillowed mafic flow units which is both underlain and overlain by massive coarse-grained and in some cases porphyritic mafic flows. The difference in competence of these two lithologies is evident from their contrasting response to regional foliation. The coarse grained flows are quite competent and resistant to structural deformation. In the instance of the Reliance shear zone, where a relatively thin, less competent pillowed flow unit is bounded by two competent units, the deformation may be focused in this pillowed flow unit resulting in intense shearing. Such structural deformation has created a system of conduits which has allowed hydrothermal fluids to deposit sulphides and gold in lenses or pods along this sheared horizon. The old pits and shafts correspond to several of these auriferous pods. There is significant potential for additional mineralized pods along this 3km long, sheared stratigraphic horizon, which corresponds to a moderate to strong I.P. anomaly. (Assessment File 52F/07SW U-16, St. Joe Canada Inc., Kenora Resident Geologist Office) SEE GEOLOGY DEPOSIT COMMENT




Mineralization Comments

Feb 23, 2010 (C Ravnaas) - ASSAY: 1200 PPB AU FROM GRAB. 1982: The Reliance and Frenchman Island claim groups were optioned by St. Joe Canada Inc. from M. Woitowicz of Dryden, Ontario. The following was carried out by St. Joe prior to the commencement of the period of designation for the OMEP project, line cutting, geological mapping, prospecting, magnetometer and humus geochemical surveys over the Reliance claims and Frenchman Island. Sept. 1982: Waterborne I.P. and Seismic surveys conducted by Hardy (1978) Associates Ltd. Sept., Oct., Nine diamond drill holes on Frenchman Island totalling 864m. Two diamond drill holes on the Reliance grid totalling 168m. March 1983: Detailed I. P. and magnetometer surveys on the Reliance grid completed by Claridge-LaRose Geophysics Ltd. October 1983: the initial stages of a diamiond drill program on the Reliance, grid. Three holes were completed totalling 398m. Eight diamond drill holes on the Reliance Grid totalling 866 meters (2,841 ft.). One diamond drill hole on Frenchman Island "A" Zone totaling 102 meters. The diamond drilling was part of the St. Joe Canada Inc./Geddes Resources Joint Venture Agreement. The Reliance shear zone, along which seven old shafts and pits are located, correlates to an I.P. conductor which, during the present report period, has been extended approximately 700 meters along strike, to the northeast. Slightly anomalous gold values were returned in the area (.04 oz/t Au, grab). The Reliance shear zone, now inferred from I.P. to have a 3 kilometer strike length, has not as yet been adequately drill tested. Favourable geology, magnetic anomalies and anomalous gold and arsenic values in humus samples are associated with the southern end of this l.P. defined zone. Further drill testing along the main Reliance shear zone and the northeastern extension is recommended. The Reliance zone, although a structural shear zone, does follow regional stratigraphic grain and appears to be lithology specific. The sheared zone is confined to a narrow pillowed mafic flow units which is both underlain and overlain by massive coarse-grained and in some cases porphyritic mafic flows. The difference in competence of these two lithologies is evident from their contrasting response to regional foliation. The coarse grained flows are quite competent and resistant to structural deformation. In the instance of the Reliance shear zone, where a relatively thin, less competent pillowed flow unit is bounded by two competent units, the deformation may be focused in this pillowed flow unit resulting in intense shearing. Such structural deformation has created a system of conduits which has allowed hydrothermal fluids to deposit sulphides and gold in lenses or pods along this sheared horizon. The old pits and shafts correspond to several of these auriferous pods. There is significant potential for additional mineralized pods along this 3km long, sheared stratigraphic horizon, which corresponds to a moderate to strong I.P. anomaly. (Assessment File 52F/07SW U-16, St. Joe Canada Inc., Kenora Resident Geologist Office) SEE GEOLOGY DEPOSIT COMMENT



Mineral Record Details

References

File - Resident Geologist files AF 52F07SW U-16

Publication Number: Date: 1996

Author:

Publisher Name:

Location: Kenora RGP


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