Ontario Geological Survey
Permanent Link to this Record:
MDI52F10NW00035
| Record Name(s) | Lone Jack - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2011-Feb-14 |
| Date Last Modified | 2023-Aug-16 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Van Horne
Latitude: 49° 43' 2.28" Longitude: -92° 55' 11.17"
UTM Zone: 15 Easting: 505783.48 Northing: 5507202.561 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F10NW
Point Location Description: south half of Lot 11, Concession I, Van Horne Township
Location Method: Conversion from MDI
Access Description: The property is accessible by an old trail that extends southeast from Pritchard Lake to the northwest shore of Guy Lake where it adjoins a portage between Guy and Bob Lakes.
1898: Some development work reported on the property. 1911: Several test pits reported to have been sunk and some stripping was conducted. (OFR5723, p.230) * see Deposit Comment - Mineralization for assay results
Feb 14, 2011 (J Bongfelt) - The occurrence is situated within mixed tholeiitic to calc-alkaline mafic to felsic metavolcanic flows and pyroclastics of the Lower Wabigoon Volcanics. The occurrence is underlain by felsic lapilli-tuff and tuff-breccia intercalated with thin layers of cherty, laminated tuff. The metavolcanics are intruded by a wide, fine-grained, northwest-trending quartz-feldspar porphyry dike. (OFR5723, p.230)
Feb 14, 2011 (J Bongfelt) - A wide, shallow, test pit has been sunk on the quartz-feldspar porphyry dike which hosts numerous northwest-trending (120º-155º), tension fracture-hosted quartz veins which are generally <16 cm wide. The dike is sericitized, carbonatized (calcium carbonate), weakly magnetic, and variably pyritic. Quartz veins are commonly rusty, red, and pyritic, containing minor chlorite and tourmaline. Another large test pit which may be part of the Lone Jack Occurrence is located 366 m northwest of the test pit at Bob Lake. The test pit has been sunk on another quartz-feldspar porphyry dike hosting numerous rusty, red, pyritic, tension fracture-hosted quartz veins. The dike is sericitized, carbonatized (calcium carbonate), weakly magnetic, and contains 3% disseminated pyrite. (OFR5723, p.230)
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Pyrite | Economic | Ore |
Feb 14, 2011 (J Bongfelt) - - A grab sample, taken by J.R. Parker, from one of the pyritic quartz veins in the test pit near Bob Lake assayed 0.27 ounce gold per ton while a grab sample taken from a quartz vein at the lake shore assayed 0.11 ounce gold per ton. - A grab sample from a quartz vein in the pit located 366 m northwest of Bob Lake, assayed 0.36 ounce gold per ton and a grab sample of the wall rock assayed 390 ppb gold. (OFR5723, p.230) - A grab sample of the altered, pyritic felsic dike assayed 330 ppb Au. This sample was taken by Jack Parker on October 29, 1985,
Part - Fourth report on the west Ontario gold region
Publication Number: ARV07-02.001 Page: 125 Date: 1998
Author: Coleman A.P.
Publisher Name: Ontario Bureau of Mines
Location:
Part - Gold fields of Lake of the Woods, Manitou and Dryden
Publication Number: ARV20-01.006 Page: 192 Date: 1998
Author: Parsons A.L.
Publisher Name: Ontario Bureau of Mines
Location:
Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River
Publication Number: MDC016 Page: 25 Date: 1976
Author: Beard R.C., Garratt G.L.
Publisher Name: Ontario Division of Mines
Location:
Mono - Geology, gold mineralization and property visits in the area investigated by the Dryden-Ignace economic geologist, 1984-1987
Publication Number: OFR5723 Page: 130 Date: 1989
Author: Parker J.R.
Publisher Name: Ontario Geological Survey
Location:
Journal - Kenora Historical File 52F/10NW00035, Lone Jack
Publication Number: Date: 2011
Author:
Publisher Name:
Location: KENORA GEOLOGY OFFICE
Journal - Kenora Property Visit File 52F/10NW00035, Bob Lake (Lone Jack) - Oct. 1985
Publication Number: Date: 2011
Author:
Publisher Name:
Location: Kenora RGP office
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