Ontario Geological Survey
Permanent Link to this Record:
MDI52F05SW00017
| Record Name(s) | Gold Sun - 1900, Porphyry Zone - 1997 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1983-Feb-03 |
| Date Last Modified | 2022-Apr-20 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Dogpaw Lake Area
Latitude: 49° 17' 56.52" Longitude: -93° 55' 25.22"
UTM Zone: 15 Easting: 432846 Northing: 5461109 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F05SW
Point Location Description: Sample 902121 location from AFRI 52F05SE2006 (Adit)
Location Method: Conversion from MDI
1800: Gold Sun Mines Ltd. drove two adits, 45 and 70 feet long and 600 feet apart, to cut the same vein. 1943: Sylvanite Gold Mines Ltd. optioned the claims, chip sampled in the longest adit, trenched, and drilled 3 DDH in 1943 totalling 198.4 m and 8 DDH in 1944 totalling 398 m. 1985: Canadian Nickel Company Ltd. drilled 3 DDH totalling 337 m. 1982: Inco optioned the property and conducted ground geophysical surveys, sampling and diamond drilling. 1985-6: Proteus Resources Inc. optioned the property and conducted an airborne geophysical survey, geological mapping, prospecting, trenching and drilled 14 DDH. 1997-8: Landis Mining Corporation conducted a soil geochemical survey, geological sampling, and a VLF-EM geophysical survey.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 44 | 52F05SW0070 | 52F05SW0070 |
| 2.18811 | 52F05SW2005 | 52F05SW2005 |
| 2.18472 | 52F05SW2004 | 52F05SW2004 |
| 2.27990 | 52F05SE2006 | 52F05SE2006 |
| 2.8607 | 52F05SW0075 | 52F05SW0075 |
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
Aug 25, 2017 (Therese Pettigrew) - Davies and Morin (1976) interpret that an older sequence (Snake Bay Formation) of mafic volcanic rocks is overlain by intermediate to felsic volcanic rock (Kakagi Lake Group). This in turn is intruded by 5 differentiated mafic to ultramafic sills. Deformation of this assemblage has crated broad anticlines and synclines, fault zones and shear zones. This resulted in zones of regional-scale permeability to hydrothermal fluids and late magmas within the fault and shear zones, along the contact between major lithological units and in other situations where ductility contrasts exist (e.g. felsic dykes in mafic rock). The property is 3 km from the Pipestone-Cameron Lake Deformation Zones, the most prominent zone of hydrothermal alteration in the region (AFRI 52F05SW2004).
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz With Iron Carbonate Alteration | Host |
|---|---|---|---|---|
| Felsic lava flow-unsubdivided | 1 | Host | ||
| Mafic lava flow-unsubdivided | 2 | Adjacent |
Aug 25, 2017 (Therese Pettigrew) - The host rock is a fine-grained, generally massive felsic volcanic that is in contact with fine-grained massive mafic rock some 25 m to the west. Running at approximately 225 degrees (roughly parallel to the mafic contact) is a 12 m wide zone of strong silica/carbonate alteration with 15-20% quartz-ankerite +/- albite stockworking. This alteration system averages 0.5-1% pyrite, but locally reaches 10-15%.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Quartz | Economic And Alteration | Gangue | Silicification | 1 | Unknown | Disseminated |
| 2 | Ankerite | Economic And Alteration | Gangue | Carbonatization | 2 | Unknown | Disseminated |
| 1 | Pyrite | Economic | Ore | ||||
| 3 | Fuchsite | Economic | Gangue |
Aug 25, 2017 (Therese Pettigrew) - The Gold Sun is described as a highly carbonatized zone carrying quartz stringers and veinlets. The zone varied in width from 60 m to 120 m and had been traced for at least 3.2 km along strike (Davies and Morin, 1976). Endurance Gold collected 15 grab samples, with assays ranging from 9 to 566 ppb gold. The best assay from the 1985 drill program by Canadian Nickel Co. was 0.120 ppm over 0.58 m Examination of assay results from an intensive sampling program by Proteus in 1985 revealed that of 404 rock samples assayed, only 24 returned results >0.5 g/t Au (ranging from 0.65-16.66 g/t Au). All of these 24 anomalous samples fall within a well-defined narrow linear corridor 3.2 km in strike length. Proteus’ Trenches 2, 3, 4 and 7 and the Porphyry Zone occur within this mineralized corridor. Proteus drilled 13 holes along a 2.2 km strike length of this mineralized zone and intersected values up to 91.9 g/t Au. The Porphyry Zone is hosted by mafic volcanics which commonly display brecciation and shearing. Shearing orientations as measured by Proteus indicate a strike of 060-075 degrees with steep to moderate SE dips. Felsic porphyritic dykes and peridotite have been identified along the length of the zone. Alteration accompanying the gold mineralization includes ankerite, calcite, pyrite, hematite, chlorite, and silicification. . In 1997 and 1998, reconnaissance sampling of the property was undertaken by Landis Mining Corp., which reported gold values up to 4.7 g/t within sheared and hydrothermally altered mafic volcanics associated with a felsic dyke along a 333 m strike length. This zone was named the Porphyry Zone.The Porphyry Zone is 300 m NW and parallel to the gold-bearing green carbonate zone that had been the focus of previous exploration programs (AFRI 52F05SW2005). Lavigne collected 3 samples from the adit entrance: MJL-97-010 (5% diss. py in Fe-carb) – 508 ppb Au; MJL-97-011 (Fe-carb+qtz veinlets+diss. py) – 114 ppb Au; MJL-97-012 (qtz) – 239 ppb. In 1945, Sylvanite took 10 chip samples in the adit and their best result was 340 ppb Au (AFRI 52F05SW2004). Neilson and Bray (1981) report that Sylvanite’s DDH #1 had assays of up to 0.42 ox over 5 ft, with two zones: the first returning assays of 0.07 oz over 15 ft or 0.10 oz over 8.9 ft and the second 0.13 oz over 19 ft or 0.25 oz over 9 ft.
Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River
Publication Number: MDC016 Page: 19 Date: 1976
Author: Beard R.C., Garratt G.L.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Cedartree Lake area, District of Kenora
Publication Number: R134 Page: 32 Date: 1976
Author: Davies J.C., Morin J.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Feasibility of small scale gold mining in northwestern Ontario (parts of the districts of Kenora, Rainy River, and Thunder Bay), volume 1, text, volume 2, appendices
Publication Number: OFR5332 Page: B-15 Date: 1981
Author: Neilson J.N., Bray R.C.E.
Publisher Name: Ontario Geological Survey
Location:
Book - Northern Miner 84-10-18, Bigstone
Publication Number: NMINER Date: 1996
Author:
Publisher Name: Northern Miner
Location:
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