Ontario Geological Survey
Permanent Link to this Record:
MDI42C03SW00056
| Record Name(s) | White Swan Showing - 1988, Mishi Leases - 2008 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 2001-Oct-23 |
| Date Last Modified | 2022-Sep-13 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Mishibishu Lake Area
Latitude: 48° 6' 49.91" Longitude: -85° 29' 10.16"
UTM Zone: 16 Easting: 612675.8 Northing: 5330064.25 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C03SW
Point Location Description: Large stripped area west of the Mishi Main Zone
Location Method: Based on Assessment
Access Description: Drive west along highway 17 from the junction of highway 17 and 101 for approximately 50 km to the Paint Lake Road (a gravel road heading south from highway 17). Drive south along the gravel road for approximately 50 km to where a west-trending bush road intersects the main road. Drive west approximately 1.5 km to the top of a hill. Walk approximately 2.5 km west along an overgrown bush road from the Mishi acces road to a stripped area on the south side of the road.
1988-94: MacMillan Gold Corporation and Granges Exploration Ltd. - airborne geophysics, stripping, channel sampling, mapping, ground geophysics, 5 ddh (420.62 m). 1997: Mishibishu Gold Corporation - channel sampling, mapping. 2011: Windarra Minerals Ltd. - ground geophysics, geochemistry, DD-4
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| WP Mishibishu Lake.54 | 42C03SW0086 | 42C03SW0086 |
| WP Mishibishu Lake.53 | 42C03SW0064 | 42C03SW0064 |
| WP Mishibishu Lake.51 | 42C03SW0027 | 42C03SW0027 |
| WP Mishibishu Lake.50 | 42C03SW0045 | 42C03SW0045 |
| WP Mishibishu Lake.45 | 42C03SW0009 | 42C03SW0009 |
| WP Mishibishu Lake.43 | 42C03SW0021 | 42C03SW0021 |
| WP Mishibishu Lake.42 | 42C03SE2001 | 42C03SE2001 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Catfish
Geological Age: Neoarchean Geochronological Age: 2.7 GA Geochron. Age Ref.: GOO VOL 1
Feb 21, 2012 (A Wilson) - All of the mineralized zones occur in the most highly strained portion of the Mishibishu Deformation Zone. The tectonic-stratigraphy strikes at 115 and dips at 45 degrees north. The Magnacon mineralized zone has a chlorite dominated structural hanging wall and a sericite dominated structural footwall. The Mishibishu Deformation zone is the largest of the deformation zones in the belt, measuring approximately 40 km in length and several hundred metres up to 1.5 km in width. The zone is located north of the Mishibishu Lake Stock and lies along the lithological contact of mafic metavolcanic rocks to the north (hanging wall) with clastic metasediments to the south (footwall) The Western MDZ is that portion of the deformation zone west of Macassa Creek. The deformation and alteration styles of the western MDZ are similar to the central MDZ, however, the intensity of strain and alteration decreases further to the west as the Pukaskwa Batholith is approached.
| Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Host |
|---|---|---|---|---|
| Mudstone | 2 | Argillite, Wacke | Sheared | Host |
| Vein | 3 | Quartz | Host | |
| Intermediate Tuff | 4 | Tuff | Footwall |
Dec 07, 2005 (A Wilson) - The host rocks have been variously interpreted to be sheared tuffaceous intermediate metavolcanics and sheared argillites/wackes. The mineralized zone contains folded and disrupted quartz-tourmaline veins that are locally brecciated.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Arsenopyrite | Economic | Gangue | ||||
| 3 | Sphalerite | Economic | Gangue | ||||
| 4 | Chalcopyrite | Economic | Gangue | ||||
| 5 | Tourmaline | Economic | Gangue |
Feb 21, 2012 (A Wilson) - Grab samples collected at surface returned assays ranging from 6.45 g/t Au to 106.30 g/t Au. Assays from diamond drilling returned assays ranging from trace to 41.14 g/t Au over 0.5 m. Average gold grades are calculated as 2.38 g/t Au over 3 m. Channel samples collected by Mishibishu Gold in 1997 returned assays as high as 44.5 g/t Au over 0.6 m. Assays from Windarra DDH M-11-14 returned 0.73 g/t Au over 1 m and 0.99 g/t Au over 1.4 m. Assays from Windarra DDH M11-17 returned 2.96 g/t Au over 5.8 m and 0.75 g/t Au over 1.2 m.
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 65 |
Date: Oct 23, 2001
Geologist: A Wilson
Notes: Gold mineralization at this showing occurs in smoky grey quartz veins and lenses, with widths between 5 and 20 cm. The host rocks are shear folded argillites and wackes. Quartz veins occupy hinges of folds in the argillites and die out along the limbs of these folds. Hinges of the folds plunge to the east at 30-40. Both S and Z shaped folds are present, although Z-shaped folds predominated. These folds are interpreted to be shear folds and are indicative of dextral movement.
Book - The structure, stratigraphy and mineral deposits of the Wawa area: Geological Association of Canada–Mineralogical Association of Canada–Society of Economic Geologists, Joint Annual Meeting, Toronto 1991, Field Trip A6
Publication Number: GACMAC Page: 57 Date: 1991
Author: Sage, R.P. and Heather, K. B.
Publisher Name: Geological Association of Canada and Mineralogical Association of Canada
Location: Timmins RGP
File - Resident Geologist files WP Mishibishu Lake.25
Publication Number: Date:
Author:
Publisher Name:
Location: SSM RGP office
Map - Geological series, Precambrian geology, Mishibishu Lake area, northeastern section, districts of Thunder Bay and Algoma
Publication Number: P2970 Scale: 1:15,840 Date: 1986
Author: Bowen R.P., Logothetis J., Heather K.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian geology, Mishibishu Lake area, Macassa Creek sheet
Publication Number: P3151 Scale: 1:15,840 Date: 1992
Author: Reid R.G., Bowen R.P., Heather K.B., Logothetis J., Reilly B.A.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geology, structure and economic geology of the Mishibishu Lake area
Publication Number: OFR5774 Page: 153-154, 159-160 Date: 1991
Author: Reid R.G., Bowen R.P., Reilly B.A., Logothetis J., Heather K.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian geology, Mishibishu Lake area, Mishibishu Lake sheet
Publication Number: P3152 Scale: 1:15,840 Date: 1992
Author: Reid R.G., Bowen R.P., Heather K.B., Logothetis J., Reilly B.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Operation Pukaskwa, University River sheet, districts of Thunder Bay and Algoma
Publication Number: P0507 Scale: 1:63,360 Date: 1997
Author: Bennett G., Thurston P.C., Giguere J.F.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Operation Pukaskwa, districts of Algoma and Thunder Bay
Publication Number: P0541 Scale: 1:126,720 Date: 1997
Author: Bennett G., Thurston P.C., Giguere J.F.
Publisher Name: Ontario Dept. of Mines
Location:
Map - University River, Algoma and Thunder Bay districts
Publication Number: M2333 Scale: 1:63,360 Date: 1976
Author: Bennett G., Thurston P.C., Giguere J.F.
Publisher Name: Ontario Division of Mines
Location:
Map - Mishibishu Lake area, District of Thunder Bay, Ontario
Publication Number: ARM49J Scale: 1:63,360 Date: 1997
Author: Evans E.L.
Publisher Name: Ontario Dept. of Mines
Location:
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