Ontario Geological Survey
Permanent Link to this Record:
MDI41N14NE00004
| Record Name(s) | Mystery Showing - 1988 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Sep-16 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Franchere
Latitude: 47° 58' 11.13" Longitude: -85° 9' 42.91"
UTM Zone: 16 Easting: 637190.21 Northing: 5314573.95 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41N14NE
Point Location Description: Stripped area
Location Method: Based on Assessment
Access Description: Access to the area is by helicopter from Wawa or by boat from Michipicoten Harbour and then by overland traverse.
1983-1989: New Beginnings Resources Inc. - airborne geophysics, ground geophysics, mapping, stripping, soil survey, IP survey, 4 ddh (1350.8 ft).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| WP Franchere-4 | 41N14NE0009 | 41N14NE0009 |
| WP Franchere-9 | 41N14NE0015 | 41N14NE0015 |
| WP Franchere-1 | 41N14NE0500 | 41N14NE0500 |
| WP Franchere-2 | 41N14NE0002 | 41N14NE0002 |
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 P. 494
Dec 07, 2005 (A Wilson) - The Mishibishu Deformation Zone (MDZ) is the largerst 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 metavolcancis to the north, with clastic metasediments to the south. The Eastern Mishibishu Deformation Zone becomes narrower approaching Lake Superior where the zone transects the external granitoids east of the greenstone belt. Deformation and alteration are less pervasive and shear zones become more dicrete than in the central MDZ. Stretchin lineations plunge to the east. The style of deformation is more brittle-ductile in the eastern MDZ. Alteration is less pervasive than, yet similar to, other zones within the belt.
| Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Quartz-Sericite | Host |
|---|---|---|---|---|
| Mafic Tuff | 2 | Tuff | Footwall | |
| Intermediate Crystal Tuff | 3 | Crystal Tuff | Hanging Wall |
Dec 07, 2005 (A Wilson) - The showing consists of a highly sheard quarz-sericite schist with up to 30% finely disseminated arsenopyrite within silicified intermediate metavolcanic crystal tuffs. The footwall consists of intercalated mafic metavolcanic tuffs and tuff breccias and quartz diorite sills. Highly silicified sericitic intermediate crystal tuffs with discontinuous quartz-carbonate stringers intercalated with mafic tuff-breccia lenses on the hanging wall.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Arsenopyrite | Economic | Gangue | ||||
| 2 | Tourmaline | Economic | Gangue | ||||
| 3 | Pyrite | Economic | Gangue | ||||
| 4 | Pyrrhotite | Economic | Gangue | ||||
| 5 | Chalcopyrite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - Grab samples returned values up to 2.86 oz/t Au. Diamond drilling by New Beginnings returned only trace gold.
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| 2 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 4.5 | .3 |
Date: Aug 13, 2001
Geologist: A Wilson
Notes: The showing is confined to the intersection between two minor faults within the quartz sericite schist.
Map - Precambrian geology, Mishibishu Lake area, Dog Harbour sheet
Publication Number: P3157 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 - 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:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 202-203 Date: 1991
Author: Frey E.D., Stewart R.C.
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:
Mono - Geology, structure and economic geology of the Mishibishu Lake area
Publication Number: OFR5774 Page: 162 Date: 1991
Author: Reid R.G., Bowen R.P., Reilly B.A., Logothetis J., Heather K.B.
Publisher Name: Ontario Geological Survey
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:
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