Ontario Geological Survey
Permanent Link to this Record:
MDI42C08SW00022
| Record Name(s) | Michael Syndicate Shaft - 1927, McFadden Occurrence - 1931, Michael (Syndicate) Shaft - 1983 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1983-Feb-04 |
| Date Last Modified | 2022-Sep-08 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Jacobson
Latitude: 48° 19' 6.46" Longitude: -84° 24' 1.7"
UTM Zone: 16 Easting: 692709 Northing: 5354963 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C08SW
Point Location Description: Shaft on patented claim SSM 4200
Location Method: Field Visit with GPS
Access Description: Access is via an 18 km all-weather gravel road that turns off of highway 519 just west of the town of Dubreuilville. Dubreuilville is on highway 519, 44 km east of the junction of Highway 17 and 519. From the junction of the old and new Goudreau Roads, drive east for approximately 4 km. A disused bush road intersects the old Goudreau Road on the north side. The shaft is located appoximately 2 km along this road.
Pre-1927: R. Pinard - discovery. 1928-31: Michael Syndicate - sampling, trenching, 21 ft deep inclined shaft. 1960's: Algoma Steel Corporation - trenching and sampling. 1977: Gulf Minerals - diamond drilling. 1983-84: Canamax Resources Incorporated - ground geophysical survey, mapping, channel sampling, 5 ddh (358 m).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Jacobson-0022-A1 | 42C08SW0090 | 42C08SW0090 |
| Finan-0044 | 42C08SW0058 | 42C08SW0058 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Nov 16, 2010 (A Wilson) - The deposit lies within the Western Domain of the Goudreau Lake Deformation Zone. The GLDZ is up to 4.5 km in width and strikes in a gentle sigmoid-form for at least 30 km, subparallel to the stratigraphy and the regional foliation. In the immediate Goudreau-Lochalsh area, the GLDZ is coincident with a major contact between Cycle 2 and Cycle 3 volcanics. There is a strong structural control of the gold-bearing quartz veins systems within each of the 070-075° striking high-strain zones within the deformation zone. The Western Domain has been studied in less detail than the other domains of the deformation zone. It appears to be similar to the eastern domain in terms of high-strain zone orientations and deformation style. The western domain is composed of 85 degree and 115 degree-striking brittle and brittle-ductile high-stain zones displaying dextral oblique-slip displacement. Lineations plunge moderately to the west. The shaft lies on the Maskinonge Lake Fault.
| Rock Type | Rank | Composition | Texture | Relationship | Breccia-unsubdivided | 1 | Quartz Stockwork | Host |
|---|---|---|---|---|
| Vein | 2 | Stockwork | Host | |
| Mafic lava flow-unsubdivided | 3 | Sheared | Contains |
Nov 16, 2010 (A Wilson) - Gold mineralization is associated with disseminated and fracture controlled chalcopyrite and pyrite within an intensely silicified and quartz vein stockworked fault-breccia. A diabase dike is located to the immediate east of the shaft. Along the fault, strongly epidotized mafic metavolcanic rocks in the west are juxtaposed against mafic metavolcanic rocks, felsic metavolcanic rocks and iron stones to the east.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Chalcopyrite | Economic | Gangue | ||||
| Epidote | Alteration | Epidotization | 1 | Strong | Replacement | ||
| Calcite | Alteration | Carbonatization | 2 | Strong | Replacement | ||
| Silica | Alteration | Silicification | 3 | Strong | Stockwork |
Nov 16, 2010 (A Wilson) - Grab samples collected by Canamax in the vicinity of the shaft returned values ranging from 0.04 ppm Au to 10.97 ppm Au. The best values were obtained from samples taken from the muck pile next to the shaft. A grab sample collected by Algoma Steel in 1961 returned an assay of 0.02 oz/t Au over 9 feet. Three grab samples collected from the muck pile by the OGS in 1989 returned values of 0.42, 0.01 and 0.02 oz/t Au. Gold is associated with disseminated and fracture controlled chalcopyrite and pyrite within an intensely silicified and stockworked fault breccia.
Nov 16, 2010 (A Wilson) - Epidote and calcite alteration minerals are common, while typical gold-associated alteration minerals such as sericite, biotite and Fe-carbonate are not observed.
| Rank | Classification |
|---|---|
| 1 | Replacement |
| Rank | Characteristic |
|---|---|
| 2 | Breccia |
| 1 | Fault |
| 3 | Stockwork |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 7 |
Date: Nov 15, 2000
Geologist: A Wilson
Notes: The shaft is enclosed by a low fence. Numerous pits and trenches are observed in the same area. The Maskinonge Lake Fault, a regional transverse fault, hosts both the Michael Syndicate Shaft and the Canamax Breccia Zone. This regional 145°-striking fault is one of many faults that sinistrally displaces the stratigraphy and the regional deformation structures.
Map - Goudreau-Lochalsh area, District of Algoma, Ontario
Publication Number: ARM36B Scale: 1:63,360 Date: 1998
Author: Gledhill T.L., Collins W.H., Thomson E.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Goudreau gold area, District of Algoma, Ontario
Publication Number: ARM40E Scale: 1:31,680 Date: 1997
Author: Moore E.S.
Publisher Name: Ontario Dept. of Mines
Location:
Folio - Jacobson Township, District of Algoma
Publication Number: GDIF111 Date: 1997
Author: Sault Ste Marie RGO
Publisher Name: Ontario Geological Survey
Location: Timmins RGP
Map - Goudreau-Lochalsh area, District of Algoma, Ontario
Publication Number: ARM49G Scale: 1:31,680 Date: 1997
Author: Bruce E.L.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian geology, Jacobson Township
Publication Number: P3170 Scale: 1:15,840 Date: 1990
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geological and structural setting of gold mineralization in the Goudreau-Lochalsh area, Wawa gold camp
Publication Number: OFR5832 Page: 32 Date: 1992
Author: Heather K.B., Arias Z.G.
Publisher Name: Ontario Geological Survey
Location:
Map - Michipicoten area, compilation sheet, District of Algoma
Publication Number: P0184 Scale: 1:126,720 Date: 1997
Author: Goodwin A.M.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological compilation series, Wawa sheet, districts of Algoma and Sudbury
Publication Number: P0640 Scale: 1:126,720 Date: 1997
Author: Leahy E.J., Rupert R.J., Giblin P.E., Giguere J.F.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Part - Goudreau-Lochalsh gold area, District of Algoma
Publication Number: ARV36-02.002 Page: 81-82 Date: 1998
Author: Gledhill T.L.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Goudreau and Michipicoten gold areas, District of Algoma
Publication Number: ARV40-04.001 Page: 30-32 Date: 1998
Author: Moore E.S.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 44 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 219 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Book - Gold Occurrences of the Wawa-Missinabie Area, unpublished report
Publication Number: Robinson Page: 54 Date: 1983
Author: Robinson, D.
Publisher Name:
Location: Timmins RGP
MonoMap - Geology of Aguonie, Bird, Finan and Jacobson Townships, District of Algoma
Publication Number: OFR5588 Page: 151-152 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 184 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Article - Geological setting of gold mineralization in the Goudreau-Lochalsh area, District of Algoma
Publication Number: MP137.024 Date: 1997
Author: Heather K.B., Arias Z.G.
Publisher Name: Ontario Geological Survey
Location:
Publication - Michipicoten Iron Ranges; Geological Survey of Canada, Memoir 147
Publication Number: GSC Memoir 147 Page: 158-160 Date: 1926
Author: Collins, W H; Quirke, T T; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100849
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office