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Ontario Geological Survey
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MDI42C08SW00010
| Record Name(s) | Edwards Gold Mine - 1933, Potvin-Edwards Showing - 1924, Shaynee Zone - 1963 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1982-Nov-09 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver
Township or Area: Jacobson
Latitude: 48° 18' 54.77" Longitude: -84° 21' 29.57"
UTM Zone: 16 Easting: 695854 Northing: 5354709 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C08SW
Point Location Description: portal
Location Method: Field Visit
Access Description: The property is located approximately 100 km from the town of Wawa, east of the town of Dubreuilville. Access to the property is via highway 17 west, to highway 519 (Dubreuilville Road) and then via the Goudreau Road for approximately 24 km.
1924: P. Edwards - discovery, trenching and stripping. 1925-26: property optioned to Hollinger Gold Mines by P. Edwards; mapping. 1933: property taken over by Gold Lands Syndicate of Algoma; inclined shaft sinking; work discontinued when shaft reached 97 feet and crosscut 60 ft long had been completed. 1935-37: property taken over by Edwards Gold Mines; 400 feet of lateral work; shaft completed to 300 feet by 1936, 3500 ft underground diamond drilling, mine in production in 1938. 1938-44: Edwards Consolidated Gold Mines Limited formd to succeed Edwards Gold Mines - surface mapping, shaft dewatering, 10 ddh (2738 ft) 1960: property staked by A. Paquette 1960-69: Shaynee Consolidated Mines - dewatering; 54 ddh (6000 ft) between 1962-64; magnetometer survey in 1964. 1968: Michael syndicate - ground geophysical survey, 1 ddh . 1971 - Lake George Mines: geological mapping, 5 ddh. 1976: Gulf Minerals - HLEM survey, 3127 ft diamond drilling. 1981 - J. C. Potvin; VLF, magnetometer survey. 1982: Anaconda Canada Explorations Ltd. - mapping, ground geophysical surveys, geochemical surveys, 8 ddh (2145 ft). 1986-1993: Spirit Lake Explorations/Vencan Gold - ground geophysical surveys, basal till sampling, stripping, channel sampling, diamond drilling (126 holes - 73,648 ft), mapping, preparation for bulk sampling, metallurgical testing of ore. 1996-2002- River Gold Mines; agreement signed with Vencan, property goes into seasonal production. 2000: River Gold Mines - complete purchase of two leased claims containing Edwards deposit from VenCan Gold. 2001: River Gold Mines Ltd. - in early July the company placed the mine on care and maintanence because of diminishing reserves and the low price of gold. 2001-present: Strike Minerals Inc: DD-41-10,596 m, sampling, dewatering, underground development, test mining
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| JACOBSON 59 | 42C08SW0088 | 42C08SW0088 |
| JACOBSON 17C1 | 42C08SW0129 | 42C08SW0129 |
| JACOBSON 18A1 | 42C08SW0169 | 42C08SW0169 |
| JACOBSON 53A1 | 42C08SW0096 | 42C08SW0096 |
| WP Jacobson-15 | 42C08SW0038 | 42C08SW0038 |
| WP Jacobson-36 | 42C08SW0010 | 42C08SW0010 |
| JACOBSON 22A1 | 42C08SW0090 | 42C08SW0090 |
| JACOBSON 19C1 | 42C08SW0146 | 42C08SW0146 |
| WP Jacobson-49 | 42C08SW0001 | 42C08SW0001 |
| JACOBSON 48 | 42C08SW0100 | 42C08SW0100 |
| WP Jacobson-38 | 42C08SW0003 | 42C08SW0003 |
| JACOBSON 41A1 | 42C08SW0121 | 42C08SW0121 |
| WPJACOBSON.59 | 20000018814 | 20000018814 |
| JACOBSON 18C1 | 42C08SW0170 | 42C08SW0170 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: OFR5888
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - The deposit lies within the Eastern 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 systms within each of the 070-075 striking high-strain zones within the deformation zone. The Eastern Domain of the GLDZ is 9 km long and 2 km wide and contains narrow brittle and brittle-ductile high-strain zones displaying dextral, oblique slip displacement. Mineral lineations at the Cline Lake area have a consistent shallow plunge to the east and become moderately to steeply plunging in the Godin Lake area. Within the eastern domain, high-strain zones (as well as laminated, quartz-tourmaline and/or quartz-Fe-carbonate veins, fractures and flesic porphyry dikes) are dominantly parallel or at low angles to the east-striking regional foliation. The eastern domain is truncated on the west by the NW-trending Maskinonge Lake Fault.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Sheared | Hanging Wall |
|---|---|---|---|---|
| Vein | 2 | Quartz | Host | |
| Quartz-Feldspar Porphyry | 3 | Quartz Feldspar | Footwall |
Dec 07, 2005 (A Wilson) - The property is underlain by mafic metavolcanic rocks with more felsic metavolcanics to the extreme south. Outcrop is limited, but iron formations of various size and extent are found in the southern part of the claim group. The mafic metavolcanics are intruded by quartz and felspar porphyry dikes, minor granodiorite and other felsic rocks. Thin bands of iron formation are found intercalated with the metavolcanics. All units are cross cut by later diabase and lamprophyre dikes. The Cline-Edwards shear is the dominant structure in the area. The shear varies from 55 to 60 feet in width and is comprosed primarily of chlorite, actinolite, sericite and quartz.
| 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 | Pyrrhotite | Economic | Gangue | ||||
| 3 | Sphalerite | Economic | Gangue | ||||
| 4 | Galena | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | Medium | Stockwork | ||
| Sericite | Alteration | Sericitization | 2 | Medium | Stockwork |
Dec 07, 2005 (A Wilson) - Gold mineralization occurs in quartz veins oriented subparallel to parallel to the high-strain zone boundaries. The quartz from the No. 1 Vein contained abundant pyrite and considerable amounts of visible gold. Auriferous quartz veins are grey-white to blue-grey in colour and individual veins range from several inches in width of ten feet or more. The sometimes occur in multiple sets with significant overall width, especially when found in quartz porphyry units. Visible gold occurs as discrete specks and grains and often as clouds or clusters. Margins of the quartz veins exhibit greater concentrations of sulphides. Assays from the 2003 drilling returned values up to 15.037 oz/t Au over 1.5 ft in the Porphyry vein.
Dec 07, 2005 (A Wilson) - Within the high strain zones the mafic rocks are altered to chlorite-biotite-Re-carbonate-pyrite schists, while the quartz-feldspar porphyry dikes are altered to sericite-quartz-Fe-carbonate- pyrite schists that carry low gold values. There is a zonation in carbonate mineralogy from Fe-carbonate adjacent to the mineralizaed veins outward to a peripheral halo of calcite. The alteration is of limited extent and confined to individual high-strain zones.
| Rank | Classification |
|---|---|
| 1 | Replacement |
| Rank | Characteristic |
|---|---|
| 2 | Sheared |
| 1 | Stockwork |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 182 | 60 | 259 | 315 | 80 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 137 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 50 | .5 | 300 | 77 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 182 | 229 | 320 | 80 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 106 | 61 | 140 | 90 |
Date: Nov 08, 2000
Geologist: A Wilson
Notes: There are several mineralized horizons at the Edwards property. Most horizons ae located south of the Cline-Edwards shear and dip north and under this structure. The Porphyry Horizon is composed of quartz veining closely associated with a quartz porphyry unit. The Carbonate Horizon has no marker unit but demonstrates a wide alteration halo with silicification and calcium carbonatization increasing towards the veining and becoming increasingly pyritic towards the margins. The Carbonate Horizon is subparallel to the Porphyry Horizon and is located to the south. The Shaynee Horizon was originally discovered in 1963. It appears to parallel the Carbonate Horizon. It has no marker unit but demonstrates an alteration halo of increased silicification and carbonatization. It also exhibits pyritic margins in proximity to the quartz veining. The New North Horizon lies north of the Porphyry and south of the Cline-Edwards shear. The Edwards Zone is comprised of four distinct horizons. All of these horizons are roughly sub-parallel and exhibit steep easterly plunging high grade shoots.
Date: Nov 09, 2000
Geologist: A Wilson
Notes: There are several mineralized horizons at the Edwards property. Most horizons ae located south of the Cline-Edwards shear and dip north and under this structure. The Porphyry Horizon is composed of quartz veining closely associated with a quartz porphyry unit. The Carbonate Horizon has no marker unit but demonstrates a wide alteration halo with silicification and calcium carbonatization increasing towards the veining and becoming increasingly pyritic towards the margins. The Carbonate Horizon is subparallel to the Porphyry Horizon and is located to the south. The Shaynee Horizon was originally discovered in 1963. It appears to parallel the Carbonate Horizon. It has no marker unit but demonstrates an alteration halo of increased silicification and carbonatization. It also exhibits pyritic margins in proximity to the quartz veining. The New North Horizon lies north of the Porphyry and south of the Cline-Edwards shear. The Edwards Zone is comprised of four distinct horizons. All of these horizons are roughly sub-parallel and exhibit steep easterly plunging high grade shoots.
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Edwards | 2000 | Unclassified | 96000 | River Gold Mines 2000 Annual Report | Gold 11.31 Grams per Tonne | |
| Edwards | 1999 | Probable | 90600 | River Gold Mines, Annual Information Form, April 14, 2000 | based on cut-off grade of 3.5 g/t Au over 1.5 m | Gold 14.46 Grams per Tonne |
| Edwards | 1999 | Proven | 85900 | River Gold Mines, Annual Information Form, April 14, 2000 | based on cut-off grade of 3.5 g/t Au over 1.5 m | Gold 12.1 Grams per Tonne |
| Carbonate | 1997 | Probable | 117800 | River Gold Mines Financial Statement 1998 | Gold 12.59 Grams per Tonne | |
| Carbonate | 1997 | Proven | 38300 | River Gold Mines Financial Statement 1998 | Gold 10.56 Grams per Tonne | |
| Carbonate | 1996 | Probable | 123600 | River Gold Mines, Financial Report 1998 | Gold 17.27 Grams per Tonne |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 2002 | 8800 |
Gold 57465 Grams |
G. Mannard | 8800 tonnes @ 7.5 g/t (2027 oz) from stockpile |
| 2001 | 76000 |
Gold 754270 Grams |
River Gold Mines 2001 Annual Report, p. 2 | average grade 8.8 g/t |
| 2000 | 103093 |
Gold 1035785 Grams |
River Gold Mines 200 Annual Report | recovered grade 10.15 g/t Au |
| 1999 | 105300 |
Gold 1330957 Grams |
River Gold Mines, Annual Information Form, April 14, 2000, p.9 | recovered grade 11.71 g/t Au |
| 1998 | 34162 |
Gold 438219 Grams |
River Gold Mines, Annual Information Form, April 14, 2000, p. 9 | recovered grade 11.70 g/t Au |
| 1997 | 62963 |
Gold 1037117 Grams |
River Gold Mines, Annual Information Form, April 14, 2000, p. 9 | recovered grade 15.02 g/t Au |
| 1938 | 1837 |
Silver 1262 Ounces Gold 16470 Ounces |
ARV048 -1 p. 17 |
File - Resident Geologist files Jacobson-0020, WP Jacobson.61, WP Jacobson.62
Publication Number: Date:
Author:
Publisher Name:
Location: SSM RGP office
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:
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:
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 - 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:
Folio - Jacobson Township, District of Algoma
Publication Number: GDIF111 Date: 1997
Author: Sault Ste Marie RGO
Publisher Name: Ontario Geological Survey
Location:
Part - Goudreau-Lochalsh gold area, District of Algoma
Publication Number: ARV36-02.002 Page: 82 Date: 1998
Author: Gledhill T.L.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the Goudreau-Lochalsh area
Publication Number: ARV49-03 Page: 41-42 Date: 1997
Author: Bruce E.L.
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: 38 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: 212 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: 7 Date: 1983
Author: Robinson, D.
Publisher Name:
Location: Timmins RGO
MonoMap - Geology of Aguonie, Bird, Finan and Jacobson Townships, District of Algoma
Publication Number: OFR5588 Page: 156-159 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Part - The Michipicoten-Missinaibi area
Publication Number: ARV44-08.001 Page: 12 Date: 1997
Author: Burwash E.M.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mines of Ontario in 1938
Publication Number: ARV48-01.003 Page: 109 Date: 1997
Author: Sinclair D.G., Cave A.E., Tower W.O., Taylor J.B., Douglass D.P., Bayne A.S., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mines of Ontario in 1937
Publication Number: ARV47-01.003 Page: 120-121 Date: 1997
Author: Sinclair D.G., Tower W.O., Taylor J.B., Douglass D.P., Bayne A.S., Cave A.E., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mines of Ontario in 1936
Publication Number: ARV46-01.003 Page: 131 Date: 1997
Author: Sinclair D.G., Tower W.O., Bayne A.S., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Geological and structural setting of gold mineralization in the Goudreau-Lochalsh area, Wawa gold camp
Publication Number: OFR5832 Page: 36-37 Date: 1992
Author: Heather K.B., Arias Z.G.
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: 158 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Book - Strike Minerals - Press releases
Publication Number: Clippings Date: 2003
Author:
Publisher Name:
Location: Timmins RGO
Book - Summary Report on the Edwards Mine Property,
Publication Number: NI 43-101 Date: 2004
Author: Bruce Edgar
Publisher Name:
Location: Timmins RGO
Publication - Edwards Mine Property, Technical Report, 56p.
Publication Number: NI 43-101 Date: 2013
Author: Bruce Edgar
Publisher Name:
Location: Timmins RGO
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