Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C02NE00005

Record: MDI42C02NE00005

General

Mineral Record Identification
Record Name(s) Murphy Gold Mine - 1921, Amherst - 1942, Goudreau Mine - 1922, Golden Algoma - 1960, Algold Mines - 1934
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1987-May-15
Date Last Modified 2023-Apr-13
Created By
Revised By

Commodities

Primary Commodities: Gold, Silver

Secondary Commodities: Copper



Location

Township or Area: Abotossaway

Latitude: 48° 13' 53.91"    Longitude: -84° 36' .75"

UTM Zone: 16    Easting: 678205   Northing: 5344831    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C02NE

Point Location Description: precise

Location Method: AMIS Site Visit

Access Description: The site is located 6.5 kilometers, southwest of the town of Goudreau (which lies along the ACR railway). A bush road is taken using an ATV (as the road is blocked at Goudreau) directly to the site. The power line from Goudreau can also be followed to the site.



Exploration History

1921: discovery by T. Murphy. 1922: Porter Gold Mines and Goudreau Gold Mines Ltd. - 2 shafts; No 1 shaft to 400 vertical feet, No. 2 shaft to 200 vertical feet; 2751 feet drifting; operations clouded in secrecy, no qualified engineer employed, operations ceased 1926, 5 ddh (2999 ft.) in 1927. 1928: New Goudreau Gold Mines Ltd. acquired property - no work completed. 1930: optioned by Bennett-Pacaud Mines Ltd. - mine dewatered, 2 sublevels completed. 1934: Algold Mines Ltd./Amherst Gold Mines Limited - mine dewatering, completion of 932 feet of drifting; 1936-38 underground drifting and raising; 1939 - surface diamond drilling. 1940: Norgold Mines Limited - 400 ton bulk sample, 2 deep ddh. 1946: Omar Gold Mines Ltd. - property acquired, no available data. 1959: Golden Algoma Mines Ltd. - dewatering, sampling, 58 underground ddh (5444 feet); 1960 - 15 ddh (5459 feet). 1986-1987: Mascot Gold Mines Ltd - trenching, ground geophysics, mapping, 12 ddh (1900 m), in 1987 43 ddh (8500 m). 1987: International Corona Resources Ltd. - mapping. 1987-88: Prime Explorations Ltd. and Orequest Consultants - diamond drilling (55 ddh - 12 483 m), soil sampling, VLF-EM survey, mapping. 2003: Holmer Gold Mines Ltd. - 15 ddh (8335 ft).


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
ABOTOSSAWAY22 42C02NE8722 42C02NE8722
ABOTOSSAWAY17 42C02NE0950 42C02NE0950
ABOTOSSAWAY30 42C02NE0217 42C02NE0217
WPABOTOSSAWAY.9 42C07SE0009 42C07SE0009

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Tectonic Assemblage: Catfish

Geological Age: Neoarchean   Geochronological Age: 2700 MA   Geochron. Age Ref.: OFR 5888



Geology Comments

Dec 07, 2005 (A Wilson) - The Murphy Gold Mine is hosted by the western domain of the Goudreau Lake Deformation Zone (GLDZ). The GLDZ is up to 4.5 km in width and strikes roughly 100 degrees for at least 30 km. It is coincident with the major contact between cycle 2 (2720 Ma) felsic to intermediate pyroclastic metavolcanic rocks to the south, and cycle 3 (2700 Ma) massive and pillowed mafic metavolcanic rocks to the north. The western domain of the GLDZ is composed of 85 - 115 degree striking brittle and brittle-ductile high-strain zones displaying dextral oblique-slip displacement. Lineations plunge moderately to steeply to the west.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz-Carbonate Host
Quartz-Feldspar Porphyry 2 Quartz-Feldspar Host
Mafic lava flow-unsubdivided 3 Massive, Pillowed, Schistose Near

Lithology Comments

Nov 02, 2010 (A Wilson) - The quartz-carbonate vein cuts across hornfelsed intermediate to mafic pillowed and massive metavolcanic rocks and associated quartz-feldspar porphyry intrusions. The western part of the vein is bordered by fine-grained, leucocratic quartz-mica schists which grade outward into gneissic trondhjemite. The eastern end is bordered by chlorite-quartz-calcite-muscovite schists. The porphyry is considered to be an apophyse of the Gutcher Lake Stock.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
1ChalcopyriteEconomicGangue
2PyriteEconomicGangue
3PyrrhotiteEconomicGangue
4SphaleriteEconomicGangue
5ArsenopyriteEconomicGangue
SericiteAlterationSericitization1StrongReplacement
SilicaAlterationSilicification2MediumVeins
AnkeriteAlterationCarbonatization3StrongVeins
ChloriteAlterationChloritic4MediumReplacement

Mineralization Comments

Dec 07, 2005 (A Wilson) - The vein quartz is of two separate ages and the metallic minerals are associated with the second order quartz. Pyrite, pyrrhotite, chalcopyrite, sphalerite, bornite and gold are the dominant metallic minerals associated with the vein. Gold is found in cracks in the quartz and carbonate (ankerite) within the vein. The best assay from a sample taken from trenches by an OGS field party was 0.04 oz/t over 10 feet. A grab sample taken in 1990 returned a value of 0.17 oz/t from a massive quartz vein. Well defined quartz carbonate veins are much less prevalent than zones of intensely sheared and brecciated rock which have been subjected to quartz flooding. The best assays from the 1986 drilling of Mascot returned values of 2.416 oz/t Au over 3.28 ft.



Alteration Comments

Nov 02, 2010 (A Wilson) - Fe-carbonte lateration is found in both the mafic metavolcanic rocks and the felsic porphyry dikes found adjacent to the Murphy vein system. The alteration is localized in highly strained mafic metavolcanic rocks, decreases away from the main veins system to a chlorite calcite assemblage in the less deformed rocks.




Mineral Record Details

Classification
RankClassification            
1 Unknown
Characteristics
Rank Characteristic            
2 Breccia
3 Sheared
1 Stockwork

Mineral Zones - Size and Shape

Rank: 2       Structure Type: Breccia

Rank: 3       Structure Type: Shear

Rank: 1       Structure Type: Vein

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Regular 500 3 30 100 75 2720 MA OFR 5888
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Main Vein 2004 Unclassified 98059 43-101 Report, Band-Ore Resources Rock Star Property 01/12/2004 108,092 tons @ 0.392 oz/t Gold 0.392 oz/T
North Vein 1988 Unclassified 58719 Assessment File, WP Abotossaway 22 10,123 oz Au Gold 0.156 oz/T
Main Vein 1988 Unclassified 167536 Assessment File, WP Abotossaway 22 66,103 oz Au Gold 0.357 oz/T
No. 2 Shaft 1960 Unclassified 2792 OFR5587 p. 243 Above 200 ft level Gold .5 oz/T
West Open Cut 1960 Unclassified 2986 OFR5587, p. 243 Possibly above the 200 ft level, no grade recorded
No. 1 Shaft 1960 Unclassified 5184 OFR5587 Gold .13 oz/T
Production Data
Year Tonnes Commodities Reference Comment
1940 21057 Silver 10917
Gold 76202
OFR 5587, P. 238 Produced 1926, 1932, 1936-38, 1940

References

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 - 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 - Precambrian Geology, Abotossaway Township

Publication Number: OFM0223 Scale: 1:15,840    Date: 1993

Author: Sage R.P.

Publisher Name: Ontario Geological Survey

Location:


Map - Precambrian Geology Compilation Series - White River Sheet

Publication Number: M2666 Scale: 1:250,000    Date: 2001

Author: Santaguida F.

Publisher Name: Ontario Geological Survey

Location:


Part - Notes on the Goudreau gold area

Publication Number: ARV30-04.003 Page: 39-42  Date: 1998

Author: Burrows A.G.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Goudreau-Lochalsh gold area, District of Algoma

Publication Number: ARV36-02.002 Page: 65-69  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: 20-25  Date: 1998

Author: Moore E.S.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology of the Goudreau-Lochalsh area

Publication Number: ARV49-03 Page: 43-47  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: 24  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: 110  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: Date: 1983

Author: Robinson, D.

Publisher Name:

Location:


MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma

Publication Number: OFR5587 Page: 236-243  Date: 1993

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: 19-21  Date: 1992

Author: Heather K.B., Arias Z.G.

Publisher Name: Ontario Geological Survey

Location:


Mono - Seventieth annual report of the Ontario Department of Mines, volume 70, mining operations in 1960, statistical review of the mining industry for 1960

Publication Number: ARV70 Page: 29  Date: 1998

Author: Kelly T.J., Riddell G.S.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Mining operations in 1959

Publication Number: ARV69-02 Page: 23-24  Date: 1997

Author: Mines Inspection Branch

Publisher Name: Ontario Dept. of Mines

Location:


Part - Mines of Ontario in 1936

Publication Number: ARV46-01.003 Page: 22, 93  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:


Part - Mines of Ontario in 1937

Publication Number: ARV47-01.003 Page: 10, 16, 17, 84, 85  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 1938

Publication Number: ARV48-01.003 Page: 10, 16, 17, 74, 75  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:


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: 53  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999


Publication - Michipicoten Iron Ranges; Geological Survey of Canada, Memoir 147

Publication Number: GSC Memoir 147 Page: 6,35,130,143,157,160  Date: 1926

Author: Collins, W H; Quirke, T T; Thomson, E

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/100849


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