Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI32D04SW00004

Record: MDI32D04SW00004

General

Mineral Record Identification
Record Name(s) Yama Gold Mines - 1937, Cathroy-Larder Mines - 1943, Mirado Nickel Mines - 1960, Royado Mines Ltd. - 1961, Golden Shield - 1985, Mirado Gold Project - 2012
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1991-Jan-20
Date Last Modified 2023-Aug-17
Created By
Revised By

Commodities

Primary Commodities: Gold

Secondary Commodities: Silver, Zinc



Location

Township or Area: McElroy, Catharine

Latitude: 48° 0' 46.37"    Longitude: -79° 49' 44.79"

UTM Zone: 17    Easting: 587321   Northing: 5318395    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 32D04SW

Point Location Description: Open pit south of hwy 564, in north 1/2 of Lot 7, Con 6, Catharine Tp.

Location Method: AMIS Site Visit

Access Description: The property is located approximately 35 km by road southeast of the town of Kirkland Lake, Ontario, which is approximately 585 km by road north of Toronto, Ontario. The Properties are accessible from Kirkland Lake via Hwy 66 to Hwy 112, then travelling south along Hwy 112 to Hwy 564 (gravel) east, through Boston Creek and then eastward along a gravel road. A 4-wheel drive truck, snowmobile or ATV is needed to get to the property at certain times of the year as the road past Boston Creek is not regularly maintained year round. Old drill and logging roads cross the properties and are in a variety of conditions.



Exploration History

1937-43: Yama Gold Mines Limited – DD, shaft sinking, mine development, production. 1943-60: Cathroy Larder Mines – DD- 32,000 ft, underground development. 1960-1963: Mirado Nickel Mines- underground rehabilitation, DD- 37,908 ft surface and underground drilling, resource estimate. 1963: Broulan Reef Mines- DD- 5,125ft surface. 1980-83: Amax Minerals Exploration- compilation, ground geophysics, mapping and prospecting, DD-55- 30241ft, stripping and sampling. 1985-87: Golden Shield Resources Ltd- DD-101- 18752 ft, underground development, metallurgical test-work, stripping. 2012-13: Orefinders Resources Inc. – IP and ground Mag, DD-40-12,049m, trenching,


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
KL-0070/63.3963/OM73-PE69-C-81 32D04SW0201 32D04SW0201
KL-0992/63.5016/OM86-6-P-101 32D04SW0141 32D04SW0141

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Intermediate Agglomerate 1 Agglomerate Host
Intermediate Tuff 2 Tuff Host
Intermediate Tuff 3 Tuff And Lapilli Host

Lithology Comments

Apr 09, 2014 (J Suma-Momoh) - The Mirado Property lies on the north limb of a major antiformal structure. Rock types in the mine area are largely fragmental volcanics and rhyolite cut by small dykes of syenite porphyry, diorite and lamprophyre. The regional strike is northwest with steep dips to the northeast. The fragmental volcanics of the Skead assemblage vary considerably in nature, ranging from porphyritic to non-porphyritic over short distances and the percentage of fragments from abundant to very few. They may exhibit preferred or random orientation.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicGangue
2ChalcopyriteEconomicGangue
3SphaleriteEconomicGangue

Mineralization Comments

Apr 09, 2014 (J Suma-Momoh) - There are two significant mineralised zones on the Properties, both on the Mirado Property. These zones were first discovered when the property was owned by Yama and therefore older references are to the Cathroy Larder Mine. The underground development work and all of the ore mined by Yama was accessed by means of the shaft on the North Zone. Yama discovered the South Zone in the 1940s and drove crosscuts on the 250 foot and 500 foot levels to the South Zone as well as drilling it. Almost all the work on the Mirado Property since the 1960s has been focussed on the South Zone. In the North Zone, gold occurs in a number of sub-parallel quartz-calcite-sulphide and massive sulphide seams, which range in width from a fraction of an inch to 6 inches. Gold values values are erratic in the seams but up to 2 oz/ton Au were encountered in grab samples. Gold values up to 0.093 oz/t over 103.3 ft were encountered in the South Zone by Amax Minerals Exploration. All the samples taken from the property by Orefinders Resources Inc. during the site visit returned silver values ranging from 5.9 to 39.7g/t Ag, which is unusually high for Archean mesothermal lode gold deposits. Orefinders Resources conducted diamond drilling in 2013 and reported Au assay values including 2.4g/t Au over 26.7m and 5.5g/t Au over 8.75m from the South Zone; 17.5g/t Au over 91.4m and 6.0g/t Au over 54m from the North Zone.



Mineral Record Details

Classification
RankClassification            
1 Lode (Gold)
Characteristics
Rank Characteristic            
1 Stratiform
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Mirado Gold Project 2013 Inferred Mineral Resource 442000 NI43-101, 13/12/2013, p57 Gold 1.29 g/t
Cathroy-Larder 1987 Unclassified 453592 Gold 11.3 g/t
Cathroy-Larder 1972 Unclassified 660430 MDC018, p148-149 Gold 0.204 oz/T
Cathroy-Larder 1964 Unclassified 441980 NI43-101, 2012, p16 Gold 0.233 oz/T
Production Data
Year Tonnes Commodities Reference Comment
1987 91158 Gold 10231 Ounces
OFR6287 Produced 1941-44, 1957, 1987; grade 0.114 oz/t

References

Book - Property Visits 241

Publication Number: PV 241 Date: 1990

Author: Lovell, H.L.

Publisher Name:

Location: Kirkland Lake RGP office


File - Resident Geologist file KL-0472

Publication Number: Date:

Author:

Publisher Name:

Location: Kirkland Lake RGP office


MonoMap - Geology of Catharine and Marter townships, District of Timiskaming

Publication Number: R018 Page: 15  Date: 1997

Author: Grant J.A.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Catharine and Marter townships, Timiskaming District

Publication Number: M2043 Scale: 1:31,680    Date: 1997

Author: Grant J.A.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Geological Compilation of the Kirkland Lake Area, Abitibi Greenstone Belt

Publication Number: P3425 Scale: 1:100,000    Date: 2000

Author: Ayer J.A., Trowell N.F.

Publisher Name: Ontario Geological Survey

Location:


Part - Geology of McElroy and part of Boston townships

Publication Number: ARV59-06 Page: 39-44  Date: 1997

Author: Abraham E.M.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Township of McElroy and portion of Township of Boston, District of Timiskaming, Ontario

Publication Number: M1950-03 Scale: 1:12,000    Date: 1997

Author: Abraham E.M., Thomson J.E.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Gold deposits of Ontario, part 2, part of District of Cochrane, districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and counties of southern Ontario

Publication Number: MDC018 Page: 148-149  Date: 1979

Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.

Publisher Name: Ontario Geological Survey

Location:


Publication - Yama Gold Mines Limited, Clippings

Publication Number: Date: 1939

Author:

Publisher Name: NMINER

Location: Kirkland Lake RGP office


Publication - Mirado Nickel Mines Limited, Clippings

Publication Number: Date: 1974

Author:

Publisher Name: NMINER

Location: Kirkland Lake RGP office


Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file

Publication Number: OFR5467 Page: G0253  Date: 1983

Author: Hodgson C.J.

Publisher Name: Ontario Geological Survey

Location:


Publication - Technical Report on the Mirado and MZ Properties, Ontario, Orefinders Resources Inc., 65p.

Publication Number: NI43-101 Date: 2012

Author: J. Reddick, J. Lavigne

Publisher Name:

Location: Kirkland Lake RGP office


Publication - Mineral Resources Evaluation Technical Report for the Mirado Gold Project, Ontario; Orefinders Resources Inc., 111p.

Publication Number: NI43-101 Date: 2012

Author: L. Weiershäuser and D. El-Rassi

Publisher Name:

Location: Kirkland Lake RGP office


Publication - Mirado Gold Mine Project, Technical and Financial Evaluation, Vol. 1 and 2 (Feasibility Study)

Publication Number: Date: 1986

Author: Bullock Engineering Corporation

Publisher Name: Golden Shield Resources Ltd.

Location: Kirkland Lake RGP office


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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office