Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI32D12NW00016

Record: MDI32D12NW00016

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper

Location

Township or Area: Iroquois Point Area

Latitude: 48° 41' 52.85"    Longitude: -79° 59' 22.33"

UTM Zone: 17    Easting: 574353.276   Northing: 5394378.915    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 32D12NW

Point Location Description: Pit

Location Method: Conversion from MDI

Access Description: Point Located: A point 17.08 km north and 2.69 km west of the southwest corner of Rand Township.

Exploration History

1906: Miller (1907) reported that the Mosher brothers prospected along the south shore of Lake Abitibi. 1909: Baker (1909) reported that near Point 48A on the south shore of Lake Abitibi, the Mosher brothers staked claims and excavated a 13 foot deep shaft on a 5-24 inch wide quartz vein containing pyrite and chalcopyrite which was hosted by pink granite. A picked sample from the occurrence is reported by Baker to have assayed 0.19 ounce of gold per ton. 1981: Carling Copper Mines Ltd. completed magnetic and VLF electromagnetic surveys. 1982: Samples obtained by Jensen (1982) contained only traces of gold.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Archean  

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (D Guidon) - Geological mapping (Jensen 1982; Jensen and Langford 1985; Jensen and Baker 1986; Johnstone and Steele 1989; Gupta and Johnstone 1987; Vagners and Courtney 1985; McClenaghan et al.1988, 1987; Steele 1988) indicates that the occurrence area is underlain mainly by weakly metamorphosed (greenschist or lower metamorphic grade) southeast striking, steeply dipping, and southwest facing calc alkalic volcanic and/or tuffaceous rock of the (Archean) Hunter Mine Group. These supracrustal rocks occupy part of the south limb of a southeast striking syncline.

Dec 07, 2005 (C Salo) - Geological mapping (Jensen 1982; Jensen and Langford 1985; Jensen and Baker 1986; Johnstone and Steele 1989; Gupta and Johnstone 1987; Vagners and Courtney 1985; McClenaghan et al. 1988, 1987; Steele 1988) indicates that the occurrence area is underlain mainly by weakly metamorphosed (greenschist or lower metamorphic grade) southeast striking, steeply dipping, and southwest facing calc alkalic volcanic and/or tuffaceous rock of the (Archean) Hunter Mine Group. These supracrustal rocks occupy part of the south limb of a southeast striking syncline.

Lithology

Lithology Comments

Dec 07, 2005 (D Guidon) - The occurrence area is intruded by numerous dikes and is interpreted to be no more than several hundred metres from the margin of the (Archean) Lake Abitibi Batholith, a sodic affinity (trondhjemitic and tonalitic) composite felsic intrusion. Anomalous gold tenors are reported (Baker 1909, Jensen 1982) to be associated with irregularly developed north striking quartz-carbonate veins which vary from 5 to about 24 inches in width and which have associated with them pyrite and chalcopyrite. The veins are reported to be hosted by pink granite (probably dike material) intruding (calc alkalic) volcanic and tuffaceous rocks and green carbonate. Baker (1909) reported that a sample from the occurrence assayed about 0.19 ounce of gold per ton; Jensen (1982) reported that a grab sample from the same occurrence assayed only traces of gold.

Mineralization

Mineralization Comments

Dec 07, 2005 (C Salo) - The occurrence area is intruded by numerous dikes and is interpreted to be no more than several hundred metres from the margin of the (Archean) Lake Abitibi Batholith, a sodic affinity (trondhjemitic and tonalitic) composite felsic intrusion. Anomalous gold tenors are reported (Baker 1909, Jensen 1982) to be associated with irregularly developed north striking quartz- carbonate veins which vary from 5 to about 24 inches in width and which have associated with them pyrite and chalcopyrite. The veins are reported to be hosted by pink granite (probably dike material) intruding (calc alkalic) volcanic and tuffaceous rocks and green carbonate. Baker (1909) reported that a sample from the occurrence assayed about 0.19 ounce of gold per ton; Jensen (1982) reported that a grab sample from the same occurrence assayed only traces of gold.

Mineral Record Details

References

Map - Geological series, Precambrian geology of the Partridge Point area, Lightning River area, Cochrane District

Publication Number: P2429 Scale: 1:15,840    Date: 1982

Author: Jensen L.S.

Publisher Name: Ontario Geological Survey

Location:

Map - Geological series, preliminary results of bedrock samples from the sonic drilling, 1985, Lake Abitibi-Matheson area, District of Cochrane

Publication Number: P2986 Scale: 1:100,000    Date: 1986

Author: Jensen L.S., Steele K.G., McClenaghan M.B., Baker C.L.

Publisher Name: Ontario Geological Survey

Location:

Part - Lake Abitibi Area

Publication Number: ARV18-01.009 Page: 270  Date: 1998

Author: Baker M.B.

Publisher Name: Ontario Bureau of Mines

Location:

Map - Geological series, bedrock samples from the sonic drilling program 1987, Matheson area, District of Cochrane

Publication Number: P3114 Scale: 1:100,000    Date: 1989

Author: Johnstone R.M., Sutcliffe R.H., Steele K.G., Baker C.L., McClenaghan M.B.

Publisher Name: Ontario Geological Survey

Location:

Map - Geological series, Quaternary geology, Lightning River area, District of Cochrane

Publication Number: P2734 Scale: 1:50,000    Date: 1985

Author: Vagners U.J., Courtney S.J.

Publisher Name: Ontario Geological Survey

Location:

Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area

Publication Number: OFR5735 Page: 1294-1297  Date: 1990

Author: Bath A.C.

Publisher Name: Ontario Geological Survey

Location:

Article - A gravity survey in the Iroquois Falls-Lake Abitibi area, District of Cochrane

Publication Number: MP137.074 Page: 411-14  Date: 1997

Author: Gupta V.K., Johnstone R.M.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology and petrogenesis of the Archean Abitibi belt in the Kirkland Lake area, Ontario

Publication Number: MP123 Date: 1985

Author: Jensen L.S., Langford F.F.

Publisher Name: Ontario Geological Survey

Location:

Part - Abitibi-Night Hawk gold area, District of Timiskaming

Publication Number: ARV28-02.001 Date: 1998

Author: Knight C.W., Burrows A.G., Hopkins P.E., Parsons A.L.

Publisher Name: Ontario Bureau of Mines

Location:

Article - Quaternary geology and geochemical exploration in the Matheson area

Publication Number: MP136.294 Page: 200-214  Date: 1997

Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.

Publisher Name: Ontario Geological Survey

Location:

Article - Quaternary geology and geochemical exploration in the Matheson area

Publication Number: MP140.294 Page: 112-123  Date: 1997

Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.

Publisher Name: Ontario Geological Survey

Location:

Part - Lake Abitibi gold deposits

Publication Number: ARV16-01.009 Date: 1998

Author: Miller W.G.

Publisher Name: Ontario Bureau of Mines

Location:

Article - Reconnaissance till sampling program, Matheson-Lake Abitibi area, District of Cochrane

Publication Number: MP141.081 Page: 472-477  Date: 1997

Author: Steele K.G.

Publisher Name: Ontario Geological Survey

Location:

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