Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31M04SW00023

Record: MDI31M04SW00023

General

Commodities

Primary Commodities: Gold, Silver, Arsenic, Copper

Location

Township or Area: Strathy

Latitude: 47° 5' 27.43"    Longitude: -79° 46' 28.42"

UTM Zone: 17    Easting: 593006   Northing: 5216000    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 31M04SW

Point Location Description: Adit

Location Method: AMIS Site Visit

Access Description: East road north of railway line at east side of highway 11 at Milne Sherman road. East to gravel pit. Proceed through north end for 2.3km (0.6km from gravel pit). ONR rail 300m east. Look for rock dumps at north and south of road in open cut area.

Exploration History

1899: D. O’Connor - pitting, stripping. 1906: Temagami Milling and Mining Company - stripping, pitting, mine development. 1948-1950: Big Dan Mines Limited - DD-11-2582 ft., sampling.1965: Keevil Mining Group Ltd. - airborne geophysics. 1965: United Reef Petroleum Limited - mapping, ground geophysics, sampling. 1993: Falconbridge Limited - mapping, sampling. 1995: Wabana Exploration Inc. - airborne geophysics. 1997: Silver Century Explorations Ltd. - mapping.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Temagami

Geological Age: Archean  

Lithology

Lithology Comments

Nov 28, 2012 (A Wilson) - The deposit is located in an irregular shear zone striking N20E for about 1000 feet in mafic metavolcanics. The shear zone reportedly had a width of 50 feet. The deposit may be symmetrically zoned with a central zone of arsenopyrite and carbonate veinlets passing outwards into a zone of pyrrhotite, then pyrrhotite with carbonate veinlets and finally an outer zone of country rock intersected by narrow veinlets of carbonate.

Mineralization

Mineralization Comments

Nov 28, 2012 (A Wilson) - The sulphides are reported as being disseminated, as well as in lenses and stringers. Coleman reported that assays from the shear zone returned values up to $3.70 Au, $2.52 Ag and 14.4% As per ton. Typical assays from the ore ran from <$1.00 to $31.20 Au and Ag with an average of $5.75 Knight reported that the ore occurred in small veinlets and in grains disseminated through the rock. Moorhouse reported that ore were said to carry values in gold and silver. Selected samples collected from the vicinity of the north shaft returned assays of 0.2 oz/t Au, 2.6 oz/t Ag; 0.16 oz/t Au, 1.2 oz/t Ag and 0.12 oz/t Au and 3.4 oz/t Ag. Channel samples from the entrance of the adit returned values of 0.12 oz/t Au, 0.7 oz/t Ag and 0.08 oz/t Au and 1.2 oz/t Ag. A 4 ft section of drill core from Big Dan Mines DDH 10 returned an assay of 0.18% Cu, 0.02 oz/t Au and tr Ag over 4 feet. Grab samples collected for United Reef Petroleums returned values ranging from 0.005 oz/t Au and 0.12 oz/t Ag to 0.21 oz/t Au and 2.19 oz/t Ag. A NS trending shear zone crosses the middle of the shaft separating a massive basalt to the west from a felsic intrusive to the east. Both rocks are mineralized. Quartz veins were seen mainly in blocks. Values obtained by Falconbridge from the felsic intrusive were 244 ppm Cu, 104 ppm Zn, from the mafic volcanics were 483 ppm Cu, 262 ppm Zn and from a block with 5 % quartz veining were 2800 ppm Cu, 6560 ppm Zn and 3980 ppb Au. Thirty meters north of this shaft a small trench still at the contact of the same felsic intrusive and mafic flows returned <5 ppm Cu, 815 ppm Zn and 7.9 g/t Au. Samples from a mineralized open cut with mostly Po and some Cp. Anomalous Cu and Zn values were obtained at 15E/0+20N another mineralized open cut with sulphides up to 20 % (Py,Po,Cp). Values obtained within this area were 6120 ppm Cu, 3280 ppm Zn, 5280 ppb Au; 1820 ppm Cu, 515 ppm Zn and 641 ppm Cu, 1070 ppm Zn.

Mineral Record Details

References

Map - Chambers and Strathy townships, Nipissing District

Publication Number: M2323 Scale: 1:31,680    Date: 1976

Author: Bennett G., Innes D.G.

Publisher Name: Ontario Division 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: 25  Date: 1979

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

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology of the northeast Temagami area, District of Nipissing

Publication Number: R163 Page: 104-105  Date: 1978

Author: Bennett G.

Publisher Name: Ontario Geological Survey

Location:

Book - Resident Geologist files Clipppings, `United Reef`

Publication Number: Clippings Date: 1996

Author:

Publisher Name:

Location: Kirkland Lake RGP office

Part - Northeastern portion of the Timagami Lake area

Publication Number: ARV51-06 Page: 26  Date: 1998

Author: Moorhouse W.W.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Windy Lake and other nickel areas

Publication Number: ARV29-01.006 Page: 214-217  Date: 1998

Author: Knight C.W.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Iron ores of Nipissing District

Publication Number: ARV10.009 Page: 178  Date: 1998

Author: Miller W.G.

Publisher Name: Ontario Bureau of Mines

Location:

Map - The northeastern portion of the Timagami Lake area, District of Nipissing, Ontario

Publication Number: ARM51E Scale: 1:63,360    Date: 1997

Author: Moorhouse W.W.

Publisher Name: Ontario Dept. of Mines

Location:

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