Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI32D04SE00019

Record: MDI32D04SE00019

General

Commodities

Primary Commodities: Gold

Location

Township or Area: McVittie

Latitude: 48° 7' 3.43"    Longitude: -79° 39' 54.12"

UTM Zone: 17    Easting: 599355   Northing: 5330235    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 32D04SE

Point Location Description: Shaft

Location Method: Conversion from MDI

Access Description: Cheminis Mine is located 4.6 km northeast along Hwy. 66 from the village of Larder Lake.

Exploration History

1937-1938 - Diamond drilling by Cheminis Gold Mines Limited. 1938-1940 - 3 compartment shaft sunk to 553 feet and 4929 feet of lateral developemtn on 4 levels and 10319 feet of diamond drilling. 1941 - Property aquired by Amalgamted Larder Mines Limited. 1975 - Amalgamated Larder drilled 10 holes between the Omega Mine in the west and the Barber Larder in the east. 1978-1980 - Kerr Addison Mines drilled a series of short holes along the Larder Lake Break to further define near surface open pittable gold depsoits. 1990 - Northfield Minerals begins underground bulk sampling program. 1991-1996 - Northfield Minerals produce gold. Milling done at either Kerr mill, Macassa mill or Holt-McDermott mill. 1998-2002 - joint venture with FNX Mining. Diamond drilling, stripping sampling. 2003-2004 - NFX completed diamond drilling and re-acquired 25% JV from FNX. 2541 m diamond drilling, ground magnetic survey. 2005-2008 - Option by Maximus to acquire 60%. 3047 m of diamond drilling on Bear Lake and 13,878 m of diamond drilling on Cheminis and Fernland. 2008 - NFX and Maximus became Bear Lake Gold Ltd. 2008-2011 - Diamond drilling on Bear lake. last drilling on Cheminis 2006. NI 43-101 resource calculation on Cheminis May 2011.

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Tectonic Assemblage: Timiskaming

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (D Guidon) - The deposit is located in a narrow zone (approximately 500 feet thick) of komatiitic and tholeiitic volcanic and sedimentary rocks wedged between the Timiskaming Assemblage sedimentary and alkalic volcaniclastic rocks to the north and the Hearst Assemblage sedimentary rocks to the south. The wedge follows the trace of the Larder Lake Deformation Zone and dips 65o to 70o to the south. The Larder Lake Deformation Zone is a major structure extending from Cadillac, Quebec in the east to beyond Matachewan in the west. Komatiitic phases are either altered to talc-chlorite schist or a carbonate rock. Tholeiitic phases are iron rich and volcaniclastic. The southern Hearst Assemblage is mainly composed of arkosic sedimentary rocks.

Lithology

Lithology Comments

Dec 07, 2005 (D Guidon) - The deposit is located in a narrow zone (approximately 500 feet thick) of komatiitic and tholeiitic volcanic and sedimentary rocks wedged between the Timiskaming Assemblage sedimentary and alkalic volcaniclastic rocks to the north and the Hearst Assemblage sedimentary rocks to the south. The wedge follows the trace of the Larder Lake Deformation Zone and dips 65o to 70o to the south. The Larder Lake Deformation Zone is a major structure extending from Cadillac, Quebec in the east to beyond Matachewan in the west. Komatiitic phases are either altered to talc-chlorite schist or a carbonate rock. Tholeiitic phases are iron rich and volcaniclastic. The southern Hearst Assemblage is mainly composed of arkosic sedimentary rocks.Ore occurs in 9 zones near the northern or southern contacts of the wedge. All of the ore is within the wedge with the exception of one zone developed in the Hearst Assemblage. Five of the ore zones are Kerr Addison Mine flow ore types developed within tholeiitic rock units, 3 are formed in sedimentary rocks and 1 is found in carbonate-altered komatiitic rocks. Production ore has come from the A-, B- and C-zones in the upper 700 feet of the mine. These are flow ore zones near the southern contact. Between the 700- and the 1200-foot levels, sedimentary ore zones are found, but not flow ore zones. The D-Zone begins at the 1200-foot level and has been drill tested to the 3700-foot level and has a presently drill indicated maximum width of 950 feet. The zone is open at depth, at least 800 m to the west and at least 1 km to the east (NFX Gold Inc. Press Release, October 14, 1998).

Mineralization

Mineralization Comments

Feb 25, 2015 (D Guidon) - Ore occurs in 9 zones near the northern or southern contacts of the wedge. All of the ore is within the wedge with the exception of one zone developed in the Hearst Assemblage. Five of the ore zones are Kerr Addison Mine flow ore types developed within tholeiitic rock units, 3 are formed in sedimentary rocks and 1 is found in carbonate-altered komatiitic rocks. Production ore has come from the A-, B- and C-zones in the upper 700 feet of the mine. These are flow ore zones near the southern contact. Between the 700- and the 1200-foot levels, sedimentary ore zones are found, but not flow ore zones. The D-Zone begins at the 1200-foot level and has been drill tested to the 3700-foot level and has a presently drill indicated maximum width of 950 feet. The zone is open at depth, at least 800 m to the west and at least 1 km to the east (NFX Gold Inc. Press Release, October 14, 1998). Flow ore zones are fine grained, grey, banded, silicified tuffs. The concentration of fine grained pyrite, which may have been coarse and then crushed, appears to be related to gold concentration. Sedimentary ore appears banded and contains smokey quartz and arsenopyrite with fine grained pyrite. Brittle fracturing of the original rock channelled hydrothermal fluids that precipitated pyrite and gold. In the summer of 2014, J. Suma-Momoh collected a grab sample from an outcrop of the c-orebody, on the south side of the exposure along HWY 66 East. The sample returned an assay of 2.68 g/t gold.

Alteration Comments

Dec 07, 2005 (D Guidon) - Flow ore zones are fine grained, grey, banded, silicified tuffs. The concentration of fine grained pyrite, which may have been coarse and then crushed, appears to be related to gold concentration. Sedimentary ore appears banded and contains smokey quartz and arsenopyrite with fine grained pyrite. Brittle fracturing of the original rock channelled hydrothermal fluids that precipitated pyrite and gold.

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 2       Structure Type: Breccia

Rank: 1       Structure Type: Fault

Site Visit Information

Date: Jun 02, 1999

Geologist: D Guidon

Notes: Deposit visited with G. Meyer and L. Tihor October 23, 1998. Underground workings not accessible. Property visit consisted of a discussion of the geology, ore reserves, the option agreement with Fort Knox and the examination of some drill core.

References

File - Resident Geologist files KL-1389, KL-2324

Publication Number: Date:

Author:

Publisher Name:

Location: Kirkland Lake RGP office

Map - Larder Lake area, District of Timiskaming, Ontario

Publication Number: ARM33B Scale: 1:47,520    Date: 1997

Author: Hopkins P.E., Cockshutt C.F., Adamson J.C.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Township of McVittie, District of Timiskaming, Ontario

Publication Number: ARM50B Scale: 1:12,000    Date: 1998

Author: Thomson J.E.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Geology of McGarry and McVittie townships, Larder Lake area

Publication Number: ARV50-07 Page: 45, 49-53  Date: 1998

Author: Thomson J.E.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Mineral resources and mining properties in the Kirkland Lake-Larder Lake area

Publication Number: MDC003 Page: 10-11  Date: 1964

Author: Savage W.S.

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: 154  Date: 1979

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

Publisher Name: Ontario Geological Survey

Location:

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

Publication Number: OFR5467 Page: G0152  Date: 1983

Author: Hodgson C.J.

Publisher Name: Ontario Geological Survey

Location:

Book - Property Visit 040

Publication Number: PV040 Date: 1901

Author: Lovell, H.L.

Publisher Name:

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