Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A08SE00121

Record: MDI42A08SE00121

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Copper, Zinc, Lead

Location

Township or Area: Guibord

Latitude: 48° 31' 40.94"    Longitude: -80° 12' 5.64"

UTM Zone: 17    Easting: 558949   Northing: 5375300    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 42A08SE

Point Location Description: Diamond drill hole #398.

Location Method: Conversion from MDI

Access Description: The Fenn-Gib property is located in Guibord and Munro Townships in northeast Ontario. It is 43 km to the northwest of Kirkland Lake and 21 km east of Matheson, south of Abitibi Lake. The center of the property is at 5374037 N and 559078 E (UTM zone 17). The property is accessible all year long by the highway 101 which passed through the property. Highway 101 connects with the Trans Canada Highway at Matheson.

Exploration History

1911-1912: American Eagle Prospect developed a 70 foot shaft, 30 feet of drifting and 50 feet of crosscutting. The total recorded production included 54 tonnes milled for a total production of 40 ounces of gold. 1919-1921: Talisman Mine prospect was originally staked in 1919 and 1921 by N. Faulkenham and F. Gardiner. 1923-1924: Gardiner Guibord Mines Limited sank a shaft to a depth of 115 feet and carried out 500 feet of lateral development on the 100 foot level. 1934: Talisman Gold Mines Ltd. reopened the old workings and 694 feet of cross cutting, 30 feet of raising and 374 feet of drifting were completed. 1942: Shareholders Securities Limited acquired the property. Prospecting and trenching was completed. 1948: Perron Gold Mines Limited optioned a 17 claim block known as the Hansen-McDonnell property. Six diamond drill holes, five of which were abandoned in overburden, were collared approximately 700 metres south-west of Guibord Lake. 1953-1954: Canadian Johns Manveille Company completed a ground magnetic survey and two diamond drill holes totaling 420 metres. 1964-1966: K. E. Skjonsby undertook a program of trenching and diamond drilling. Twelve shallow holes totaling 375.2 metres were completed. This showing returned up to 28 g/t across narrow intervals (less than 45cm). 1960s: Hollinger Consolidated Gold Mines Limited conducted substantial exploration programs in Guibord Township. Seven holes totaling 1,825m were drilled in various parts between 1964 and 1966. 1976-1985: Cominco Limited staked 134 claims that was later reduced to 53 claims. A series of work programs including geological and geophysical surveys with overburden and diamond drilling were carried out. The bulk of this work included 73 overburden holes totaling 2,758 metres and 27 diamond drill holes totaling 2,763 metres was carried out on and adjacent to a syenite plug in the south central portion of the property. 1984-1986: Lacana Exploration acquired the Fenn property conducted geological mapping, trenching, geophysical surveys and almost 4,000 metres of diamond drilling. 1988: Corona Corporation, drilled FE88-10 near the eastern boundary of the Fenn property, at the core of the Fenn-Gib Deposit. This hole penetrated a 222.51 metre section of altered volcanics which averaged 1.63 g/t. 1993: Normina Mineral Development Corporation acquired both the Gib and Fenn properties and completed ground geophysics and a four-hole 2,306.7 meter drill program. 1994-1997: Pangea Goldfields Inc. acquired Normina's interest in the property and conducted additional ground geophysical surveys and 60,805 metres of diamond drilling in 202 holes on both the Fenn and Gib properties. 1998: St Andrew Goldfields Ltd. optioned the property and completed a limited I.P. survey and conducted 1,430 metres of drilling in 21 holes in 1998-1999. As part of the option agreement Pangea completed in 1998 their planned exploration program consisting of 14,090 metres of drilling in 69 diamond drill holes. 1999-2000: Pangea performed mining studies consisting of a block model, a preliminary pit and a geological potential of the zone. Exploration activity focused in the eastern half of the property, and consisted of line cutting, geophysics and diamond drilling. A total of 76.5 kilometres of line cutting, 67.5 kilometres of magnetometer and 29 kilometres of I.P surveying followed by 1,465 metres of diamond drilling in five holes. 2000: Barrick purchased Pangea and hired Breton, Banville and Associates (BBA) to complete an open-pit economic evaluation on the Fenn-Gib Deposit. Lake Shore Gold acquired the “Highway 101” property from Richmond Minerals Incorporated.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Tectonic Assemblage: Kidd-Munro

Geological Age: Archean  

Geology Comments

Dec 20, 2012 (D Guidon) - From Dagbert and Desharnais (2011) The Fenn-Gib property is located in the southern portion of the Abitibi Sub-province. The Abitibi Sub-province is principally composed of volcanic and sedimentary assemblages that have generally been metamorphosed to greenschist facies and intruded by late tectonic plutons of tonalite and trondhjemite affinity. The property area is underlain by rocks of the Hoyle sedimentary Assemblage and the Kidd-Munro volcanic Assemblage, and lies on the northern portion of the Blake River Synclinorium and approximately three kilometres north of the of the Porcupine-Destor Fault. The Hoyle Assemblage, a sedimentary package, consists of feldspathic wackes, argillites, siltstone and conglomerate. The Kidd-Munro Assemblage, a volcanic package, consists of mafic to ultramafic basalts, with peridotitic to basaltic komatiite and minor rhyolite tuff. Both assemblages are considered to be north facing and conformable, but appear to be in an unconformable relationship in Guibord Township. This unconformity is represented by the Contact Fault, deformation, various intermediate and felsic intrusions.

Lithology

Lithology Comments

Dec 20, 2012 (D Guidon) - From Dagbert and Desharnais (2011) The Kidd-Munro Assemblage consists of iron rich tholeiitic flows interlayered with komatiitic flows and peridotitic sills. Tholeiitic flows are medium to dark green, aphanitic to medium crystalline and include pillow lavas, flow top breccias and variolitic lavas. Komatiitic flows are dark green and consist of fine crystalline and massive serpentine rich rocks usually altered to talc-chlorite. These units are generally east-west trending, interpreted to be north facing, and dip gently to the south at 45 to 55 degrees. The Kidd-Munro Assemblage is host to a highly magnetic mafic intrusive body. This intrusion is 100 to 200 metres wide with a strike length of greater than two kilometres inferred from diamond drilling and geophysical data. It consists of a biotitic gabbro with minor peridotite and komatiitic flows. The magnetic map suggests that the mineralization is associated with this intrusion. The magnetism is likely a function of excess Fe taking the form of magnetite during the serpentinization and chloritization of olivine and pyroxene in the ultramafic rocks. The southern contact of the intrusion is truncated by the Contact fault while the northern contact with its volcanic host is often gradual and typically marked by syenitic dyklets. The Hoyle Assemblage consists mainly of turbiditic greywackes interlayered with argillites and occasionally conglomerates. Greywackes are generally massive, medium grey to grey green in colour whereas the argillites are dark grey to black, massive or finely laminated. Beds dip steeply to the south and are interpreted to be north-facing, based on well developed upward fining cycles, cross bedding and rip-up clasts. Within the Deformation Zone of the Fenn-Gib deposit, the Hoyle sedimentary package is the main host for gold mineralization. Mineralization within this unit tends to be far more localized within veins as opposed to the broad disseminations observed in the volcanic rocks to the north.

Mineralization

Mineralization Comments

Dec 20, 2012 (D Guidon) - From Dagbert and Desharnais (2011) Several styles of gold mineralization are recognized in the Fenn-Gib property area. The most common type of gold mineralization recognized to date consists of quartz-carbonate veins, stringers and breccias hosted within intensely altered volcanic rocks and granitoid intrusions (Fenn-Gib Deposit). A second style is gold associated with intensely altered sediments with variable fine crystalline pyrite within and in the hanging wall to the Deformation Zone. A third style of gold mineralization is associated with alteration, shearing and sulphides in NNE trending structures. Significant concentrations of gold mineralization on the Fenn-Gib property occur within two zones; 1) the Main Zone, and 2) the Deformation Zone. These two zones overlap completely and are referred herein as the Fenn-Gib Deposit. The Main Zone is a broad zone of disseminated gold mineralization up to 250 metres wide with grades for gold between 0.50 to 3.00 g/t. Massive, pillowed and variolitic basalts crop out and can be seen in diamond-drill core from holes collared near Highway 101. Hydrothermally altered variolitic basalts are the principal hosts of the Main Zone mineralization. These basalts were affected by pervasive and vein silicification, carbonatization, albitization, pervasive but weak hematization, and vein sericitization. Syenite and lamprophyre dikes intruded the basalts and are locally mineralized. Pyrite is the main sulphide mineral and occurs as disseminations and in veins, locally up to 50%, over narrow intervals (average 5 to 10%) (Berger 2002). The Deformation Zone contains narrower and higher grade intersections associated with altered sediments, intermediate dykes and grey syenite. Gold mineralization is associated with pyrite either in quartz healed breccias or as very fine disseminations. It has been interpreted that the Contact Fault acted as a channel for gold bearing hydrothermal fluids and is host to the Deformation Zone and the southern boundary of the Main Zone. A diatreme breccia was encountered in diamond-drill core in the southeast part of the property. This breccia is associated with anomalous gold mineralization and represents another exploration target on the Pangea property. Rocks in this area are ultrapotassic; pseudoleucite bearing and associated with fluorite.

Alteration Comments

Dec 20, 2012 (D Guidon) - From Dagbert and Desharnais (2011) The lithologic units in and adjacent to the deformation zone are moderately to intensely altered. This alteration persists for a distance north and south of the fault outlining a major alteration halo at least two kilometres in length and 500 metres wide. A variety of alteration styles occur within the broad alteration halo including silicification, albitization, potash metasomatism, carbonatization, sericitization, chloritization and hematization. Mariposite occurrences are widespread within the deformation zone. Sulphide mineralization, chiefly pyrite, occurs as disseminations and fracture fillings in concentrations ranging from trace to 15% in association with the more strongly altered areas. Gold is commonly associated with the sulphide mineralization especially in areas of coincident silicification and albitization.

Mineral Record Details

References

Core - DCL-1990

Publication Number: Date:

Author:

Publisher Name:

Location: Kirkland Lake Drill core library

Folio - Guibord Township, District of Cochrane

Publication Number: GDIF399 Date: 1997

Author: Kirkland Lake RGO

Publisher Name: Ontario Geological Survey

Location:

Map - Geological Compilation of the Central Abitibi Greenstone Belt: Kapuskasing Structural Zone to the Quebec Border

Publication Number: P3565 Scale: 1:250,000    Date: 2005

Author: Ayer J.A., Berger B.R., Hall L.A.F., Houlé M.G., Johns G.W., Josey S.D., Madon Z.B., Rainsford D.R.B., Trowell N.F., Vaillancourt C.

Publisher Name: Ontario Geological Survey

Location:

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

Publication Number: OFR5735 Page: 1469-1463  Date: 1990

Author: Bath A.C.

Publisher Name: Ontario Geological Survey

Location:

Publication - Fenn-Gib Resource Estimate Technical Report, Timmins Canada

Publication Number: 2011 NI 43-101 Date: 2011

Author: Dagbert, M. and Desharnais, G.

Publisher Name: SEDAR

Location: Kirkland Lake RGP office

MonoMap - Geological Synthesis of the Highway 101 Area, East of Matheson, Ontario

Publication Number: OFR6091 Date: 2003

Author: Berger B.R.

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