Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A02SE00045

Record: MDI42A02SE00045

General

Commodities

Primary Commodities: Zinc

Secondary Commodities: Copper

Location

Township or Area: Cairo

Latitude: 48° 0' 24.18"    Longitude: -80° 38' 28.29"

UTM Zone: 17    Easting: 526761.98   Northing: 5317108.92    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 42A02SE

Point Location Description: Trench

Location Method: Field Visit with GPS

Access Description: North of Highway 66 1.6 km on the Matachewan Indian Reserve 72 road. Turn left onto a gravel road and travel northwest approximately 2.7 km. At this point a tractor road leads north for approximatley 1.3 km, of which the road is passable with 4 wheel drive vehicle for most of the way. At this point it is a further 0.6 km to the showing, following claim and picket lines to the north.

Exploration History

1975 - The Ontario government published the results of an airborne electromagnetic and magentic survey in the Matachewan area. A number of anomalies on the Powell Township sheet (P.1022) are in Cairo Township. These are to the south of the showing. Tagliamonte and others staked this area and optioned the ground to Texasgulf Canada Ltd. Texasgulf completed a ground magnetic and horizontal loop surveys of the property in 1976 and drilled 3 diamond drill holes totalling 1678.5 feet. Gold values were background and zinc values ranged up to 0.7% over 5 feet. 1988 - Regent Rock Resources Inc. optioned six claims from Tagliamonte and others (this is also south of the showing). The company completed 12 kilometers of VLF-EM and mag, and 6 kilometers of IP over the property in 1988. This was followed up with 1297.8 metres of diamond drilling in 1988. Gold values were disappointing. 1991- Tagliamonte and Toews completed a reconnaissance geology and VLF-EM geophysics program on 6 staked claims and some open ground to the north of the airborne anomalies. Flagged and chained compass lines were established simultaneously with VLF-EM and geological surveying. A beep mat survey was run over 2 anomalies. The zinc occurrence was discovered during this program. 1992 - Further VLF-EM surveys were carried out as well as some reconnaissance magnetic and Max-Min surveying. 1993 - Reconnaissance IP was run over a few lines on the property. 1994 - An IP survey was conducted over the entire property. A channel sample of the showing was taken. This returned 1.73% Zn over 3 feet. 1995 - Greater Lenora Resources Corporation and RJK Explorations Ltd.- property optioned,trenching, sampling and DD-1-773 ft.. The New Zinc showing returned an assay of 2.43% Zn over 4.75 feet.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Neoarchean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Jan 16, 2015 (D Guidon) - The area is underlain by Archean metavolcanic and metasedimentary rocks of the Abitibi Subprovince (Lovell 1975). The Galer Lake - Fort Matachewan Faults lies about 2 miles to the south of the showing. This fault, which subparallels the Larder Lake Fault zone, to the south, trends at about 60. The zinc showing is on the north flank of an east trending gully. The rocks are dominantly mafic, non-magnetic massive flows, of possible tholeiitic affinity. Lesser amounts of intermediate fragmental metavolcanic rocks contain disseminated and stringer pyrite.

Lithology

Lithology Comments

Jan 16, 2015 (D Guidon) - The rocks are dominantly mafic, non-magnetic massive flows, of possible tholeiitic affinity. Lesser amounts of intermediate fragmental metavolcanic rocks contain disseminated and stringer pyrite. A narrow zone of banded rhyolite or bedded chert occurs south of the showing with a strike of about 120°. The property is cut by at least one narrow northeasterly trending Matachewan diabase dike.

Mineralization

Mineralization Comments

Jan 16, 2015 (D Guidon) - 08/09/1999 (D GUINDON) - The IP and VLF-EM surveys show a 200 to 600 feet wide, east-trending IP anomaly with a VLF-EM conductor, more or less, concordant to its northern contact. The zinc showing is on the northern boundary of the IP anomaly. It consists of white low iron calcite veins and stringers containing disseminated anhedral sphalerite up to about 2 mm in diameter. The calcite veins are hosted in silicified, non-magnetic mafic metavolcanic rocks. Zones within the rock contain up to 20% very fine grained disseminated pyrite and 3 to 5% high iron dolomite filled To the east of the showing, and also within the broad IP anomaly, a massive pyrite zone, approximately 1 by 4 m, has been exposed in old trenches (52680 1 E 5316846N). The zone contains about 90% anhedral pyrite grains about 1 mm in diameter in a matrix of high iron dolomite. The mafic metavolcanic host rock, immediately to the north of the sulphide zone, is silicified and sericitized, containing 5 to I 00/a fine grained sphalerite in stringers and disseminated throughout the host rock. Minor fracturing, totaling less than 1 %, is filled with low-iron dolomite. The sphalerite adjacent to this zone was discovered during the property visit in September. Both showings are on the northern flank of an east-trending gully.

Jan 16, 2015 (A Wilson) - Grab samples collected from the Regent Rock Resources drill core returned 200 ppm Cu, 9100 ppm Zn over 1.5 ft in dacitic rocks; and 69 ppm Cu, 3800 ppm Zn within graphitic sediments (all from DDH 88-2). A channel sample collected from the zinc showing in 1994 returned 155ppm Cu. 1.2 ppm Ag and 1.73% Zn over 3 ft. A sample from the showing collected in 1995 returned 2.43% Zn over 4.75 feet and a second contiguous sample returned 3.22% Zn over 3.25 ft. A 7 ft section of drill core assayed 151 ppm Cu and 2200 ppm Zn from DDH GLC 95-1. The intersection was made between 231 and 238 m within a cherty felsic metavolcanic sequence.

Alteration Comments

Dec 07, 2005 (D Guidon) - Two sphalerite occurrences associated with silicification and sericitization, located proximal to an IP and VLF-EM anomaly, make the property an attractive prospect for further base metal exploration.

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Vein

Site Visit Information

Date: Aug 10, 1999

Geologist: D Guidon

Notes: Property visited September 27, 1995 with Frank Tagliamonte and Gary Grabowski (OPAP office). Samples collected: 95326 - carbonate vein with about 1% sphalerite; 95327 - mafic volcanic - silicified with about 20% py disseminated, anhedral, 3-5% low to high Fe-dolomite fracture filling; 95328 - massive pyrite - 90% py fg anhedral to 1mm, 10% high Fe-dolomite interstitial to py; 95329 - silicified mafic volcanic - 5% py as stringers and disseminated, <1% low Fe-dolomite disseminated grains to .5 mm.

References

Map - Powell and Cairo townships, Timiskaming District

Publication Number: M2110 Scale: 1:31,680    Date: 1997

Author: Lovell H.L.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Report of Activities 1995, Resident Geologists

Publication Number: OFR5943 Page: 183-184  Date: 1996

Author: Baker C.L., Fyon J.A., Laderoute D.G., Newsome J.W.

Publisher Name: Ontario Geological Survey

Location:

Map - Precambrian Geology, Highway 66 Area, Swastika to Matachewan

Publication Number: M2677 Scale: 1:50,000    Date: 2006

Author: Berger B.R., Pigeon L., Leblanc G.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology of the Matachewan area, District of Timiskaming

Publication Number: R051 Date: 1967

Author: Lovell H.L.

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