Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42D15SW00035

Record: MDI42D15SW00035

General

Commodities

Primary Commodities: Zinc, Copper

Secondary Commodities: Silver, Lead

Location

Township or Area: Tuuri

Latitude: 48° 51' 2.84"    Longitude: -86° 47' 42.88"

UTM Zone: 16    Easting: 515021   Northing: 5410889    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D15SW

Point Location Description: DDH BZW-08-05 from AFRI 20000013680

Location Method: Field Visit

Access Description: The two showings are located near Bozena (Bonne) Lake, approximately 24 km east-northeast of Terrace Bay in Tuuri Township. The northern prospect is located on the western shore of Bozena Lake while the southern prospect is found about 1.5 km south of the lake (Claim Map G-635, Tuuri Township). The property is accessible by air or overland approximately 6.5 km north of Highway 17.

Exploration History

Pre-1980: The area was staked sporadically by various individuals however no work was recorded. 1981-1982: Diamond drilling (13 holes totalling 1528.8 m); Gulf Minerals Canada Limited. 1986: Eldor Resources Ltd. conducted a VLF-EM survey, soil and lithogeochemistry surveys, and drilled 5 DDH totalling 543.2 m. 1987: Eldor Resources Ltd. drilled 3 DDH totalling 344.4 m. 2005: Phoenix Matachewan Mines conducted linecutting, prospecting, mapping, sampling, and drilled 11 DDH totalling 1682 m. 2006: Phoenix Matachewan Mines contracted Geotech Ltd. to fly a helicopter-borne EM survey. 2008: Phoenix Matachewan Mines conducted mapping and drilled 13 DDH totalling 1616.65 m. 2016: W. Richards conducted prospecting and sampling.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  

Geology Comments

Dec 07, 2005 (D McKay) - The northern showing, examined by Gulf Minerals Canada Limited, is described utilizing drill core observations by Solonyka (1981, assessment files): The main mineralized zone occurs in a coarse, white quartz calcite vein in which a xenolith of dacite serves as a site for nucleation for the sphalerite mineralization. The wall rocks consist primarily of fine-grained, medium green, massive dacite and fine-grained, black, massive argillite with minor tuffaceous units. Occasional, narrow quartz-carbonate veinlets are noted. The main mineralized zone is intersected for approximately 3.5 metres in drill section. The southern showing was drilled extensively by Teck Explorations Limited and results of this drilling are noted by Von Guttenberg (1983, assessment files): The mineralization is, for the most part, restricted to what is termed a silicate facies iron formation which is intercalated with siltstone and lesser felsic to intermediate volcanic flow and tuffaceous units. This iron formation is grey-brown to green sometimes laminated and somewhat garnetiferous. Grain size varies from medium to coarse grained. Constituent minerals may include sericite, actinolite, chlorite, quartz, biotite, amphibole and carbonate. Chert bands and magnetite-pyrrhotite mineralization are also present. Solonyka (1981, assessment files) stated: In the northern showing mineralized zone, variable amounts of sphalerite, chalcopyrite, pyrite and galena are found. Reddish-brown sphalerite predominates and may range from <1% to 50% of the drill core. It may also occur alone, usually as narrow veinlets in the dacite.

Lithology

Lithology Comments

Jul 16, 2018 (Therese Pettigrew) - The focus of Phoenix Matachewan’s exploration has been the folded cherty exhalative sediment horizon which caps a mixed felsic to mafic metavolcanic sequence. The ‘northern limb’ of the exhalite horizon strikes east-west from Prospect Lake (to the west) to the east of Bozena Lake. The rusty cherty exhalative unit is of regional extent (Walker, 1967) and typically found along steep hillsides as a consequence of the sediments or basalts, which overlie the unit, being considerably more susceptible to physical erosion processes. The chert is generally highly iron stained on outcrop surfaces and the exterior of boulders, but very whitish and clean when broken. The unit contains sparse to a few percent sulphides, with more abundant sulphides commonly represented by strongly oxidized material commonly found only in talus debris. Tuff-breccias and/or debris flow units are present often immediately underlying the chert horizon. Intermediate to felsic fragments, ranging from lapilli to bomb-size in dimensions, rest within a deep green often garnet-rich matrix which was initially considered to represent sediment derived from basalts, but is in most cases a strongly altered intermediate to felsic ash. The felsic volcanic rocks are predominantly rhyolitic ash and crystal tuffs, usually whitish to salmon orange coloured on weathered surfaces, and medium grey where broken. Clastic sedimentary rocks which overlie the volcanic and chert units are comprised of greywacke of fairly uniform composition, with minor interlayered pelites. Metre-wide to 10 m wide diabase dykes are common, generally with subvertical dips and displaying a wide range of strike orientations (AFRI 20000013680).

Mineralization

Mineralization Comments

Dec 07, 2005 (D McKay) - Solonyka (1981,assessment files) stated: In the northern showing mineralized zone, variable amounts of sphalerite, chalcopyrite, pyrite and galena are found. Reddish-brown sphalerite predominates and may range from <1% to 50% of the drill core. It may also occur alone, usually as narrow veinlets in the dacite. Von Guttenberg (1983, assessment files) stated: The ore minerals in the southern showing consist of chalcopyrite, sphalerite, pyrrhotite and pyrite. The occur in trace to low (3%) amounts, usually as ribbons or blebs in association with quartz-carbonate veinlets and lenses in the iron formation. A weighted average from hole 81-33-2-1A (North Prospect) indicated 3.36% Zn over 17.04 m and contained within that section 13.24% Zn over 3.35 m (R. Sim, Geologist, Winston Lake Division, personal communication, 1986). Drill intercepts of up to 5500 ppm Cu, 960 ppm Zn, 12.4 ppm Ag and 45 ppb Au over 0.50 m and 4700 ppm Cu, 3700 ppm Zn, 7.5 ppm Ag and 10 ppb Au over 0.50 m were reported by Teck Explorations Ltd. for drilling (hole SHG-4) conducted on the South Prospect.

Jul 16, 2018 (Therese Pettigrew) - The best zinc intersection of 11.09% Zn over 3.75 m occurred in recrystallized chert from 19.45 to 21.15m in hole BZW-08-05. Hole BZW-08-05 intersected a known mineralized zone first drilled by Gulf Minerals in 1983, and in the 2008 hole returned values of up to 23.3% Zn, 3230 ppm Cu, 410 ppb Pb, and 10.8 gpt Ag. The mineralization occurs within a zone to the west of Bozena Lake which was interpreted on the basis of mapping in 2008 by Blackburn Geological Services to be a very tightly folded sequence of predominantly metasedimentary strata that seem to have formed on the flank of a volcanic edifice. To the east, these strata occur as a felsic dome, overlain by sedimentary strata, and intercalated with mafic and ultramafic flows (AFRI 20000013680). DDH 590-4 intersected up to 11.04% Zn, in a quartz-sphalerite vein with up to 50% sphalerite, from 43.4-43.7 m (AFRI 42D15SW0064).

Mineral Record Details

References

Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District

Publication Number: M2232 Scale: 1:253,440    Date: 1973

Author: Carter M.W., McIlwaine W.H., Wisbey P.A.

Publisher Name: Ontario Division of Mines

Location:

MonoMap - Geology of the Jackfish-Middleton area, District of Thunder Bay

Publication Number: R050 Date: 1997

Author: Walker J.W.R.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Jackfish-Middleton area, Thunder Bay District

Publication Number: M2107 Date: 1967

Author: Walker J.W.R.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.

Publication Number: OFR5951 Page: 647-651  Date: 1996

Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.

Publisher Name: Ontario Geological Survey

Location:

File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date: 1996

Author:

Publisher Name:

Location: Thunder Bay RGP

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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office