Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41N01SE00002

Record: MDI41N01SE00002

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Davieaux

Latitude: 47° 7' 5.48"    Longitude: -84° 10' 50.37"

UTM Zone: 16    Easting: 713862.808   Northing: 5222155.177    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41N01SE

Point Location Description: Precise

Location Method: Conversion from MDI

Access Description: The properties can by reached by a fixed wing aircraft that can land on the Quintet Lakes and Spruce lake. Travel from Sault Ste. Marie onto Highway 17 north to the Mile 38 road just pass Chippewa Falls. Then travel along a series of interconnecting, gravelled bush roads. The Algoma Central Railway main line north of Sault Ste. Marie passes directly through. Lodge facilities are availabe at Spruce Lake.

Exploration History

The early 1940's prospector Peter Lajoie performed stripping and trenching on what may have been a gold prospect. In 1946 the property was optioned to Rcohette Gold Mines Co. Ltd. who conducted trenching and diamond drilling. Data suggests the testing of a shear zone over a strike length of 1300 feet. In 1960 a field party emplyed by the ACR resampled and relogged the holes drilled by Rochette and resampled old trenches on the property. In 1960 Hiawatha Gold Mines also performed a surface exploration program on the property reporteing the presence of a rusty shear zone in siliceous tuffs and iro formation. In 1967 the property was staked by prospector E. Giroux who drilled 4 holes totalling 539 feeet. In 1974 New Hiawatha Gold Mines Ltd acquired the gournd and drilled. In 1975 geologist E. Bazinet on behalf of New Hiawatha undertook sampling of the old Rochette trenches, geological mapping and EM and magnetic geophysical survesy were completed. In 1981 D. Hammar and R. Bridge staked the property and conducted some stripping and trenching work. In 1983 a survey was carried out by Bush Pilot Corporation on behalf of Massive Energy Ltd. Massive Energy had optioned the property from D. Hammar, R. Bridge and R. Giroux. This included a grid that was cut at 100m line spacing and fieldwork supervised by J.W. Cant. From 1984 to 1987 as series of diamond drill programs were carried out by Bush Pilot Corporation on behalf of Massive Energy Ltd.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Batchawana

Geological Age: Archean  

Mineralization

Mineralization Comments

Aug 11, 2010 (A Pace) - Mineralization is not widespread throughout the stratigraphic succession and is predominantly found in felsic volcanic rocks, iron formations and cross-cutting structures. Pyrite, pyrrhotite and magnetite are most common. Gold and arsenopyrite have been found to occur locally as well as traces of chalcopyrite and sphalerite. Concentrations of gold are associated with iron formations. Iron formations consist primarily of laminated chert beds with concentrations of 5 to 40% combined iron-sulphide and magnetite. Sulphide-facies iron formation is predominant in the sequence. Mafic and intermediate volcanci rocks contain fine grained disseminated pyrite. Felsic tuffs, which are immediate hosts of iron formation units are generally richer in pyrite. Sulphide minerlaization is concentrated locallly due to structural deformation and alteration. Quartz or quartz-carbonate stringers contain very little sulphide. Sulphide concentrations increase where stringers cross-cut siliceous, sulphidic volcanic rocks and iron formation. At Mine Pond, iron formation hosted gold mineralization is apparently related to late-stage, hydrothermally emplaced, quartz-sulphide veins. Gold-bearing zones frquently include fracture fillings or medium to coarse grained, blue-gray to blue quartz with varying amounts of pyrrhotite, pyrite and arsenopyrite. Traces of secondary chalcopyrite and sphalerite occur locally in association with gold mineralization. Chlorite and sericite alterations are commonly associated with these zones. In 1984 Bush Pilot Corporation on behalf of Massive Energy Ltd., completed 15 drill holes totalling 1596m. Five holes fcused specifically on the Mine Pond. BPC-84-1 a 10cm thick zone of magnetite-pyrite-chlorite in felsic tuff which ran 3.76 g/ton Au. Holes BPC-12 and 13 averages 2.25 g/ton Au over 5.8m and the best sample within this sections is 4.33 g/ton Au over 2m. In 1985 Bush Pilot Corporation completed 12 diamond drill holes totalling 1500 m. BPC-85-3 intersected 18.47 m of 1.23 g/ton Au and 4.9m of 2.46 g/ton Au. Hole BPC-85-4 intersected 6.83m at 1.74 g/ton Au. Hole BPC-85-11 returned 2.07 g/ton Au over 1.81 m and Hole BPC-85-12 returned 1.35m at 1.95 g/ton Au. Holes BPC-85-5 intersected 11.63 m of 2.76 g/ton Au and 4.88 m of 3.32g/ton Au. BPC-85-6 intersected 1.47 g/ton Au over 12.61m and 4.33 g/ton over 1.06m BPC-85-7 intersected 2.33g/ton Au over 2.63m. Hole 85-9 intersected 14.1 m of 2.37 g/ton Au, 5.10 m of 3.6 g/ton Au. Hole 85-10 intersected 20.56 m of 3.54 g/ton Au and 5.01 m of 8.43 g/ton Au. In 1986 drilling by Bush Pilot Corp. included 33 dirll holes totalling 1308m of drilling. Hole BPC-86-24 and 86-26 intersected 1.02g/ton Au over 5.5 m. BPC-86-27 to 86-30 intersected 1.28g/t Au over 0.88m, Hole 86-29 intersected 2.42 g/t Au over 1 m Hole 86-30 intersected 1.39g/t Au over 1.22m.

Alteration Comments

Aug 11, 2010 (A Pace) - The presence of gold mineralization on the Hammar-Bridge Option(mine pond) is well estabished. Gold has been found in hydrothermal quartz veins where they intrude a fault strucutre which cross-cut iron formation at a high angle approximately 54 degreees. The fault dips eastward at 30 to 45 degrees. It occurs in a well-bedded sequence of sheared and altered felsic tuffs. The average widths of the iron formation and host felsic unit are approximately 17 m and 100 m respectively The fault zone itself is one of the principal controls over gold mineralization. Multi-phase silicification and genrally intense pyrrhotization are widespread. The iron formation is fractured and locally chloritized and local occurrence of galena, sphalerite and arsenopyrite are found. Gold within the iron formation has probably been epigenetically emplaced or enriched in the Trench #6 area of the Hammar-Bridge Option. Faulting, shearing and local brecciation within the iron formation are significant structural influences on what initially may have been a favlurable geochemical environment for the precipitiation of gold from hydrothermal fluids. Hydrothermal alteration of the iron formation is obvious from the presence of pervasive pyrrhotiatization, sulphide remobilization and the abundance of micro-crystalline quartz veinlets. Gold mineralization is apparently localized along the south stratigraphic contact of the iron formation. This is evidenced by higher gold grades near the contact particularly in holes 85-3,4,9 and 10.

Mineral Record Details

References

File - Resident Geologist files Davieaux-0022

Publication Number: Date:

Author:

Publisher Name:

Location: SSM RGP office

Map - Geological series, Precambrian geology, Batchawana synoptic project, Batchawana-Searchmont sheet, District of Algoma

Publication Number: P3063 Scale: 1:50,000    Date: 1987

Author: Grunsky E.C.

Publisher Name: Ontario Geological Survey

Location:

Map - Geological compilation series, Batchawana sheet, districts of Algoma and Sudbury, Sault Ste. Marie Mining Division

Publication Number: P0302 Scale: 1:126,720    Date: 1997

Author: Giblin P.E., Leahy E.J.

Publisher Name: Ontario Geological Survey

Location:

Compend - Report of activities, 1985, Regional and Resident Geologists

Publication Number: MP128 Page: 241  Date: 1986

Author: Kustra C.R.

Publisher Name: Ontario Geological Survey

Location:

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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office