Ontario Geological Survey
Permanent Link to this Record:
MDI41P12SW00056
| Record Name(s) | Beaverbridge - 1972, Gosselin Lake - 1972, Rockzone - 1972, Weeduck Lake - 1985, Siragusa #63 - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1993-Aug-24 |
| Date Last Modified | 2022-Apr-26 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Copper, Silver
Township or Area: Chester
Latitude: 47° 34' 3.32" Longitude: -81° 55' 4.98"
UTM Zone: 17 Easting: 430947.58 Northing: 5268649.7 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P12SW
Point Location Description: A series of small pits on the north shore of Weeduck Lake
Location Method: Field Visit with GPS
Access Description: The easiest access is via canoe across Weeduck Lake from the Chester Shannon mine access road. Alternative access is possible via a series of drill trails and paths around the east end of Weeduck. The last 100m of this trail system is overgrown.
1965: Beaverbridge Mines started an exploration program which consisted of a combined ground vertical loop electromagnetic and magnetic survey. This was followed by a geological mapping and small diamond drill program in the following year. Copper mineralization with some silver, zinc and gold was intersected about 100m south of the present showing. Additional drilling carried out in 1967 intersected several narrow zones to the south which graded up to 3.85% Cu, 92 g/t Ag and 42 g/t Au (2.97 opt Ag, 1.23opt Au) in hole 67R12. 1970: Beaverbridge Mines resumed exploration with a short hole which tested a target northeast of the present showing and carried out an Induced Polarization survey. Then in 1972 exposed the present showing in a series of trenches. 1972: Rockzone Mines assumed operation of the property then optioned it in the following year. Exploration initially consisted of additional stripping of the showing and 'underwater geological surveying'. This resulted in discovery of additional massive sulphide veins in the trenches grading up to 8% Cu, 270 g/t Ag, and 2 g/t Au (8opt Ag, 0.06opt Au) which are up to 9cm thick. In the following year an IP survey was carried out and six short holes were drilled of which four vertical holes tested the occurrence documented here coincident with an IP anomaly. Two of the hole intersected mineralization up to 4.1% Cu, 1.2 g/t Au, and 30 g/t Ag (0.88opt Ag) 1981: Murgold Resources mapped the showing as part of their property and in the following year the mineralization was tested with a drill hole (M26). This hole intersected a wide biotitic alteration zone containing disseminated pyrrhotite, pyrite, and chalcopyrite. However, the best assay obtained was 2 g/t Au over 15cm. 1983: Rockwell Mining carried out a VLF electromagnetic survey and mapped the property immediately west of the showing and found a number of small gossan zones.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2014 / 63.1903 | 41P12SW0112 | 41P12SW0112 |
| T-2433 / 2.4889 | 41P12SW0004 | 41P12SW0004 |
| T-2433 / 63.4370 | 41P12SW0002 | 41P12SW0002 |
| T-2433 / 63.4436 | 41P12SW0061 | 41P12SW0061 |
| T-2433 / 2.4888 | 41P12SW0071 | 41P12SW0071 |
| T-2014 / | 41P12SW0097 | 41P12SW0097 |
| T-2763 / 2.5944 | 41P12SW0069 | 41P12SW0069 |
| T-2032 / | 41P12SW0092 | 41P12SW0092 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2740 MA Geochron. Age Ref.: GSC OF 3884G
Dec 07, 2005 (S Fumerton) - The rock is cut by two joint / vein systems. One is orthogonal system and the second consists of irregular and anastomosing planes. The concentration of these joints / veins is greater near the mineralization and is associated with some shearing. The strike and dip of the exposed mineralization suggests that this particular mineralized zone may not have been intersected in any of the drilling.
| Rock Type | Rank | Composition | Texture | Relationship | Granodiorite | 1 | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz | Vein | Host |
| Vein | 3 | Quartz | Contains |
Dec 07, 2005 (S Fumerton) - The host rock is a medium grained (1-2mm), massive granodiorite. Blue opalescent quartz forms 20 - 30% of the rock and fine grained mafic minerals, probably amphibole and chlorite, form up to 5% of the rock. Fine grained pyrite is sparsely developed in the matrix of the rock. Adjacent to the joints which cut the outcrop there is biotite alteration. In the case of the orthogonal joints this alteration extends up to 20cm from the joint and is characterised by the occurrence fine grained biotite in the matrix, near the mineralized zone this biotite alteration occurs together with disseminated pyrite. Locally within joint plane there are enrichments of medium to coarse grained quartz grains up to 1cm thick. In the case of the anastomosing joints / veins fine grained quartz veins are commonly developed but are associated with narrow (2 - 4mm) alteration margins containing coarse grained biotite and brown calcite rich.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Magnetite | Economic | Gangue | ||||
| Biotite | Alteration | Biotitic | 1 | Medium | Replacement | ||
| Calcite | Alteration | Carbonatization | 2 | Weak | Veins |
Dec 07, 2005 (S Fumerton) - The coarse grained, disseminated sulphide mineralization is associated with an alteration zone. These alteration occurs over a thickness of 3m and consists of multiple zones centred on joints and narrow quartz - semi-massive sulphide veins. The individual zones are up to 60cm wide. Away from these alteration zones the grain size and abundance of sulphides is much lower. There are two types of pyrite in the sulphide veins which occur along the joints, a coarse grained euhedral variety which is set in a fine grained botryoidal variety. These two forms of pyrite may correlate with the two general gold concentration levels:- a high but erratic gold concentration associated with low concentrations of sulphides which tend to subhedral, secondly a low but consistent gold concentration associated with high sulphide concentrations as found in the narrow veins. Fine disseminated magnetite crystals also occur in the sulphide veins. Chalcopyrite is irregularly distributed in the along the sulphide veins and in the granodiorite matrix forms narrow mantles around the pyrite grains.
Oct 28, 2013 (A Wilson) - Assays from Beverbridge Mines ddh 67R12 returned values up to 3.85% Cu, 92 g/t Ag and 42 g/t Au. Diamond drilling by Rockzone Mines intersected mineralization up to 4.1% Cu, 1.2 g/t Ag and 30 g/t Au. A grab sample collected by the OGS in 1993 returned a value of 0.05 g/t Au, 1.2 g/t Ag and 0.07% Cu.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Copper | Unknown | .0766 | % | |||
| Gold | Unknown | .05 | ppm | |||
| Lead | Unknown | .0008 | % | |||
| Molybdenum | Unknown | .001 | % | |||
| Silver | Unknown | 1.2 | ppm | |||
| Zinc | Unknown | .0027 | % |
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Stockwork |
| 2 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 10 | 3 | 40 | 80 | N/A | N/A |
Map - Three Duck Lakes area, District of Sudbury, Ontario
Publication Number: ARM41D Scale: 1:47,520 Date: 1997
Author: Laird H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological series, Precambrian geology of Chester and Yeo townships, and parts of Neville and Potier townships, Jerome area, Sudbury District
Publication Number: P2449 Scale: 1:15,840 Date: 1981
Author: Siragusa G.M.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology, Parts of Chester, Neville, Potier and Yeo Townships
Publication Number: OFM0214 Scale: 1:15,840 Date: 1993
Author: Siragusa G.M.
Publisher Name: Ontario Geological Survey
Location:
Map - Geology, Swayze greenstone belt, Gogama, Ontario
Publication Number: OF3384G Scale: 1:50,000 Date: 1999
Author: Heather, K B; Shore, G T
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/210455
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 41P-62 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Book - Northern Miner 73-01-18, New Copper, p. 21
Publication Number: NMINER Date: 1996
Author:
Publisher Name: Northern Miner
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 234 Date: 1969
Author: Shklanka R.
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: 51-52 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 Date: 1983
Author: Hodgson C.J.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology, Geochemistry and Mineralization of the Southern Margin of the Swayze Belt
Publication Number: OFR5844 Page: 92-23 Date: 1993
Author: Siragusa G.M.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)
Publication Number: OFR5912 Page: 425-427 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
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