Ontario Geological Survey
Permanent Link to this Record:
MDI41P12SW00074
| Record Name(s) | Brennan Hj. - 1991, Brennan - 1931, Beaverbridge DDH V-2 - 1984, Siragusa #65 - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1993-Sep-01 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Township or Area: Chester
Latitude: 47° 34' 10.14" Longitude: -81° 54' 42.94"
UTM Zone: 17 Easting: 431410.59 Northing: 5268854.7 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P12SW
Point Location Description: Quartz vein on the portage.
Location Method: Data Compilation
Access Description: A recent skidder trail to the north end of Weeduck Lake branches off the Chester Shannon Mine access road and provides easy access. North of Weeduck Lake this road merges with a government maintained portage connecting the Three Ducks Lakes to the east arm of Bagsverd Lake. The showing is at the north end of the portage.
1931: H.J. Brennan held a number of claims which covered a wide quartz vein with significant pyrite and pyrrhotite mineralization. Assays only returned trace amounts of gold. 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 which located the vein and small diamond drill program in the following year. Additional drilling carried out in 1967 but none of the drilling was directed towards the quartz vein. Two short holes tested a very narrow sulphide zone just north of the quartz vein. This zone graded up to 1.1% Cu. 1970: Beaverbridge Mines resumed exploration with a short hole which tested a target under the lake just north of the quartz vein (Beaverbridge Lake). This hole intersected a number of shear zones in the granodiorite with pyrite, pyrrhotite, chalcopyrite and molybdenite. An Induced Polarization survey was also carried out at this time. In 1972 trenching was carried out on other mineral occurrences on the property. 1972: Rockzone Mines assumed operation of the property then optioned it in the following year. Exploration initially consisted of additional stripping and 'underwater geological surveying'. 1981: Murgold Resources mapped the area as part of their property during which time the vein was observed and in the following year a hole was drilled (M30) to test a geophysical anomaly which is the western extension of the anomaly drilled by Beaverbridge in 1970. No assay results are reported from this hole. 2012: 986813 Ontario Ltd. and Trelawney Mining and Exploration Inc. - Assays, Pr.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2014 / | 41P12SW0097 | 41P12SW0097 |
| T-2433 / 2.4888 | 41P12SW0071 | 41P12SW0071 |
| T-2433 / 63.4370 | 41P12SW0002 | 41P12SW0002 |
| T-6488 / 2.53451 | 20000008648 | 20000008648 |
| T-2433 / 63.4436 | 41P12SW0061 | 41P12SW0061 |
| T-2014 / 63.1903 | 41P12SW0112 | 41P12SW0112 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2740 MA Geochron. Age Ref.: GSC OF 3384G
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz-Carbonate | Vein | Host |
|---|---|---|---|---|
| Granodiorite | 2 | Host | ||
| Vein | 3 | Quartz-Carbonate | Host |
Dec 07, 2005 (S Fumerton) - The mineralization is hosted in a mixture of typical medium to coarse grained granodiorite and quartz diorite which form part of the Chester Granitoid Complex. Blue opalescent quartz is pervasive, and fine, sparsely disseminated pyrite, pyrrhotite and magnetite occur in the matrix. Small quartz and/or carbonate stringer veins occur in the granodiorite. Chlorite and biotite alteration occurs in bands of varying concentration. Small diabase dykes are common in the area.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Pyrrhotite | Economic | Gangue | ||||
| Chlorite | Alteration | Chloritic | 1 | Weak | Replacement |
Dec 07, 2005 (S Fumerton) - Disseminated, fine grained pyrite, pyrrhotite, and chalcopyrite occur in the granodiorite matrix and in small quartz veins. In addition there are a number of small massive sulphide veins. Molybdenite has been tentatively recognized as very sparsely disseminated grains.
Oct 29, 2013 (A Wilson) - A 0.1ft sample of core from a diamond drill hole completed by Beaverbridge Mines in 1965 returned an assay of 1.1% Cu. No other assays have been reported.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | N/A | N/A |
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-33 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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:
Part - Geology of the Three Duck lakes area
Publication Number: ARV41-03.001 Page: 28 Date: 1998
Author: Laird H.C.
Publisher Name: Ontario Dept. of Mines
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:
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 Date: 1979
Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.
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
Publication - Gold Occurrences of Ontario East of Lake Superior; Geological Survey of Canada, Memoir 192
Publication Number: GSC Mem 192 Date: 1936
Author: Kindle, E.D.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100824
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology, Geochemistry and Mineralization of the Southern Margin of the Swayze Belt
Publication Number: OFR5844 Page: 94 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: 429-430 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
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