Ontario Geological Survey
Permanent Link to this Record:
MDI41P12SW00023
| Record Name(s) | Jonsmith Mines Ltd - 1961, Siragusa #38 - 1993, Crown Minerals Sample 2871 - 2010 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1993-Aug-07 |
| Date Last Modified | 2023-Mar-16 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Yeo
Latitude: 47° 32' 48.91" Longitude: -81° 57' 35.68"
UTM Zone: 17 Easting: 427770.57 Northing: 5266390.7 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P12SW
Point Location Description: A deep trench with lots of loose rubble
Location Method: Field Visit with GPS
Access Description: The Chester logging road which branches off the Sultan Main Haul road passes close to the workings and a rough exploration trail leads directly to the showing.
1933: The vein was discovered during prospecting by the Chester Shannon Group -Young Shannon GML but no mineralization was recorded. 1949: Three short holes in a larger drill program carried out by Blackstein and Kanovsky were drilled to test the vein. No mineralization is reported in the brief logs. 1961: Jonsmith Mining carried out a drill program in the area and three holes were targeted at the known quartz vein. These holes intersected quartz veins with pyrite and chalcopyrite hosted in granodiorite but no values are reported. 1978: McVittie and Canadian Crest GML flew an airborne magnetometer survey that covered the vein. 1978: A second airborne magnetometer survey was filed by Baxter Minerals and Canadian Crest GML which covered the vein. This was followed up with an overburden stripping program but no values were reported. 1980: Hargor Resources together with Canadian Gold and Metal Inc carried out a regional airborne magnetic and VLF electromagnetic survey which covered the area. 1981-87: Jonway Resources excavated three trenches on the quartz veins but no additional details have been reported. 1981: Kidd Resources carried out a stripping program that exposed bed-rock in a number of locations to the south and west of the vein. 2010: Trelawney Mining and Exploration Inc. – AEM, AMag. 2010: Crown Minerals Inc. – EM, GL, Samp.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-1751 / 2.2731 | 41P12SW0089 | 41P12SW0089 |
| T-3020 / 2.10191 | 41P12SW0300 | 41P12SW0300 |
| T-6142 / 2.44778 | 20000006024 | 20000006024 |
| T-6382 / 2.50730 | 20000007118 | 20000007118 |
| T-2383 / W8106-00460 | 41P12SW5021 | 41P12SW5021 |
| T-2388 / W8506-00449 | 41P12SW5015 | 41P12SW5015 |
| T-2357 / 2.3559 | 41O09NW9161 | 41O09NW9161 |
| T-2202 | 41P12SW0138 | 41P12SW0138 |
| T-2008 / | 41O09NW0065 | 41O09NW0065 |
| T-3020 / 2.13771 | 41P12SE0520 | 41P12SE0520 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Geological Age: Neoarchean Geochronological Age: 2740 +/-2 MA Geochron. Age Ref.: GSC OF3384A
Dec 07, 2005 (S Fumerton) - Though the shear zone in the trenches is wider than normal in the area the shear zone is weakly developed, with the strongest shearing and mineralization along the exposed margins. The very blocky nature of the ground in the trenches reflects the intensity of intersecting joints which may be related to a larger structural feature underlying the nearby bay in Clam Lake.
| Rock Type | Rank | Composition | Texture | Relationship | Granodiorite | 1 | Host |
|---|---|---|---|---|
| Quartz Diorite | 2 | Quartz Diorite | Near | |
| Lamprophyre-Unsubdivided | 3 | Biotite | Near |
Dec 07, 2005 (S Fumerton) - The host rock varies between a coarse grained quartz diorite with the characteristic blue quartz of the Chester Granitoid complex to a siliceous granodiorite with a low mafic content. Near the trenches the host rock is cut by a series of small mafic dykes and fine grained, banded, biotite lamprophyres with flow banding. The lamprophyre, which has a chilled margin, is discordant to the shearing and mineralization. Within the sheared portion of the granodiorite the shear planes are covered with chlorite.
| 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 | Sphalerite | Economic | Gangue | ||||
| Chlorite | Alteration | Chloritic | 1 | Weak | Veins |
Dec 07, 2005 (S Fumerton) - Disseminated pyrite and some chalcopyrite occur in the sheared siliceous granodiorite together with some thin sulphide veins. There is very little quartz vein material in the trenches and the semi massive sulphide veins are sparse and less than 2cm thick. The assay results suggest that some sphalerite occurs together with the chalcopyrite.
Dec 07, 2005 (A Wilson) - Grab samples collected by the OGS in 1993 returned values of 0.31 g/t Au, 1.4 g/t Ag; 0.24 g/t Au, 0.6 g/t Ag.
Jun 12, 2013 (P Bousquet) - Grab and composite grab samples from a quartz showing 200 metres away (427635E, 5266150N) returned values of 592 ppb, 750 ppb and 818 ppb (T-6142).
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Copper | Unknown | .0386 | % | |||
| Copper | Unknown | .0588 | % | |||
| Gold | Unknown | .24 | ppm | |||
| Gold | Unknown | .31 | ppm | |||
| Lead | Unknown | .003 | % | |||
| Lead | Unknown | .0007 | % | |||
| Molybdenum | Unknown | .0003 | % | |||
| Molybdenum | Unknown | .0001 | % | |||
| Silver | Unknown | .6 | ppm | |||
| Silver | Unknown | 1.4 | ppm | |||
| Zinc | Unknown | .125 | % | |||
| Zinc | Unknown | .0015 | % |
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Fault |
| 2 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 4 | 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:
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 Date: 1979
Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.
Publisher Name: Ontario Geological Survey
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
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: 81 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: 413-414 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
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