Ontario Geological Survey
Permanent Link to this Record:
MDI41P13SE00004
| Record Name(s) | Jonsmith Main Showing - 1985, Jonsmith-Stetham - 1967, McKinnon - 1975, Beach Gold - 1976, Kenetogami Lake - 1976 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1994-May-09 |
| Date Last Modified | 2022-Apr-26 |
| Created By | |
| Revised By |
Primary Commodities: Uranium
Township or Area: Stetham
Latitude: 47° 46' 7.33" Longitude: -81° 38' 52.08"
UTM Zone: 17 Easting: 451461.53 Northing: 5290796.15 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41P13SE
Point Location Description: East west trench near the north tip of a peninsula at the south end of Kenetogami Lake.
Location Method: Field Visit with GPS
Access Description: Easy access is possible via the Kenetogami Lake bush road which turns north off highway 144 some 10km east of Gogama. Several kilometres north an old telephone line used to provide easy access to the showing but this has now being removed and the line is heavily overgrown.
1967 – Elieff, N.: prospecting. 1968 – Jonsmith Mines: DD – 13 – 1681m, Assays. 1969 - Jonsmith Mines: trenching, stripping. 1970 - Jonsmith Mines: DD – 4 – 156m. 1976 - Beach Gold Mines: airborne radiometric survey, ground radiometric survey, prospecting program. 1977 – Beach Gold Mines: DD – 13 – 1681m. 1980 - Beech GML: radon gas survey. 1982 - Beech GML: magnetic and electromagnetic survey. 2006 – Delta Uranium Inc.: AMag, AEM, ARAD. 2008 – Delta Uranium Inc.: assays, prospecting
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-5668 / 2.37333 | 20000002722 | 20000002722 |
| T-5941 / 2.40754 | 20000003951 | 20000003951 |
| T-1893 / 2.2505 | 41P14NW0352 | 41P14NW0352 |
| T-1755 / 2.2131 | 41P13SE0005 | 41P13SE0005 |
| T-2188 / | 41P13SE0011 | 41P13SE0011 |
Province: Superior
Geological Age: Neoarchean Geochronological Age: 2660 MA Geochron. Age Ref.: OF 3384D
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Host |
|---|---|---|---|---|
| Pegmatite | 2 | Granite Pegmatite | Host | |
| Amphibolite | 3 | Amphibolite | Host |
Dec 07, 2005 (S Fumerton) - The dominant amphibole rich granite in the immediate area of the showing displays a graphitic texture. This granite contains up to 30% mafic minerals and is coarse grained, <2cm. The pegmatite along which the trench appears to be excavated is very coarse grained (<20cm) and quartz poor. The strong red colour associated with both the pegmatite and graphic granite may in part be due alkali alteration. Drilling indicated that the best mineralization occurs within a massive - sheared gabbro to amphibolite which may be xenolith. This mafic unit strike north south and underlies the lake east of the peninsula. No indication is apparent in the outcrop.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pitchblende | Economic | Gangue | ||||
| 2 | Gummite | Economic | Gangue | ||||
| 3 | Uraninite | Economic | Gangue | ||||
| Hematite | Alteration | Hematization | 1 | Medium | Disseminated | ||
| Chlorite | Alteration | Chloritic | 2 | Weak | Disseminated |
Dec 07, 2005 (S Fumerton) - In the trench the best mineralization is associated with red hematite stained granite with up to 15% mafic minerals. These mafic minerals consist of amphibole, chlorite, specularite and uraninite. Gummite occurs as a surface alteration mineral. Sparse yellow brown surface alteration is associated with some small milky quartz veinlets that cut the pegmatite and also occur locally as an aureole around amphibole grains in the graphic granite. The nature of the mineralization in the mafic rocks is unknown.
Dec 07, 2005 (G Seim) - Jonsmith drill results: Hole 1: remained in granitic rock with low values in pegmatie. Hole overshot the Main Zone. Hole 2: 503 ft. to 533 ft. averaged 0.03% U3O8 (0.6 lbs./ton). Hole 3: 100 ft. intersection ranging from 0.012% U3O8 over 50 ft. to 0.11 % U3O8 (2.2 lbs./ton) over 12.8 ft. Hole 4: 0.048% U3O8 over 22 ft. and 0.025% U3O8 over 42.5 ft. Averaged 0.033% U3O8 over 64.5 ft. Hole 5: no intersection. Hole 6: 58 ft. averaging 0.008% U3O8 not in main zone. Hole 7: no reported sampling. Hole 8: selected sampling yielded values from 0.005% U3O8 to 0.4% U3O8 with no width given. Hole 9: no intersection. Hole 10: 43.6 ft. averaging 0.23% (0.46 lbs/ton). Beach Gold Mine drilling Hole B-1: 27ft. averaging 0.026% U3O8 including 7 ft of 1.09 lbs./ton. Hole B-2: 55 ft. averaging 0.016% U3O8 including 5 ft. of 1.36 lbs./ton. Hole B-3: 10 ft. averagin 0.12% U3O8. Hole B-4: No intersection. Hole B-5: No intersection.
Dec 07, 2005 (A Wilson) - Significant assays were restricted to core lengths of less than one foot, usually near fractures or veins. One section of 12.8 feet contained 2.2 lbs per ton U3O8. Rocks exposed in the pits were found to contain disseminated uranium mineralization associated with hematite stained orthoclase. Samples were reported to assay up to 7 lbs per ton U3O8.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Uranium | Unknown | .004 | % | |||
| Uranium | Unknown | .0021 | % |
| Rank | Classification |
|---|---|
| 5 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 10 | Disseminated |
| 5 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 150 | 10 | 165 | N/A | N/A |
Date: Oct 25, 1967
Geologist: P George
Notes: The surface showing was discovered on July 4, 1967 by Nick Elieff, a resident of Gogama for 35 years. Mr. Elieff has prospected for Jonsmith Mines for approximately 17 years. A greatly increased search for uranium in Ontario and Quebec in 1967 led Mr. Elieff to suggest the Stetham township area to Jonsmith Mines as he was aware of the existence of pegmatitic rocks there as a result of having prospected for beryllium in that area. Following three days of prospecting he discovered what is now the main showing. Samples from this pit are reported to assay up to 7lbs U3O8 per ton. Since that time Mr. Elieff has prospected much of the ground surrounding the showing with a scintillometer and has discovered a number of anomalous radioactive areas. The was visited by the author and E.J. Leahy, accompanied by Mr. Elieff who kindly pointed out areas of interest. The following varieties of granitic rocks were seen near the showing. 1. A very coarse grained, massive, pegmatitic leucogranite composed of quartz and pink orthoclase. 2. A medium to coarse grained, massive granitic rock, locally pegmatitic and composed of quartz, pink orthoclase, and minor biotite. 3. A very coarse grained pegmatitic rock composed of quartz, flesh to red coloured orthoclase, and hornblende. The hornblende displays a peculiar 'graphitic' texture. 4. A very coarse grained, reddish-grey rock composed of orthoclase with minor quartz. The uranium mineralization appears to associated with this rock type. The granitic rocks contain the occasional inclusion of mafic metavolcanic rock and are cut by at least one diabase dyke. A sheared mafic dyke approximately two feet wide cuts the granitic rocks in the pit on the main showing. ( PRECIS )
Map - Gogama sheet, districts of Sudbury and Timiskaming
Publication Number: P0151 Scale: 1:126,720 Date: 1997
Author: Savage W.S., Fenwick K.G.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geology, Swayze greenstone belt, Mattagami Lake, Ontario
Publication Number: OF 3384D Scale: 1:50,000 Date: 1999
Author: Heather, K B; Shore, G T
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/210452
Map - Timmins-Kirkland Lake, geological compilation series, Cochrane, Sudbury and Timiskaming districts
Publication Number: M2205 Scale: 1:253,440 Date: 1973
Author: Pyke D.R., Ayres L.D., Innes D.G.
Publisher Name: Ontario Division of Mines
Location:
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-78 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Book - N MINER JUNE 30, 1977
Publication Number: N/A Date: 1977
Author:
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Location:
Book - N MINER MAY 12, 1979, P-5
Publication Number: N/A Date: 1979
Author:
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Location:
Book - N MINER SEPT 14, 1967
Publication Number: N/A Date: 1967
Author:
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Location:
Book - N MINER SEPT 23, 1976
Publication Number: N/A Date: 1976
Author:
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Location:
Mono - Uranium and thorium deposits of northern Ontario
Publication Number: MDC009 Page: 83-84 Date: 1968
Author: Robertson J.A.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Uranium and thorium deposits of northern Ontario
Publication Number: MDC025 Page: 114 Date: 1984
Author: Robertson J.A., Gould K.L.
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: 488-489 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
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