Ontario Geological Survey
Permanent Link to this Record:
MDI42A05SW00002
| Record Name(s) | Karvinen - 1991, Tme Resources - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Feb-11 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Denton
Latitude: 48° 19' 32.28" Longitude: -81° 38' 49.74"
UTM Zone: 17 Easting: 452030.28 Northing: 5352696.37 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A05SE
Point Location Description: Precise
Location Method: Conversion from MDI
1961: Hollinger Consolidated Gold Mines Ltd. 5 ddh - 3944.8 ft., mag, HLEM, geol, samp. 1987: W.O. Karvinen, geol, samp, mag. 1988: W.O. Karvinen for TME Resources Inc./Esperanto Resources Ltd., str, tr, samp, IP, VLF-EM, Percussion drilling for till sampling. 1990: W.O. Karvinen for TME Resources inc./Esperanto Resources Inc. R\C drilling and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-335 / 63.1092 | 42A05SE0180 | 42A05SE0180 |
| T-3144 / 2.14206 | 42A05SE0800 | 42A05SE0800 |
| T-3144 / 2.11590 | 42A05SE0119 | 42A05SE0119 |
| T-3144 / 2.10714 | 42A05SE0125 | 42A05SE0125 |
| T-3144 / 2.13317 | 42A05SE0103 | 42A05SE0103 |
| T-3144 / 2.11589 | 42A05SE0116 | 42A05SE0116 |
| T-3144 / | 42A05SE5003 | 42A05SE5003 |
| T-335 / | 42A05SE0174 | 42A05SE0174 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
Jun 18, 2020 (G Seim) - A pink to orange, sericite and ankerite altered, quartz-feldspar porphyry hosts the Karvinen occurrence. Numerous white quartz veins and veinlets cut the porphyry. The wall rock to these veins contains disseminated pyrite (up to 2 %). The porphyry is massive to locally sheared and intrudes highly altered ultramafic rocks.
| Rock Type | Rank | Composition | Texture | Relationship | Quartz-Feldspar Porphyry | 1 | Quartz-Feldspar | Massive To Sheared | Host |
|---|---|---|---|---|
| Schist-Unsubdivided | 2 | Fuschsite-Ankerite-Magnesite | Schist | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Chalcopyrite | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | Strong | Replacement | ||
| Actinolite | Alteration | Amphibolitization | 2 | Strong | Disseminated | ||
| Chlorite | Alteration | Steatization | 3 | Strong | Replacement | ||
| Talc | Alteration | Steatization | 4 | Strong | Disseminated | ||
| Biotite | Alteration | Biotitic | 5 | Strong | Disseminated | ||
| Sericite | Alteration | Sericitization | 6 | Strong | Replacement | ||
| Ankerite | Alteration | Carbonatization | 7 | Strong | Replacement | ||
| Dolomite | Alteration | Carbonatization | 8 | Strong | Disseminated | ||
| Fuchsite | Alteration | Carbonatization | 9 | Strong | Disseminated | ||
| Magnesite | Alteration | Steatization | 10 | Strong | Disseminated |
Jun 18, 2020 (G Seim) - The No. 1 showing is a 150 ft. long outcrop into which Hollinger (?) sunk a trench in the 1960's. A map from their report reveals grab samples ranging from .04 to .08 to .14 oz. Au/ton. Three outcrops along 600 ft. of strike on the No. 2 showing have old trenches on them. These are all pyrite-rich biotitic quartz ankerite vein zones. Hollinger reports no values, but three of the grab samples collected by W. O. Karvinen, the best value was 0.01 oz.
Jun 18, 2020 (G Seim) - Quoting from Karvinen (1987) (T-3144) Alteration is common in most of the outcrops found in the vicinity of the showings. It appears to be related to vein formation and sulfide mineralization. The most obvious and widespread alteration in the mafic volcanics is the formation of actinolite rich rocks which also contain varying amounts of chlorite and talc. In places the altered rock consists of more than 90 percent oriented actinolite crystals while elsewhere the rock is quite soapy due to the presence of talc. In the No.2 zone biotite and sericite with lesser amounts of alteration minerals, while sericite and dolomite are the main constituents in the bleached altered tuff. Fuchsite, ankerite and magnesite with lesser amounts of talc and chlorite is the alteration assemblage in the ultramafic rocks and in the felsic porphyry, sericite and ankerite predominate. The extent of these important alteration assemblages which are related to gold mineralization cannot be ascertained due to poor bedrock exposure. However, it appears that at least 60 percent of the rocks on the claim group are intensely altered.
Map - Geological series, Precambrian geology of Denton Township, Cochrane District
Publication Number: P2501 Scale: 1:15,840 Date: 1982
Author: Choudhry A.G.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Timmins area, District of Cochrane
Publication Number: R219 Scale: Date: 1982
Author: Pyke D.R.
Publisher Name: Ontario Geological Survey
Location:
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