Ontario Geological Survey
Permanent Link to this Record:
MDI31M05NE00071
| Record Name(s) | Nipissing 401 Parcel 1 - 1904, Nipissing-O'Brien Mines Ltd. - 1952, Agnico Mines Ltd. - 1958 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1980-Oct-21 |
| Date Last Modified | 2022-Dec-06 |
| Created By | |
| Revised By |
Primary Commodities: Silver, Cobalt
Township or Area: Coleman
Latitude: 47° 23' 36.14" Longitude: -79° 40' 27.22"
UTM Zone: 17 Easting: 600049.65 Northing: 5249731.5 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05NE
Point Location Description: Shaft
Location Method: Data Compilation
pre-1923: 3 shafts and considerable underground workings. 1956: underground diamond drilling was carried out from workings of No.128 shaft.
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Host |
|---|---|---|---|---|
| Lamprophyre-Unsubdivided | 2 | Intrudes | ||
| Siltstone | 3 | Cobalt | Silver-Cobalt | Is |
| Vein | 4 | Is |
Aug 02, 2017 (A Wilson) - Keewatin volcanics with steep dip and northwest strike are intruded by Haileyburian lamprophyre and overlain by shallow dipping Cobalt sediments up to 200 ft. thick; formerly the above rocks were overlain by the Nipissing sill which outcrops just east of the claim. Highly productive silver-cobalt veins strike NNW in NE of claim; others with similar strike occur in the southwest. Profitable veins e.g. no. 26, strike northeast in the southeast of the claim. Productivity of veins depends on proximity to Nipissing Sill and to Keewatin-Cobalt unconformity. Rich, secondary silver occurs locally as a soft black film. Sulphides, that include chalcopyrite, galena and sphalerite, occur in Keewatin interflow bands.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 2 | Silver | Economic | Ore | ||||
| 3 | Smaltite | Economic | Ore |
Aug 02, 2017 (A Wilson) - This claim was highly productive. The distribution of the areas containing the productive veins is of interest. In the northeasterly part of the claim is a zone in direction west of north with veins, as Nos. 60, 65, 127 and 10 striking in the same direction, which produced handsomely. In the southwest corner is another zone with veins as No. 128. In the southeast corner is a zone of veins striking north easterly, as vein No. 26, which were profitable. In the northwest part of the claim is a considerable area on which negligible veins and no productive ones have been found. The occurrence of interflow Keewatin sedimentary bands in close association with veins Nos. 60 and 65 in the northeast corner of the claim seems significant. The interflow bands would seem to have been an important factor in determining the positions of the veins. The productive zone in the southwest corner of the claim has veins with a strike for the most part similar to those mentioned above. This strike however would seem to cut across more southerly than the strike of the (probable) Keewatin sedimentary band below the Cobalt series.
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1908 | 1 |
Silver |
MDC010, p.164-165 | production included in MDI31M05NE00072 - estimated to be >1.5 million oz.: 146,073 lbs cobalt; 6,900,708 oz. Ag, 7920 lbs Ni. |
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 84-85, 164-165 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on part of Coleman Township, concession 6, lots 1 to 6, District of Timiskaming
Publication Number: PR1961-03 Page: 95-104 Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Cobalt silver area, northern sheet, Timiskaming District
Publication Number: M2050 Scale: 1:12,000 Date: 1997
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
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