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Vein 28, Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canadai
| Regional Level Types | |
|---|---|
| Vein 28 | - not defined - |
| Nipissing 404 | - not defined - |
| Coleman Township | Township |
| Cobalt area | Mining Area |
| Cobalt-Gowganda region | Region |
| Timiskaming District | District |
| Ontario | Province |
| Canada | Country |
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Latitude & Longitude (WGS84):
47° 23' 28'' North , 79° 41' 5'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Temiskaming Shores | 10,442 (2010) | 11.6km |
| Ville-Marie | 2,831 (2016) | 20.0km |
| Saint-Bruno-de-Guigues | 2,928 (2016) | 20.7km |
| Englehart | 1,685 (2008) | 49.2km |
Vein 28 is a system of veins and faulted veins that is exposed in open cuts and underground by a tunnel that starts with a portal (now buried) near the east shore of Cobalt Lake.
The following is from : Knight,C.W. 1922, Ontario Department of Mines , Vol.XXXI, PART II , Geology of the Mine Workings of Cobalt and South Lorrain Silver Areas.
Vein No. 28 tunnel is one of the longest tunnels in the camp. It is about
150 feet south of shaft No. 81, and it extends southeastward for some 1,800 feet from the east shore of Cobalt lake. In 1921 the tunnel was accessible and we were able to examine it. The following notes concerning the tunnel may be of interest. The Cobalt series, dipping northwestward at about 250, occupies the tunnel, or adit, for about 120 feet southeastward from the mouth of the tunnel. In this part the vein is about an inch and a half in width and consists of smaltite and calcite. It occurs in a minor fault which contains less than an inch of fault breccia and gouge. On entering the Keewatin, in which series the remaining part of the tunnel was run, the vein pinches out, but the fault appears to extend southeastward almost to the end of the tunnel, although it leaves the tunnel in one place, only to appear again towards the southeast end. The fault, where it occurs in the Keewatin, is about vertical and contains one to two inches of fault breccia and gouge. It has, here and there, lenses of calcite and quartz, fractions of an inch in width, together with a little smaltite, cobalt bloom, and nickel bloom.
About 625 feet from the portal of the tunnel, there is a crosscut striking
southwestward; in this crosscut, about 60 feet from the tunnel, there is a calcite vein three or four inches wide carrying galena, zinc blende, and copper pyrites.
The next crosscut to the southwest has a vein of calcite in it several inches wide; the vein is in a minor fault.
List of minerals for each chemical element
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Vein 28, Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada