Cheney Mine, Gould Township, Algoma District, Ontario, Canada
|Latitude & Longitude (WGS84):||46° 30' 10'' North , 83° 24' 4'' West|
|Latitude & Longitude (decimal):||46.50278,-83.40111|
1916: Numerous trenches; a few small open-pits; inclined shaft sunk 70 feet with a few feet of drifting on the 50 foot level; 7 carloads of ore shipped from which 33 468 lbs of copper having a value of 8 564, were recovered. Work was carried out by Timmins Interests, under option from Cheney Copper Mines Ltd.
1928-29: Shaft sunk to 150 feet; 1625 feet of drifting and 860 feet of cross-cutting on 150 foot level. 2514 feet of surface d.d. in 7 holes by Sudbury Basin Mines Ltd.
1955-56: 4723 feet of surface d.d. in 8 holes by Sudbury Basin Mines Ltd. 1960 MAG, EM surveys by Rothsay Mines Ltd.
1966-67 Mine rehabilitated, approximately 3500 tons of material shipped to mill of Copper Concentrators Ltd. in Twp. 168.
1989: Blue Heaven Resources Corp. conducted field work including trenching, sampling and diamond drilling. Diamond drilling included 14 holes were drilling on the adit zone vein zone No. 1 totaling 2, 736 feet.
The area is generally underlain by sediments of the Gowganda Formation consisting of conglomerate, greywacke, argillite, quartzite and a few thin bands of impure limestone. These sediments have been intruded by dikes and sills of Nipissing diabse and Olivine diabase. The sediments dip gently to the north and north east with the Nipissing quartz diabase generally following the strike of the sediments but cutting steeply across the dip. The later Olivine diabase cut across the strike of the sediments and the veins. The following description of the geology of the property is taken from a report of Mr W. H. Gross dated June 8th, 1955 and quoted in its entirity. 'The rocks in te vicinity of the mine consist of conglomerates and thin interbedded quartzites of the Gowganda Formation. The sediments strike north west and dip gently northeast, and have been intruded by steep dipping dykes and flat sills of diabase. The quartzite in the mine area are thin, lens-like and irregular and could not be traced for any distance and it is doubtful if they influence the ore picture. The argillites occur noth of the mine; they are high in the sedimentary sequence and therefore have little bearing on the geology of the main vein. On the Cheney the conglomerates have a dark grey argillaceous looking matrix. South of the mine (representing the rocks to be found at depth in the mine) the matrix, on the whole seems to have a more siliceous composition. This feature may have a bearing on the characteristics of the vein with the depth. The copper values on the Cheney occur in a quartz vein that strikes generally east-west and dips 45-60 degrees south. The vein is extremely variable in its character. It may vary from a complex stock work of quartz veins over a width of up to seventeen feet of may range down to a single thin stringer. The vein contain good copper values in two places; one is near the shaft, the other about 2500 feet west of the shaft.
13 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
1600 - 2500 Ma
|Huronian Supergroup (2.2 Ga to 2450 Ma); Cobalt Group; Gowganda Formation|
Age: Proterozoic (1600 - 2500 Ma)
Stratigraphic Name: Huronian Supergroup (2.2 Ga to 2450 Ma); Cobalt Group; Gowganda Formation
Comments: Southern and Superior Province
Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1.