|Years of Operation:||1927 – 1961|
|Ounces of Gold Produced:||1,674,808|
Sylvanite Mine (Past Producer)
Immediately north of the town of Kirk land Lake, in eastern Teck Township. No.2 (Main) Shaft in patented claim L2100; No.4 Shaft in patented claim L2101 (claim L11398 on ODM Map 1945-1). Latitude 48.150 , Longitude 80.020 . 178 Map reference: ODM 1945-1, Township of Teck.
The southern part of the property is under lain by part of the main Algoman syenite porphyry stock in the Kirkland Lake camp. Flanking the main intrusive body to the north is a complex mixture of Timiskaming metasediments (mainly greywacke and conglomerate) and intrusive rocks. These northern intrusions consist of augite syenite and syenite por phyry, both of which form dikes trending N200 E or approximately parallel to the long axis of the main porphyry stock. The strongest and most persistent break in the mine is the zone of maximum displacement of the Kirk land Lake Fault which occurs near the south side of a 1,500-foot wide zone of pre-ore faulting and frac turing. Most of the fractures dip south, some steeply and others at flatter angles. Veins are found in all rock formations within the fractured zone and pass from one rock type into another without any apparent change in strength. The ore shoots were not continuous over great distances, but were a series of bodies having irregular outlines. The Kirk land Lake Fault dips south in the upper part of the mine but swings through the vertical and continues with a northerly dip below the 3,000-foot level. The rocks on the south side of the fault have been thrust upwards with respect to those on the north side. Several post-ore strike faults in the mine dip to the north. The general direction of movement along this set of faults is north side up. Crossfaults, the most important of which are the K and Sylvanite Faults, displace the strike faults.
Pre-1913: Considerable work on the Wright and Robbins claims without any very encouraging results.
1913-1914: Trenching and two prospect shafts (40 and 50 feet) by Sylvanite Gold Mines Limited.
1916-1917: Shaft (possibly Sylvanite No.2) is 120 feet and 169 feet of lateral development on the 100- foot level by Sylvanite Gold Mines Limited. 1922-1927: No.2 Shaft to 1,526 feet, No.3 Shaft to 118 feet, 29,025 feet of underground develop ment on levels at 129, 260, 393, 500, 750, 875, 1,000, 1,250, 1,375 and 1,500 feet, and at least 9,000 feet of diamond-drilling. 200-ton mill put into operation in May 1927. All work by Sylvanite Gold Mines Limited.
1928-1961: The mine was serviced by four shafts (the Nos.1 and 3 Shafts were inactive when the mine closed), and by a winze from the 3,150-foot level which took the works to a depth of 5,550 feet. Underground development was carried out on 41 levels and, during the life of the mine, totalled: 233,104 feet of drifting, 70,648 feet of crosscutting, and 74,718 feet of raising. Production was continuous from 1927 until the mill closed down in September 1961. During the last IV* months of operation, the mill handled an average of 446 tons of ore per day, compared to a maxi mum of 600 tons per day in 1940. 1964: All interests sold, assets distributed to share holders, and charter surrendered.
|Year||Gold||Silver||Ore Milled||Recovered Grade|
|(ounces)||(ounces)||(tons)||(ounce of Au per ton)|
Canadian Mines Handbook 1961, p.234.
CIMM 1948, Structural Geology of Canadian Ore Deposits, Vol.1, p.644-653.
ODM 1928, Vol.37, pt.2, p.134-140.
ODM 1948, Vol.57, pt.5, p.177-183.
ODM 1963, Vol.71, p.62-64.
ODM 1964, MRC3, p.65, 66.
Resident Geologist’s Files, Ontario Ministry of Na tural Resources, Kirkland Lake.
Gordon, J.B., Lovell, H.L., de Grijs, Jan, and Davie, R.F.
1979: Gold Deposits of Ontario, Part 2: Part of District of Cochrane, Districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and Counties of Southern Ontario; Ontario Geological Survey, Mineral Deposits Circular 18, 253p.