|Years of Operation:||1908 – 1947|
|Ounces of Gold Produced:||30,068|
Golden Gate Mine (Past Producer)
Approximately 4 miles southwest of Kirk land Lake, north of Otto Lake, in southern Teck Township and northern Otto Township. Shafts in patented claim T2692 (old Lucky Cross Mine) in Teck Township and patented claim L9592 (old Swastika Mine) in Otto Township. Village of Swastika occupies part of the property. Latitude 48.11 0, Longitude 80.100 . Map reference: ODM 1945-1, Township of Teck.
The property is underlain by Keewatin metavolcanics, Timiskaming metasediments (includ ing tuffs), carbonates, various types of felsic intru sive rocks and later diabase and lamprophyre dikes. At the Golden Gate Mine, the veins lie in an area where many irregularly shaped bodies of syenite porphyry intrude the mafic metavolcanics. The veins trend approximately N530E and dip steeply north. They have been cut off by a wide zone of faulting, known as the “A” Fault, which dips450S. The productive veins have not been found on the footwall side of the “A” Fault where another approximately parallel fault with a slightly steeper dip occurs. This fault, known as the Valley Faujt, was mapped at surface in the northern part of the property as a strong shear zone with siliceous carbonate alteration located at or near the Timiskaming-Keewatin contact. The Valley Fault is the continuation of the Larder Lake “Break” west of the Amikougami Creek crossfault. Underground diamond-drilling intersected green carbonates and quartz stringers with low gold values in the Valley Fault. Geological conditions at the Crescent Kirkland Mine (old Swastika Mine) are quite similar to those at the Golden Gate Mine. The rocks in the mine workings consist of Keewatin metavolcanics intruded by ir regularly shaped bodies of diorite, granodiorite, and lamprophyre. Quartz veins intersect all these forma tions. The vein quartz is locally mineralized with pyrite and small amountsof galena and molybdenite. The entire vein zone has been badly disturbed by a system of post-ore faults; the strongest of these strike northeast and are close to vertical. Because gold values occur along certain of these structures, either some of the movement may have been pre- ore or some gold deposition occurred later than that of the main veins.
Gateford Mines Limited.
a) of the old Swastika (Crescent Kirkland) Mine:
1908-1912: Gold discovered in claim T9592. Three- compartment shaft (Golden Gate No.3) to 400 feet and approximately 3,000 feet of underground development on levels at 35, 100, 200, 300, and 400 feet. Two-stamp mill installed in 1909 and some ore milled; five-stamp mill installed in 1911 and 520 tons of ore milled; ten-stamp mill under construction in 1912 but probably never finished. All work by Swastika Mining Company Limited.
1936-1939: Underground workings dewatered, re conditioned, and sampled, 1,512 feet of lateral development, 1,866 feet of underground diamond- drilling, 4,584 feet of surface diamond-drilling and 2,000 feet of surface trenching by Crescent Kirkland Gold Mines Limited.
1940-1942: Adit with 640 feet of lateral develop ment in claims L9591 and L9759 and 993 feet of underground development on the 200- and 300- foot levels of the No.3 Shaft by Golden Gate Min ing Company Limited. Some gold produced from ore removed through the adit. Underground opera tions suspended in April 1942.
1943-1944: Considerable surface diamond-drilling by Golden Gate Mining Company Limited.
1945: 434 feet of underground development on the 100-, 300-, and 400-foot levels and five surface diamond-drill holes (4,800 feet) by Golden Gate Mining Company Limited.
1946-1949: Golden Gate No.3 Shaft deepened to 676 feet with new levels at 525 and 650 feet, 6,477 feet of underground development and 164 under ground diamond-drill holes (31,849 feet). Some ore milled in 1947. Work by Kirkland Golden Gate Mines Limited. Underground development to December 31, 1948 totalled 4,780 feet of drifting, 6,979 feet of crosscutting and 982 feet of raising. Mine closed in 1949. 171
b) of the old Lucky Cross Mine:
1910-1912: Gold discovered in claim T2692. Shaft (Golden Gate No.1), inclined 650, to 200 feet with at least 800 feet of lateral development on the 100- foot level. Five-stamp mill erected and some gold recovered. Work by Lucky Cross Mines Limited.
1915-1916: Works dewatered and 200 feet of lateral development on the 100-foot level by Tretheway Silver-Cobalt Mining Company Limited.
1922-1923: Shaft deepened to 360 feet, lateral development on the 100-, 200-, and 350-foot levels, and diamond-drilling by Kirkland Gateway Gold Mines Limited.
1936-1942: No.1 Shaft dewatered and recondition ed, new three-compartment shaft (Golden Gate No.2) to 971 feet, 17,893 feet of underground development on eight levels, 33,552 feet of under ground diamond-drilling, 10 surface diamond-drill holes (1,120 feet) and 1,500 feet of trenching. 100-ton mill installed in 1938 and operated from 1938 to 1941. Work by Golden Gate Mining Com pany Limited. Mine and mill closed in April 1942.
c) of work on both properties after consolidation:
1941-1942: 118 underground diamond-drill holes (14,242 feet), 13 surface diamond-drill holes (2,786 feet), and 500 feet of trenching by Golden Gate Mining Company Limited.
1950: Nine diamond-drill holes (5,658 feet) by Gateford Mines Limited.
1974: Geophysical surveys and diamond-drilling by Gateford Mines Limited.
1975: Surface work and diamond-drilling (10,548 feet) by Dickenson Mines Limited.
Please note: The above information was compiled from accounts given in ODM Annual Reports. The accuracy of some of the data, particularly for work performed prior to 1920, is suspect due to obvious discrepancies between references which could not be resolved.
|Year||Lucky Cross Section||Swastika Section|
|Value Ore Milled||Value Ore Milled|
|Prior to 1922||$14,006||2,500||$11,457||2,190|
Thus total production from the two properties was S1.062,979 from 103,684 tons of ore. This agrees very well with the figures given for Kirkland Golden Gate and Swastika in ODM 1954, Vol.63, pt.1, p.13 and 14, respectively. It is not possible to give production in terms of the amounts of gold and silver, since most annual production was reported only as a dollar figure. However, it is known that the average recovered grades for the Lucky Cross and Swastika sections were 0.31 and 0.21 ounce of Au per ton respectively, for an overall weighted
average recovered grade of 0.29 ounce of Au per ton.
Mineral Deposit Files, Geoscience Data Centre, Ontario Geological Survey, Toronto:
Teck Township, Golden Gate, Harper (1974).
ODM 1948, Vol.57, pt.5, p.47-49 (Kirkland Golden Gate Mines Limited).
ODM 1954, Vol.63, pt.1, p.13 (Kirkland Golden Gate), 14 (Swastika).
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.
Swastika Mining Company