Work History
Staked as BM cl 1-56 (88869) in August and Sep/64 by Yukon Pacific Prospecting Group (Asarco Exploration Company of Canada Ltd, Cerro Corporation and Duval Corporation), which carried out geological mapping, magnetic surveying and hand trenching in 1965. Restaked as Max cl 1-40 (Yl7370) in Mar/67 by Max Martin and optioned until 1971 to Silver Duke Mines Ltd, which carried out magnetic and EM surveying, road building and drilled 2 holes (91 m) in 1968. In 1972, a new option was signed with Dusty Mac Mines Ltd, which added the Mar cl 1-32 (Y64438) in March and carried out geological mapping, magnetic surveying, grid soil sampling and trenching, before assigning the option to Pan Ocean Oil Ltd. Pan Ocean added the Rieta cl 1-26 (Y64853) and Wo cl 1-32 (Y70244) to the southeast in Oct/72. In 1973, Pan Ocean carried out geochemical surveying, geological mapping and bulldozer trenching of anomalies on the Rieta and Woo groups.
The claims reverted to Martin in 1974 and were transferred to Turner-Hindmarsh Tungsten Ltd, which bulldozer trenched and installed a single crushing/grinding circuit in 1977 to test the 'E' Zone. Canada Tungsten Mining Corporation added the Schee cl 1-23 (YA27483) and Lite cl 1-16 (YA27467) in Oct/77 and drilled 6 holes (342 m) in the 'E' Zone under a brief option. Turner-Hindmarsh changed its name to Tungco Resources Corporation in 1978, bulldozer trenched and drilled 8 holes (400 m) in the 'D' Zone in 1979 and drilled 4 holes (305 m) in the 'A' Zone in 1980. In 1982, the Rieta group was transferred to Score Resources Corporation and Vancliffe Resources Corporation, which carried out magnetic surveying and geological mapping in 1983. Clifton Star Resources Inc obtained the Schee and Lite claims in 1983 and carried out a brief examination that year.
Restaked as KM cl 1-49 (YB78583) by Finlayson Joint Venture Inc in Mar/96, who added TM cl 1-25 (YB78558) 3 km to the west at the same time. The company then carried out prospecting, geological mapping and magnetic surveying on the KM claims and prospecting with limited rock and stream sediment sampling on the TM claims.
Capsule Geology
Heavily disseminated galena, sphalerite and magnetite, and minor chalcopyrite, occur in at least eight separate epidote-rich skarn zones developed in Devonian-Mississippian carbonate rocks adjacent to a Cretaceous batholith. Chip samples from trenches prior to 1972 gave the following assays:
ZONE WIDTH (m) Ag (g/t) Pb (%) Zn (%) Cu (%)
MAIN ('E') 2.0 120.0 2.3 1.9 ----
WEST (800 m west) 2.0 490.3 7.9 7.8 0.2
EAST (915 m SE) 2.0 600.0 7.2 3.8 1.8
Scheelite was first recognized in the 'E' Zone in 1972, and occurs in two other main localities, the 'R' and 'A' Zones, which lie to the south and are probably contiguous with the 'E zone' over a strike length of 700 m. These zones consist of sulphides and magnetite in diopside-garnet-tremolite-actinolite-epidote-chlorite-quartz skarn. Trench sampling of the 'E' Zone in 1977 gave assays of 0.6% WO3 across a 3.6 m thickness, and 1.8 m of 0.5% WO3. Only a couple of kilograms of scheelite concentrate were produced in the mill and results of the 1977 program were disappointing. McLeod reported a 2.0 m chip assay of 939.4 g/t Ag and 4.1% W and a 4.6 m chip assay of 27.4 g/t Ag, 8.5% Pb, 6.6% Zn, 2.1% Cu and 0.3% WO3 from trenches on the 'E' Zone.
The 'D' Zone lies 100 m north of the 'E' Zone and consists of magnetite-pyrrhotite skarn which returned low values of lead, zinc, silver and copper over thicknesses up to 12.5 m. A tungsten geochemical anomaly 2300 m south of the 'A' Zone covers an area where minor galena, sphalerite, chalcopyrite, pyrrhotite and scheelite occur in tremolite-epidote skarns.
Placer Dome explored the Dolly claims for Fort Knox-type gold mineralization in 1992, but obtained no significant results.
The TM property lies within the Middle Cretaceous Mt. Billings batholith. Intrusive rocks vary from a grey, fine to medium grained quartz monzonite to granodiorite. A 50m X 20m hydrothermal breccia occurs near the margin of a feldspar porphyry dyke. A sample from a sheared limonitic zone within the granodiorite returned anomalous zinc (603ppm), Cu (195ppm), Ag (1.0 ppm), and Au (20ppb).
References
CANADA TUNGSTEN MINING CORPORATION, Mar/78. Assessment Report #091177 by D. Coffin.
CLIFTON STAR RESOURCES INC, Sep/83. Prospectus Report #062200 by C.J. Brown.
DICK, L.A., 1980. A comparative study of the geology, mineralogy, and conditions of formation of contact metasomatic mineral deposits in the northeastern Canadian Cordillera. Unpublished Ph.D. Thesis, Queen's University, p. 8, 163, 166, 169-181.
DUSTY MAC MINES LTD, Nov/72. Assessment Report #061958 by J.R. Glass.
FINLAYSON JOINT VENTURE INC, Feb/97. Assessment Report #093633 by C.G. Verley.
FINLAYSON JOINT VENTURE INC, Sep/97. Assessment Report #093709 by C.G. Verley.
MINERAL INDUSTRY REPORT 1973, p. 81-82.
PAN OCEAN OIL LTD, Oct/73. Assessment Report #060144 by J.S. Vincent.
SILVER DUKE MINES LTD, Dec/67. Assessment Report #019894 by D. Parent.
SILVER DUKE MINES LTD, May/68. Assessment Report #019126 by J.G. Baird.
SILVER DUKE MINES LTD, Aug/68. Assessment Report #019125 by G.P.E. White.
TUNGCO RESOURCES CORPORATION, Sep/79. Prospectus Report #061875 by D.W. Tully.
TUNGCO RESOURCES CORPORATION, Jan/81. Assessment Report #090702 by D.W. Tully.
YUKON PACIFIC PROSPECTING GROUP, Feb/66. Assessment Report #017454 by E.A. Ostensoe.
YUKON EXPLORATION AND GEOLOGY 1983. p. 180.
