Work History

Staked as Dwonk cl (YA25521) in Sep/77 by a joint venture between Cyprus Anvil and Hudson's Bay O & GL, which explored with mapping and geochem sampling in 1977, mag and EM surveys in 1978, and 5 holes (891 m) in 1980.

Capsule Geology

The area is underlain by Devono-Mississippian Earn Group clastic rocks that were deposited in Selwyn Basin, a continental margin basin with thick sequences of black carbonaceous shales deposited in euxinic conditions. Deposition of the Earn Group marks the subsidence of the entire miogeocline, local uplift and faulting that caused the formation of localized secondary basins. Sedex mineralization occurs in close association with extensional tectonism.
Cream-weathering, massive, bedded barite up to 10 m wide with interbedded bands of pyrite up to 10 cm wide occur in an east-trending sequence of Devonian-Mississippian Earn Group clastic rocks in an area of extensive overburden. The 'black clastic' assemblage includes chert pebble conglomerate, black shale, chert and turbidite. Several EM conductors were outlined but magnetic and geochemical response were negative, and no base metal sulphides were intersected in the drilling.

References

BOND, J.D., MURPHY, D.C., COLPRON, M., GORDEY, S.P., PLOUFFE, A., ROOTS, C.F., LIPOVSKY, P.S., STRONGHILL, G., AND ABBOTT, J.G., 2002. Digital compilation of bedrock geology and till geochemistry, northern Finlayson Lake map area, Southeastern Yukon (105G), Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Open File Report, 2002-7(D) and Geological Survey of Canada Open File 4243.

CYPRUS ANVIL MINING CORP., May/78. Assessment Report #090327 by W. Roberts.

CYPRUS ANVIL MINING CORPORATION, 1980. Assessment Report *#090654 by L.C. Pigage

GORDEY, S.P. AND MAKEPEACE, A.J., 2003. Yukon Digital Geology, version 2.0, S.P. Gordey and A.J. Makepeace (comp); Geological Survey of Canada, Open File 1749 and Yukon Geological Survey, Open File 2003-9 (D).

MINERAL INDUSTRY REPORT 1977, p. 88.

MURPHY, D.C. AND PIERCEY, S.J., 1999. Geological map of parts of Finlayson Lake (105G/7, 8 and parts of 1, 2, and 9) and Frances Lake (parts of 105H/5 and 12) map areas, southeastern Yukon (1:100 000-scale). Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Open File 1999-4.

MURPHY, D.C., COLPRON, M., GORDEY, S.P., ROOTS, C.F., ABBOTT, G., AND LIPOVSKY, P.S., 2001. Preliminary bedrock geological map of northern Finlayson Lake area (NTS 105 G) Yukon Territory (1:100 000 scale). Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Open File 2001-33.

MURPHY, D.C., COLPRON, M., ROOTS, C.F., GORDEY, S.P. AND ABBOTT, J.G., 2002. Finlayson Lake Targeted Geoscience Initiative (southeastern Yukon) , Part 1: Bedrock geology. In: Yukon Exploration and Geology 2001, D.S. Emond, L.H. Weston and L.L. Lewis (eds.), Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, p. 189-207.

PIERCEY, S.J., HUNT, J.A. and MURPHY, D.C., 1999. Lithogeochemistry of meta-volcanic rocks from Yukon-Tanana Terrane, Finlayson Lake region, Yukon: Preliminary results. In: Yukon Exploration and Geology 1998, C.F. Roots and D.S. Emond (eds.), Exploration and Geological Services Division, Indian and Northern Affairs Canada, p.125-138.

YUKON GEOLOGY AND EXPLORATION 1979-80, p. 182.