General Information
Secondary Commodities: zinc, copper
Deposit Type(s): Unknown
Location(s): 61.637220 N, -131.178610 W
NTS Mapsheet(s): 105G11
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Bev cl 182-197 (Y83676) in Oct/74 following airborne surveys by Hudson Bay Exploration and Development Company Ltd which conducted ground mag and EM surveys in 1975 and drilled 2 holes (232.0 m) in 1976.
Restaked as Mink cl 21-36 (YB70213, designated Mink East) by YGC Resources Ltd in Oct/95. YGC staked Mink cl 1-20 (YB70203, designated Mink West) 6 km to the northwest (Minfile Occurrence #105G 077) at the same time. In 1996 the company explored both claim blocks with geological mapping, prospecting and soil sampling. In 1997, YGC re-logged diamond drill core from two holes previously drilled by Hudson Bay on Mink East and carried out detailed soil sampling on Mink West.
Cominco Ltd staked the Cod cl 1-15 (YB51022) 2 km southwest of the prospect's reported position in July/94 and carried out a small soil sampling program later in the season. In Jul/96 Cominco used assessment work performed on other neighbouring claims to renew the Cod claims. In Jul/97 Cominco optioned the Cod and other neighbouring claim groups to Pacific Bay Minerals Ltd. Pacific Bay carried out reconnaissance exploration programs on several of the claim groups, but no work was performed on the Cod claims.
Capsule Geology
The Finlayson area is dominantly underlain by a layered sequence of Devonian to Early Mississippian metavolcanic and metasedimentary rocks of the Yukon-Tanana Terrane (YTT) that have been intruded by Mississippian granitic intrusions and later Jurassic, Cretaceous and Eocene intrusions (Murphy et al., 2001). The YTT is a volcanic-plutonic pericratonic arc assemblage that was strongly deformed and metamorphosed by Late Triassic time. Volcanic-hosted massive sulphide deposits exist at different stratigraphic positions within the YTT including the Fyre Lake deposit (Minfile Occurrence #105G 034) in the Devonian to lower Mississippian(?) Fire Lake mafic metavolcanic unit, the Kudz Ze Kayah deposit (Minfile Occurrence #105G 117) in the Mississippian Kudz Ze Kayah felsic metavolcanic unit, and the Wolverine deposit (Minfile Occurrence #105G 072) within the Lower Mississippian Wolverine Succession.
The original Bev claims were staked in an area of deep glacial drift.The 1976 drilling, drill holes Bev 7 and Bev 8, tested geophysical anomalies within Devonian to Mississippian flat-lying, carbonaceous pyritic schist. Soil sampling completed in 1996 failed to return any areas of interest. In 1997, YGC re-sampled the drill core which is stored at the H.S. Bostock core library in Whitehorse, Yukon. The company selected 21 intervals containing sulphide minerals (pyrite) for assaying. The results returned slightly anomalous values for Au (40 ppb) and As (860 ppm). Drill logs submitted by YGC indicate that drill hole 7 intersected carbonaceous phyllites and calcareous tuffs while hole 8 intersected banded tuffaceous rocks of a more felsic composition.
Cominco staked the Cod claims to cover airborne geophysical targets identified during a Cominco survey conducted in early 1994. Follow-up soil sampling returned several weak to moderate Cu (52 to 189 ppm) and Zn (105 to 154 ppm) soil anomalies.
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.
COMINCO LTD, Feb/95. Assessment Report #093346 by P.A. MacRobbie.
HUNT, J.A., 1997. Massive Sulphide deposits in the Yukon-Tanana and adjacent Terranes. In: Yukon exploration and Geology 1996, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 35-45.
MINERAL INDUSTRY REPORT 1975, p. 166-167; 1976, p. 205.
MORTENSEN, J.K., AND JILSON, G.A., 1985. Evolution of the Yukon-Tanana terrane: evidence from southeastern Yukon Territory. Geology, vol. 13, p. 806-810.
MURPHY, D.C., 1998. Stratigraphic framework for syngenetic occurrences, Yukon-Tanana Terrane south of Finlayson Lake: A Progress Report. In: Yukon Exploration and Geology 1997, Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, p. 51-58.
MURPHY, D.C., AND PIERCEY, S.J., 1999a. Finlayson project: Geological evolution of Yukon-Tanana Terrane and its relationship to Campbell Range belt, northern Wolverine Lake map area, southeastern Yukon. 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.47-62.
MURPHY, D.C. AND PIERCEY, S.J., 1999b. 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. AND PIERCEY, S.J., 2000. Syn-mineralization faults and their re-activation, Finlayson Lake massive sulphide district, Yukon-Tanana Terrane, southeastern Yukon. In: Yukon Exploration and Geology 1999, D.S. Emond and L.H. Weston (eds.), Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, p. 55-66.
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.
YGC RESOURCES LTD, Apr/97. Assessment Report #093578 by R.W. Stroshein
YGC RESOURCES LTD, May/98. Assessment Report #093808 by R.W. Stroshein
Staked as Bev cl 182-197 (Y83676) in Oct/74 following airborne surveys by Hudson Bay Exploration and Development Company Ltd which conducted ground mag and EM surveys in 1975 and drilled 2 holes (232.0 m) in 1976.
Restaked as Mink cl 21-36 (YB70213, designated Mink East) by YGC Resources Ltd in Oct/95. YGC staked Mink cl 1-20 (YB70203, designated Mink West) 6 km to the northwest (Minfile Occurrence #105G 077) at the same time. In 1996 the company explored both claim blocks with geological mapping, prospecting and soil sampling. In 1997, YGC re-logged diamond drill core from two holes previously drilled by Hudson Bay on Mink East and carried out detailed soil sampling on Mink West.
Cominco Ltd staked the Cod cl 1-15 (YB51022) 2 km southwest of the prospect's reported position in July/94 and carried out a small soil sampling program later in the season. In Jul/96 Cominco used assessment work performed on other neighbouring claims to renew the Cod claims. In Jul/97 Cominco optioned the Cod and other neighbouring claim groups to Pacific Bay Minerals Ltd. Pacific Bay carried out reconnaissance exploration programs on several of the claim groups, but no work was performed on the Cod claims.
Capsule Geology
The Finlayson area is dominantly underlain by a layered sequence of Devonian to Early Mississippian metavolcanic and metasedimentary rocks of the Yukon-Tanana Terrane (YTT) that have been intruded by Mississippian granitic intrusions and later Jurassic, Cretaceous and Eocene intrusions (Murphy et al., 2001). The YTT is a volcanic-plutonic pericratonic arc assemblage that was strongly deformed and metamorphosed by Late Triassic time. Volcanic-hosted massive sulphide deposits exist at different stratigraphic positions within the YTT including the Fyre Lake deposit (Minfile Occurrence #105G 034) in the Devonian to lower Mississippian(?) Fire Lake mafic metavolcanic unit, the Kudz Ze Kayah deposit (Minfile Occurrence #105G 117) in the Mississippian Kudz Ze Kayah felsic metavolcanic unit, and the Wolverine deposit (Minfile Occurrence #105G 072) within the Lower Mississippian Wolverine Succession.
The original Bev claims were staked in an area of deep glacial drift.The 1976 drilling, drill holes Bev 7 and Bev 8, tested geophysical anomalies within Devonian to Mississippian flat-lying, carbonaceous pyritic schist. Soil sampling completed in 1996 failed to return any areas of interest. In 1997, YGC re-sampled the drill core which is stored at the H.S. Bostock core library in Whitehorse, Yukon. The company selected 21 intervals containing sulphide minerals (pyrite) for assaying. The results returned slightly anomalous values for Au (40 ppb) and As (860 ppm). Drill logs submitted by YGC indicate that drill hole 7 intersected carbonaceous phyllites and calcareous tuffs while hole 8 intersected banded tuffaceous rocks of a more felsic composition.
Cominco staked the Cod claims to cover airborne geophysical targets identified during a Cominco survey conducted in early 1994. Follow-up soil sampling returned several weak to moderate Cu (52 to 189 ppm) and Zn (105 to 154 ppm) soil anomalies.
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.
COMINCO LTD, Feb/95. Assessment Report #093346 by P.A. MacRobbie.
HUNT, J.A., 1997. Massive Sulphide deposits in the Yukon-Tanana and adjacent Terranes. In: Yukon exploration and Geology 1996, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 35-45.
MINERAL INDUSTRY REPORT 1975, p. 166-167; 1976, p. 205.
MORTENSEN, J.K., AND JILSON, G.A., 1985. Evolution of the Yukon-Tanana terrane: evidence from southeastern Yukon Territory. Geology, vol. 13, p. 806-810.
MURPHY, D.C., 1998. Stratigraphic framework for syngenetic occurrences, Yukon-Tanana Terrane south of Finlayson Lake: A Progress Report. In: Yukon Exploration and Geology 1997, Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, p. 51-58.
MURPHY, D.C., AND PIERCEY, S.J., 1999a. Finlayson project: Geological evolution of Yukon-Tanana Terrane and its relationship to Campbell Range belt, northern Wolverine Lake map area, southeastern Yukon. 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.47-62.
MURPHY, D.C. AND PIERCEY, S.J., 1999b. 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. AND PIERCEY, S.J., 2000. Syn-mineralization faults and their re-activation, Finlayson Lake massive sulphide district, Yukon-Tanana Terrane, southeastern Yukon. In: Yukon Exploration and Geology 1999, D.S. Emond and L.H. Weston (eds.), Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, p. 55-66.
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.
YGC RESOURCES LTD, Apr/97. Assessment Report #093578 by R.W. Stroshein
YGC RESOURCES LTD, May/98. Assessment Report #093808 by R.W. Stroshein
Location Map
Last Updated: Aug 29, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1997 | Geochemistry: Drill Core | Re-logged drill core. |
| 1996 | Geochemistry: Soil | |
| 1996 | Geology: Bedrock Mapping | |
| 1996 | Other: Prospecting | |
| 1994 | Geochemistry: Soil | |
| 1976 | Drilling: Diamond | Two holes, 232 m. Part of larger drill program conducted on various blocks of Bev claims by Hudson Bay. |
| 1975 | Ground Geophysics: EM | Also magnetic survey. |
| 1974 | Airborne Geophysics: Electromagnetic | Also magnetic survey. |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Grass Lakes
Formation: Fire Lake
Member:
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 365 MA
Period Min: Devonian
Age Min: 357 MA
Rock Major: greenstone
Rock Minor:
Reference: Murphy et al. (2001) - YGS OF 2001-33
Geological Unit (1M): DMF
Geological Unit (250K): DMF1
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 093808 | 1997 | 1997 Geochemical Report on the Mink 21-36 (YB70213-YB70222) Mineral Claims | Drill Core - Geochemistry |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC014056 | Airborne geophysical survey - Electromagnetic map - Grass Lake area - Map 1 of 4 | Geophysical Map |
| Citations |
|---|
