General Information
Secondary Commodities: copper, gold, zinc, silver, nickel
Deposit Type(s): Unknown
Location(s): 61.601390 N, -130.219720 W
NTS Mapsheet(s): 105G09
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Extensive bulldozer trenching has been carried out on the top of a low mountain. No staking records have been found but the work was probably done soon after the highway was built in 1963-64.
G. Davidson staked the main area as the Aley cl 1-12 (YB56153) in Sept/94. In Aug/95 Davidson staked Aley cl 14-16 (YB71002) at the northwest end of the Aley claim block. Work in 1995 on the Aley claims included line cutting, VLF-EM and magnetic surveys, mapping and rock sampling.
A. McMillan added the Oop cl 1-12 (YB56699) to the northeast side of the Aley claims in Nov/94. Between May and Oct/95 McMillan added Oop cl 13-42 (YB59901) to his claim holdings. In Feb/96 McMillan optioned the claims to Minfocus International Inc which carried out geological mapping, rock and soil sampling, VLF-EM and magnetometer geophysical surveys and drilled 4 diamond drill holes (249.1 m) later in the year.
In Oct/95 Westmin Resources Ltd staked 8 Rope claims (not staked in sequential order, Rope cl 19 = YB69104) northeast of the Aley claims and northwest of the Oop claims.
Capsule Geology
The Finlayson Lake district 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 occurrence is underlain by a sequence of Lower Permian Campbell Range Succession basalt, chert and carbonaceous metaclastic rocks. Unit C?cs (Murphy et al., 2001) is mapped to the north. It consists of variably foliated phyllite, chert, and clastic rocks.
According to W. Hyde the early trenches were dug while pushing a tote road along the ridge top during construction of the Campbell Highway. The trenches exposed ultramafic rocks and quartz carbonate veining which contained nickel mineralization.
On the property, Davidson mapped a package of meta-sedimentary and meta-volcanic rocks intruded by ultramafic sills and the occasional granitic dyke. Quartz carbonate alteration zones occur in metasedimentary rocks and serpentinite around the ultramafic sills. Four samples of quartz carbonate ran from 79-200 ppb Au and 0.3-6.0 ppm Ag. One sample of volcanic breccia returned weakly anomalous Cu and Zn and a sample of peridotite returned 0.2% Ni. The magnetometer survey located strongly magnetic areas over ultramafic sills and magnetic lows coincident with areas of quartz carbonate alteration. The VLF-EM survey located strong conductors at the contacts between ultramafic sills and surrounding volcanic and sedimentary rocks. Several other
VLF-EM conductors appear to mark contacts between volcanic and metasedimentary rocks.
Mapping by Minfocus appears to generally confirm previous work . The company reported two distinct lithologic sequences; a sedimentary and a volcanic sequence, both of which were intruded by leucogabbro and serpentinite ultramafic rocks. Mineralization within the claims consists primarily of finely disseminated sulphides and euhedral pyrite cubes within the volcanic and sedimentary sequences. Chalcopyrite was identified in a quartz vein along with pyrite. White quartz veins with occasional pyrite were found throughout the claims but are most abundant in quartz-sericite schist.
The company collected both reconnaissance and detailed soil samples. The area known as the East grid returned anomalous values for Au, Ag, Cu and Zn. Rock sampling outlined highly anomalous Cu and Zn values in the volcanic sequence. The diamond drilling program tested precious metal anomalies located on the East grid. Comparison of drill logs to Murphy et al. (2001) mapping suggests that all four holes intersected Campbell Range Succession basaltic breccia, followed by chert and then argillite. Only subeconomic precious metal values were obtained from the drill program.
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.
DAVIDSON, G.S., Mar/96. Assessment Report #093398 by G.S. Davidson.
HUNT, J.A., 2001. Volcanic-associated massive (VMS) mineralization in the Yukon-Tanana Terrane and coeval strata of the North American miogeocline, in the Yukon and adjacent areas. Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Bulletin 12, 107 p.
HYDE, W. 1995. Personal communication to G. Davidson.
MINFOCUS INTERNATIONAL INC, Feb/97. Assessment Report #093556 by J. Arengi and G. Harper.
MINFOCUS INTERNATIONAL INC, Apr/97. Assessment Report #093579 by L. Godwin.
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.
YUKON EXPLORATION AND GEOLOGY 1996, p. 30
Extensive bulldozer trenching has been carried out on the top of a low mountain. No staking records have been found but the work was probably done soon after the highway was built in 1963-64.
G. Davidson staked the main area as the Aley cl 1-12 (YB56153) in Sept/94. In Aug/95 Davidson staked Aley cl 14-16 (YB71002) at the northwest end of the Aley claim block. Work in 1995 on the Aley claims included line cutting, VLF-EM and magnetic surveys, mapping and rock sampling.
A. McMillan added the Oop cl 1-12 (YB56699) to the northeast side of the Aley claims in Nov/94. Between May and Oct/95 McMillan added Oop cl 13-42 (YB59901) to his claim holdings. In Feb/96 McMillan optioned the claims to Minfocus International Inc which carried out geological mapping, rock and soil sampling, VLF-EM and magnetometer geophysical surveys and drilled 4 diamond drill holes (249.1 m) later in the year.
In Oct/95 Westmin Resources Ltd staked 8 Rope claims (not staked in sequential order, Rope cl 19 = YB69104) northeast of the Aley claims and northwest of the Oop claims.
Capsule Geology
The Finlayson Lake district 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 occurrence is underlain by a sequence of Lower Permian Campbell Range Succession basalt, chert and carbonaceous metaclastic rocks. Unit C?cs (Murphy et al., 2001) is mapped to the north. It consists of variably foliated phyllite, chert, and clastic rocks.
According to W. Hyde the early trenches were dug while pushing a tote road along the ridge top during construction of the Campbell Highway. The trenches exposed ultramafic rocks and quartz carbonate veining which contained nickel mineralization.
On the property, Davidson mapped a package of meta-sedimentary and meta-volcanic rocks intruded by ultramafic sills and the occasional granitic dyke. Quartz carbonate alteration zones occur in metasedimentary rocks and serpentinite around the ultramafic sills. Four samples of quartz carbonate ran from 79-200 ppb Au and 0.3-6.0 ppm Ag. One sample of volcanic breccia returned weakly anomalous Cu and Zn and a sample of peridotite returned 0.2% Ni. The magnetometer survey located strongly magnetic areas over ultramafic sills and magnetic lows coincident with areas of quartz carbonate alteration. The VLF-EM survey located strong conductors at the contacts between ultramafic sills and surrounding volcanic and sedimentary rocks. Several other
VLF-EM conductors appear to mark contacts between volcanic and metasedimentary rocks.
Mapping by Minfocus appears to generally confirm previous work . The company reported two distinct lithologic sequences; a sedimentary and a volcanic sequence, both of which were intruded by leucogabbro and serpentinite ultramafic rocks. Mineralization within the claims consists primarily of finely disseminated sulphides and euhedral pyrite cubes within the volcanic and sedimentary sequences. Chalcopyrite was identified in a quartz vein along with pyrite. White quartz veins with occasional pyrite were found throughout the claims but are most abundant in quartz-sericite schist.
The company collected both reconnaissance and detailed soil samples. The area known as the East grid returned anomalous values for Au, Ag, Cu and Zn. Rock sampling outlined highly anomalous Cu and Zn values in the volcanic sequence. The diamond drilling program tested precious metal anomalies located on the East grid. Comparison of drill logs to Murphy et al. (2001) mapping suggests that all four holes intersected Campbell Range Succession basaltic breccia, followed by chert and then argillite. Only subeconomic precious metal values were obtained from the drill program.
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.
DAVIDSON, G.S., Mar/96. Assessment Report #093398 by G.S. Davidson.
HUNT, J.A., 2001. Volcanic-associated massive (VMS) mineralization in the Yukon-Tanana Terrane and coeval strata of the North American miogeocline, in the Yukon and adjacent areas. Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Bulletin 12, 107 p.
HYDE, W. 1995. Personal communication to G. Davidson.
MINFOCUS INTERNATIONAL INC, Feb/97. Assessment Report #093556 by J. Arengi and G. Harper.
MINFOCUS INTERNATIONAL INC, Apr/97. Assessment Report #093579 by L. Godwin.
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.
YUKON EXPLORATION AND GEOLOGY 1996, p. 30
Location Map
Last Updated: Jul 5, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1996 | Drilling: Diamond | Four holes, 249.1 m. |
| 1996 | Geochemistry: Rock | |
| 1996 | Geology: Bedrock Mapping | |
| 1996 | Ground Geophysics: Magnetics | Also VLF_EM survey. |
| 1995 | Geology: Bedrock Mapping | |
| 1995 | Ground Geophysics: Magnetics | Also VLF survey. |
| 1964 | Trenching: Mechanical | Date of work uncertain but likely carried out during or after completion of highway in 1963-64. |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentian
Name: Slide Mountain
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Slide Mountain
Formation: Campbell Range
Member:
Terrane: Slide Mountain
Period Max: Carboniferous
Age Max: 315 MA
Period Min: Permian
Age Min: 274 MA
Rock Major: basalt
Rock Minor: chert, argillite
Reference: Murphy et al. (2001) - YGS OF 2001-33
Geological Unit (1M): CPSM
Geological Unit (250K): CPSM2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 095781 | 2011 | Soil Geochemical Sampling at the Loop Property | Soil - Geochemistry | ||
| 093579 | 1996 | A Summary of Geophysical Surveying Done in 1996 on the OOP Claims Group | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other | ||
| 093556 | 1996 | Report on a Geological Survey on the OOP Group of Claims, Finlayson Lake Area, Watson Lake Mining District, Yukon Territory, Canada | Diamond - Drilling, Rock - Geochemistry, Soil - Geochemistry, EM - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other | 4 | 249.10 |
| 093584 | 1996 | Dighem V Survey for Westmin Resources Limited Wolverine Lake Project Yukon | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics | ||
| 093398 | 1995 | Summary Report on the Aley Claims | Rock - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC014033 | Geology work sheet on map of McEvoy Creek | Geoscience Map (General) | |
| ARMC014035 | Geology and geochemistry of south part of Sheldon area- McEvoy Creek | Geoscience Map (Geological - Bedrock) | |
| ARMC018651 | Map of McEvoy Creek 105G/9 with field notations | Geoscience Map (General) | |
| ARMC018668 | Field map of Pelly Mountain area | Geoscience Map (General) | |
| ARMC014031 | Field sheet of McEvoy Creek with field notations | Geoscience Map (General) | |
| ARMC014034 | Field sheet with notations on map of McEvoy Creek | Geoscience Map (General) |
| Citations |
|---|
