General Information
Secondary Commodities: gold, tungsten, molybdenum
Deposit Type(s): Porphyry Mo (Low F-Type)
Location(s): 60.922780 N, -128.817220 W
NTS Mapsheet(s): 105A15
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Molly cl 1-6 (YA35543) in Sep/78 by A. Black, and optioned in 1980 to Hillside Energy Corporation, which performed mapping in 1980 and 1981. Restaked as Jack cl 1-4 (YA70573) in Sep/83 by A. Black and transferred to Exciting Resources Ltd, which performed mapping and trench sampling in 1984 and mag and VLF-EM surveys in 1987. The Jill cl 1-4 (YB 33241) were added in Jul/90, lapsed in Aug/91 and were restaked as Paul cl 1-4 (YB34258) by A. Black in Sep/91. Black performed line cutting on the Jack and Paul claims in Sep/92 and restaked the occurrence as Paula cl 1-8 (YB35110) in Oct/92.
Placer Dome Inc staked Murray cl 1-50 (YB34563) immediately south of the Paul/Paula group in Apr/92, and performed reconnaissance prospecting and geochemical sampling.
In July/94 A. Black restaked the showing as the Donna cl 1-8 (YB51324). In Jul/96 Black drilled 1 hole (57.9 m) on Donna cl 5 (YB51328).
Capsule Geology
Molybdenite occurs with pyrite in a north-northeast trending fracture zone which cuts mid-Cretaceous granodiorite of the Mount Billings Batholith. The zone has been traced for a length of about 800 m.
Mineralization is associated with weak gypsum-chlorite-zeolite alteration. Quartz veins are up to 15 cm wide. A visual grade estimate of the best mineralization is less than 0.5% MoS2. Three samples collected in 1985 averaged 0.37 g/t Au, 0.04% MoS2 and 0.01% W.
Placer Dome explored the Murray claims for Fort Knox-style gold mineralization, but obtained disappointing results. Black filed a hand written summary of his drill hole. The hole cored granodiorite along its entire length with occasional intervals of green altered volcanics. Quartz veins and/or pyrite veinlets were common throughout the hole. Narrow pink zeolite veinlets were noted in few intersections. No assay results were filed with the report.
Staked as Molly cl 1-6 (YA35543) in Sep/78 by A. Black, and optioned in 1980 to Hillside Energy Corporation, which performed mapping in 1980 and 1981. Restaked as Jack cl 1-4 (YA70573) in Sep/83 by A. Black and transferred to Exciting Resources Ltd, which performed mapping and trench sampling in 1984 and mag and VLF-EM surveys in 1987. The Jill cl 1-4 (YB 33241) were added in Jul/90, lapsed in Aug/91 and were restaked as Paul cl 1-4 (YB34258) by A. Black in Sep/91. Black performed line cutting on the Jack and Paul claims in Sep/92 and restaked the occurrence as Paula cl 1-8 (YB35110) in Oct/92.
Placer Dome Inc staked Murray cl 1-50 (YB34563) immediately south of the Paul/Paula group in Apr/92, and performed reconnaissance prospecting and geochemical sampling.
In July/94 A. Black restaked the showing as the Donna cl 1-8 (YB51324). In Jul/96 Black drilled 1 hole (57.9 m) on Donna cl 5 (YB51328).
Capsule Geology
Molybdenite occurs with pyrite in a north-northeast trending fracture zone which cuts mid-Cretaceous granodiorite of the Mount Billings Batholith. The zone has been traced for a length of about 800 m.
Mineralization is associated with weak gypsum-chlorite-zeolite alteration. Quartz veins are up to 15 cm wide. A visual grade estimate of the best mineralization is less than 0.5% MoS2. Three samples collected in 1985 averaged 0.37 g/t Au, 0.04% MoS2 and 0.01% W.
Placer Dome explored the Murray claims for Fort Knox-style gold mineralization, but obtained disappointing results. Black filed a hand written summary of his drill hole. The hole cored granodiorite along its entire length with occasional intervals of green altered volcanics. Quartz veins and/or pyrite veinlets were common throughout the hole. Narrow pink zeolite veinlets were noted in few intersections. No assay results were filed with the report.
Location Map
Last Updated: Jul 26, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1996 | Drilling | One hole, 57.9 m. |
| 1992 | Geochemistry: Soil | Also rock sampling. |
| 1992 | Other: Prospecting | |
| 1987 | Ground Geophysics: Magnetics | Also VLF-EM survey. |
| 1984 | Geology: Bedrock Mapping | |
| 1984 | Trenching: Mechanical | |
| 1981 | Geology: Bedrock Mapping | |
| 1980 | Geology: Bedrock Mapping |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - platformal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup:
Group/Suite: Hyland River
Formation:
Member:
Terrane:
Period Max: Cretaceous
Age Max: 106 MA
Period Min: Cretaceous
Age Min: 100 MA
Rock Major: biotite granodiorite
Rock Minor: hornblende-biotite granodiorite, minor muscovite-biotite quartz monzonite
Reference: Jilson et al. (1980) - Yukon EMR ARMC 011986
Geological Unit (1M): mKH
Geological Unit (250K): mKgH
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 092523 | 1987 | Preliminary Grid Preparation and Geophysical Work on the Molly (Jack) Gold-Molybdenum Prospect, Watson Lake Mining District. | EM - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other | ||
| 090873 | 1981 | Geological Mapping and Prospecting on the Molly Claims, Watson Lake Mining Division, Yukon Territory. | Detailed Bedrock Mapping - Geology, Prospecting - Other | ||
| 090385 | 1978 | Geological, Geophysical, Geochemical Report on the Ray 1-80 Mineral Claims | Soil - Geochemistry, Bedrock Mapping - Geology, Magnetics - Ground Geophysics |
Related References
| Number | Title | Page(s) | Document Type |
|---|
| Citations |
|---|
| Gordey, S.P. and Makepeace, A.J. (compilers), 1999. Yukon Digital geology. Geological Survey of Canada, Open File D3826, and Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 1999-1 (D). |
