General Information
Secondary Commodities: copper, gold
Deposit Type(s): Volcanogenic Sulphide - type not determined
Location(s): 61.663890 N, -131.183330 W
NTS Mapsheet(s): 105G11
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
The area was explored in the mid-1970¿s by Hudson Bay Exploration and Development Company Ltd following a large airborne geophysical survey. No work was carried out in the vicinity of this occurrence.
Discovered in the summer of 2001 by Steve Gordey of the Geological Survey of Canada during reconnaissance geological mapping carried out under the Finlayson Lake Targeted Geoscience Initiative (TGI), a jointly funded geological mapping program carried out by the Yukon Geology Program and the Geological Survey of Canada.
Staked in Sep/2002 as Good Grief cl 1-6 (YB94265) by I. Elash. Elash carried out a minor amount of prospecting at the time of staking.
Capsule Geology
The area is located in the northwest portion of the Finlayson Lake massive sulphide district, southeast of the Robert Campbell Highway. Geological mapping by Murphy et al. (2001), shows that the area is underlain by a large body of meta-plutonic rocks assigned to the Early Mississippian age Grass Lakes Plutonic Suite. A large roof pendent comprised of rocks assigned to the Upper Devonian to Lower Mississippian (?) Fire Lake metavolcanic unit (DF) and the underlying Upper Devonian and Older (?) quartz-rich met-clastic unit lies within the meta-plutonic body.
Gordey reported gossanous chloritic and sericitic phyllite assigned to the Fire Lake metavolcanic unit, containing zones of semi-massive sulphide, mainly pyrite. Five rocks samples returned up to 835 ppm copper, 3 079 ppm arsenic and 163 ppb gold.
References
Bond, J.D. Murphy, D.C., et al., 2002: Digital compilation of bedrock geology and till geochemistry of northern Finlayson Lake area, southeastern Yukon (105G); Exploration and Geological Services Division, Indian and Northern Affairs Canada, Open File 2002-7 (D) and Geological Survey of Canada Open File 4243.
MURPHY, D.C. ET AL., 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. ET AL., 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.
The area was explored in the mid-1970¿s by Hudson Bay Exploration and Development Company Ltd following a large airborne geophysical survey. No work was carried out in the vicinity of this occurrence.
Discovered in the summer of 2001 by Steve Gordey of the Geological Survey of Canada during reconnaissance geological mapping carried out under the Finlayson Lake Targeted Geoscience Initiative (TGI), a jointly funded geological mapping program carried out by the Yukon Geology Program and the Geological Survey of Canada.
Staked in Sep/2002 as Good Grief cl 1-6 (YB94265) by I. Elash. Elash carried out a minor amount of prospecting at the time of staking.
Capsule Geology
The area is located in the northwest portion of the Finlayson Lake massive sulphide district, southeast of the Robert Campbell Highway. Geological mapping by Murphy et al. (2001), shows that the area is underlain by a large body of meta-plutonic rocks assigned to the Early Mississippian age Grass Lakes Plutonic Suite. A large roof pendent comprised of rocks assigned to the Upper Devonian to Lower Mississippian (?) Fire Lake metavolcanic unit (DF) and the underlying Upper Devonian and Older (?) quartz-rich met-clastic unit lies within the meta-plutonic body.
Gordey reported gossanous chloritic and sericitic phyllite assigned to the Fire Lake metavolcanic unit, containing zones of semi-massive sulphide, mainly pyrite. Five rocks samples returned up to 835 ppm copper, 3 079 ppm arsenic and 163 ppb gold.
References
Bond, J.D. Murphy, D.C., et al., 2002: Digital compilation of bedrock geology and till geochemistry of northern Finlayson Lake area, southeastern Yukon (105G); Exploration and Geological Services Division, Indian and Northern Affairs Canada, Open File 2002-7 (D) and Geological Survey of Canada Open File 4243.
MURPHY, D.C. ET AL., 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. ET AL., 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.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 2002 | Other | Elash carried out minor amount of prospecting at time of staking. |
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
