General Information
Deposit Type(s): Volcanogenic Massive Sulphide (VMS) Kuroko Cu-Pb-Zn
Location(s): 61.536670 N, -131.622780 W
NTS Mapsheet(s): 105G12
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
In 1955 K.G. Sanders and J. Ryan of Newmont Mining Corporation of Canada Ltd discovered mineralized float in the area but did not stake the occurrence. The occurrence was staked within Hoo cl 1-123 (90072) in Jan/66 by Northlake Mines Ltd (a syndicate consisting of Augustus Exploration Ltd, Copper Ridge Mines Ltd, Silver Standard Mines Ltd, Transcontinental Resources Ltd, North Pacific Mines Ltd). In the spring of 1966, Northlake flew an airborne magnetic and EM survey over the area. Follow-up Ronka and Turam geophysical surveys located an EM conductor which the company tested with 4 drill holes (486.5 m of NX, AX and BX core).
Although other companies have explored in the immediate area, the actual occurrence has never been restaked. Please see Minfile Occurrence #105G 013 for related information.
Capsule Geology
Geological mapping (Murphy et al., 2001) shows the region is dominantly underlain by a layered sequence of Devonian to Early Mississippian metavolcanic and metasedimentary rocks belonging to the Yukon-Tanana Terrane (YTT). 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.
The occurrence lies within an area mapped as Upper Devonian and Older(?) biotite-muscovite-feldspar-quartz schist and quartz-biotite-muscovite schist with minor marble and calc-schist (unit Dq). The Tintina Fault lies to the south.
The 1966 drilling program was centred on the southwest side of the Hoole River and tested an EM conductor. Results suggest that the probable cause of the conductor was carbonaceous schist (of probable Devonian to Mississippian age), containing minor pyrrhotite, pyrite and trace chalcopyrite (MacDonald, 1966). The carbonaceous schist outcrops in the area and is described as striking 50 degrees northeast and flat lying.
In general drilling intersected a sequence consisting of: pyritic carbonaceous schist; thick intersections of variably composed calcareous to silicified, quartz+/-chlorite+/-sericite+/-graphite+/- biotite schists; and, thin to thick intersections of gneissic rock of varying composition. All units contained varying amounts of fine grained pyrite and some of the chlorite schists contained minor amounts of chalcopyrite. Hole 2-18 appears to have intersected ultrabasic (ultramafic (?)) rocks overlying graphitic schist at the top of the hole. Hole 4-18 intersected 2.5 m of quartz-sericite-chlorite schist containing variable amounts of fine grained pyrite and arsenopyrite.
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.
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).
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.
MURPHY, D.C., AND PIERCEY, S.J., 1999. 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., 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, 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.
NORTHLAKE MINES LTD, 1966. Assessment Report #019114 by A.J. MacDonald.
NORTHLAKE MINES LTD, 1966. Assessment Report #019117 by P.H. Sevensma.
NORTHLAKE MINES LTD, 1966. Assessment Report *#060253 by P.H. Sevensma.
NORTHLAKE MINES LTD, 1967. Assessment Report #060250 by P.H. Sevensma and R.T. Heard.
In 1955 K.G. Sanders and J. Ryan of Newmont Mining Corporation of Canada Ltd discovered mineralized float in the area but did not stake the occurrence. The occurrence was staked within Hoo cl 1-123 (90072) in Jan/66 by Northlake Mines Ltd (a syndicate consisting of Augustus Exploration Ltd, Copper Ridge Mines Ltd, Silver Standard Mines Ltd, Transcontinental Resources Ltd, North Pacific Mines Ltd). In the spring of 1966, Northlake flew an airborne magnetic and EM survey over the area. Follow-up Ronka and Turam geophysical surveys located an EM conductor which the company tested with 4 drill holes (486.5 m of NX, AX and BX core).
Although other companies have explored in the immediate area, the actual occurrence has never been restaked. Please see Minfile Occurrence #105G 013 for related information.
Capsule Geology
Geological mapping (Murphy et al., 2001) shows the region is dominantly underlain by a layered sequence of Devonian to Early Mississippian metavolcanic and metasedimentary rocks belonging to the Yukon-Tanana Terrane (YTT). 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.
The occurrence lies within an area mapped as Upper Devonian and Older(?) biotite-muscovite-feldspar-quartz schist and quartz-biotite-muscovite schist with minor marble and calc-schist (unit Dq). The Tintina Fault lies to the south.
The 1966 drilling program was centred on the southwest side of the Hoole River and tested an EM conductor. Results suggest that the probable cause of the conductor was carbonaceous schist (of probable Devonian to Mississippian age), containing minor pyrrhotite, pyrite and trace chalcopyrite (MacDonald, 1966). The carbonaceous schist outcrops in the area and is described as striking 50 degrees northeast and flat lying.
In general drilling intersected a sequence consisting of: pyritic carbonaceous schist; thick intersections of variably composed calcareous to silicified, quartz+/-chlorite+/-sericite+/-graphite+/- biotite schists; and, thin to thick intersections of gneissic rock of varying composition. All units contained varying amounts of fine grained pyrite and some of the chlorite schists contained minor amounts of chalcopyrite. Hole 2-18 appears to have intersected ultrabasic (ultramafic (?)) rocks overlying graphitic schist at the top of the hole. Hole 4-18 intersected 2.5 m of quartz-sericite-chlorite schist containing variable amounts of fine grained pyrite and arsenopyrite.
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.
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).
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.
MURPHY, D.C., AND PIERCEY, S.J., 1999. 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., 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, 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.
NORTHLAKE MINES LTD, 1966. Assessment Report #019114 by A.J. MacDonald.
NORTHLAKE MINES LTD, 1966. Assessment Report #019117 by P.H. Sevensma.
NORTHLAKE MINES LTD, 1966. Assessment Report *#060253 by P.H. Sevensma.
NORTHLAKE MINES LTD, 1967. Assessment Report #060250 by P.H. Sevensma and R.T. Heard.
Location Map
Last Updated: Jul 19, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1966 | Airborne Geophysics: Electromagnetic | Also magnetic survey. |
| 1966 | Drilling: Diamond | Four holes, 486.5 m. |
| 1966 | Ground Geophysics: EM | Ronka and Turam surveys. |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Snowcap
Formation: North River
Member:
Terrane: Yukon-Tanana
Period Max: Ediacaran
Age Max: 635 MA
Period Min: Devonian
Age Min: 375 MA
Rock Major: psammitic schist, pelitic schist
Rock Minor: marble, calc-silicate
Reference: Murphy et al. (2001) - YGS OF 2001-33
Geological Unit (1M): PDS
Geological Unit (250K): PDS1
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 060148 | 1972 | Geology and Geochemistry, Hoo Occurrence | Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology | ||
| 060250 | 1966 | Geological, Geochemical, Geophysical & Physical Work Report on the Hoo, EL, Gee Leo, P.S., P.G., C.W. and Z Claim Groups | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Diamond - Drilling, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Backhoe - Trenching | 4 | 486.46 |
| 019114 | 1966 | Report on the Hoo, EL, Gee Leo, P.S., P.G., C.W. and Z Group of Mineral Claim Groups | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Diamond - Drilling, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Backhoe - Trenching | 4 | 486.46 |
| 019117 | 1966 | Report on Airborne Geophysical Survey | EM - Ground Geophysics, Magnetics - Ground Geophysics |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC008063 | Pelly project economic geology map - Figure 16a | Geoscience Map (Geological - Bedrock) | |
| ARMC008066 | Regional geochemical map - Copper, lead and zinc - Pelly project | Geochemical Map | |
| ARMC014107 | Property submission - Memo and notes - Ho-Ho claim group - 105G/12 - Ref. 2066-CVL | Report | |
| ARMC016589 | Geochemical map -105G/12 - Starr Creek | Geochemical Map | |
| ARMC016583 | Geology map - 105G/12 - Star Creek | Geoscience Map (Geological - Bedrock) |
| Citations |
|---|
