General Information
Secondary Commodities: copper, silver, gold
Aliases: Area One, Cirque Lake
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 64.214440 N, -137.972220 W
NTS Mapsheet(s): 116A04
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked by Noranda Exploration Company Ltd as Cub cl 1-174 (YB38943) in Oct/90, which carried out prospecting, geological mapping, geophysical and geochemical surveying and trenching in 1991.
Restaked within a large block of Ob claims (approximately 370) in Nov/96, by a private company Core Exploration Ltd. The company staked a large block of Wow claims to the north and east at the same time. In Dec/96 International Kokiak Resources Inc, another private company, optioned these claims and a large block of over 2 500 adjoining claims collectively known as the Oki-Doki project from Core Exploration.
In the summer and fall of 1997 International Kodiak carried out a regional program of geochemical stream sediment sampling of secondary drainages, soil sampling of drainage divides, prospecting, geological mapping and airborne geophysical surveying (in conjuction with the Geological Survey of Canada). The company carried out geochemical sampling, geological mapping, prospecting and hand trenching in the immdediate area of the occurrence in 1998 and 1999.
Capsule Geology
The Bear Mountain (later called Cirque Lake) showing consists of a 0.6 x 75 m vein of arsenopyrite, chalcopyrite and scheelite which cuts hornfelsed calcareous siltstone of the Ordovician to Lower Devonian aged Road River assemblage at the margin of a mid-Cretaceous monzonite stock. A specimen of massive arsenopyrite assayed 10 g/t Au. Kubota trenching showed that the vein follows a narrow east-west shear which is locally discordant to compositional banding in the hornfels. The hydrothermally altered hanging wall of the vein consists of 32 cm of white clay with grey patches of arsenopyrite. The footwall consists of up to 1 m of bleached, silicified hornfels underlain by another metre of yellow clay gouge.
Arsenopyrite float is also associated a with recessive linear zones of vuggy, orange-weathering banded carbonate breccia cutting the stock. These breccia zones are subvertical, up to 10 m wide and also strike east-west, parallel to a dominant set of cooling joints in the intrusion. Similar east-west veins have been explored on Antimony Mountain to the northwest (Minfile Occurrence #116B 094), and on the Rimrock (Lorrie) property to the northeast (Minfile Occurrence #116A 013).
International Kodiak identified an Au, As, Sb, Hg, Bi geochemical signature defining a source area greater than 5 sq km surrounding the occurrence, as well as several radiometric anomalies associated with the intrusive stock. Sampling revealed high As levels throughout the area and elevated gold values from feldspar-quartz porphyry and massive arsenopyrite veining (540 and 4 000 ppb, respectively).
Kodiak¿s work in 1998 and 1999 focused on Noranda¿s old trenches (Bear Mountain showing) and the numerous east-west, subparallel linear structures trending west away from the trenched area, that they called Area 1 and subsquently Cirque Lake. Continuous rock chip sampling from around the showing returned an average value of 340 ppb Au over 40 m. Sampling of mineralized quartz veins within and adjacent to the lineaments to the west returned high values for base and precious metal as well as bismuth and antimony. The quartz veins, similar to those in the trenched area, are up to 60 cm in width and are mineralized with fine grained arsenopyrite and abundant scorodite. Peak values, from selected samples collected within a roughly 500 by 300 m area immediately west of the trenches, were 14 387.5 ppb Au, 9.11 oz/t Ag, >99 999 ppm As, 51 407.18 ppm Cu, 2 313.81 ppm Sb and 4 311.98 ppm Bi.
References
GEOLOGICAL SURVEY OF CANADA, 1998. Airborne geophysical survey (NTS 116 B/1, A/4 and 115 P/13), Brewery Creek Area, Yukon Territory. Open Files 3551 and 3607.
GORDEY, S.P. AND MAKEPEACE, A.J., 1999. Yukon Digital Geology, S.P. Gordey and A.J. Makepeace (comp.); Geological Survey of Canada, Open File D3826, and Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 1999-1(D).
INTERNATIONAL KODIAK RESOURCES INC, Jan/98. Assessment Report #093768 by V.P. Van Damme, B.T. Malahoff and C.A. Kauss.
INTERNATIONAL KODIAK RESOURCES INC, Feb/99. Assessment Report #093961 by V.P. Van Damme and B.D. Game.
INTERNATIONAL KODIAK RESOURCES INC, Feb/99. Assessment Report #093967 by V.P. Van Damme and B.D. Game.
INTERNATIONAL KODIAK RESOURCES INC, Apr/2000. Assessment Report #094118 by B.J. Jaworski and M.T. Vanwermeskerken.
YUKON EXPLORATION AND GEOLOGY 1997, p. 27, 36; 1999, p. 9.
Staked by Noranda Exploration Company Ltd as Cub cl 1-174 (YB38943) in Oct/90, which carried out prospecting, geological mapping, geophysical and geochemical surveying and trenching in 1991.
Restaked within a large block of Ob claims (approximately 370) in Nov/96, by a private company Core Exploration Ltd. The company staked a large block of Wow claims to the north and east at the same time. In Dec/96 International Kokiak Resources Inc, another private company, optioned these claims and a large block of over 2 500 adjoining claims collectively known as the Oki-Doki project from Core Exploration.
In the summer and fall of 1997 International Kodiak carried out a regional program of geochemical stream sediment sampling of secondary drainages, soil sampling of drainage divides, prospecting, geological mapping and airborne geophysical surveying (in conjuction with the Geological Survey of Canada). The company carried out geochemical sampling, geological mapping, prospecting and hand trenching in the immdediate area of the occurrence in 1998 and 1999.
Capsule Geology
The Bear Mountain (later called Cirque Lake) showing consists of a 0.6 x 75 m vein of arsenopyrite, chalcopyrite and scheelite which cuts hornfelsed calcareous siltstone of the Ordovician to Lower Devonian aged Road River assemblage at the margin of a mid-Cretaceous monzonite stock. A specimen of massive arsenopyrite assayed 10 g/t Au. Kubota trenching showed that the vein follows a narrow east-west shear which is locally discordant to compositional banding in the hornfels. The hydrothermally altered hanging wall of the vein consists of 32 cm of white clay with grey patches of arsenopyrite. The footwall consists of up to 1 m of bleached, silicified hornfels underlain by another metre of yellow clay gouge.
Arsenopyrite float is also associated a with recessive linear zones of vuggy, orange-weathering banded carbonate breccia cutting the stock. These breccia zones are subvertical, up to 10 m wide and also strike east-west, parallel to a dominant set of cooling joints in the intrusion. Similar east-west veins have been explored on Antimony Mountain to the northwest (Minfile Occurrence #116B 094), and on the Rimrock (Lorrie) property to the northeast (Minfile Occurrence #116A 013).
International Kodiak identified an Au, As, Sb, Hg, Bi geochemical signature defining a source area greater than 5 sq km surrounding the occurrence, as well as several radiometric anomalies associated with the intrusive stock. Sampling revealed high As levels throughout the area and elevated gold values from feldspar-quartz porphyry and massive arsenopyrite veining (540 and 4 000 ppb, respectively).
Kodiak¿s work in 1998 and 1999 focused on Noranda¿s old trenches (Bear Mountain showing) and the numerous east-west, subparallel linear structures trending west away from the trenched area, that they called Area 1 and subsquently Cirque Lake. Continuous rock chip sampling from around the showing returned an average value of 340 ppb Au over 40 m. Sampling of mineralized quartz veins within and adjacent to the lineaments to the west returned high values for base and precious metal as well as bismuth and antimony. The quartz veins, similar to those in the trenched area, are up to 60 cm in width and are mineralized with fine grained arsenopyrite and abundant scorodite. Peak values, from selected samples collected within a roughly 500 by 300 m area immediately west of the trenches, were 14 387.5 ppb Au, 9.11 oz/t Ag, >99 999 ppm As, 51 407.18 ppm Cu, 2 313.81 ppm Sb and 4 311.98 ppm Bi.
References
GEOLOGICAL SURVEY OF CANADA, 1998. Airborne geophysical survey (NTS 116 B/1, A/4 and 115 P/13), Brewery Creek Area, Yukon Territory. Open Files 3551 and 3607.
GORDEY, S.P. AND MAKEPEACE, A.J., 1999. Yukon Digital Geology, S.P. Gordey and A.J. Makepeace (comp.); Geological Survey of Canada, Open File D3826, and Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 1999-1(D).
INTERNATIONAL KODIAK RESOURCES INC, Jan/98. Assessment Report #093768 by V.P. Van Damme, B.T. Malahoff and C.A. Kauss.
INTERNATIONAL KODIAK RESOURCES INC, Feb/99. Assessment Report #093961 by V.P. Van Damme and B.D. Game.
INTERNATIONAL KODIAK RESOURCES INC, Feb/99. Assessment Report #093967 by V.P. Van Damme and B.D. Game.
INTERNATIONAL KODIAK RESOURCES INC, Apr/2000. Assessment Report #094118 by B.J. Jaworski and M.T. Vanwermeskerken.
YUKON EXPLORATION AND GEOLOGY 1997, p. 27, 36; 1999, p. 9.
Location Map
Last Updated: Jul 11, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1998 | Geochemistry: Soil | Work followed up results from previous year. |
| 1998 | Other: Prospecting | |
| 1998 | Trenching | Work followed up results from previous year. |
| 1997 | Studies: Geotechnical | |
| 1991 | Geochemistry: Soil | |
| 1991 | Geology: Bedrock Mapping | |
| 1991 | Ground Geophysics | |
| 1991 | Other: Prospecting | |
| 1991 | Trenching: Mechanical | Dug by helicopter portable Kubota. |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia
Regional Geology - Bedrock
Supergroup:
Group/Suite:
Formation: Rabbitkettle
Member:
Terrane: Laurentia
Period Max: Cambrian
Age Max: 500 MA
Period Min: Ordovician
Age Min: 472 MA
Rock Major: chert/siltstone/phyllite/limestone/conglo
Rock Minor: flow/breccia/tuff/slate
Reference: Murphy (1997, unpub.) - geological interpretation of Larsen Creek geophysical survey
Geological Unit (1M): COR
Geological Unit (250K): COR1
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 096411 | 2013 | Airborne Geophysical Interpretation of the Mike Lake Property | Electromagnetic - Airborne Geophysics, Electromagnetic - Airborne Geophysics, Gamma-Ray Spectrometry - Airborne Geophysics, Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics, Magnetic - Airborne Geophysics | ||
| 095119 | 2008 | Assessment Report Describing Geology, Mineralization and Diamond Drilling at the Mike Lake Property | Diamond - Drilling, Detailed Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Resistivity - Ground Geophysics, Prospecting - Other, Environmental Assessment/Impact - Studies | 68 | 10004 |
| 095029 | 2007 | Assessment Report Describing the Geology, Mineralization and Diamond Drilling of the Mike Lake Property | Diamond - Drilling, Bedrock Mapping - Geology, Prospecting - Other | 9 | 1822 |
| 094574 | 2004 | Assessment Report Describing the Geology, Geochemistry and Prospecting at the Mike Lake Property | Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other, Data Compilation - Pre-existing Data | ||
| 094510 | 2004 | Assessment Report Describing the Geology, Geochemistry and Prospecting at the Mike Lake Property | Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | ||
| 094221 | 2000 | Geological and Geochemical Report on the Oki-Doki Claims | Rock - Geochemistry, Soil - Geochemistry, Regional Bedrock Mapping - Geology, Mechanical - Trenching | ||
| 093961 | 1998 | Geological, Geochemical and Geophysical Report on the Oki-Doki Project Claims | Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, IP - Ground Geophysics, Magnetics - Ground Geophysics, Prospecting - Other | ||
| 093922 | 1998 | Assessment Report 1998 Geolgoical, Geochemical and Geophysical Program Mike Lake Property | Magnetic - Airborne Geophysics, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, IP - Ground Geophysics, Handblast - Trenching | ||
| 093967 | 1998 | Geological, Geochemical and Geophysical Report on the Oki-Doki Project Claims | Silt - Geochemistry, Soil - Geochemistry, IP - Ground Geophysics, Magnetics - Ground Geophysics | ||
| 093768 | 1997 | Geological, Geophysical and Geochemical Assessment Report on the Oki-Doki Project Claims | Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Regional Bedrock Mapping - Geology, Prospecting - Other, Process/Interpret - Pre-existing Data | ||
| 092912 | 1990 | Report on the 1990 Geological and Geochemical Exploration Work on the Lorrie Property | Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Prospecting - Other |
