General Information
Primary Commodities: gold
Deposit Type(s): Vein Au-Quartz
Location(s): 63.8872 N, -139.224740 W
NTS Mapsheet(s): 115O14
Location Comments: Coordinates provided by Klondike Gold Corp. in 2019.
Hand Samples Available at YGS: No
Capsule
Work History
A surge of lode gold interest in the area in 1908 to 1911 tied the Helena (10787) and Helena Fr (11982) to the west side of Pioneer (MINFILE occurrence 115O 150) by W.D. McKay and F.B. Kennedy. A 150 m adit was driven on the Pioneer claim between November, 1903 and October, 1910. In 1912, a shaft 23 m deep with a 3 m crosscut at the bottom was sunk on the Helena cl. The Helena MINFILE showing corresponds to this historical shaft.
The area was re-staked in 1979 as the ND and DE cl by Klondike Ken Ventures Inc., which did a minor amount of bulldozer trenching near the old Pioneer workings. The property was acquired in 1980 by Dawson Eldorado Gold Explorations, which carried out geological mapping and geochemical sampling from 1983 to 1984.
In June of 1986, the property was optioned to Arbor Resources Inc. Arbor completed magnetic and VLF-EM surveys in 1986 and airborne magnetics, EM and IP surveys in 1987.
Kennecott Canada Inc. optioned the property in August of 1992. Kennecott did no significant work on the claims surrounding the Helena shaft and in January of 1995 terminated the option agreement. In January of 1996, Arbor Resources Inc. changed its name to Klondike Gold Corp. Klondike Gold Corp. optioned a 50% interest to Klondike Star Mineral Corp. (KSMC), which became a 50/50 joint venture in 2005. Klondike Star Mineral Corp held a 55% interest in the claims in 2005.
Klondike Gold Corp. resumed work in 2011 and purchased Klondike Star Mineral Corp. in 2015 to restore a 100% interest. In 2012, Klondike Gold Corp. contracted AECOM Consulting to perform regional surficial terrain mapping over the entire Lone Star property, including the area surrounding the Helena shaft. Klondike Gold Corp. performed ground magnetics and orthophoto surveys in 2015 and an airborne magnetics survey, as well as detailed regional and structural mapping using SRK Consulting Inc. in 2018 over the entire Lone Star property, including the area surrounding the Helena shaft.
Regional & Property Geology
The Helena shaft, similar to the nearby Pioneer prospect (MINFILE occurrence 1150 150), is located within the Klondike region, which is underlain by the Permian Klondike Schist Assemblage of the Yukon-Tanana terrane (YTT). The Klondike Schist represents a transition from plutonism to arc volcanism that has undergone greenschist facies metamorphism and consists of metaplutonic Sulphur Creek orthogneiss in the west that transitions eastward to a package of metavolcanics and metasedimentary units including: felsic to mafic (quartz-mica +/- chlorite) schist, graphitic schist, and quartz augen schist (PKf and PKs). Evidence of five deformation events (D1 to D5) are present in within the Klondike Schist Assemblage as a result of obduction and regional thrusting and faulting related to uplift, which have produced a visible S2 and S3 foliation fabric in the schist units.
The lithological units of the Klondike region commonly contain both large, foliaform quartz veins associated with D3 folding and thrusting and discordant quartz veins possibly associated with D4 brittle faulting. Mineralization is generally hosted in the discordant quartz veins, however, the exact mineralization age and timing in the Klondike region is currently unknown. A structural mapping program completed by SRK Consulting Inc. in 2018 on the Klondike claims in the Lone Star property area identified a newly defined “D4” fault system interpreted to be the primary conduit for gold mineralization fluids that suggests a younger mineralization age than previously assumed. The white to locally oxidized, discordant veins are generally mineralized with sulphides (pyrite, rare galena, chalcopyrite), as well as visible gold, and are rarely more than 2-3 metres thick. Where present, visible gold is commonly noted along the selvages of both fresh and oxidized pyrite grains and can also occur as free grains within the quartz veins.
A surge of lode gold interest in the area in 1908 to 1911 tied the Helena (10787) and Helena Fr (11982) to the west side of Pioneer (MINFILE occurrence 115O 150) by W.D. McKay and F.B. Kennedy. A 150 m adit was driven on the Pioneer claim between November, 1903 and October, 1910. In 1912, a shaft 23 m deep with a 3 m crosscut at the bottom was sunk on the Helena cl. The Helena MINFILE showing corresponds to this historical shaft.
The area was re-staked in 1979 as the ND and DE cl by Klondike Ken Ventures Inc., which did a minor amount of bulldozer trenching near the old Pioneer workings. The property was acquired in 1980 by Dawson Eldorado Gold Explorations, which carried out geological mapping and geochemical sampling from 1983 to 1984.
In June of 1986, the property was optioned to Arbor Resources Inc. Arbor completed magnetic and VLF-EM surveys in 1986 and airborne magnetics, EM and IP surveys in 1987.
Kennecott Canada Inc. optioned the property in August of 1992. Kennecott did no significant work on the claims surrounding the Helena shaft and in January of 1995 terminated the option agreement. In January of 1996, Arbor Resources Inc. changed its name to Klondike Gold Corp. Klondike Gold Corp. optioned a 50% interest to Klondike Star Mineral Corp. (KSMC), which became a 50/50 joint venture in 2005. Klondike Star Mineral Corp held a 55% interest in the claims in 2005.
Klondike Gold Corp. resumed work in 2011 and purchased Klondike Star Mineral Corp. in 2015 to restore a 100% interest. In 2012, Klondike Gold Corp. contracted AECOM Consulting to perform regional surficial terrain mapping over the entire Lone Star property, including the area surrounding the Helena shaft. Klondike Gold Corp. performed ground magnetics and orthophoto surveys in 2015 and an airborne magnetics survey, as well as detailed regional and structural mapping using SRK Consulting Inc. in 2018 over the entire Lone Star property, including the area surrounding the Helena shaft.
Regional & Property Geology
The Helena shaft, similar to the nearby Pioneer prospect (MINFILE occurrence 1150 150), is located within the Klondike region, which is underlain by the Permian Klondike Schist Assemblage of the Yukon-Tanana terrane (YTT). The Klondike Schist represents a transition from plutonism to arc volcanism that has undergone greenschist facies metamorphism and consists of metaplutonic Sulphur Creek orthogneiss in the west that transitions eastward to a package of metavolcanics and metasedimentary units including: felsic to mafic (quartz-mica +/- chlorite) schist, graphitic schist, and quartz augen schist (PKf and PKs). Evidence of five deformation events (D1 to D5) are present in within the Klondike Schist Assemblage as a result of obduction and regional thrusting and faulting related to uplift, which have produced a visible S2 and S3 foliation fabric in the schist units.
The lithological units of the Klondike region commonly contain both large, foliaform quartz veins associated with D3 folding and thrusting and discordant quartz veins possibly associated with D4 brittle faulting. Mineralization is generally hosted in the discordant quartz veins, however, the exact mineralization age and timing in the Klondike region is currently unknown. A structural mapping program completed by SRK Consulting Inc. in 2018 on the Klondike claims in the Lone Star property area identified a newly defined “D4” fault system interpreted to be the primary conduit for gold mineralization fluids that suggests a younger mineralization age than previously assumed. The white to locally oxidized, discordant veins are generally mineralized with sulphides (pyrite, rare galena, chalcopyrite), as well as visible gold, and are rarely more than 2-3 metres thick. Where present, visible gold is commonly noted along the selvages of both fresh and oxidized pyrite grains and can also occur as free grains within the quartz veins.
Location Map
Last Updated: Jul 15, 2022
Work History
| Year | Work Type | Comment |
|---|---|---|
| 2019 | Geochemistry: Soil | |
| 2019 | Remote Sensing: LIDAR | |
| 2018 | Airborne Geophysics: Magnetic | |
| 2018 | Geology: Detailed Bedrock Mapping | Regional detailed structural and lithological mapping. |
| 2015 | Airphotography: Orthophoto | |
| 2015 | Ground Geophysics: Magnetics | |
| 2012 | Geology: Regional Surficial Mapping | |
| 1996 | Trenching: Mechanical | |
| 1987 | Airborne Geophysics: Magnetic | As well as VLF-EM and EM. |
| 1986 | Ground Geophysics: Magnetics | And a ground IP survey. |
| 1984 | Geochemistry: Soil | |
| 1984 | Geology: Regional Bedrock Mapping | |
| 1983 | Geochemistry: Soil | |
| 1983 | Geology: Regional Bedrock Mapping |
Regional Geology - Terrane
Group:
Affinity:
Name:
Realm:
Regional Geology - Bedrock
Supergroup:
Group/Suite:
Formation:
Member:
Terrane:
Period Max:
Age Max: MA
Period Min:
Age Min: MA
Rock Major:
Rock Minor:
Reference:
Geological Unit (1M):
Geological Unit (250K):
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 097066 | 2015 | Report on Diamond Drilling, Prospecting, and Ground Magnetics on the Lone Star Property, Dawson Mining District, Yukon Territory, Canada | Diamond - Drilling, Rock - Geochemistry, Magnetics - Ground Geophysics | 19 | 1369.30 |
| 096398 | 2012 | Diamond Drilling, Trenching, Soil Sampling, Rock Sampling, and Prospecting at the Lone Star Property | All Weather Road - Development, Surface, All Weather Road - Development, Surface, Diamond - Drilling, Diamond - Drilling, Drill Core - Geochemistry, Drill Core - Geochemistry, Rock - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Detailed Bedrock Mapping - Geology, Prospecting - Other, Prospecting - Other, Backhoe - Trenching, Backhoe - Trenching | 8 | 2762.20 |
| 095996 | 2011 | Trenching, Soil Sampling, Assay and Geological Mapping at the Lone Star (Klondike) Property | Rock - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Bedrock Mapping - Geology, Process/Interpret - Pre-existing Data, Process/Interpret - Pre-existing Data, Backhoe - Trenching, Backhoe - Trenching | ||
| 094919 | 2007 | Diamond Drilling, Rotary Drilling, Geological Mapping, Rock and Soil Geochemistry, IP Geophysics, Trenching and Bulk Sampling on the Lone Star Property | Diamond - Drilling, Percussion - Drilling, Drill Core - Geochemistry, Drill Cuttings - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, IP - Ground Geophysics, Bulk Sample - Lab Work/Physical Studies, Petrographic - Lab Work/Physical Studies, Resource Estimate - Studies, Hand - Trenching | 11 | 1314.10 |
| 094638 | 2006 | Diamond Drilling, Geological Mapping, Rock and Soil Geochemistry, IP Geophysics, Trenching and Bulk Sampling on the Lone Star | Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, IP - Ground Geophysics, Bulk Sample - Lab Work/Physical Studies, Resource Estimate - Studies, Mechanical - Trenching | 23 | 2892 |
| 094579 | 2005 | Diamond Drilling, Geological Mapping, Rock and Soil Geochemistry, Trenching and Bulk Sampling on the Lone Star Property | Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Bulk Sample - Lab Work/Physical Studies, Prospecting - Other, Backhoe - Trenching, Mechanical - Trenching | 32 | 5429.40 |
| 094689 | 2004 | Geological Mapping, Rock and Soil Geochemistry, Trenching and Bulk sampling on the Lone Star Property | Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Bulk Sample - Lab Work/Physical Studies, Petrographic - Lab Work/Physical Studies, Prospecting - Other, Data Compilation - Pre-existing Data, Mechanical - Trenching | ||
| 093321 | 1994 | 1994 Annual Report on the Klondike Gold Project | Magnetic - Airborne Geophysics, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Prospecting - Other, Backhoe - Trenching | ||
| 093320 | 1994 | 1994 Annual Report on the Lone Star Project | Diamond - Drilling, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology | 2 | 397.60 |
| 093208 | 1993 | Assessment Report on a 1993 Prospecting, Soil Sampling, Mapping, and Drilling Program | Reverse Circulation - Drilling, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | 1 | 99.10 |
| 093075 | 1992 | Geological, Geochemical and Trenching Report on the Dawson Property | Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Prospecting - Other, Mechanical - Trenching | ||
| 092162 | 1991 | Geological, Geochemical, and Trenching Report on the Lone Star Property | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Backhoe - Trenching | ||
| 092969 | 1990 | Geological and Geochemical Report on the Lone Star Property | Reverse Circulation - Drilling, Drill Cuttings - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, EM - Ground Geophysics, IP - Ground Geophysics, Line Cutting - Other, Data Compilation - Pre-existing Data, Mechanical - Trenching | 45 | 2796 |
| 092860 | 1989 | Geological, Geochemical and Trenching Report on the Dawson Property | Drill Core - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Heavy Mineral Concentrate - Lab Work/Physical Studies, Mechanical - Trenching | ||
| 092691 | 1988 | Geological, Geochemical, Geophysical and Trenching Report on the Dawson Property | Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, EM - Ground Geophysics, IP - Ground Geophysics, Bulk Sample - Lab Work/Physical Studies, Column Leach Test - Lab Work/Physical Studies, Heavy Mineral Concentrate - Lab Work/Physical Studies, Metallurgical Tests - Lab Work/Physical Studies, Petrographic - Lab Work/Physical Studies, Prospecting - Other, Mechanical - Trenching | ||
| 092690 | 1988 | Geological, Geophysical, Geochemical, and Trench Report for Work Performed by Mark Management Ltd. on the REEF Grid | All Weather Road - Development, Surface, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Line Cutting - Other, Mechanical - Trenching | ||
| 091760 | 1987 | Report on Combined Helicopter Borne Electromagnetic, Magnetic, and VLF-EM Survey Bonaza-Eldorado Creek Area | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, VTEM - Airborne Geophysics | ||
| 092132 | 1987 | Geological, Geochemical, Geophysical, Diamond and Rotary Drilling Report on the Lone Star Property | Magnetic - Airborne Geophysics, Diamond - Drilling, Rotary - Drilling, Drill Core - Geochemistry, Drill Cuttings - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, EM - Ground Geophysics, IP - Ground Geophysics, Mechanical - Trenching | 50 | 5753.40 |
| 091750 | 1986 | A Report on Magnetic, Electromagnetic and Induced Polarization Surveys | EM - Ground Geophysics, IP - Ground Geophysics, Magnetics - Ground Geophysics | ||
| 091754 | 1986 | A Report on Magnetic and Induced Polarization Surveying | IP - Ground Geophysics, Magnetics - Ground Geophysics | ||
| 091756 | 1986 | Geological, Geochemical and Diamond and Rotary Drilling Report on the Lone Star Property | Diamond - Drilling, Reverse Circulation - Drilling, Drill Core - Geochemistry, Drill Cuttings - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, EM - Ground Geophysics, IP - Ground Geophysics, Magnetics - Ground Geophysics, Mechanical - Trenching | 52 | 5425.14 |
| 091807 | 1985 | Geological, Geochemical and Geophysical Report for Work performed by Mark Management on the Dawson Property | Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, EM - Ground Geophysics, Magnetics - Ground Geophysics, Heavy Mineral Concentrate - Lab Work/Physical Studies, Petrographic - Lab Work/Physical Studies, Mechanical - Trenching | ||
| 091683 | 1984 | Report of 1984 Exploration on the Lone Star Property of Dawson Eldorado Mines Ltd. | Rehabilitation - Development, Underground, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Regional Bedrock Mapping - Geology, Line Cutting - Other, Surveying - Other | ||
| 091535 | 1983 | Summary Report 1983 Mapping and Interpretation Lone Star Gold Property | Detailed Bedrock Mapping - Geology, Regional Bedrock Mapping - Geology, Process/Interpret - Pre-existing Data | ||
| 091399 | 1981 | Gold Potential Evaluation Report Klondike District on Violet Gold - Quartz Property | Orthophoto - Airphotography, Cursory Property Visit - Other, Data Compilation - Pre-existing Data | ||
| 091064 | 1981 | Summary Report of 1981 Exploration on the Lone Star Ridge Property | Orthophoto - Airphotography, All Weather Road - Development, Surface, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Heavy Mineral Concentrate - Lab Work/Physical Studies, Line Cutting - Other, Prospecting - Other, Surveying - Other, Data Compilation - Pre-existing Data, Hand - Trenching, Mechanical - Trenching | ||
| 060149 | 1972 | Geological and Geochemical Report Yukon Quartz Mineral Claims | Silt - Geochemistry, Soil - Geochemistry |
Related References
| Number | Title | Page(s) | Document Type |
|---|
| Citations |
|---|
| Grimshaw, M, 2018. Gold Mineralisation in the Lone Star area of the Klondike Gold District, Yukon, Canada. PhD thesis, University of Leeds, Institute of Applied Geoscience, School of Earth and Environment. |
| Klondike Gold Corp., Management Discussion & Analysis: 30 Nov/2016 and 30 Nov/2018. |
| Klondike Gold Corp., News Releases: 13 Feb/2019. |
