General Information
Secondary Commodities: gold, silver, tellurium, mercury, tungsten, arsenic
Aliases: Hudbay, Southeast, Northwest
Deposit Type(s): Orogenic Au
Location(s): 63.486990 N, -139.617380 W
NTS Mapsheet(s): 115O05
Location Comments: Occurrence location marks location of trench ROTH12-02.
Hand Samples Available at YGS: No
Capsule
WORK HISTORY
S. Ryan staked Rose cl 1-28 (YC87106) to the northeast in May/2009 and Bute claims 1-62 (YC87401) to the east in June/2009. The Bute claims located on the northeast side of the Rosebute property are covered by a separate Minfile Occurrence (115O 167).
Restaked within Rose cl 37-120 (YD96040) in Feb/2010 by Ryan, who packaged the claims together to create the Rosebute property. In Mar/2010 Ryan optioned the Bute and Rose claims to Taku Gold Corp in return for cash, shares and certain work commitments. Shortly thereafter Taku Gold added Rose cl 121-412 (YD43401) to the existing property.
In Sep/2010 Taku Gold flew an airborne magnetic and radiometric survey over the entire existing property and carried out a deep auger soil sampling program over the northwest and north central portions of the Rose claims.
In Mar/2011 Taku Gold staked RS cl 1-72 (YD15751) on the northwest side of the property. In Jul/2011 the company carried out a reconnaissance, ridge and spur, deep auger soil sampling program over the entire property including the Bute and RS claims. The company also carried out follow-up deep auger soil sampling on the Northwest grid to better define anomalies detected during the 2010 sampling program.
In early Aug/2012 Taku Gold staked RS cl 73-112 (YE26103) to the west and in Oct/2012 staked RS cl 115-222 (YE74725) to the west-southwest.
During the 2012 field season Taku Gold dug two trenches and collared 4 diamond drill holes (963.0 m) on the Northwest zone. The company also grid soil sampled southwest of the Northwest zone which later became the Hudbay and Southeast zones and prospected and rock sampled all three zones. Seven trenches were dug over various targets located within the Hudbay zone and a preliminary ground resistivity and Induced Polarization (IP) surveys was run on the Hudbay zone.
In 2013 Taku Gold carried out high definition ground resistivity and induced polarization geophysical surveys on the Hudbay and Southeast zones. The company collected 141 rock samples at 5 m intervals on 7 Geoprobe lines which were located over various geophysical anomalies detected within the Hudbay zone.
In Apr/2014 Taku Gold announced that they had met all the conditions set out in their option agreement with S. Ryan and thus had acquired a 100 % interest in the Rosebute property.
In May/2016 Taku Gold offered a 75 % interest in the Rosebute property to Independence Gold Corp in return for cash, shares and certain work commitments. During the exploration season Independence Gold collared 12 Rotary Air Blast (RAB) drill holes (923.5 m) on the Hudbay zone. In Mar/2017 Independence Gold terminated its option agreement with Taku Gold.
In 2017 Taku Gold plans to carry out further work to evaluate the Hudbay and Southeast zones.
GEOLOGY
The Rosebute property is located approximately 20 km southwest of Henderson Dome and roughly 5 km east of the Yukon River. Access is currently by helicopter however supplies can be barged down the Yukon River and slung in by helicopter. The area was mapped at 1:100 000 scale in the early 2000’s by Ryan and Gordey (2004) of the Geological Survey of Canada. A larger scale (1:250 000) compilation containing revised nomenclature was released in 2005 by Gordey and Ryan.
According to Gordey and Ryan the majority of the Rosebute property is underlain by undivided Devonian to Mississippian orthogneiss (unit DMogg), consisting of pink to orange potassium feldspar rich, granitic orthogneiss. The west side of the property is underlain by unit DMogt, a Devonian to Mississippian, mainly tonalitic or intermediate to mafic orthogneiss. A thin slice of Devonian to Mississippian amphibolite (unit DMa), outcrops in the southeast corner of the property. Several small mid (?) –Cretaceous granitic intrusions (unit Kg) intrude the sequence.
Exploration on the Rosebute property is hampered by deep overburden and the lack of visible outcrop (estimated at 5 %). Taku Gold has relied on deep auger soil sampling to outline exploration targets for follow-up exploration and drilling. To date the company has outlined 3 main exploration zones, Northwest, Hudbay and Northeast. The Northwest zone is the first zone discovered by the company. Host rock in the zone is dominated by a layered orthogneiss with intervals of muscovite schist. The zone is comprised of 3 smaller separate gold anomalies located in the southeast corner of the Northwest grid (located on topographic map sheet 115O 12). The first anomaly (UTM 570282 E, 7043134 N – diamond drill hole RO-12-1) is located approximately 250 m north of Rosebute Creek near the southeast boundary of the Northwest grid. It trends approximately 500 m long in an east-west direction and returned gold values of up to 1 343 ppb gold (1.3 g/t). Drill hole RO-12-01 tested the best gold soil value and returned 0.95 g/t gold over 23.4 m.
The second gold anomaly is located approximately 1.5 km to the north (UTM 570909 E, 7044086 N - diamond drill hole RO-12-3) and represents an east trending anomaly measuring approximately 900 m in length that returned values up to 212 ppb gold (0.2 g/t). Drill hole RO-12-03 did not intersect any notable gold-bearing intervals. The third gold anomaly (UTM 570267E, 7044463 N – diamond drill hole RO-12-4) lies about 1 km northeast of the first anomaly, is well defined over an east trending length of 450 m and returned values up to 254 ppb gold. It lies along an east to west trend with anomaly #2 and may in fact identify one gold-bearing zone. Diamond drill hole RO-12-04 intersected 0.88 g/t gold over 3.0 m. A strong arsenic in soil anomaly lies approximately 1.2 km northwest of anomaly 1. Diamond drill hole RO-12-02 which tested the anomaly returned 1.58 g/t gold over 1.0 m.
Reconnaissance ridge and spur soil sampling completed in 2011 identified a small cluster of anomalous gold results with maximum values up to 0.5 g/t gold approximately 2.4 km southwest of the Northwest zone. Follow-up grid sampling carried out in 2012 outlined a very strong gold-in-soil anomaly trending northwest over a length of at least 1 000 m. The newly named Hudbay zone (Occurrence Location- UTM 568860 E, 7040594 N –trench ROTH12-02), varies from 150 to 350 m wide and returned a maximum value of 0.9 g/t gold. The southern end of the zone is especially strong with most samples returning greater than 60 ppb gold within an area measuring 500 m long by 350 m wide.
Portable excavator trenching conducted in 2012 over the southern end of the Hudbay zone identified a number of parallel, north-trending gold zones. Host rock in the trenches is predominantly a granitic, layered orthogneiss with occasional schist and quartzite zones. Mineralization consists of quartz veins and stockwork and intervals of disseminated pyrite. The best results of the program returned 6.17 g/t gold over 5 m from 35.0 m in trench ROTH12-02 and 1.5 g/t gold over 20.0 m from 130.0 n in trench ROTH12-04. Geoprobe sampling completed in 2013 returned highly anomalous results from all seven lines sampled with the best result returning 4.3 g/t gold. The sampling identified a linear, north-trending gold-bearing structure that varies from 10 to 30 m wide and confirms the gold bearing zone outlined by previous soil geochemistry and trenching. Gold has a very strong correlation between silver, tellurium and mercury and to a lesser degree tungsten and arsenic.
Independence Gold tested the Hudbay zone with 12 rotary air blast holes (923.5 m) in 2016 as part of their option agreement. The holes intersected multiple zones of low-grade gold mineralization e.g., RO 16-15 returned 0.5 g/t gold over 36.6 m, 0.31 g/t gold over 38.1 m and 0.15 g/t gold over 91.4 m starting at 12 m depth. The higher gold values are spatially associated with increased concentrations of massive sulphide-quartz poor veins.
Detailed grid soil sampling completed in 2012 also identified a second anomalous gold-in-soil anomaly approximately 750 m southeast of the Hudbay zone. The Southeast zone (UTM 569635 E, 7040000 N - approximate center of zone) trends northwest over a length of 650 m and varies in width from 50 to 250 m. Sampling in 2012 returned gold values up to 96 ppb gold and although smaller in size and lower in gold values it remains an interesting target.
At the time of publication no results have been released regarding Taku Gold’s 2017 exploration program.
S. Ryan staked Rose cl 1-28 (YC87106) to the northeast in May/2009 and Bute claims 1-62 (YC87401) to the east in June/2009. The Bute claims located on the northeast side of the Rosebute property are covered by a separate Minfile Occurrence (115O 167).
Restaked within Rose cl 37-120 (YD96040) in Feb/2010 by Ryan, who packaged the claims together to create the Rosebute property. In Mar/2010 Ryan optioned the Bute and Rose claims to Taku Gold Corp in return for cash, shares and certain work commitments. Shortly thereafter Taku Gold added Rose cl 121-412 (YD43401) to the existing property.
In Sep/2010 Taku Gold flew an airborne magnetic and radiometric survey over the entire existing property and carried out a deep auger soil sampling program over the northwest and north central portions of the Rose claims.
In Mar/2011 Taku Gold staked RS cl 1-72 (YD15751) on the northwest side of the property. In Jul/2011 the company carried out a reconnaissance, ridge and spur, deep auger soil sampling program over the entire property including the Bute and RS claims. The company also carried out follow-up deep auger soil sampling on the Northwest grid to better define anomalies detected during the 2010 sampling program.
In early Aug/2012 Taku Gold staked RS cl 73-112 (YE26103) to the west and in Oct/2012 staked RS cl 115-222 (YE74725) to the west-southwest.
During the 2012 field season Taku Gold dug two trenches and collared 4 diamond drill holes (963.0 m) on the Northwest zone. The company also grid soil sampled southwest of the Northwest zone which later became the Hudbay and Southeast zones and prospected and rock sampled all three zones. Seven trenches were dug over various targets located within the Hudbay zone and a preliminary ground resistivity and Induced Polarization (IP) surveys was run on the Hudbay zone.
In 2013 Taku Gold carried out high definition ground resistivity and induced polarization geophysical surveys on the Hudbay and Southeast zones. The company collected 141 rock samples at 5 m intervals on 7 Geoprobe lines which were located over various geophysical anomalies detected within the Hudbay zone.
In Apr/2014 Taku Gold announced that they had met all the conditions set out in their option agreement with S. Ryan and thus had acquired a 100 % interest in the Rosebute property.
In May/2016 Taku Gold offered a 75 % interest in the Rosebute property to Independence Gold Corp in return for cash, shares and certain work commitments. During the exploration season Independence Gold collared 12 Rotary Air Blast (RAB) drill holes (923.5 m) on the Hudbay zone. In Mar/2017 Independence Gold terminated its option agreement with Taku Gold.
In 2017 Taku Gold plans to carry out further work to evaluate the Hudbay and Southeast zones.
GEOLOGY
The Rosebute property is located approximately 20 km southwest of Henderson Dome and roughly 5 km east of the Yukon River. Access is currently by helicopter however supplies can be barged down the Yukon River and slung in by helicopter. The area was mapped at 1:100 000 scale in the early 2000’s by Ryan and Gordey (2004) of the Geological Survey of Canada. A larger scale (1:250 000) compilation containing revised nomenclature was released in 2005 by Gordey and Ryan.
According to Gordey and Ryan the majority of the Rosebute property is underlain by undivided Devonian to Mississippian orthogneiss (unit DMogg), consisting of pink to orange potassium feldspar rich, granitic orthogneiss. The west side of the property is underlain by unit DMogt, a Devonian to Mississippian, mainly tonalitic or intermediate to mafic orthogneiss. A thin slice of Devonian to Mississippian amphibolite (unit DMa), outcrops in the southeast corner of the property. Several small mid (?) –Cretaceous granitic intrusions (unit Kg) intrude the sequence.
Exploration on the Rosebute property is hampered by deep overburden and the lack of visible outcrop (estimated at 5 %). Taku Gold has relied on deep auger soil sampling to outline exploration targets for follow-up exploration and drilling. To date the company has outlined 3 main exploration zones, Northwest, Hudbay and Northeast. The Northwest zone is the first zone discovered by the company. Host rock in the zone is dominated by a layered orthogneiss with intervals of muscovite schist. The zone is comprised of 3 smaller separate gold anomalies located in the southeast corner of the Northwest grid (located on topographic map sheet 115O 12). The first anomaly (UTM 570282 E, 7043134 N – diamond drill hole RO-12-1) is located approximately 250 m north of Rosebute Creek near the southeast boundary of the Northwest grid. It trends approximately 500 m long in an east-west direction and returned gold values of up to 1 343 ppb gold (1.3 g/t). Drill hole RO-12-01 tested the best gold soil value and returned 0.95 g/t gold over 23.4 m.
The second gold anomaly is located approximately 1.5 km to the north (UTM 570909 E, 7044086 N - diamond drill hole RO-12-3) and represents an east trending anomaly measuring approximately 900 m in length that returned values up to 212 ppb gold (0.2 g/t). Drill hole RO-12-03 did not intersect any notable gold-bearing intervals. The third gold anomaly (UTM 570267E, 7044463 N – diamond drill hole RO-12-4) lies about 1 km northeast of the first anomaly, is well defined over an east trending length of 450 m and returned values up to 254 ppb gold. It lies along an east to west trend with anomaly #2 and may in fact identify one gold-bearing zone. Diamond drill hole RO-12-04 intersected 0.88 g/t gold over 3.0 m. A strong arsenic in soil anomaly lies approximately 1.2 km northwest of anomaly 1. Diamond drill hole RO-12-02 which tested the anomaly returned 1.58 g/t gold over 1.0 m.
Reconnaissance ridge and spur soil sampling completed in 2011 identified a small cluster of anomalous gold results with maximum values up to 0.5 g/t gold approximately 2.4 km southwest of the Northwest zone. Follow-up grid sampling carried out in 2012 outlined a very strong gold-in-soil anomaly trending northwest over a length of at least 1 000 m. The newly named Hudbay zone (Occurrence Location- UTM 568860 E, 7040594 N –trench ROTH12-02), varies from 150 to 350 m wide and returned a maximum value of 0.9 g/t gold. The southern end of the zone is especially strong with most samples returning greater than 60 ppb gold within an area measuring 500 m long by 350 m wide.
Portable excavator trenching conducted in 2012 over the southern end of the Hudbay zone identified a number of parallel, north-trending gold zones. Host rock in the trenches is predominantly a granitic, layered orthogneiss with occasional schist and quartzite zones. Mineralization consists of quartz veins and stockwork and intervals of disseminated pyrite. The best results of the program returned 6.17 g/t gold over 5 m from 35.0 m in trench ROTH12-02 and 1.5 g/t gold over 20.0 m from 130.0 n in trench ROTH12-04. Geoprobe sampling completed in 2013 returned highly anomalous results from all seven lines sampled with the best result returning 4.3 g/t gold. The sampling identified a linear, north-trending gold-bearing structure that varies from 10 to 30 m wide and confirms the gold bearing zone outlined by previous soil geochemistry and trenching. Gold has a very strong correlation between silver, tellurium and mercury and to a lesser degree tungsten and arsenic.
Independence Gold tested the Hudbay zone with 12 rotary air blast holes (923.5 m) in 2016 as part of their option agreement. The holes intersected multiple zones of low-grade gold mineralization e.g., RO 16-15 returned 0.5 g/t gold over 36.6 m, 0.31 g/t gold over 38.1 m and 0.15 g/t gold over 91.4 m starting at 12 m depth. The higher gold values are spatially associated with increased concentrations of massive sulphide-quartz poor veins.
Detailed grid soil sampling completed in 2012 also identified a second anomalous gold-in-soil anomaly approximately 750 m southeast of the Hudbay zone. The Southeast zone (UTM 569635 E, 7040000 N - approximate center of zone) trends northwest over a length of 650 m and varies in width from 50 to 250 m. Sampling in 2012 returned gold values up to 96 ppb gold and although smaller in size and lower in gold values it remains an interesting target.
At the time of publication no results have been released regarding Taku Gold’s 2017 exploration program.
Location Map
Last Updated: Dec 14, 2017
Work History
| Year | Work Type | Comment |
|---|---|---|
| 2016 | Drilling: RAB (Rotary Air Blast) | Twelve holes (923.5 m) collared on Hudbay zone. |
| 2013 | Geochemistry: Rock | Collected 141 rock samples from 7 Geoprobe lines located over various geophysical anomalies. |
| 2013 | Ground Geophysics: IP | Also resistivity surveys run over Hudbay and Southeast zones. |
| 2012 | Drilling: Diamond | Four holes (963 m) collared on Northwest zone. |
| 2012 | Geochemistry: Soil | Grid soil sampled Hudbay and Southeast zones. |
| 2012 | Ground Geophysics: Resistivity | Also Induced Polarization survey run over Hudbay zone. |
| 2012 | Trenching: Mechanical | Used portable Can-Dig excavator. |
| 2011 | Geochemistry: Soil | Deep auger sampling on grid and ridge and spur sampling. |
| 2010 | Airborne Geophysics: Magnetic | Also radiometric survey, over entire property. |
| 2010 | Geochemistry: Soil | Deep auger sampling. |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Simpson Range
Formation:
Member:
Terrane: Yukon-Tanana
Period Max: Carboniferous
Age Max: 355 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: tonalite/interm. to mafic orthogneiss
Rock Minor:
Reference: Gordey & Ryan (2005) - GSC OF 4970
Geological Unit (1M): MSR
Geological Unit (250K): MgSR
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 097067 | 2016 | 2016 Exploration Program on the Rosebute Project, Yukon | RAB (Rotary Air Blast) - Drilling, Rock - Geochemistry, Magnetics - Ground Geophysics | 12 | 923.50 |
| 096703 | 2013 | Memorandum Report, 2013 Surface Work, Rosebute Property | Rock - Geochemistry, Rock - Geochemistry, IP - Ground Geophysics, IP - Ground Geophysics, Resistivity - Ground Geophysics, Resistivity - Ground Geophysics | ||
| 096409 | 2012 | 2012 Drilling and Surface Work, Rosebute Property | Diamond - Drilling, Diamond - Drilling, Drill Core - Geochemistry, Drill Core - Geochemistry, Rock - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Soil - Geochemistry, IP - Ground Geophysics, IP - Ground Geophysics, Resistivity - Ground Geophysics, Resistivity - Ground Geophysics, Prospecting - Other, Prospecting - Other, Backhoe - Trenching, Backhoe - Trenching | 8 | 1926 |
| 096005 | 2011 | 2011 Soil Geochemical Survey on the Rosebute Property | Soil - Geochemistry, Soil - Geochemistry | ||
| 095965 | 2010 | 2010 Surface Work on the Rosebute Property | Gamma-Ray Spectrometry - Airborne Geophysics, Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Soil - Geochemistry, Soil - Geochemistry |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| YEG2010_OV | Yukon Exploration and Geology Overview 2010 | p. 30, 61. | Annual Report |
| YEG2011_OV | Yukon Exploration and Geology Overview 2011 | p. 48, 67. | Annual Report |
| YEG2012_OV | Yukon Exploration and Geology Overview 2012 | 50, 63, 65. | Annual Report |
| YEG2016_OV4 | Yukon Hardrock Mining, Development and Exploration Overview 2016 | p. 49, 56, 59. | Annual Report Paper |
| Citations |
|---|
| GORDEY, S.P. AND RYAN, J.J., 2005. Geology, Stewart River Area (115N, 115 O and part of 115J), Yukon Territory; Geological Survey of Canada, Open File 4970, scale 1:250 000. |
| RYAN, J.J. AND GORDEY, S.P. 2002. Bedrock geology of Yukon-Tanana terrane in southern Stewart River map area, Yukon Territory. Geological Survey of Canada, Current Research 2002-A1, 11 p. |
| RYAN, J.J. ET AL., 2003. Update on bedrock geological mapping of the Yukon-Tanana terrane, southern Stewart River map area, Yukon Territory. Geological Survey of Canada. Current Research 2003-A9, 7 p. |
| SHIVES, R.B.K. ET AL., 2001. Airborne Multisensor Geophysical Survey, Stewart River Area, Yukon. Phase 1 Portable Document Format (PDF) Files. Geological Survey of Canada Open File D4009. Also Exploration and Geological Services Division (EGSD) Open File 2001-30. |
| TAKU GOLD CORP, Apr/2012. Assessment Report #096005 by M. Fekete and M. Huber. |
| TAKU GOLD CORP, Apr/2014. Assessment Report #096703 by M. Fekete and M. Huber. |
| TAKU GOLD CORP, Jan/2012. Assessment Report #095965 by M. Fekete and M. Huber. |
| TAKU GOLD CORP, Mar/2013. Assessment Report #096409 by M. Fekete and M. Huber. |
| TAKU GOLD CORP. Jul/2017. Web Site: www.takugold.com. |
| TAKU GOLD CORP. News Release. 30 Mar/2010, 12 Apr/2010, 16 Aug/2010, 21 Oct/2010, 22 Dec/2010, 19 Apr/2011, 13 Sep/2011, 6 Feb/2012, 22 Aug/2012, 12 Sep/2012, 11 Oct/2012, 9 Apr/2014,17 May/2016, 6 Jul/2016, 21 Jul/2016, 22 Aug/2016, 27 Oct/2016, 1 Mar/2017. |
