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Occurrence Details


Occurrence Number
115N 030
Occurrence Name
Independence
Occurrence Type
Hard-rock
Status
Anomaly


General Information

Secondary Commodities: gold, arsenic, antimony
Aliases: Moosehorn
Deposit Type(s): Vein Au-Quartz
Location(s): 63.041650 N, -140.841840 W
NTS Mapsheet(s): 115N02
Location Comments: Location marks approximate center of gold-arsenic soil anomaly.
Hand Samples Available at YGS: No

Capsule

WORK HISTORY

     *Although this property is called the Moosehorn property, this occurrence was named Independence to distinguish it from the Moosehorn occurrence (Minfile Occurrence #115N 024), located approximately 5 km to the northwest

The Moosehorn Range region has seen placer and hardrock exploration since 1970 when high grade gold veins were discovered to the west. Although the area surrounding the occurrence has been staked in the past by various companies, only cursory exploration work in conjunction with larger regional programs was ever carried out (see Minfile Occurrence #115N 024 for past regional exploration work history).
 
Staked as CIT cl 1-24 (YD06167) in June/2009 by ATAC Resources which staked MHN cl 1-34 (YD06191) to the north at the same time. In Dec/2009 ATAC Resources optioned the claims to Silver Quest Resources Ltd for cash and shares.
 
In Jun/2010 Silver Quest carried out a one day regional soil, rock and silt sampling program on the southeast corner of the CIT claims. The company added CIT cl 25-44 (YD13184) in Nov/2010.
 
In Apr/2011 Silver Quest staked MHN cl 35-46 (YE27267) and in Aug/2011 collected 2 additional lines of soil samples.

On October 17, 2011 Silver Quest Resources and New Gold Inc announced a plan of arrangement whereby New Gold would acquire all of the outstanding common shares of Silver Quest, with shareholders of Silver Quest acquiring shares in New Gold. As part of the plan, Silver Quest’s Yukon based properties and other properties held by the company were spun out into a new company, Independence Gold Corp. The plan closed on December 23, 2011 and shares of Independence Gold commenced trading on the Toronto Stock Exchange - Venture Market on December 29, 2011.
 
In 2012 Independence Gold collected grid soil samples from two ridges located on the west side and central area of the CIT claim block. In Nov/2012 the company allowed MHN cl 1-8 (YD06191) which formed a northwest trending spur to expire.
 
In early Jun/2016 Independence Gold carried out follow-up soil sampling over the central area of the CIT claims. Later in the month the company used a Can-Dig excavator to dig 3 trenches over the center of a gold-in soil anomaly located within the area sampled earlier in the month.
 
In 2017 Independence Gold intends to complete a reconnaissance scale soil sampling program across the remainder of the property and to test the known gold-arsenic soil anomaly with a GeoProbe drill. 

GEOLOGY

The occurrence is located in the Moosehorn Mountain range of west-central Yukon, approximately 8 km east of the Yukon-Alaska border and approximately 135 km southwest of Dawson City. There are no regular access roads into the area. Access is generally by helicopter from one of the regional bases in the Yukon or using a fixed wing aircraft from Dawson City to the Moosehorn airstrip located approximately 6 km north of the property. Bulk fuel and heavy equipment is usually brought in by one of the many winter roads servicing the placer industry.
 
The area was remapped by Gordey, S.P. and Ryan, J.J (2005) as a component of the Ancient Pacific Margin NATMAP Project, a mapping  initiative launched by the Geological Survey of Canada, Yukon Geological Survey and the British Columbia Geological Survey Branch. The Stewart River component focused on the Yukon-Tanana terrane, comprising complexly deformed, mostly (?) Paleozoic meta-igneous and metasedimentary rocks.
 
The occurrence area is underlain by quartz-rich metaclastic rocks (quartzite, quartz-mica schist, schist psammite, conglomerate) deposited during the mid-Paleozoic. These rocks were intruded in the mid-Cretaceous by the Dawson Range batholith, which has been assigned to the Whitehorse Suite. Although no detailed mapping has been carried out by Independence Gold, it appears that the property is essentially covered by massive hornblende-biotite granodiorite. The intrusion is cut by numerous younger porphyritic dykes of diorite to granodiorite composition which are thought to belong to the Upper Cretaceous Carmacks Group.  Replacement of hornblende by biotite or chlorite +/- epidote is widespread in the Moosehorn range area.
 
Exploration in the area has historically been focused on gold bearing quartz veins which are genetically unrelated to the Dawson Range batholith. The veins occur in sub-parallel sets generally striking north-northwest, dipping shallowly (20 to 40 degrees) to the east. The veins generally occur to the west where the majority of exploration has been carried out.  Although the occurrence area has previously been staked, the property has only seen cursory exploration carried out as part of larger exploration programs to the west (see Minfile Occurrence #115N 024 for complete history). Independence Gold appears to be the first company to focus their efforts on the east side of the Moosehorn range.
 
The gold veins are dominantly quartz with minor calcite, tourmaline, muscovite and a variety of sulphide minerals including pyrite, galena, arsenopyrite, sphalerite, jamesonite, boulangerite and tetrahedrite. Fluid inclusion studies by Joyce (2002) indicate that the veins formed from an aqueous-carbonic fluid of the H2O-C02-CH4-NaCl +/- N2 system with moderate (~10% NaCl) salinity. It is on the basis of lead isotope work from the same study that it was concluded that the mineralizing fluids of the vein system are genetically unrelated to the Dawson Range batholith or related intrusions within the Yukon-Tanana terrane, and that the granodiorite and related intrusive rocks simply acted as a passive host for mineralization.
 
The 2010 soil sampling program consisted of one contour line of samples collected above an unnamed creek located in the southeast corner of the CIT claim block. The samples were collected to investigate an elevated antimony and arsenic silt sample collected from the creek and reported by the Geological Survey of Canada in its regional stream sediment and water geochemical survey released in 1987 (GSC Open File 1364). The soil survey returned three consecutive samples that returned anomalous gold values from 16 to 29 ppb gold coincident with anomalous arsenic. A second location located approximately 600 m to the northwest returned a single sample that assayed 184 ppb gold with coincident arsenic and antimony values. 

The 2011 and 2012 soil sampling programs expanded the size of the gold soil anomaly. Prior to the beginning of the 2016 exploration season Independence Gold reported that the anomaly measured approximately 1.2 km long by 100 m wide and strikes 345 degrees. The anomaly coincides with the 98th percentile for gold (73 - 1 250 ppb) and arsenic and covers a topographic high that drains multiple placer mined creeks. The 2016 exploration program increased the length of the anomaly to 1.4 km.
 
The occurrence location marks the approximate center point of the anomaly. 


 

Location Map

Last Updated: Dec 1, 2017

Work History

Year Work Type Comment
2016 Geochemistry: Soil Follow-up soil sampling.
2016 Trenching: Backhoe Three trenches dug using Can-Dig excavator.
2012 Geochemistry: Soil Two soil grids laid out over two different ridge tops.
2011 Geochemistry: Soil Two lines of soil samples.
2010 Geochemistry: Soil One line of soil samples and one rock and one silt sample.

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia


Regional Geology - Bedrock

Supergroup:
Group/Suite: Whitehorse
Formation:
Member:
Terrane:
Period Max: Cretaceous
Age Max: 112 MA
Period Min: Cretaceous
Age Min: 100 MA
Rock Major: granodiorite, granite, quartz diorite, diorite
Rock Minor:
Reference: Ryan et al. (2013) - GSC CGM 116
Geological Unit (1M): mKW
Geological Unit (250K): mKgW

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096948 2016 2016 Soil and Trenching Survey on the Moosehorn Property, Yukon Soil - Geochemistry, Hydraulic - Trenching
096114 2012 2012 Soil Geochemical Survey on the Moosehorn Property Soil - Geochemistry, Soil - Geochemistry
095458 2011 2011 Soil Geochemical Survey on the Moosehorn Property, Yukon Soil - Geochemistry, Soil - Geochemistry, Soil - Geochemistry
095271 2010 2010 Geochemical Report on the Moosehorn Property Rock - Geochemistry, Silt - Geochemistry, Prospecting - Other
094188 2000 Geophysical Report on the Longline Property 2000 Magnetic - Airborne Geophysics
094027 1999 Summary of Geological Field Works-1999-Prospecting, Geochemical, Geophysical, Trenching and Drilling Report Volume 1 Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, IP - Ground Geophysics, Line Cutting - Other, Prospecting - Other, Mechanical - Trenching 34 2648.35
090109 1975 Report on the Geochemical Survey on the Kid and Boy Mineral Claims Soil - Geochemistry, Bedrock Mapping - Geology

Related References

Number Title Page(s) Document Type
YEG2016_OV3 Yukon Mineral Exploration Program: 2016-17 Update p. 54, 56. Annual Report Paper
2016-37 Yukon Plutonic Suites Open File (Geological - Bedrock)
Citations
ATAC RESOURCES LTD, Mar/2010. Notes to Financial Statements. December 31, 2009 and 2008, p. 22. (Available on SEDAR).
GORDEY, S.P. AND RYAN, J.J. 2005. Geology, Stewart River area (115N, 115O and part of 115J), Yukon Territory; Geological Survey of Canada, Open File 4970, scale 1:250 000.
INDEPENDENCE GOLD CORP, Jan/2017. Assessment Report #096948 by D. Gale.
INDEPENDENCE GOLD CORP, Mar/2012. Consolidated Financial Statements, For the Year ended December 31, 2011, p. 7, 13, 15.
INDEPENDENCE GOLD CORP, News Release. 29 Dec/2011, 27 Apr/2016, 7 Jun/2016, 7 Jul/2016, 31 May/2017, 6 Jul/2017.
INDEPENDENCE GOLD CORP, Nov/2012. Assessment Report #096114 by K. Johnston.
INDEPENDENCE GOLD CORP, Nov/2017. Web Site: www.ingold.ca.
JOYCE, N.J. Mar/2002. Geological setting, Nature and Structural Evolution of Intrusion-Hosted Au-Bearing Quartz Veins at the Longline Occurrence, Moosehorn Range area, West-Central Yukon Territory. MSc. Thesis submitted to the University of British Columbia. (Available in the EMR Library).
RYAN, J.J., GORDEY, S.P. 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.
SILVER QUEST RESOURCES LTD, Dec/2011. Assessment Report #095458 by R. Congdon.
SILVER QUEST RESOURCES LTD, News Release. 17 Dec/2009, 12 Oct/2010, 12 Sep/2011, 17 Oct/2011, 16 Dec/2011, 23 Dec/2011.

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