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Occurrence Details


Occurrence Number
115I 050
Occurrence Name
Granger
Occurrence Type
Hard-rock
Status
Drilled Prospect


General Information

Secondary Commodities: copper, silver, molybdenum, gold
Aliases: Rag, Rage, Freegold
Deposit Type(s): Porphyry Cu-Mo-Au
Location(s): 62.296590 N, -137.1818 W
NTS Mapsheet(s): 115I06
Location Comments: Coordinates provided by Triumph Gold in 2020.
Hand Samples Available at YGS: No

Capsule

Work History

This area was explored intensively by individual prospectors for gold veins in the 1930's. Staked as Low cl 9-49 (Y40124) in November 1969 by R. McKamey and optioned in December 1969 to Samson Mine Ltd. and Monarch Metal Mine Ltd., which conducted reconnaissance soil sampling.

Re-staked as the Ag cl 1-36 (Y75866) and Au cl 1-40 (Y75938) in July 1973 by E.D. Campbell and G.E. Smith and optioned to Prism Resources Ltd. and Dynasty Exploration Ltd., which carried out grid soil sampling, magnetic surveying and bulldozer trenching in 1974. Dynasty changed its name to Cyprus Anvil Mining Corp and conducted an IP survey in 1975 before dropping the option.

Re-staked as Seymour cl 1-44 (YA60053) in May 1981 by Arctic Red Resources Corp., which bulldozer trenched later in the year. Re-staked as Rag cl 1-24 (YA86809) in May 1985 and May cl 1 & 3 and Rag cl 25-26 (YA87057) in June 1985 by R. Granger and optioned to Durham Resources Ltd., which performed bulldozer trenching in 1985, geological mapping and geochemical sampling in 1986 and 1987, and bulldozer trenching in 1987. Durham changed its name to Dominion Explorers Inc. (Landmark Corp) in 1987. In 1988, the claims were optioned by Rea Gold Corp (60%) and Verdstone Gold Corp (40%), which drilled one hole (99.7 m) in 1988 before transferring the claims back to Granger in October 1989. G. Harris tied on Bar cl 1-38 (YA92884) to the north in August 1985.

The Rag 1-24 cl (YA86809) and 27-29 Frs. (YA93755) were transferred to B. Harris in December 1993, who subsequently carried out blast trenching and sampling. In December 1993, La Rock Mining Corp. entered into an option agreement to acquire 100% interest in 32 claims on the property. In December 1994, Harris and La Rock Mining filed assessment credit for 7,250 m3 of trenching on the Rag and Elephant claims. In 1996, La Rock filed for assessment credit using physical work (road building) carried out on the Best cl 1-6 (Y25895) and Hope cl 1-2 (Y21249) located 4 km to the south. La Rock carried out 950 m of bulldozer trenching, mapping and sampling of the trenches in 1997. The claims were subsequently allowed to lapse.

Northern Freegold Resources re-staked the Rage claims in 2006 and performed a property wide airborne magnetic and VTEM geophysical survey that included the Granger occurrence. In 2008, Northern Freegold Resources carried out diamond drilling of 10 holes totaling 2,559.6 m at the Granger occurrence.

Triumph Gold Corp. acquired Northern Freegold Resources in 2015 and the Granger occurrence is currently part of the Freegold Mountain Project.

Regional & Preperty Geology

The occurrence is partly underlain by Yukon-Tanana Terrane (YTT). The rocks of the YTT in this region consist of Early Mississippian metamorphic rocks separated into meta-sedimentary and meta-igneous suites. The meta-sedimentary suite consists of micaceous quartz-feldspar gneiss, schist and quartzite. The meta-igneous package is comprised of biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite (Allan & Friend, 2018).

The YTT basement rocks are cut by numerous plutonic and volcanic events from the Mesozoic (Allan & Friend, 2018; AR 090087), including:
1. Early Jurassic monzonite to syenite plutonic suites;
2. Mid-Cretaceous quartz feldspar and feldspar hornblende porphyry dykes and plugs;
3. Mid-Cretaceous Whitehorse quartz monzonite and granite; and,
4. Late Cretaceous Casino quartz monzonite;

The Granger occurrence consists of a shear zone and vein that cut Late Cretaceous Casino quartz monzonite and Mid-Cretaceous Whitehorse suite quartz monzonite and granite that intrude Paleozoic gneiss and schist (AR 092586).

Mineralization & Results

Gold occurs with minor chalcopyrite, pyrite and a trace of molybdenite occur in a steeply-dipping, northwest-trending shear zone about 8 m wide and in a narrow northwest-trending vein 2 m wide which lies 20 m further to the east (AR 092586). The structures lie within geochemical anomalies that returned values up to 370 ppb Au and 949 ppm As.

Highly oxidized vein float was located on the Rag claim group in 1985, a specimen of which assayed 44.2 g/t Au and 147.4 g/t Ag. The 1988 drill hole intersected 3.2 g/t Au over 2 m in a fractured tourmalinized quartz monzonite (AR 092586).

Trenching in 1997 targeted geochemical anomalies in the southeastern portion of the claim block and uncovered a limonitic breccia zone in granodiorite consisting of massive limonite and goethite cut by quartz-calcite veins in Trench 97-2. A 2 m chip sample averaged 3.5 g/t Au and 108 g/t Ag with elevated base metal values (AR 093746).

Diamond drilling carried out in 2008 returned elevated assay results of up to 620 ppb Au and 0.34% Cu over 10.7 m in hole 08ST-05. Mineralization was noted as subparallel quartz veins containing pyrite and chalcopyrite cutting granite (AR 095069). 

Location Map

Last Updated: Dec 16, 2020

Work History

Year Work Type Comment
2008 Drilling: Diamond Ten holes totaling 2559.6 m.
2006 Airborne Geophysics: Magnetic Property wide survey.
2006 Airborne Geophysics: VTEM Property wide survey.
1997 Geochemistry: Rock
1997 Geology: Bedrock Mapping
1997 Trenching: Mechanical Amount of work done: 950 METRES
1994 Trenching: Hand Harris and et al. filed assessment credit for 7,250 m3 of trenching.
1994 Geochemistry: Rock
1993 Trenching: Hand
1988 Drilling: Diamond One hole, 99.7 m.
1988 Geochemistry: Rock
1988 Geochemistry: Soil
1988 Geology: Bedrock Mapping
1987 Geochemistry: Soil Also rock sampling.
1987 Geology: Bedrock Mapping
1986 Geochemistry: Soil Also rock sampling.
1986 Geology: Bedrock Mapping
1985 Trenching: Mechanical
1981 Trenching: Mechanical
1981 Geochemistry: Soil
1975 Ground Geophysics: IP
1974 Geochemistry: Soil
1974 Ground Geophysics: Magnetics
1974 Trenching: Mechanical
1970 Airborne Geophysics: Magnetic Property wide magnetic and EM survey.
1969 Geochemistry: Soil
1930 Other: Prospecting Explored by individual prospectors during 1930's.

Regional Geology - Terrane

Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian


Regional Geology - Bedrock

Supergroup:
Group/Suite: Casino
Formation:
Member:
Terrane:
Period Max: Cretaceous
Age Max: 79 MA
Period Min: Cretaceous
Age Min: 72 MA
Rock Major: quartz monzonite
Rock Minor:
Reference: Allan & Friend (2018) - YGS OF 2018-2
Geological Unit (1M): LKC
Geological Unit (250K): LKqC

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
094745 2006 2006 Geophysical Assessment Report on the Freegold Mountain Property Electromagnetic Airborne Geophysics, Magnetic Airborne Geophysics
093746 1997 Assessment Report on the Rag and May Claims Rock Geochemistry, Soil Geochemistry, Mechanical Trenching
093528 1996 Exploration Report on the Glen,Castle,Rag, and Elephant Claims All Weather Road Development, Surface, Soil Geochemistry, Mechanical Trenching
093189 1994 Exploration Report on the Freegold Mountain Project Freegold Mountain Area Rock Geochemistry, Soil Geochemistry, Line Cutting Other, Prospecting Other, Mechanical Trenching
092586 1988 Summary Report Trenching, Diamond Drilling Rag and May Claim Group All Weather Road Development, Surface, Rock Geochemistry, Soil Geochemistry, Bedrock Mapping Geology, Mechanical Trenching
092139 1987 Rag and May Claims 1987 Summer Geological and Geochemical Program Report Rock Geochemistry, Soil Geochemistry, Bedrock Mapping Geology, Prospecting Other
090906 1981 Arctic Red Resources Corporation Geological and Geochemical Report Seymour 1-44 Claims Soil Geochemistry, Mechanical Trenching
090048 1975 A Report on an Induced Polarization Survey - Ag and Au Claims IP Ground Geophysics
061154 1974 Application for Northern Mineral Assistance Grant Peg, Au, Ag, Add and Gold Star Claim Groups, Cat Trenching Report Gold Star Group Mechanical Trenching
091331 1974 Linecutting Report Ag and Au Groups Line Cutting Other
060200 1970 Report on the Geophysical and Geochemical Surveys Ram and Bow Claim Groups Electromagnetic Airborne Geophysics, Magnetic Airborne Geophysics, Rock Geochemistry, Soil Geochemistry

Related References

Number Title Page(s) Document Type
ARMC007859 Preliminary reconnaissance-type mapping - Freegold Mtn. - Job No. 06065-3 Geoscience Map (General)
ARMC016627 Land and disposition and mineral deposits chart - Freegold - Big Creek area Geoscience Map (General)
ARMC016626 Geology and mineralization chart - Freegold - Big Creek area Geoscience Map (Geological - Bedrock)
093746 Assessment Report on the Rag and May Claims Assessment Report
093528 Exploration Report on the Glen,Castle,Rag, and Elephant Claims Assessment Report
092139 Rag and May Claims 1987 Summer Geological and Geochemical Program Report Assessment Report
YEG2017_4 New contributions to the bedrock geology of the Mount Freegold district, Dawson Range, Yukon (NTS 115I/2, 6 and 7) Annual Report Paper
1987-2(G) Geology of Mt. Nansen (115I/3) and Stoddart Creek (115I/6), Dawson Range, Central Yukon Open File (Geological - Bedrock)
095069 2008 Drilling Report-Stoddart Zone-FREEGOLD MOUNTAIN Property Assessment Report
090048 A Report on an Induced Polarization Survey - Ag and Au Claims Assessment Report
091331 Linecutting Report Ag and Au Groups Assessment Report
2018-2 Bedrock geological map of the Mount Freegold district, Dawson Range Open File (Geological - Bedrock)
092586 Summary Report Trenching, Diamond Drilling Rag and May Claim Group Assessment Report
093189 Exploration Report on the Freegold Mountain Project Freegold Mountain Area Assessment Report
061154 Application for Northern Mineral Assistance Grant Peg, Au, Ag, Add and Gold Star Claim Groups, Cat Trenching Report Gold Star Group Assessment Report
Citations

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