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Occurrence Details


Occurrence Number
115I 112
Occurrence Name
Whale
Occurrence Type
Hard-rock
Status
Showing


General Information

Secondary Commodities: gold, silver
Aliases: Freegold
Deposit Type(s): Vein Au-Quartz
Location(s): 62.258370 N, -137.0629 W
NTS Mapsheet(s): 115I06
Location Comments: Coordinates provided by Triumph Gold in 2020.
Hand Samples Available at YGS: Yes

Capsule

Work History

Originally staked in the early 1930s as Whale cl by J.H. Carpenter and W. Forbes, who trenched until 1937. Re-staked as Free cl 1-32 (Y44182) in November 1969 by Tanzilla Exploration Ltd., which carried out geological mapping, geochemical sampling and trenching in 1970.

Re-staked as Gnat cl 73-100 (YA25004) in August 1979 by Esperanza Exploration Ltd., which sold its interest to Arctic Red Resources Corporation. Arctic Red explored mainly west of the Whale occurrence.

Re-staked as Goldy cl 1-20 (YA81524) in March 1984 by Yukon Revenue Mines Ltd., which carried out geochemical sampling, geological mapping, trenching and road building in 1984-1985 and optioned the property to Durham Resources Ltd. in December 1985. R.A. Granger tied on Brad A cl 1-4 fr (YA93124) and Dur cl 1-22 (YA94623) to the southeast in 1985 and 1986.

Durham Resources staked Goldy cl 22-31 (YA93001) in 1986; carried out geological mapping and geochemical sampling in 1986 and 1987; and bulldozer trenching in 1987. The company was subsequently renamed Dominion Explorers Inc.

Rea Gold Corporation (60%) and Verdstone Gold Corporation (40%), which carried out excavator trenching, geochemical rock sampling and drilled 14 holes (1,130.1 m) later that year at the Goldy occurrence (MINFILE occurrence 115I 182), optioned the claims in 1988. The Goldy, Brad and Dur claims were transferred to Dominion Explorers Inc. in July 1992 and transferred back to Yukon Revenue Mines Ltd. in March 1996.

Re-staked as Goldy cl 1-24 (YC18716) in June 2000 by Midnight Mines Ltd. (B. Harris), who carried out prospecting as well as limited rock and soil geochemistry in 2000.

Northern Freegold Resources consolidated the claims in 2006 as part of their Golden Revenue property and performed a property wide VTEM and magnetic airborne survey, including the Whale occurrence.

Triumph Gold acquired Northern Freegold Resources in 2015 and the property that includes the Whale occurrence is now termed the Freegold Mountain Project.

Regional & Property 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.

The YTT basement rocks are cut by numerous plutonic and volcanic events from the Mesozoic (Murray & Friend, 2018), including:
1. Early Jurassic Long Lake monzonite to syenite plutonic suites;
2. Mid-Cretaceous Mount Nansen Suite andesite to diorite;
3. Mid-Cretaceous Whitehorse granodiorite, quartz monzonite and granite;
4. Late Cretaceous Casino quartz monzonite;
5. Late Cretaceous Prospector Mountain syenite; and,
6. Quartz feldspar and feldspar hornblende porphyry dykes and plugs.

The major structural feature in the area is the Big Creek Fault with steeply-dipping, northwest-trending dextral faults parallel to the more regional Tintina and Denali faults (AR 097175).

Mineralization & Results

The Whale vein strikes west and cuts Early Jurassic syenite porphyry. Quartz-healed breccia zones, fractures and some blue-grey quartz veins containing fine-grained pyrite and arsenopyrite, which returned low gold values cut a white, quartz-feldspar porphyry dyke. This may be the same dyke described in 1934 as 10.9 m wide and extending across three claims (AR 091893; AR 092104; Paulter, 2006).

Two chip samples across 9.1 m reportedly assayed 12.3 g/t Au and 6.9 g/t Au. Trench sampling by Tanzilla in 1970 returned values of only 0.17 g/t Au and 1.4 g/t Ag (AR 060608; Paulter, 2006).

The 1987 trenching and sampling program returned results of 815 ppb Au and 9920 ppm As over 4 m. A soil sample taken near the first grab sample returned 24 ppb Au (AR 092104).

Location Map

Last Updated: Jan 4, 2021

Work History

Year Work Type Comment
2006 Airborne Geophysics: Magnetic Property wide survey.
2006 Airborne Geophysics: VTEM Property wide survey.
2000 Geochemistry: Rock Grab sampling.
2000 Geochemistry: Soil
1987 Geochemistry: Rock Grab and chip sampling.
1987 Geology: Bedrock Mapping
1987 Trenching: Mechanical
1987 Geochemistry: Soil
1986 Geochemistry: Rock
1986 Geology: Bedrock Mapping
1986 Geochemistry: Soil
1985 Development, Surface: All Weather Road
1985 Geochemistry: Rock Grab and chip sampling.
1985 Geology: Bedrock Mapping
1985 Trenching: Mechanical
1984 Development, Surface: All Weather Road
1984 Geochemistry: Rock Grab and chip sampling.
1984 Geology: Bedrock Mapping
1984 Trenching
1979 Trenching
1970 Geochemistry: Silt Silt and stream sediment sampling.
1970 Geology: Bedrock Mapping
1970 Trenching
1933 Trenching Trenched until 1937.

Regional Geology - Terrane

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


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: quart feldspar porphyry/feldspar hornblende porphyry
Rock Minor:
Reference: Allan & Friend (2018) - YGS OF 2018-2
Geological Unit (1M): mKW
Geological Unit (250K): mKfW

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
094555 2004 Geological and Geochemical Assessment Report on the Goldy Property Rock Geochemistry, Property Evaluation Other, Process/Interpret Pre-existing Data
094293 2000 2000 Assessment and Compilation Report on the Dart-Goldy Property Rock Geochemistry, Soil Geochemistry, Prospecting Other
093189 1994 Exploration Report on the Freegold Mountain Project Freegold Mountain Area Rock Geochemistry, Soil Geochemistry, Line Cutting Other, Prospecting Other, Mechanical Trenching
093248 1993 Exploration Report on the Ant Property Freegold Mountain Area Rock Geochemistry, Soil Geochemistry, Prospecting Other
092104 1987 1987 Summer Geological and Geochemical Program Report Goldy, Darb, and Brad Claims Rock Geochemistry, Soil Geochemistry, Bedrock Mapping Geology, Mechanical Trenching
091893 1986 1986 Summer Geological and Geochemical Program Report-GOLDY and BRAD Claims Rock Geochemistry, Soil Geochemistry, Detailed Bedrock Mapping Geology, Prospecting Other, Mechanical Trenching
061045 1974 GM- Gold Corp Report by P.H. Sevensma Data Compilation Pre-existing Data, Research/Summarize Pre-existing Data
060608 1970 Reconnaissance Geology and Geochemistry Free Mineral Claims, Freegold Mountain Area All Weather Road Development, Surface, Silt Geochemistry, Soil Geochemistry, Bedrock Mapping Geology, Property Evaluation 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
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)
097175 Drilling and Geochemical Report on the Freegold Mountain Project Assessment Report
091893 1986 Summer Geological and Geochemical Program Report-GOLDY and BRAD Claims Assessment Report
094293 2000 Assessment and Compilation Report on the Dart-Goldy Property 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
092104 1987 Summer Geological and Geochemical Program Report Goldy, Darb, and Brad Claims Assessment Report
2018-2 Bedrock geological map of the Mount Freegold district, Dawson Range Open File (Geological - Bedrock)
060608 Reconnaissance Geology and Geochemistry Free Mineral Claims, Freegold Mountain Area Assessment Report
094745 2006 Geophysical Assessment Report on the Freegold Mountain Property Assessment Report
Citations
Paulter, J. (2006). Evaluation Report on the Freegold Project for Northern Freegold Resources. Available on SEDAR.

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