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Occurrence Details


Occurrence Number
115I 185
Occurrence Name
Lucinda
Occurrence Type
Hard-rock
Status
Showing


General Information

Secondary Commodities: gold
Aliases: Freegold
Deposit Type(s): Epithermal Au-Ag: Low Sulphidation
Location(s): 62.3145 N, -137.1662 W
NTS Mapsheet(s): 115I06
Location Comments: Georeferenced from Figure 5 (p. 12) in AR 094528.
Hand Samples Available at YGS: No

Capsule

Work History

Staked as the Seymour cl 1-44 (YA60053) in May 1981 by Arctic Red Resources Ltd and in 1985 by Chevron Minerals Ltd.

In 1987, Chevron optioned its claims to Big Creek Joint Venture (Big Creek Resources Ltd. and Rexford Minerals Ltd.). Big Creek Resources Ltd. purchased the claims in the spring of 1990. Rinsey Mines Ltd. optioned Big Creek's claims in February 1991.

ATAC Resources re-staked the area in 1999 and conducted rock geochemistry and prospecting at the Lucinda showing. ATAC carried out further soil and rock geochemistry in 2002 and 2004, as well as hand trenching in 2002 and mechanical trenching in 2004.

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 Lucinda occurrence.

Triumph Gold acquired Northern Freegold Resources in 2015 and the property that includes the Lucinda 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

Prospecting by ATAC in 1999 discovered the Lucinda showing. The showing is a 10 m diameter area of limonitic silicified metasedimentary rock with narrow, crosscutting quartz vein and conformable skarn mineralization (Paulter, 2006; AR 094528).

A sample from Lucinda in 1999 returned 5.2 g/t Au, 196 g/t Ag, 3.68% Pb, 2 650 ppm Zn, >1% As, 182 ppm Bi and 222 ppm Sb. More detailed sampling of this area ireturned 460 to 2 140 ppb Au, 1 033 to 7 580 ppm As, 78 to 348 ppm Sb, 88.2 to 700 g/t Ag and 0.73 to 8.17% Pb from four samples (AR 094477).

Hand pitting in the area of the Lucinda showing in 2002 exposed a quartz vein and also a 40 cm wide skarn band containing pods of limonite boxwork. Chip sampling of these areas returned values at the low end of the range of those reported previously (AR 094477).

Trenching in 2004 returned slightly elevated silver in chip sampling with 16.6 g/t Ag over 3 m in TRS04-10 (Paulter, 2006).
 

Location Map

Last Updated: Jan 7, 2021

Work History

Year Work Type Comment
2006 Airborne Geophysics: Magnetic Property wide survey.
2006 Airborne Geophysics: VTEM Property wide survey.
2004 Geochemistry: Rock Chip and grab sampling.
2004 Geochemistry: Soil
2004 Trenching: Mechanical
2002 Geochemistry: Rock Chip and grab samples.
2002 Geochemistry: Soil
2002 Trenching: Hand
1999 Geochemistry: Rock Prospecting grab samples.

Regional Geology - Terrane

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Regional Geology - Bedrock

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Related References

Number Title Page(s) Document Type
094040 Prospecting, Soil Geochemistry, and Magnetic Surveys on the Seymour Property Assessment Report
094323 Prospecting and Hand Pitting on the Seymour Property Assessment Report
094528 Excavator Trenching on the Seymour Property Assessment Report
097175 Drilling and Geochemical Report on the Freegold Mountain Project 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
2018-2 Bedrock geological map of the Mount Freegold district, Dawson Range Open File (Geological - Bedrock)
094477 Prospecting and Hand Pitting on the Seymour Property Assessment Report
094745 2006 Geophysical Assessment Report on the Freegold Mountain Property Assessment Report
096643 2013 Geological and Geochemical Report for the Freegold Mountain Property Assessment Report
094251 Prospecting on the Seymour Property Assessment Report
Citations
Paulter, J. (2006). Evaluation Report on the Freegold Project for Northern Freegold Resources. Available on SEDAR.

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