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Estelle Copper Gold
ESTELLE COPPER GOLD PROJECT (District-scale Au, Ag, Cu)
- District-scale Gold-copper porphyry project – Chasing an elephant in elephant country
- Project located on Giant plutonic gold systems
- High-grade gold occurrences over the entire project area; a robust gold system.
- Historic exploration only scratched the surface
- Proposed gas pipeline passes by property and near the Beluga gas power station
- Adjacent to Gold mining inc. 6.3Moz Au, 28.7Moz Ag, 480kt Cu Whistler project Source: http://www.goldmining.com/_resources/reports/Whistler-2016-Technical-Report.pdf and in the same assemblage of rocks that hosts Northern Dynasty’s giant Pebble copper-gold-molybdenum-silver deposit (70Moz Au, 3.4b lb Mo, 344Moz Ag) https://www.northerndynastyminerals.com/pebble-project/reserves-resources/
- Multiple walk up drill targets to be targeted to define a resource under JORC code.
The Estelle Copper Gold Project is comprised of one-hundred and seventy-three (173) unpatented mining claims located on State of Alaska public lands (Figure 2). There are multiple prospects within the project area; Oxide (Oxide Ridge, Oxide Valley, Oxide North and Oxide South); Stoney (Stoney, Tomahawk, Kid and Trundle); Mount Estelle (Mount Estelle, Shoeshine and Train); and Emerald (RPM and Revelation).
The Estelle Copper Gold project is located approximately 110 miles northwest of Anchorage and approximately 112 miles southeast of McGrath; within the Seward Meridian and partially within the Talkeetna A-6, Tyonek D8, and Lime Hills D-1 USGS 63,360 Quadrangles.
The rocks in the area of the Oxide prospects are Jurassic and Cretaceous marine sedimentary rocks that are intruded by the 65-66 Ma granodiorite of Mount Estelle (Reed and Nelson, 1980).
The granodiorite at this prospect has a leucocratic equigranular phase and a porphyritic phase with potassium feldspar phenocrysts up to 10 mm in size (Cominco American Incorporated, unpublished report). As described by Cominco American, chalcopyrite, pyrrhotite, arsenopyrite, molybdenite and pyrite occur as joint coatings, in veins, and as disseminations adjacent to northwest-striking mineralized joint sets.
The Stoney, Trundle, Kid and Tomahawk prospects are located on the northern side of Mt Stoney. These prospects are located on the Yentna trend of Late Cretaceous/early Tertiary composite plutons described by Reed and Nelson (1980).
All other prospects are located within and adjacent to the Mount Estelle pluton (Reed and Elliott, 1970). In the central part of the pluton, a biotite-hornblende-quartz monzonite intrudes Mesozoic marine sedimentary rocks of the Kahiltna terrane.
It is described as a high-grade, polymetallic vein occurrence located near a strong, circular magnetic high pointing to the possibility of nearby porphyry mineralization. Native gold occurs with chalcopyrite, pyrite, arsenopyrite, and pyrrhotite associated with sericite, carbonate and chlorite alteration in sheeted joints, stockwork veinlets, and circular structures that range from 1 inch to more than 15 feet in diameter (Millholland,1995; Crowe and others, 1991; Crowe and Millholland, 1990).
These structures are in the felsic and intermediate phases of the pluton. Gold associated with pyrrhotite, chalcopyrite, pentlandite and molybdenite also occurs in ultramafic rocks on the south side of the pluton.