Industria
NevGold Samples 1.22% Copper and 8.19 g/t Gold And Defines 4-Km Long Copper-Gold-Silver Trend At The Zeus Copper Project in The Hercules Copper District, Idaho
” or the “ ”) ) is pleased to announce that it has identified high-grade copper, gold, and silver mineralization at surface at the newly staked Zeus Copper Project (“Zeus”, “Zeus Project”) in the emerging Hercules Copper District of southwestern Idaho. As detailed in NevGold's News Release dated April 18, 2024 ( ) ( ), NevGold will continue its active field program at Zeus throughout the summer.
The preliminary rock chip sampling by NevGold, as well as historical sampling (Henricksen, 1975) and compilation of geologic data, has identified at least five targets within the Zeus Project. This preliminary work indicates a large footprint of mineralization and potential for multiple copper porphyry producing intrusive centers.
The Thorn Springs Target is the site of a large porphyry copper style alteration zone (Figure 5) that was first identified by Henricksen (1975). Sampling by Henricksen and NevGold ( ) has identified significant copper-gold-silver mineralization. The style of alteration, strong oxidation, and presence of copper minerals suggests that erosion has exposed the top of the copper-gold mineralization and that the . Thorn Springs has significant soil cover and poor outcrop exposure; these conditions may conceal a much larger mineralization footprint. The use of modern exploration methods, including soil geochemistry and high-resolution geophysics, will be key to identifying mineralization that may have been missed by previous prospectors. A significant portion of the Thorn Springs Target is located on land managed by the Bureau of Land Management (“BLM”) and could be drill tested with an Exploration Notice permit, which takes approximately 4-6 weeks to complete.
The Mortimer Target is the southern most exposure of a 4-kilometer trend of copper-gold-silver mineralization that extends north-northeast to the Abundance Target. The target includes the area around the historical Mortimer Mine where significant skarn mineralization has been observed in open cuts, mine dumps, and outcrops. Multiple samples (Figure 6) have shown 0.8-1.3% copper in marble, magnetite, and intrusive rocks associated with the skarn.
The Iron Mountain Target is located along the northeast continuation of the Mortimer-Abundance Trend and shows highly anomalous copper values in Triassic intrusive rocks as well as a large amount of mapped Huntington Formation, the formation that hosts copper mineralization at Hercules Silver's copper porphyry discovery at the Hercules Project. The work by Henricksen (1975) identified hornfels metavolcanic and metasedimentary host rocks that were intruded by Triassic dikes and plutons. Henricksen (1975) also reported “unusually large concentrations of sulfides” including the copper mineral chalcopyrite and the zinc mineral sphalerite. The many geologic similarities to the Hercules Project suggests that the area has strong potential to host a blind porphyry copper deposit.
The Abundance Target is defined by a 0.6-kilometer geochemical trend of copper up to 0.25% situated in the northeastern extension of the 4-kilometer Mortimer-Abundance Trend. The zone is hosted within the metasediments of the Weatherby Formation, a known cover unit emplaced by the Bayhorse Thrust Fault. The underlying andesitic volcanics of the Lower Huntington Formation are rich in iron, which is a critical factor for intruding porphyritic plutons to host potentially economically recoverable mineralization. Additionally, Henricksen (1975) reported the presence of supergene copper enrichment in a now collapsed adit of the Abundance Mine. This area has many analogous attributes to the blind porphyry copper deposit discovered by Hercules Silver at the Hercules Project.
Rock chip samples from the Golden Goose Target, named after Golden Goose Canyon, which lies just to the west, contained some of the highest silver values (114 g/t) and gold values (1.03 g/t) identified at Zeus to date. This area is similar to the Abundance Target in that the Weatherby Formation is emplaced by the Bayhorse Thrust Fault over the Huntington Formation. This area also has the potential to contain a blind porphyry copper deposit similar to that which was discovered by Hercules Silver.
NevGold will continue its active exploration program at Zeus in 2024 including:
Figure 8 - Zeus Project Location and Hercules Copper Trend. To view image please click here
Adair, D. H. (1985). Report for Anglo-Bomarc Mines, LTD.
Fankhauser, R. E. (1968). Idaho Geological Survey.
Henricksen, T. A. (1975). A Thesis Submitted to Oregon State University.
John, D.A., Ayuso, R.A., Barton, M.D., Blakely, R.J., Bodnar, R.J., Dilles, J.H., Gray, Floyd, Graybeal, F.T., Mars, J.C., McPhee, D.K., Seal, R.R., Taylor, R.D., and Vikre, P.G., 2010, , chap. B of : U.S. Geological Survey Scientific Investigations Report 2010–5070–B, 169 p.
Lowell, J.D., and Guilbert, J.M., 1970, Lateral and vertical alteration-mineralization zoning in porphyry ore deposits: Economic Geology, v. 65, p. 373–408.
Lund, K. (2021). U.S. Department of the Interior, U.S. Geological Survey.
Skurla, S. J. (1974). Thesis Submitted to Oregon State University.
For further information, please contact Brandon Bonifacio at bbonifacio@nev-gold.com, call 604-337-4997, or visit our website at www.nev-gold.com .
: All sampling was conducted under the supervision of the Company's geologists and the chain of custody from the Project to the independent sample preparation and analytical facility, American Assay Labs in Sparks, NV, was continuously monitored. The samples were crushed, pulverized and sample pulps were analyzed using the methods IO-FAAu30 and IM-4AB52.
Technical information contained in this news release has been reviewed and approved by Derick Unger, CPG, the Company's Vice President, Exploration, who is NevGold's Qualified Person under National Instrument 43-101 and responsible for technical matters of this release.
NevGold is an exploration and development company targeting large-scale mineral systems in the proven districts of Nevada and Idaho. NevGold owns a 100% interest in the Limousine Butte and Cedar Wash gold projects in Nevada, and the Nutmeg Mountain gold project and Zeus copper project in Idaho.
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