Mr. Cal Herron reports
NEVADA KING HITS MULTIPLE +80M INTERVALS OF HIGH-GRADE GOLD/SILVER MINERALIZATION AT ATLANTA INCLUDING 6.55 G/T AU AND 100.8 G/T AG OVER 82.3M
Nevada King Gold Corp. has released assay results from eight reverse circulation (RC) holes from its 60,000-metre phase 2 drilling program at its 5,166-hectare (51.6-square-kilometre) Atlanta gold mine project, located in the prolific Battle Mountain trend, 264 kilometres northeast of Las Vegas, Nev. Four of the holes targeted the Atlanta mine fault zone (AMFZ), while the other four tested the adjacent West Atlanta graben zone (WAGZ).
- An interval of
6.55 grams per tonne gold and 100.8 g/t silver over 82.3 metres, including 26.71 g/t Au over 12.2 m,
in angle hole AT23NS-133F is
the third-most-gold-rich drill hole ever recorded at Atlanta
and comes on the heels of the most-gold-rich drill hole ever recorded at the project -- AT23WS-44, which was reported on
Oct. 2, 2023,
and returned 11.64 g/t Au over 108.2 m, including 37.16 g/t Au over 29.0 m.
Previous drilling by Nevada King in the vicinity of today's AT23NS-133F provided little indication of such high grade, although two historical holes drilled by Bobcat in 1988 and one hole drilled by Goldfields in 1990 did contain elevated high-grade intervals in the same general area. Results for vertical Bobcat holes 88-9 (12.2 m at 32.55 g/t Au -- the second-most-gold-rich drill hole at Atlanta) and 88-14 (three m at 34.66 g/t Au) were not included in Gustavson's 2020 resource model because of uncertain collar locations, while vertical Goldfields core hole AC-1 (4.1 m at 30.24 g/t Au) was used in the 2020 resource model, but its exact collar location was also uncertain. The high-grade hit in AT23NS-133F corroborates both the locations and high grades in these nearby historical holes and establishes a northwest-trending, elevated high-grade zone at least 30 m long that is interpreted to be a tensional, secondary fracture in the footwall of the West Atlanta fault that probably connects across the major northerly trending feeder faults. This intercept supports the multijewellery box model recently described by the company in its
Oct. 2, 2023,
release and provides another structural target that the company can apply to other portions of the deposit in its pursuit of elevated high grades.
- AT23NS-133F is hosted along the east side of the West Atlanta fault, whereas AT23WS-44 is located 200 m to the northwest along the West Atlanta fault No. 1 -- a different structure. Several occurences of elevated high-grade mineralization have been found throughout the Atlanta deposit by both Nevada King and historical operators. Of all the holes hosting elevated high-grade intercepts, only AT23NS-133F occurs proximal to other holes hosting similar grades. For the remaining elevated high-grade holes, there are no nearby drill intercepts that definitively suggest proximity to very-high-grade mineralization, which highlights the necessity for tight drill spacing, focused on high-angle feeder structures.
Cal Herron, exploration manager of Nevada King, stated: "Nevada King's 2021 phase 1 drill program revealed potential for significantly expanding the shallow, high-grade mineralization around the pit and into the north extension target 500 m north of the pit. The 2022 drill program saw development of our current geological model propounding high-angle fault control over higher-grade mineralization within a relatively subhorizontal replacement horizon together with realization of the potential posed by the West Atlanta graben zone for significantly increasing the size of the deposit. In 2023, our focus shifted to sharpening definition of high-grade feeder structures, while the recent discovery of elevated high-grade gold mineralization, now in two different parts of the deposit, has whetted our appetite for more bonanza-type mineralization.
"The overall distribution of higher grades is controlled by northerly trending, high-angle faults that served as feeders (or conduits) for mineralizing fluids; however, the distribution of elevated high-grade mineralization appears to be more controlled by secondary faults that cut across the primary feeder structures at angles around 30 degrees to 45 degrees. These secondary structures form in response to stress building up between the main fault strands, forming tensional 'gash dilations' that often focus boiling within the openings, thus resulting in bonanza-grade chutes. Bonanza chutes are common within Au-Ag hydrothermal deposits and were the object of historical mining activity around the world. Finding such bonanza chutes in this day and age is a rarity, and these extremely high-grade but small zones can have an outsized impact on a deposit's economics. Right now, it looks like we may have several such bonanza chutes shaping up at Atlanta, which will make for a very busy winter of testing."
Hole AT23NS-133E was sited at the same collar location as AT23NS-133F and hit 1.99 g/t Au and 118.45 g/t Ag over 80.8 m, including 10.25 g/t Au over 1.5 m,
in the same fault block, but approximately 35 m away from AT23NS-133F. Both holes entered and exited the mineralized horizon at similar depths, and more importantly, both holes exited the base of the high-grade zone (196.6 m in NS-133F and 198.2 m in NS-133E) at almost the exact same depth, indicating that the high-grade "core" zone is most likely subhorizontal, not high angle.
AT23NS-116 (88.4 m at 2.52 g/t Au and 50.4 g/t Ag) and AT23NS-117 (80.8 m at 2.55 g/t Au and 40.1 g/t Ag) were drilled immediately west of the East Atlanta fault (EAF) to verify the V-shaped reverse fault wedge formed between two northerly trending faults. Both holes penetrated the high-grade wedge and drilled through the down-faulted block occurring beneath the wedge, doubling the known combined thickness of the mineralized zone. Establishing this "couplet" geometry is important, as both fault blocks occur near surface, are strongly oxidized and contain moderate-to-high-grade gold, and as such could play an important role in any future mining scenario. This same structural couplet is observed for at least 200 m in sections previously reported both north and south of Section 22-9N(2).
AT23HG-32 (45.7 m at 2.28 g/t Au and 145.5 g/t Ag) was collared 17 m west of the West Atlanta fault and twinned failed hole AT22HG-11 (21.3 m at 1.26 g/t Au and 85.1 g/t Ag), which was lost in the mineralized zone. Simply achieving full drill penetration of the entire mineralized zone almost doubles both thickness and grade, which is a common theme at Atlanta throughout the deposit and mandates redrilling holes that did not go deep enough.
AT23HG-33 (33.5 m at 0.54 g/t Au and 83.7 g/t Ag) stepped 20 m west of HG-32, and the company now sees an abrupt drop in gold mineralization, but the silver grade remains elevated. Additional drilling will continue to track the mineralization westward across the WAGZ in anticipation of hitting higher grade and thickness closer to the West Atlanta No. 2 fault as observed to the north and south.
Comparison with Nevada King and historical holes along Section 22-9N(2):
Targeting the high-grade feeders is showing very-high-grade results that can significantly impact the overall resource. An attached table summarizes averaged drill hole intercepts for the company's holes and for historical holes that were included in the Gustavson 2020 resource model along Section22-9N(2). Looking at just the drilling across the AMFZ, the four Kinross angle holes average 1.65 g/t gold equivalent over an average 25.9 m thickness, whereas the 16 Nevada King holes average 3.73 g/t gold equivalent over an average 50.4 m thickness, representing a doubling in average thickness and more than a doubling of average grade.
This discrepancy in both thickness and grade is largely attributed to three factors: (i) the Kinross angle holes missed (as did almost all of the historical holes) the higher-grade and thicker structural couplet between the East Atlanta and Atlanta King faults; (ii) Nevada King's holes did a much-better job of fully penetrating the entire mineralized thickness in each fault block compared with Kinross's angle holes; and (iii) Nevada King's holes did a much-better job of testing the high-grade feeder structures that historical explorers failed to recognize. The very-high-grade intercept in AT23NS-133F also exerted a strong influence on Nevada King's average grade.
Quality assurance/quality control protocols
All reverse circulation samples from the Atlanta project are split at the drill site and placed in cloth and plastic bags, utilizing a nominal two-kilogram sample weight. Certified reference material standards, blanks and duplicates are inserted into the sample stream on site on a one-in-20 sample basis, meaning all three inserts are included in each 20-sample group. Samples are shipped by a local contractor in large sample shipping crates directly to American Assay Lab in Reno, Nev., with full custody being maintained at all times. At American Assay Lab, samples were weighed then crushed to 75 per cent passing two millimetres and pulverized to 85 per cent passing 75 micrometres, in order to produce a 300 g pulverized split. Prepared samples are initially run using a four-acid and boric-acid digestion process and conventional multielement ICP-OES analysis. Gold assays are initially run using 30-gram samples by lead fire assay with an OES finish to a 0.003-part-per-million detection limit, with samples greater than 10 ppm finished gravimetrically. Each sample is also run through a cyanide leach for gold with an ICP-OES finish. The quality assurance/quality control procedure involves the regular submission of certified analytical standards and property-specific duplicates.
The scientific and technical information in this news release has been reviewed and approved by Calvin R. Herron, PGeo, who is a qualified person as defined by National Instrument 43-101.
About Nevada King Gold Corp.
Nevada King is the third-largest mineral claim holder in the state of Nevada, behind Nevada Gold Mines (Barrick/Newmont) and Kinross Gold. Starting in 2016, the company staked large project areas hosting significant historical exploration work along the Battle Mountain trend located close to currently producing or past-producing gold mines. These project areas were initially targeted based on their potential for hosting multimillion-ounce gold deposits and were subsequently staked following a detailed geological evaluation. District-scale projects in Nevada King's portfolio include: (i) the 100-per-cent-owned Atlanta mine, located 100 kilometres southeast of Ely; (ii) the Lewis and Horse Mountain-Mill Creek projects, both located between Nevada Gold Mines' large Phoenix and Pipeline mines; and (iii) the Iron Point project, located 35 km east of Winnemucca, Nev.
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