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Arizona Sonoran Drills 1.97% CuT over 540 ft (164.6 m) at Parks/Salyer and Begins Drilling South of the Parks/Salyer Deposit

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Arizona Sonoran Drills 1.97% CuT over 540 ft (164.6 m) at Parks/Salyer and Begins Drilling South of the Parks/Salyer Deposit

 

 

 

 

 

Arizona Sonoran Copper Company Inc. (TSX:ASCU) (OTCQX:ASCUF) announces drill assays from 5 holes at Cactus East and 4 from Parks/Salyer (18,467 ft | 5,629 m) (see FIGURES 1-18). Drilling at 125 ft (38 m) drill spacings demonstrating the continuity and thicknesses of mineralization within the proposed Cactus East and Parks/Salyer high grade underground oxide and enriched mineralized zones.

 

Additionally, the Company has begun exploratory drilling at the MainSpring property (Parks/Salyer South) (FIGURE 4), with five holes now complete. The program consists of up to 10 drill holes, targeting shallow mineralization 1,500 ft (~450 m) south of the Parks/Salyer deposit. The Parks/Salyer deposit contains 143.9 Mtons @ 1.009% Cu M&I and 48.4 Mtons @ 0.967% Cu Inferred (PR October 16, 2023) and remains open to the south onto the MainSpring property. Historic ASARCO drilling supports the continuity of gradually shallower mineralization towards the south, which ASCU is testing via the current drill program.

 

Drilling Highlights:

  • Drilling
    • Exploration: Up to 10 drill holes targeting mineralization 1,500 ft (457 m) south of the Parks/Salyer deposit at MainSpring
    • Development: 125 ft (38 m) drill spacing used for Cactus East and Parks/Salyer drilling programs targeting definition of measured resources
  • ECP-164 (P/S): 540.0 ft (164.6 m) @ 1.97% CuT, 1.80% Cu TSol, 0.013% Mo (enriched)
    • Incl 210.0 ft (64.0m) @ 2.96% CuT, 2.88% Cu TSol, 0.011% Mo
  • ECP-161 (P/S): 754.7 ft (230.0 m) @ 1.34% CuT, 1.12% Cu TSol, 0.016% Mo (enriched)
    • Incl 50.0 ft (15.2 m) @ 1.91% CuT, 1.47% Cu TSol, 0.009% Mo
  • ECP-171 (P/S): 538.5 ft (164.1 m) @ 1.65% CuT, 1.51% Cu TSol, 0.006% Mo (enriched)
    • Incl 170.0 ft (51.8) @ 2.49% CuT, 2.42% Cu TSol, 0.006% Mo
    • 569.8 ft (173.7 m) @ 0.69% CuT, 0.018% Mo (primary)
  • ECE-149 (East): 273.4 ft (83.3 m) @ 2.66% CuT, 2.49% Cu TSol, 0.032% Mo (enriched)
    • Incl 121.9 ft (37.2 m) @ 3.96% CuT, 3.83% Cu TSol, 0.035% Mo
  • ECE-143 (East): 635.2 ft (193.6 m) @ 1.17% CuT of continuous mineralization
    • 487.5 ft (148.6 m) @ 1.39% CuT, 1.30% Cu TSol, 0.032% Mo (enriched)
    • Incl 240.0 ft (73.2 m) @ 2.29% CuT, 2.20% Cu TSol, 0.040% Mo
    • 147.7 ft (45 m) @ 0.43% CuT, 0.020% Mo (primary)
  • ECP-167 (P/S): 461.2 ft (140.6 m) @ 1.51% CuT, 1.10% Cu TSol, 0.014% Mo (enriched)
    • Incl 110.9 ft (33.8 m) @ 2.52% CuT, 2.43% Cu TSol, 0.007% Mo
    • 139.3 ft (42.5 m) @ 0.82% CuT, 0.032% Mo (primary)
  • ECE-146 (East): 784.7 ft (239.2 m) @ 0.90 % CuT of near continuous mineralization
    • 168.1 ft (51.2 m) @ 1.34% CuT, 1.30% Cu TSol, 0.09% Mo (oxide)
    • Incl 35.2 ft (10.7 m) @ 3.19% CuT, 3.11% Cu TSol, 0.011% Mo
    • 312.0 ft (95.1 m) @ 1.23% CuT, 1.09% Cu TSol, 0.017% Mo (enriched)
    • Incl 131.0 ft (39.9 m) @ 1.97% CuT, 1.87% Cu TSol, 0.017% Mo

NOTE: True widths are not known

 

George Ogilvie, Arizona Sonoran President and CEO commented, “At Cactus, the team continues to derisk the asset and drive project development forward on all fronts while concurrently reducing drill spacing to support Feasibility-level requirements. In addition, one drill is now focused on the extension of Parks/Salyer mineralization to the south. Earlier this year, we strategically optioned to acquire the MainSpring (Parks/Salyer South) Property. The option agreement gains access to the southern extension of our +1% Cu Parks/Salyer deposit, where our goal is to not only grow the resource but also confirm near surface mineralization as drilling moves south, as seen by historical drilling results.”

 

Drilling Recap

 

A total of 106,815.9 ft (32,557.5 m) over 51 holes, from the Cactus East and Parks/Salyer infill-to-measured drilling programs have been reported this year. The geological team continues to work toward completing the drilling needed for measured resources for the Definitive Feasibility Study planned for 2024. Drilling continues ASCU’s focus on defining the high-grade cores of the Cactus East and Parks/Salyer orebodies with encouraging and consistent intervals of mineralization. Holes ECE-143 and ECE-146 support the continuity of width and grade indicated by the earlier 250 ft (76 m) infill-to-indicated drill program, especially the high-grade oxide cap that overlies the enrichment blanket that forms the heart of the orebody. Holes ECE-182 and ECE-183 were drilled at the extreme NE end of the Cactus East to extend thick oxide mineralization encountered earlier in the Indicated Drilling Program toward the bounding East Fault. These holes did encounter enriched and higher-grade primary mineralization below the fault, but the thickness of mineralization was terminated by the fault.

 

TABLE 1: Cactus East and Parks/Salyer Drilling Highlights

 

Holeid Zone Feet Metres Cu T Cu Tsol Mo
from to length from to length % % %
PARKS/SALYER
ECP-161 enriched 1,274.3 2,029.0 754.7 388.4 618.4 230.0 1.34 1.12 0.016
including 1,317.0 1,367.0 50.0 401.4 416.7 15.2 1.91 1.47 0.009
and 1,407.2 1,587.0 179.8 428.9 483.7 54.8 1.97 1.72 0.018
ECP-164 enriched 1,397.0 1,937.0 540.0 425.8 590.4 164.6 1.97 1.80 0.013
including 1,447.0 1,657.0 210.0 441.0 505.1 64.0 2.96 2.88 0.011
primary 1,937.0 1,994.8 57.8 590.4 608.0 17.6 0.72 0.04 0.030
ECP-167 enriched 852.3 900.6 48.3 259.8 274.5 14.7 0.69 0.67 0.005
enriched 1,336.3 1,797.5 461.2 407.3 547.9 140.6 1.51 1.10 0.014
including 1,376.1 1,487.0 110.9 419.4 453.2 33.8 2.52 2.43 0.007
primary 1,797.5 1,936.8 139.3 547.9 590.3 42.5 0.82 0.06 0.032
including 1,847.0 1,877.0 30.0 563.0 572.1 9.1 1.77 0.13 0.083
ECP-171 enriched 687.0 736.0 49.0 209.4 224.3 14.9 0.49 0.48 0.004
enriched 855.5 1,394.0 538.5 260.8 424.9 164.1 1.65 1.51 0.006
including 875.0 915.0 40.0 266.7 278.9 12.2 2.09 2.06 0.004
and 970.0 1,140.0 170.0 295.7 347.5 51.8 2.49 2.42 0.006
primary 1,394.0 1,963.8 569.8 424.9 598.6 173.7 0.69 0.05 0.018
including 1,465.0 1,499.0 34.0 446.5 456.9 10.4 1.07 0.08 0.005
and 1,519.0 1,567.0 48.0 463.0 477.6 14.6 1.28 0.08 0.051
and 1,756.4 1,759.0 2.6 535.4 536.1 0.8 15.16 0.78 0.099
CACTUS EAST
ECE-143 enriched 1,374.5 1,862.0 487.5 418.9 567.5 148.6 1.39 1.30 0.032
including 1,396.0 1,636.0 240.0 425.5 498.7 73.2 2.29 2.20 0.040
primary 1,862.0 2,009.7 147.7 567.5 612.6 45.0 0.43 0.05 0.020
ECE-146 oxide 1,025.5 1,051.6 26.1 312.6 320.5 8.0 0.31 0.28 0.005
oxide 1,122.2 1,290.3 168.1 342.0 393.3 51.2 1.34 1.30 0.009
including 1,205.0 1,240.2 35.2 367.3 378.0 10.7 3.19 3.11 0.011
enriched 1,354.0 1,666.0 312.0 412.7 507.8 95.1 1.23 1.09 0.017
including 1,354.0 1,485.0 131.0 412.7 452.6 39.9 1.97 1.87 0.020
primary 1,666.0 1,906.9 240.9 507.8 581.2 73.4 0.38 0.04 0.011
including 1,706.9 1,767.1 60.2 520.3 538.6 18.3 0.52 0.05 0.011
ECE-149 oxide 1,314.0 1,443.2 129.2 400.5 439.9 39.4 0.42 0.40 0.013
oxide 1,476.0 1,534.2 58.2 449.9 467.6 17.7 1.85 1.82 0.022
including 1,516.0 1,534.2 18.2 462.1 467.6 5.5 3.73 3.69 0.024
enriched 1,613.0 1,886.4 273.4 491.6 575.0 83.3 2.66 2.49 0.032
including 1,621.1 1,743.0 121.9 494.1 531.3 37.2 3.96 3.83 0.035
primary 1,886.4 1,905.5 19.1 575.0 580.8 5.8 0.42 0.04 0.008
ECE-182 enriched 1,732.0 1,800.3 68.3 527.9 548.7 20.8 0.53 0.50 0.022
including 1,735.0 1,768.0 33.0 528.8 538.9 10.1 0.73 0.72 0.018
primary 1,800.3 1,905.2 104.9 548.7 580.7 32.0 0.50 0.06 0.030
ECE-183 enriched 1,672.0 1,744.0 72.0 509.6 531.6 21.9 1.10 0.97 0.018
primary 1,744.0 1,910.8 166.8 531.6 582.4 50.8 0.49 0.07 0.020
  1. Intervals are presented in core length and are drilled with vertical, or steep dip angles.
  2. For Cactus East: Drill assays assume a mineralized cut-off grade of 0.1% CuT reflecting the potential for heap leaching of open pit material in the case of Oxide and Enriched or in the case of Primary material to provide typical average grades. Holes were terminated below the basement fault.
  3. For Parks/Salyer: Drill assays assume a mineralized cut-off grade of 0.5% CuT reflecting the potential for heap leaching of underground material in the case of Oxide and Enriched or in the case of Primary material, 0.1% CuT, to provide typical average grades. Holes were terminated below the basement fault.
  4. Assay results are not capped. Intercepts are aggregated within geological confines of major mineral zones.
  5. True widths are not known.

 

Table 2: Drilling details

 

Hole Easting (m) Northing (m) Elevation (ft) TD (ft) Azimuth Dip
ECE-143 424107.9 3646941.0 1468.7 2274.0 90.0 -80.0
ECE-146 424244.6 3647007.6 1501.8 2096.0 320.0 -80.0
ECE-149 424338.7 3646828.0 1494.1 2000.0 335.0 -80.0
ECE-182 424488.4 3647150.2 1512.0 1934.5 235.0 -80.0
ECE-183 424464.0 3647179.4 1512.0 2030.3 235.0 -80.0
ECP-161 421967.1 3644978.4 1376.3 2137.0 0.0 -90.0
ECP-167 422042.5 3644942.3 1376.2 1964.9 0.0 -90.0
ECP-171 421964.9 3644893.1 1374.1 2013.2 0.0 -90.0

 

Quality Assurance / Quality Control

 

Drilling completed on the project between 2020 and 2023 was supervised by on-site ASCU personnel who prepared core samples for assay and implemented a full QA/QC program using blanks, standards, and duplicates to monitor analytical accuracy and precision. The samples were sealed on site and shipped to Skyline Laboratories in Tucson AZ for analysis. Skyline’s quality control system complies with global certifications for Quality ISO9001:2008.

 

Technical aspects of this news release have been reviewed and verified by Allan Schappert – CPG #11758, who is a qualified person as defined by National Instrument 43-101– Standards of Disclosure for Mineral Projects.

 

Links from the Press Release

 

October 16, 2023: https://arizonasonoran.com/news-releases/arizona-sonoran-announces-updated-mineral-resource-estimate-for-the-cactus-project/
Figures 1-18: https://arizonasonoran.com/projects/cactus-mine-project/press-release-images/

 

About Arizona Sonoran Company

 

ASCU’s objective is to become a mid-tier copper producer with low operating costs and to develop the Cactus and Parks/Salyer Projects that could generate robust returns for investors and provide a long term sustainable and responsible operation for the community and all stakeholders. The Company’s principal asset is a 100% interest in the Cactus Project (former ASARCO, Sacaton mine) which is situated on private land in an infrastructure-rich area of Arizona. Contiguous to the Cactus Project is the Company’s 100%-owned Parks/Salyer deposit that could allow for a phased expansion of the Cactus Mine once it becomes a producing asset. The Company is led by an executive management team and Board which have a long-standing track record of successful project delivery in North America complemented by global capital markets expertise.

 

Posted October 30, 2023

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