Uncategorized
Aldebaran Reports the Results from Seventeen Infill Holes at the Altar Copper-Gold Project in San Juan Argentina
Aldebaran Resources Inc. (TSX-V: ALDE) (OTCQX: ADBRF) is pleased to provide results of the remaining 17 holes from the infill drilling program at the Altar project in San Juan, Argentina. The goal of these holes was to upgrade resource blocks classified as Inferred to the Measured & Indicated categories. All holes reported today were focused either on the Altar Central, Altar East or Altar United zones. All holes for the 2024/2025 field program have now been reported.
Highlights
ALD-25-057EXT
- 816.15 m of 0.53% CuEq from 184.00 m depth
- Including 410.00 m of 0.68% CuEq from 530.00 m depth
ALD-25-081DEXT
- 491.10 m of 0.51% CuEq from 411.00 m depth
- Including 137.00 m of 0.61% CuEq from 622.00 m depth
- Original extension hole ALD-25-081EXT was lost due to technical problems and 81DEXT was drilled to by-pass some trapped tools
ALD-25-132EXT
- 721.15 m of 0.41% CuEq from 144.00 m depth
- Including 112.15 m of 0.66% CuEq from 753.00 m depth
ALD-25-183EXT
- 736.00 m of 0.35% CuEq from 240.00 m depth
- Including 138.00 m of 0.61% CuEq from 838.00 m depth
ALD-25-251B
- 836.60 m of 0.44% CuEq from 247.00 m depth
ALD-25-252
- 561.50 m of 0.42% CuEq from 438.50 m depth
ALD-25-255
- 685.80 m of 0.41% CuEq from 299.70 m depth
- Including 371.50 m of 0.57% CuEq from 614.00 m depth
- Including 214.00 m of 0.71% CuEq from 688.00 m depth
- Including 371.50 m of 0.57% CuEq from 614.00 m depth
John Black, Chief Executive Officer of Aldebaran, commented: “With all holes from the 2024/2025 field program now reported, the next major milestones for the Altar project are the PEA in Q3-2025, the mineral resource update in Q4-2025/Q1-2026, and the PFS in Q4-2026. The results from the infill program continue to demonstrate the size of the Altar project, which remains open in several directions.”
Kevin B. Heather, Chief Geological Officer of Aldebaran, commented: “The results reported today, along with the previously released batch of holes, demonstrate the continuity and grade consistency of the Altar mineralization, which will increase the confidence level of the next mineral resource as we move the project to the PFS stage.”
Table 1 below shows detailed assays for all 17 holes. Figure 1 displays a plan map of the completed drill hole locations, while figures 2 to 8 display cross sections of the holes reported herein.
| Table 1 – Drill Hole Results | |||||||||
|
|
From (m) |
To (m) |
Interval (m) |
Cu (%) |
Au (g/t) |
Ag (g/t) |
Mo ppm |
As (ppm) |
CuEq (%) |
| ALD-25-030BEXT – Total Depth 800.00 m | |||||||||
| Interval | 47.00 | 169.00 | 122.00 | 0.15 | 0.03 | 0.37 | 10 | 485 | 0.16 |
| Interval | 321.00 | 407.25 | 86.25 | 0.18 | 0.03 | 0.31 | 12 | 174 | 0.19 |
| Interval | 432.30 | 519.00 | 86.70 | 0.14 | 0.02 | 1.08 | 11 | 159 | 0.16 |
| Interval | 713.00 | 800.00 | 87.00 | 0.15 | 0.02 | 1.63 | 25 | 234 | 0.17 |
| ALD-25-057EXT – Total Depth 1,000.15 m | |||||||||
| Interval | 184.00 | 1,000.15 | 816.15 | 0.50 | 0.05 | 0.98 | 57 | 263 | 0.53 |
| Incl. | 530.00 | 940.00 | 410.00 | 0.64 | 0.04 | 1.06 | 81 | 207 | 0.68 |
| ALD-25-081DEXT – Total Depth 902.10 m | |||||||||
| Interval | 411.00 | 902.10 | 491.10 | 0.47 | 0.03 | 1.01 | 91 | 93 | 0.51 |
| Incl. | 622.00 | 759.00 | 137.00 | 0.56 | 0.04 | 1.07 | 150 | 84 | 0.61 |
| And | 805.00 | 902.10 | 97.10 | 0.60 | 0.03 | 1.25 | 93 | 56 | 0.64 |
| ALD-25-132EXT – Total Depth 865.15 m | |||||||||
| Interval | 96.00 | 865.15 | 769.15 | 0.37 | 0.03 | 0.62 | 51 | 199 | 0.39 |
| Incl. | 144.00 | 865.15 | 721.15 | 0.38 | 0.03 | 0.65 | 52 | 191 | 0.41 |
| Incl. | 753.00 | 865.15 | 112.15 | 0.62 | 0.03 | 1.36 | 73 | 48 | 0.66 |
| ALD-25-171EXT – Total Depth 560.00 m | |||||||||
| Interval | 70.00 | 560.00 | 490.00 | 0.29 | 0.08 | 0.61 | 22 | 188 | 0.32 |
| ALD-25-180EXT – Total Depth 991.20 m | |||||||||
| Interval | 496.00 | 991.20 | 495.20 | 0.23 | 0.06 | 0.88 | 43 | 102 | 0.26 |
| ALD-25-183EXT – Total Depth 976.00 m | |||||||||
| Interval | 240.00 | 976.00 | 736.00 | 0.31 | 0.07 | 1.08 | 56 | 137 | 0.35 |
| Incl. | 838.00 | 976.00 | 138.00 | 0.55 | 0.12 | 2.03 | 59 | 71 | 0.61 |
| ALD-25-200EXT – Total Depth 602.50 m | |||||||||
| Interval | 559.00 | 602.50 | 43.50 | 0.26 | 0.03 | 0.36 | 46 | 4 | 0.28 |
| ALD-25-250 – Total Depth 1,012.00 m | |||||||||
| Interval | 418.00 | 1,012.00 | 594.00 | 0.35 | 0.04 | 1.05 | 84 | 473 | 0.39 |
| Incl. | 902.00 | 932.00 | 30.00 | 0.53 | 0.05 | 1.36 | 79 | 472 | 0.57 |
| ALD-25-251B – Total Depth 1,083.60 m | |||||||||
| Interval | 74.00 | 192.00 | 118.00 | 0.26 | 0.07 | 0.81 | 19 | 96 | 0.29 |
| Interval | 247.00 | 1,083.60 | 836.60 | 0.40 | 0.07 | 1.37 | 25 | 204 | 0.44 |
| Incl. | 513.00 | 557.00 | 44.00 | 0.53 | 0.11 | 1.45 | 22 | 265 | 0.58 |
| And | 910.10 | 1,000.00 | 89.90 | 0.55 | 0.06 | 1.63 | 25 | 173 | 0.59 |
| ALD-25-252 – Total Depth 1,000.00 m | |||||||||
| Interval | 438.50 | 1,000.00 | 561.50 | 0.38 | 0.05 | 4.04 | 41 | 481 | 0.42 |
|
|
From (m) |
To (m) |
Interval (m) |
Cu (%) |
Au (g/t) |
Ag (g/t) |
Mo ppm |
As (ppm) |
CuEq (%) |
| ALD-25-253 – Total Depth 853.00 m | |||||||||
| Interval | 524.00 | 608.00 | 84.00 | 0.12 | 0.06 | 1.26 | 19 | 133 | 0.15 |
| Interval | 695.00 | 853.00 | 158.00 | 0.18 | 0.04 | 0.61 | 42 | 54 | 0.21 |
| ALD-25-254 – Total Depth 887.00 m | |||||||||
| Interval | 506.00 | 587.00 | 81.00 | 0.14 | 0.03 | 0.39 | 41 | 137 | 0.17 |
| Interval | 601.00 | 715.00 | 114.00 | 0.11 | 0.02 | 0.33 | 36 | 18 | 0.13 |
| Interval | 801.00 | 887.00 | 86.00 | 0.12 | 0.03 | 0.52 | 57 | 75 | 0.15 |
| ALD-25-255 – Total Depth 985.50 m | |||||||||
| Interval | 299.70 | 985.50 | 685.80 | 0.39 | 0.03 | 0.76 | 50 | 125 | 0.41 |
| Incl. | 614.00 | 985.50 | 371.50 | 0.54 | 0.03 | 1.06 | 79 | 98 | 0.57 |
| Incl. | 688.00 | 902.00 | 214.00 | 0.68 | 0.04 | 1.04 | 76 | 31 | 0.71 |
| ALD-25-256 – Total Depth 978.60 m | |||||||||
| Interval | 213.00 | 370.00 | 157.00 | 0.19 | 0.14 | 1.05 | 9 | 369 | 0.24 |
| Interval | 406.00 | 978.60 | 572.60 | 0.30 | 0.04 | 1.02 | 36 | 210 | 0.33 |
| ALD-25-257 – Total Depth 930.00 m | |||||||||
| Interval | 351.00 | 930.00 | 579.00 | 0.28 | 0.05 | 1.75 | 32 | 418 | 0.31 |
| ALD-25-258 – Total Depth 900.00 m | |||||||||
| Interval | 617.00 | 900.00 | 283.00 | 0.31 | 0.02 | 1.02 | 55 | 109 | 0.33 |
| The grades are uncut. CuEq values were calculated using copper, gold, silver, and molybdenum. Metal prices utilized for the calculations are Cu = US$3.00/lb, Au = US$1,400/oz, Ag = US$18/oz, and Mo = US$10/lb. Recoveries used for the supporting metals found in the CuEq equation are as follows: Au = 50%, Ag = 51%, (based on historical metallurgical test work) and Mo = 70% (benchmarking from similar deposits). The formula utilized to calculate equivalent values is CuEq % = Cu % + (Au g/t * 0.34025) + (Ag g/t * 0.00446) + (Mo ppm * 0.00023). EXT indicates the hole was extended from a previously drilled hole | |||||||||
Qualified Person
The scientific and technical data contained in this news release has been reviewed and approved by Dr. Kevin B. Heather, B.Sc. (Hons), M.Sc, Ph.D, FAusIMM, FGS, Chief
Geological Officer and director of Aldebaran, who serves as the qualified person (QP) under the definitions of National Instrument 43-101.
About Aldebaran Resources Inc.
Aldebaran is a mineral exploration company that was spun out of Regulus Resources Inc. in 2018 and has the same core management team. Aldebaran holds an 80% interest in the Altar copper-gold project in San Juan Province, Argentina. The Altar project hosts multiple porphyry copper-gold deposits with potential for additional discoveries. Altar forms part of a cluster of world-class porphyry copper deposits which includes Los Pelambres (Antofagasta Minerals), El Pachón (Glencore), and Los Azules (McEwen Copper). In November 2024 the Company announced an updated mineral resource estimate for Altar, prepared by Independent Mining Consultants Inc. and based on the drilling completed up to and including the 2023-24 field season (independent technical report prepared by Independent Mining Consultants Inc., Tucson, Arizona, titled “Technical Report, Estimated Mineral Resources, Altar Project, San Juan Province, Argentina“, dated December 31, 2024 – see news release dated November 25, 2024).
Figure 1 – Location Map of Drill Holes Completed in the 2024/2025 Field Season
Figure 2 – Holes ALD-25-132EXT, ALD-25-081D and ALD-25-256 in Cross Section (Looking Northeast).
Figure 3 – Holes ALD-25-251B and ALD-25-255 in Cross Section (Looking Northeast).
Figure 4 – Holes ALD-25-180EXT, ALD-25-183EXT, ALD-25-200 and ALD-25-251B in Cross Section (Looking North).
Figure 5 – Holes ALD-25-252, ALD-25-257 and ALD-25-258 in Cross Section
Figure 6 – Holes ALD-25-057EXT, ALD-25-171EXT, ALD-25-254 and ALD-25-255 in Cross Section (Looking Southeast).
Figure 7 – Holes ALD-25-183EXT and ALD-25-253 in Cross Section (Looking Southeast).
Figure 8 – Hole ALD-25-250 in Cross Section (Looking East-Northeast).
Posted August 7, 2025
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